2013 Cold Months FCC Proof Of Performancee Testing Report

Transcription

1 2013 Cold Months FCC Proof Of Performancee Testing Report For Generic System Anywhere, USA Cablesoft Engineering, Inc. Mark Bowers, VP of Engineering

2 FCC Testing Report for {the} Generic MSO System in Anywhere, USA Region On February 27 th & 28 th, 2013, I met with representatives of Generic MSO to conduct an overall FCC Proof of Performance test on their cable television system(s) in the Anywhere, USA area. Most tests, except the 24 Hour Level Variation Analysis (conducted by system personnel), were performed with a Sunrise Telecom Broadband AT2500RQv 3 spectrum analyzer; however other test instrumentation is sometimes utilized depending on the test conducted. See the full test equipment listing later in this report. The AT2500RQv 3 allows for the capture of data (analog and QAM) and system response forms, which are included in the detailed report section of this document. Besides testing of the primary headend facility, seven (7) field test points in the Anywhere area HFC (hybrid fiber-coaxial) system were chosen which represent diverse distributed points by geographic area and fiber system-coaxial cascade. Remedial or recommended actions, where necessary, to bring the headend or plant to within FCC specifications are noted later in the report. Anywhere, USA System Overview Communities fed from the Anywhere, USA headend facility are System 1, Anywhere, System 2, System 3, System 4, System 6, System 7, and System 8, USA. The unincorporated community of System 5 is also fed from the Anywhere headend facility. The Anywhere regional channel lineup is comprised of a total of 53 NTSC analog channels (not including pilot carriers at channel 117 & 135), with CH61 the highest frequency NTSC channel slot in service that carries video programming. Channel slots 20 & 39 remain open in the lower analog spectrum. A HITS/Motorola NASRAC system creates forty-nine (49) video 256-QAM carriers that utilize spectrum from CEA/EIA channels 56 through 111 (some slots remain unused, plus CH95 through CH99 are reserved for analog), plus channels 115 & 116. Finally, the System 6 system (only) locally injects an additional off-air channel on CEA/EIA slot 95. NASRAC programming is also transported to the Region 2, USA headend via a 10 GigE network ring with redundancy. A 100 self-support tower at the Anywhere headend site provides for off-air (OA) signal reception, and TVRO antenna s provide remaining satellite analog and digital signals (except for several local origination channels). The Anywhere tower/headend site is an estimated 150 feet above average terrain, thus the overall effective tower height is estimated to be 250 ft. A hub site at the System 8 office building provides for the processing of a DOCSIS based cable modem service. The present DOCSIS configuration is two (2) 256-QAM downstream carriers (channels 64 & 65) with 16-QAM return(s). An ADC Homeworx telephony system (circuitswitched utilizing COFDM/32-QAM in both the downstream and upstream paths) is also located at the System 8 office site and utilizes spectrum from 718 to 736 MHz for the downstream carriers. Telephony and cable modem services are now only offered in the System 8 system, with System 7 and System 6 recently transitioned to VoIP. Replacement equipment for the Homeworx system is difficult to obtain and often in poor condition since it is used. At some point, the System 8 system will transition to VoIP as well, which will then free the spectrum for three additional DS 256-QAM carriers in all systems (CH112 through CH114). Cablesoft Engineering, Inc. (CSEI)

3 All systems utilize HFC architecture. The Anywhere system has 13 local optical receive node areas plus a small coaxial area (node) fed directly from the headend site. Remaining communities are fed via one or several optical receive nodes, with outlaying systems fed via a 1550 nm fiber optics transport network due to their distance from the primary headend. Line equipment and approximate cascades by community are as follows: System 1, USA The plant utilizes 1 GHz Scientific Atlanta line equipment spaced at 870 MHz. Active cascades are generally held to 6 to 7 maximum including the optical receiver. Anywhere, USA The plant utilizes 1 GHz Scientific Atlanta line equipment spaced at 870 MHz. Active cascades are generally held to 6 to 7 maximum including the optical receiver. System 2, USA The plant utilizes 1 GHz Scientific Atlanta line equipment spaced at 870 MHz. Active cascades are generally held to 6 to 7 maximum including the optical receiver. System 3, USA The plant utilizes 1 GHz Scientific Atlanta line equipment spaced at 870 MHz. Active cascades are generally held to 6 to 7 maximum including the optical receiver. System 4, USA The plant utilizes 1 GHz Scientific Atlanta line equipment spaced at 870 MHz. Active cascades are generally held to 6 to 7 maximum including the optical receiver. System 5 area The plant utilizes 1 GHz Scientific Atlanta line equipment spaced at 870 MHz. Active cascades are generally held to 6 to 7 maximum including the optical receiver. System 6, USA 750 MHz Scientific Atlanta equipment, and there are five (5) max actives in cascade including the optical node. System 7, USA 750 MHz Scientific Atlanta equipment, and there are seven (7) max actives in cascade including the optical node. System 8, USA 750 MHz Scientific Atlanta equipment, and there are seven (7) max actives in cascade including the optical node. FCC POP testing was conducted at the Anywhere headend facility, along with the following field test points. System 1 1 Anywhere 1 System 2 1 System 4 1 System 6 1 System 7 1 System 8 1 Testing was not conducted in the System 3 or System 5 areas during this testing period. See the following section for remedial recommendations where applicable, along with a general summary of testing results. Headend Analog RF Levels: All RF levels, visual and aural, were within FCC recommendations. Visual and Aural Carrier Frequency: All modulators were operating on assigned frequencies. LFI/HUM: All LFI/HUM measurements were well within FCC specifications. CCN (carrier-to-composite noise): As always, CCN tests extremely well in the Anywhere Cablesoft Engineering, Inc. (CSEI)

4 headend, with very low noise levels at the combined system test point. ICR (in-channel response): ICR tests very good on all channels. Color Tests (differential gain, differential phase, and CLDI): All color measurements were well within FCC limits, except for CH05 (TWC) when using the TWC internal VITS signal. When using the test signals {still} sent from their studio, older WeatherStar units typically have poor ICR and often fail one or several of the video measurements (differential gain almost always fails, differential phase sometimes fails). Discrete Intermodulation Distortions (discrete beats): There were no measurable discrete beats in any of the analog channels. Other: When first tested, the CH13 modulator showed significant video compression. After I adjusted the %Video Modulation control several times, the problem disappeared. Several of the Anywhere modulators, including CH13, are of the Scientific Atlanta Model 9270 vintage and are getting quite old, with dirty potentiometers now beginning to cause problems. Headend Digital (QAM) All (49) QAM carriers tested very well at the headend. Field Test Points Analog and QAM General: All field testing results were very good. In general, only those analog channels that tested poorly at the headend tested with problems in the field. CH05 color tests are poor (as at the headend), all other analog channels test good unless noted otherwise. LFI/HUM: As in previous tests, LFI/HUM levels in System 7 and System 6 are elevated (but not failing). I believe this is a grounding/bonding issue in the System 7 hub, but it s just a guess given the testing results at those locations. The waveform does not peak at either 60 or 120 Hz; but is a complex, constantly changing waveform that usually indicates ground/bonding issues. Since LFI/HUM levels are still within FCC limits, no remedial action is required at this time. CCN: Both System 7 and System 6 show some slight degradation of CCN in the higher frequencies see the waveforms later in this report. This noise degradation is on the order of {only} several db, so no remedial action is required, but it is noted in case the problem worsens. Leakage: Signal leakage was measured at all seven field test points, with leakage measured on the highest analog or QAM carrier in the system (to compare with leakage levels in the lower aeronautical frequency bands). No plant leakage was found during my tests; however it must be noted that I tested ONLY at the test point location itself this does not reflect the results of a complete system leakage drive-out (significant portion) of any of these plants. 24 Hr Level Variation In general, most of the 24 Hr level variation testing performed well. The System 8, System 6 and System 1 test points showed evidence of level (system response) variation in the general area of channels 99 through 15; however the remaining four test points tested well, with no evidence of that variation. Although one would be tempted to think the variation must be coming from the Anywhere headend, since it occurs in roughly the same spectral area in all three test points with this issue; the fact that the remaining four locations test OK seems to indicate three separate problems in these plants. Only further testing will be able to confirm whether it s a headend Cablesoft Engineering, Inc. (CSEI)

5 intermittent level(s) variation or separate plant issues. Results by system are: System 8, USA CH14 is low, and CH15 exceeds the allowable 3 db variance between channel RF levels (low as well). Visual-to-aural level ratio also fails channels 15 & 16, presumably due to the same response problem. Finally, Level Variation Across the Entire Band exceeds the amount allowed given the analog bandwidth in use. See the 24 Hr Level Variation grading sheet for detail. System 7, USA All parameters pass. System 6, USA Response problems in CH99 & CH14 cause similar failures as those described at the System 8 TP. System 1, USA A response problem at CH14 causes near failure on the Adjacent Channel Level Variation spec, and the Visual-to-aural level ratio fails channels 14. System 4, USA All parameters pass. Anywhere, USA All parameters pass. System 2, USA All parameters pass. Cablesoft Engineering, Inc. (CSEI)

6 Comments on How Detailed Testing Is Conducted Overall Headend and Field Test Point System Response Waveforms were captured at the headend and various field test point locations, which are intended to illustrate how the fiber, trunk and feeder systems are performing overall. Brief comments have been added to the waveforms, including occasional annotations regarding specific problems. Signal Level Data and 24 Hour Variation Analysis These measurements are conducted in the headend and at field test points, and include the following separate FCC measurement areas: Minimum Acceptable Video Signal Levels, Signal Overload, Aural Signal Separation Levels, Adjacent Channel Level Variation, Non-Adjacent Channel Level Variations, and 24 Hour Variation & 6-Month Variation, any one channel. Carrier Frequency Data Carrier frequency measurements are generally conducted at the headend only, since plant components will not change the measurements. Carrier-to-Noise Data CCN, or carrier-to-composite noise readings in should be in the mid-50 s to low-60 s at the headend facility, and CCN field test readings should be in the mid-40's to low-50's. CCN (CCN includes noise in the video signal, whereas a C/N measurement does not) is measured on each channel by taking 25 successive readings, with the average of the 25 readings then recorded. A preamp and tunable bandpass filters are utilized as necessary to ensure accurate results (any input to the analyzer of +5 dbmv allows for accurate measurements). In-Channel Response In-channel response measurements at the headend and field test point locations are conducted using test signals available in the analog channel 'vertical interval' (scan lines 10-20, even or odd field), or by substituting a test signal at the video input of the channel (modulator) under test. Acceptable ICR test signals for use with the SRT AT2500RQv analyzer are sin x/x, multi-burst (MBR), NTC7 combination multi-burst (has leading black level pulse before the multiburst), and the ghost-canceling reference (GCR) or video sweep signal. FM Deviation Data This measurement is optional under present FCC rules, and was not measured unless a problem was noted. This parameter can be accurately measured using the HP8591C spectrum analyzer. Percent AM Modulation Depth Data This measurement is optional under present FCC rules, but is examined as part of the headend testing process during VITS injection. Any channels where %AM Modulation varies by more than +/- 5% from the recommended level are usually adjusted. Cablesoft Engineering, Inc. (CSEI)

7 Color Performance Data Color performance testing is required once every three years, and involves the following additional tests on analog carriers: Differential Phase, Differential Gain, and Chrominance-To-Luminance Delay Inequality (group delay between the chrominance and luminance signals). Differential gain and phase measurements are taken ten successive times, with the average value of the ten tests recorded. The CLDI measurement is taken 100 times for luminance carrier timing and 150 times for chrominance carrier timing, with those two average values then utilized to calculate a final group delay measurement value. The above description is for the firmware routines in the HP8591C spectrum analyzer, the test instrument normally used during color tests. Low Frequency Disturbance (HUM) Data LFI/HUM measurements include any low-frequency disturbance below 1000 Hz including ground loop currents (poor grounding/bonding practices in the headend or field). Intermodulation Distortion Discrete intermodulation (IM) distortions were measured in the headend, while composite distortions (CSO, CTB) are measured in the field. CSO measurements are taken on all test channels, while CTB distortions are measured where open channel slots exist adjacent to the spectrum under analysis. This method is utilized so that single channel outages are not created during field testing. CTB should generally track with CSO distortion measurements (within several db), and where they do not - further analysis is often initiated. CTB measurements are taken 25 successive times, with the average of the 25 measurements then recorded. CSO measurements are taken 25 times and averaged at three potential CSO beat locations: -.75 MHz, +.75 MHz, and MHz relative to the luminance carrier. The worst-case average reading of the three CSO beat locations is then recorded. A preamp and tunable bandpass filters are utilized to ensure accurate results for both tests. System Leakage/Ingress Cablesoft Engineering, Inc. tests signal leakage in the 700 to 800 MHz spectral range using a Tektronix SA2600/EP1 spectrum analyzer in calibrated field strength mode. A calibrated test antenna is employed, along with gain/loss charts for the test antenna and coaxial test lead. Readings from the SA2600 in field strength mode are in µvolts/meter and are automatically adjusted for the frequency monitored. The highest frequency (analog or QAM) carrier on the system is normally the carrier monitored. Although the FCC limit for non-aeronautical frequencies is 150 µvolts/meter at 3 meters, the leakage of any cable system carrier, analog or QAM, when identified is considered serious and further investigation is always recommended. Cablesoft Engineering, Inc. (CSEI)

8 Digital Testing All 64 & 256-QAM carriers are tested to full ANSI/SCTE 2011 specifications except phase noise and transit delay. Accurate phase noise measurements are not possible at present except with laboratory grade test equipment [phase noise measurements from the AT2500RQv QAM analyzer are included in the report], and the transit delay measurement is not required (waivered at present). MER, EVM, ENM, P/V (Frequency Response), Group Delay, BER (pre and post-fec), and adaptive equalizer stress are measured at the headend on all channels, and on selected channels at each field test point. The FCC Proof of Performance testing procedure information now follows, with the detailed data section following that. Cablesoft Engineering, Inc. (CSEI)

9 Statement of Qualifications H. Mark Bowers is Vice President of Engineering at Cablesoft Engineering, Inc., an engineering and consulting firm for the telecommunications industry. Mark has been involved in RF broadcasting since 1966 and telecommunications since He has held various cable industry posts; with his last two positions as Director of Corporate Technical Planning for Centel Cable Communications Company in Chicago, and Vice President of Corporate Engineering for Warner Communications in Dublin, OH. Cablesoft Engineering began operation in 1990 and was fully incorporated in Mr. Bower's education includes the U.S. Naval Nuclear Engineering School, numerous US Naval electronics schools, and BS and MS Degrees in Management of Technology. Mark is a member of the SCTE (Society of Cable Telecommunication Engineers), the IEEE (Institute of Electrical and Electronic Engineers), and a 25-year Senior Member and licensed Master Telecommunications Engineer with inarte, the International Association for Radio, Telecommunications and Electromagnetics. Mr. Bowers was issued a First Class FCC License (P ) on May 23 rd, Cablesoft Engineering, Inc. provides engineering and consulting services in telecommunications, primarily cable television; and full RF spectrum analysis from 10 KHz through 6.2 GHz. The CSEI business office is located in Honey Creek, IA, just outside Omaha, USA. Telecommunication services focus primarily in the areas of network engineering and design, and FCC Proof of Performance testing and Technical Due Diligence for system sale/acquisition. RF spectrum analysis services focus primarily in the scanning, classification and location of interfering signals, including terrestrial interference at TVRO satellite antenna sites. Cablesoft Engineering, Inc. also provides RF/AC system design and fiber optic design. Please see our web site at for further information. Cablesoft Engineering, Inc. maintains in-house and field-testing capabilities for all FCC related spectrum analysis requirements from 10 KHz through 6.2 GHz, including interference testing to 6.2 GHz, and component scalar analysis and return loss measurements from 5 MHz through 2 GHz. TEST CERTIFICATION. I hereby certify that all tests were performed as accurately as possible, and according to NCTA Recommended Practices For Measurements On Cable Television Systems, 3 rd Ed, unless otherwise noted and outlined in this report. Name (printed) H. Mark Bowers Signature H Mark Bowers Title (printed) Vice President of Engineering Date March 13 th, 2013 Cablesoft Engineering, Inc.

10 FCC Technical Requirements FCC Analog Performance Standards for Cable Television Systems Parameter Performance Limit Video carrier frequency No specific requirement; except for aeronautical offsets at ± 5 KHz, which apply to all signals of dbmv, which lie in any of the aeronautical bands (108 to 137 MHz & 225 to 400 MHz). Aural intercarrier frequency MHz ± 5 khz Minimum signal level 3 dbmv at the end of a reference 100 foot drop cable connected to any tap, and 0 dbmv at subscriber outlets. Signal level stability 8 db variation over the sum of two 24 hour tests, one taken in the coldest month(s) of the year and one in the hottest month(s) of the year. Adjacent level difference 3 db Total level variation over all 300 MHz systems: 10 db channels (analog) carried MHz systems: 11 db MHz systems: 12 db MHz systems: 13 db MHz systems: 14 db MHz systems: 15 db Maximum level Below device overload (about +15 dbmv at each customer premise device). Relative aural carrier level -10 to -17 dbc In-channel frequency response 4 db total variation from 0.5 MHz below the visual carrier to 3.75 MHz above the visual carrier (± 2 db P/V). Visual carrier-to-noise ratio 43 db Note: does not apply to broadcast signals received and delivered outside of their grade B contour. Composite Triple Beat, Composite Second Order -53 dbc, time averaged, for normally modulated video carriers operating at normal levels, except -47 dbc for CTB in HRC & IRC systems and CSO in HRC systems. Hum Modulation 3% pk-pk relative to sync peak level Chrominance Delay ± 170 nsec Differential Gain 20 % Differential Phase ± 10 degrees Subscriber Terminal Isolation 18 db minimum. All subscriber taps purchased by this cable system have a specified isolation of 18 db or greater. Documentation is available on request from the system. Cablesoft Engineering, Inc.

11 ANSI/SCTE Digital (QAM) Performance Standards Parameter Digital Channel Power (average power level of digital channel) 64 QAM >= -15 dbmv to +15 dbmv 256 QAM >= -12 dbmv to +15 dbmv C/(N+I) [MER]. In a 6 MHz band where C/(N+I) includes the simultaneous presence of all additive impairments in the channel bandwidth including CTB and CSO. Group Delay Phase Noise Max Amplitude Variation [Frequency Response] Microreflections bound for dominant echo [Equalizer Stress] Round Trip Transit Delay from headend to most distant customer >= 27 db for 64-QAM >= 33 db for 256-QAM Performance Limit 370 nanoseconds/6 MHz across assigned spectrum KHz offset relative to center of QAM spectrum. (1) 6 db p-p across the 6 MHz carrier bandwidth. -10 db at.5 μsec -15 db at 1 μsec -20 db at 1.5 μsec -30 db at 4.5 μsec.8 milliseconds to most distant subscriber (typically much less). (2) (1) Although ANSI/SCTE specifications for phase noise are -88 dbc/hz, FCC Part rules presently relax this spec. to -86 dbc/hz. At present, Phase Noise is difficult to measure accurately except with laboratory grade test equipment. CSEI is waiting on the next firmware version for the AT2500RQv 3 spectrum analyzer, which may offer measurement accuracy adequate to meet FCC compliance. (2) Transit Delay measurements are presently exempt from testing requirements, per FCC rules. Cablesoft Engineering, Inc.

12 Test Equipment List Instrument Manufacturer Model Serial Number Last Calibration 1.5 GHz Spectrum/QAM Analyzer Sunrise Telecom AT2500RQv /13/ GHz Spectrum Analyzer HP/Agilent 8591C 3441A /13/ GHz Spectrum Analyzer Tektronix SA2600/EP1 B /09/2012 Sencore 8-VSB Probe with RFXpert Software Sencore Electronics DTU-234X /12/2007 Upstream Carrier Generator Sunrise Telecom CM1000-USG /10/2006 NTSC Video Test Generator Tektronix TSG-90 B /05/2012 Applied Broadband Noise Generator Instruments NS June 2012 EMI Antenna 400 MHz to 6 GHz Aaronia Hyperlog 4060 June 2009 Omni-Directional Leakage Antenna 118 to 940 MHz Pasternack PE51001 N/A Feb MHz Dual Trace Oscilloscope Rigol DSE 1052E DS1ED /7/2010 Digital Amprobe Fluke 80I-600 N/A N/A Digital Volt Meter Fluke 8024A N/A Misc probes, filters, etc. Misc. Misc. Misc. N/A Local System Equipment Stealth Meters JDSU SDA 5000 series Unknown Recent Trilithic Meters Trilithic DSPi series Unknown Recent Cablesoft Engineering, Inc.

13 FCC Testing Explanation and Detailed Data Sections

14 General Testing Procedures The following describes a general philosophy and methodology regarding headend and plant testing procedures. As has been stated in other sections of this report, the NCTA Recommended Practices For Measurements On Cable Television Systems, 3 rd Edition have been adhered to unless otherwise noted on the testing forms. The test parameters are divided between those most accurately measured with more signal level than commonly available at the end of a 100 sample drop cable (and which do not change appreciably after the last active device), and those which must be measured at the end of a reference drop cable to assure quality reception for subscribers. In general, those measurements dealing with system response and distortion can be more accurately determined at a high-level drop, while those dealing with delivered signal levels must be done at the actual subscriber tap location. During actual FCC testing, a 100 RG-6U cord is utilized to simulate subscriber conditions. Performance goals are: Spec System EOL Goal FCC Specification P/V N/2 + 2, where N is the number of ± 2 db p-p variation in any 6 MHz span. amplifiers in cascade across active system spectrum C/N 43 db for older (non HFC) systems 46 db for rebuilt HFC systems A general dialogue on system testing now follows. 36 db-june db-june db-june 1995 CTB 60 dbc 53 dbc CSO 60 dbc 53 dbc SYSTEM RESPONSE AND IN-CHANNEL RESPONSE System response is simply a determination of the peak-to-valley (P/V) of the delivery network to the test point, and assumes a flat response at the headend. This is a general cable system requirement with minimum performance at: Where: P/V=N/2+1 (or 2 [depending on the MSO]) P/V is the total peak-to-valley response in db. N is the total number of amplifiers in cascade to the test point. This data can be taken using the same sweep equipment and procedures used for everyday system alignment. In-channel response can also be measured by one of several other methods. Multiburst measurements may be taken in both the headend and field within specific channels using a precision demodulator and waveform monitor or equivalent. Video sweep may also be injected within specific modulators, with response measured at either the headend or field using a video sweep generator and spectrum analyzer with analog or digital storage. CSEI generally records a single waveform in peak-hold at each field TP (and at the headend) that illustrates overall response, with total Cablesoft Engineering, Inc.

15 bandwidth and amplifier forward equalization taken into account. The SRT AT2500RQv 3 spectrum analyzer is the normal test instrument utilized, but other analyzers such as the HP/Agilent 8591C may also be employed with a good degree of accuracy. GENERAL C/N, CTB, AND CSO MEASUREMENTS For purposes of these tests, measurements will be taken at normal operating levels and with normal programming if possible. This limits measurement resolution in the case of CTB and CSO, but also reduces the amount of programming interruption and labor required for the tests. For purposes of determining the channel most affected by CTB (in theory), first identify the highest channel in the system that carries video programming. Now add together the luminance carrier frequency of that channel and the luminance carrier frequency of channel 2 and divide by two. The channel whose luminance carrier is closest to this average frequency is theoretically the most effected and should be included among the channels tested if possible. Other channels should be evenly distributed across the total frequency range in use. EXAMPLE Highest Channel 62 Whose Luminance Carrier is MHz Lowest Channel 2 Whose Luminance Carrier is MHz The Sum of Luminance Frequencies is MHz Which, Divided by 2 = MHz The Closest Channel is 11 Whose Luminance Carrier is MHz [Worst case CSO typically peaks at the lower and upper spectral boundaries, for reasons beyond the scope of this report dialog.] It should be noted that actual system CTB sometimes demonstrates a different spread for worst-case distortions. Test channels are normally spread throughout the entire system bandwidth to be tested, while attempting to ensure that at least one test channel lands close to or at the predicted worst-case channel. CARRIER-TO-NOISE RATIO (C/N) The Carrier-to-Noise ratio (C/N) is a measure of the noise contribution of the distribution plant, independent of the noise within the modulating video information. It is defined as the ratio between sync peak power and rms noise measured in a 4 MHz bandwidth. Since noise is only added by active equipment, it is valid to measure this parameter at any point after the last amplifier. Modern spectrum analyzers with C/N measurement routines often perform a gated measurement, and in actuality are measuring CCN, or carrier-to-composite noise, which includes any noise present in the modulating video content. Peak sync power of the luminance carrier is measured and compared with the average (RMS) noise power on a quiet line in the video vertical interval. A quiet line (no video or test signal present) is normally chosen from lines 10 through 20, even or odd scans, in the vertical interval of Cablesoft Engineering, Inc.

16 the NTSC-M signal. CSEI normally employs the Sunrise Telecom AT2500RQv 3 spectrum analyzer to make the CCN measurement, but the HP/Agilent 8591C is equally accurate and may be employed in certain situations. COMPOSITE TRIPLE BEAT (CTB) CTB is a measure of the cumulative effect of symmetrical distortions that take place in system amplifiers, fiber optic links and microwave links. Because of the even spacing of cable channels, these distortion products will fall near the visual (luminance) carriers of all the channels (in HRC and IRC systems, they will fall exactly on the carriers), with the greatest effect at channels near the middle of the frequency range as noted earlier. CTB is defined as the ratio between the sync peak level of the desired carrier and the rms level of the distortion products as measured through a 30 khz filter centered on the visual carrier frequency when the desired carrier is removed. CTB can be measured with either normally modulated television carriers or with CW carriers, whose level is set to the sync peak level, in place of the normal television channels. Systems are normally designed and specified with performance referenced to the CW carrier test, as it gives repeatable results. Use of modulated carriers will give results that vary by 2-4 db over a period of several minutes. This is because the total peak power in the system varies depending on the coincidence (combining of sync pulses in and out of phase over time) of the synchronizing pulses on the channels carried. On average, CTB measured using normally modulated TV signals will be about 12 db lower (better) than CW signals. Despite its limitations, the FCC specifies CTB performance using normally modulated TV signals operating at normal levels. Operators are allowed to observe the CTB level over a period of time and to record the average level of distortion. This means that CTB measurements can be made without interrupting programming except on the channel being measured, but also means that the measurement sensitivity will be limited, as the operational CTB of a properly operating system should be approximately 65 db, which is near the limit of most instruments. Finally, if an open channel slot exists above or below the channel to be tested, it is valid to measure the CTB component in the open channel slot where no luminance carrier exists, since CTB distortion levels typically vary only slightly from channel to channel. As with C/N (or CCN), it is important to limit the bandwidth of signals fed to the spectrum analyzer to avoid creating distortion in the analyzer that will mask the system distortion. A suitable preselector filter (internal to instrument) is used in all distortion measurements. COMPOSITE SECOND ORDER DISTORTION (CSO) CSO is a measure of the cumulative effect of non-symmetrical distortions that take place in system amplifiers, fiber optic transport and distribution, and microwave links. Because of the even spacing of cable channels, most of these distortion products will fall in groups.75 MHz & 1.25 MHz above and below the visual carriers of all the channels, Cablesoft Engineering, Inc.

17 with the greatest effects on channels at the lower and upper range of the frequencies in use (whereas CTB peaks mid-range of analog carriers). In IRC systems, CSO beats will fall exactly.75 MHz & 1.25 MHz above and below the carriers; while in HRC systems, they will fall exactly on the luminance carriers and are indistinguishable from CTB (there are very few HRC systems left in operation). While the use of push-pull amplifiers in nearly all CATV coaxial amplifiers since the early 1970 s serves to minimize CSO in the coaxial plant, fiber-optic equipment and some microwave equipment exhibit non-symmetrical distortion characteristics, so it remains an important parameter to track. CSO is defined similarly to CTB, except that the distortion products are measured through a 30 khz filtered centered.75 & 1.25 MHz above the visual carrier, or.75 MHz below the visual carrier. The lowest CSO product (-1.25 MHz from luminance carrier) is generally ignored as it falls between channels on the system. CSO levels when measured using normal headend or system levels and signals will be about 6 db lower than when measured using CW carriers. Properly operating systems should exhibit levels of about - 60 dbc CSO or better with modulated carriers. HUM AND LOW-FREQUENCY DISTORTION Hum is the undesired modulation of the video signal by components of the power line frequency. It generally results from inadequate supply voltage to an amplifier power pack or to a faulty component in the power pack. It can also result from excessive AC current through taps and, occasionally, from AC ground loops caused by faulty system grounding and bonding (including the headend or hub site). Occasionally, a video ground loop or failed component in a processor, modulator, or satellite receiver can create single-channel hum. Infrequently, marginal television stations may have hum modulation or ground loops in their own equipment. As with all FCC technical standards, cable operators are not responsible for correcting problems occurring before reception, off-air or satellite. Hum is defined as the ratio between the peak-to-peak level of the undesired modulation and the sync peak carrier level. The FCC limit is 3%. The nature of hum is that it generally tends to affect all signals carried on a system equally, although in certain instances it can peak in lower or higher spectrum, depending on the creation mechanism involved. 24 HOUR STABILITY TEST The level stability test is actually more than that. Its purpose is to establish: That minimum acceptable signal levels are delivered. That adjacent carriers do not vary by sufficient amounts to cause problems for TV receivers or STB s. That aural subcarrier levels stay within the acceptable FCC range. That the total range of delivered signals is not as great as to cause intermod Cablesoft Engineering, Inc.

18 problems in TV set or STB input circuits. That the levels are stable over temperature and time. Testing is to be done at the specified low-level field test points, which are at the end of a sample 100 foot long drop cable connected to customer tap locations. In order to satisfy the stability requirement, data should be taken in both the hottest (July/August) and coldest (January/February) month of the year and evaluated together. At each location and for each semi-annual test, data must be recorded four times, at five to seven-hour intervals, within one 24 hour period. The desired data are the visual and aural carrier levels of all analog television signals; however QAM carrier average power levels may be required in the future. Data is best taken with a field strength meter. Automated SLMs can be used to gather all of the data at one or multiple locations, and then moved on. Alternately, a technician can drive in a loop, covering all locations in a 24 hour period. If it is not possible to keep the SLM at a relatively constant temperature (such as inside a heated vehicle), it is wise to determine its temperature sensitivity and correct the readings. System stability measurements for this proof were conducted by system personnel and integrated into this report using CSEI grading sheets. SUBSCRIBER ISOLATION Paragraph (a)(9) of the Rules requires operators to maintain at least 18 db of isolation between adjacent subscribers connected to the same tap. While the Commission dropped the requirement that operators actually test that parameter, it does require that they document the specified isolation of taps that are purchased to assure that the parameter is being met. As a practical matter, all taps manufactured by reputable manufacturers since the 1970 s have met this parameter. Nevertheless, operators need to obtain data sheets documenting that level of performance for the makes and models actually in use in each system. Data sheets for the taps used in these systems are on file with the local cable operator. COLOR TESTING (Beginning June 30, 1995) Beginning June 30, 1995 headend processing equipment must also be subjected to three additional measurements; differential gain, differential phase, and chrominance-toluminance group delay (CLDI). While both the Sunrise Telecom AT2500RQv 3 and the HP/Agilent 8591C spectrum analyzers can make these color measurements, the HP8591C firmware routines are deemed more accurate by Cablesoft Engineering, and this instrument is utilized whenever possible for the headend portion of the color testing. When the AT2500RQv analyzer is used for color testing, generally in the field, each of the three tests(differential gain, differential phase, and CLDI) is measured a minimum of 32 times (per NCTA Recommended Practices), with the average value then recorded. These measurements (using a HP8591C in the description) evaluate the following: Cablesoft Engineering, Inc.

19 Differential Gain. Differential gain is the change in amplitude of the chrominance signal (color saturation) as a function of the amplitude of the associated luminance signal. It is measured as the difference in amplitude between the largest and smallest segments of the chrominance signal, divided by the largest and expressed in percent. This measurement is typically taken 10 times, with the average value recorded. Differential Phase Differential phase is the change in phase of the chrominance signal (color hue) as a function of the amplitude of the associated luminance signal. It is measured as the greatest phase difference in degrees between each segment of the chrominance signal and the reference segment - which is the segment at the pedestal level (0 IRE). This measurement is typically taken 10 times, with the average value recorded. Chrominance to Luminance Delay Inequality (CLDI) CLDI is defined as the change in delay time of the chrominance component of the signal relative to the luminance component. CLDI problems are evidenced as a shift or displacement, left or right, in the chrominance (color) information as compared to the associated luminance (blank & white) information. The CLDI measurement is taken 100 times (luminance carrier timing) and 150 times (chrominance carrier timing), with those two average values utilized to calculate the final group delay measurement. All measurements are performed utilizing the NCTA Recommended Practices For Measurements On Cable Television Systems, 3rd Edition. QAM TESTING PER ANSI/SCTE A general summary of ANSI/SCTE specs are as follows. For a complete listing, see the entire document, which can be downloaded from the SCTE.org web site. Transit Delay The delay in milliseconds from the headend to the most distant customer. The spec is 0.8 msec, or approx. 200 miles round trip from headend to the most remote customer and back. A ping measurement (using a computer and appropriate terminal program) is a common method by which to measure this parameter. At present, this measurement is exempt from testing requirements according to FCC Part Carrier-To-Noise Ratio [MER] C/(N+I), in a 6 MHz band, where C/(N+I) includes the presence of all additive impairments in the 6 MHz channel bandwidth including CSO, CTB and other discrete interference. This measurement is commonly made with a QAM analyzer. SCTE specs are 27 db for 64-QAM & 33 db for 256-QAM. Carrier To Any Discrete Interference (including Ingress) Not worse than -53 dbc. This parameter can be difficult to measure directly, unless the QAM carrier is taken off-line for the measurement, but can be inferred from other measurements such as MER and pre and post FEC BER. Cablesoft Engineering, Inc.

20 Group Delay Variation 370 nanoseconds across the 6 MHz QAM channel bandwidth. This requires a QAM analyzer capable of making this measurement., typically by monitoring adaptive equalizer activity within the channel under test. Phase Noise -88 KHz offset relative to the center of the QAM carrier. At present, FCC rules relax this standard to -86 KHz offset; and at present only laboratory grade QAM analyzers can take this measurement accurately. The AT2500RQv analyzer may eventually make accurate measurements of this standard; but at present its accuracy is suspect and measurement results are in degrees, not dbc/hz. Maximum Amplitude Variation Max amplitude variation across the 6 MHz bandwidth; with the spec at 6 db pk-pk. This requires a QAM analyzer capable of making this measurement. Microreflections Bound For Dominant Echo -10 db at 0.5 μsec -15 db at 1.0 μsec -20 db at 1.5 μsec -30 db at 4.5 μsec Specifications are as follows: Microreflections longer than 4.5 microseconds rarely occur in conventional CATV systems, therefore any reflection greater than 4.5 microseconds shall be considered a contributor to C/(N+I) [MER]. This requires a QAM analyzer capable of making this measurement. Burst Noise Not longer than 25 μsec at 10 Hz repetition rate. Burst noise is statistical in nature and a reference level should be defined. Studies on this specification are continuing, with this specification not clearly defined at present. This parameter is very difficult to measure directly, but can be inferred from other measurements such as MER, and especially pre and post FEC BER. Carrier Level at Terminal Input 64-QAM -15 dbmv to +15 dbmv 256-QAM -12 dbmv to +15 dbmv All measurements are performed utilizing the NCTA Recommended Practices For Measurements On Cable Television Systems, 3 rd Edition. Cablesoft Engineering, Inc.

21 Detailed Testing Data

22 Headend Test Data & Response Waveform(s)

23 Headend and System Overall Response Waveforms for the 2013 Cold Months FCC Proof of Performance Tests, Generic Company, USA Overall response at the HE equipment rack combined test point Spectrum capture is from 0 to 900 MHz Red trace is peak hold. Overall response and RF levels are very good.

24 Headend Testing Form - Analog Channels Levels and Frequencies Date: Feb. 27th, 2013 Company: Generic Headend: Primary Location: Anywhere, USA AutoScan? X Stored? X Assigned Measured Measured V-A Chl Visual Freq Visual Freq Visual Offset P/F Aural Freq P/F Visual Ampl Aural Ampl V-A Delta P/F P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P Cablesoft Engineering, Inc.

25 Assigned Measured Measured V-A Chl Visual Freq Visual Freq Visual Offset P/F Aural Freq P/F Visual Ampl Aural Ampl V-A Delta P/F P P P P P P P P P COMMENTS 1. 'Assigned visual frequency' & 'measured visual frequency' are in MHz. 2. 'Visual Offset' is in KHz. 3. 'Measured Aural Frequency' is in MHz. 4. 'Visual' and 'Aural' amplitudes are in dbmv. 5. Visual-to-aural level difference (delta) is in db. 6. FCC specifications for frequency assignments are: Visual Freq Intercarrier Freq Aeronautical +/- 5 KHz +/- 5 KHz Non-Aeronautical +/- 25 KHz +/- 5 KHz 7. FCC specifications for visual-to-aural level differences are: the aural carrier amplitude must be no greater than -10 dbc and no less than -17 dbc relative to the luminance carrier. Cablesoft Engineering, Inc.

26 Headend Testing Form - Analog Channels All Data Except Levels and Frequencies Company: American Broadband Headend: Primary Location: Anywhere, USA Date: February 27th, 2013 STANDARD MEASUREMENTS VIDEO MEASUREMENTS OTHER Chl Type? LFI P/F? CCN P/F? VITS LOC? ICR P/F? VITS LOC? DOM S/N DiffGn P/F? DiffPh P/F? Y/C P/F? Intermod Comments Limit <= 3% >=43 db <= +/- 2 db <=20% <= +/-10 deg <= +/- 170 ns <= -53 dbc 2 OTHER 0.2 P 57.4 P MBR 23O 0.20 P NTC7 23O 3.6 P -2.1 P -13 P <= -55 dbc 3 OA 0.6 P 55.8 P MBR 23O 0.60 P NTC7 23O 2.7 P -1.7 P -21 P <= -55 dbc 4 OA 0.4 P 49.8 P MBR 23O 0.50 P NTC7 23O 4.0 P -1.8 P -39 P <= -55 dbc 5 SAT 0.8 P 52.9 P MBR 17O 0.95 P NTC7 18O 94.0 F -1.0 P 34 P <= -55 dbc Analog Weather Channel still has internal VITS. Analog 6 OA 0.6 P 59.4 P MBR 23O 0.50 P NTC7 23O 3.1 P -2.6 P -12 P <= -55 dbc WeatherStar units always fail Diff Gain, and sometimes 7 OA 0.4 P 58.9 P MBR 23O 0.50 P NTC7 23O 3.2 P -1.7 P -10 P <= -55 dbc fail Diff Phase. 8 SAT 1.0 P 58.3 P MBR 23O 0.40 P NTC7 23O 6.5 P -1.6 P -36 P <= -55 dbc 9 OA 0.6 P 57.7 P MBR 23O 0.50 P NTC7 23O 3.2 P -2.7 P -15 P <= -55 dbc 10 SAT 0.2 P 57.5 P MBR 23O 0.30 P NTC7 23O 2.4 P -2.2 P 20 P <= -55 dbc 11 OA 0.6 P 58.1 P MBR 23O 0.60 P NTC7 23O 1.8 P -2.1 P 3 P <= -55 dbc 12 OA 0.6 P 58.7 P MBR 23O 0.60 P NTC7 23O 3.2 P -3.6 P -2 P <= -55 dbc 13 SAT 0.4 P 58.1 P MBR 23O 0.25 P NTC7 23O 3.0 P -1.5 P -2 P <= -55 dbc 14 SAT 0.8 P 56.9 P MBR 23O 0.50 P NTC7 23O 1.6 P -1.9 P -45 P <= -55 dbc 15 SAT 0.6 P 55.9 P MBR 23O 0.25 P NTC7 23O 5.9 P -0.8 P 34 P <= -55 dbc 16 SAT 0.6 P 56.1 P MBR 23O 1.20 P NTC7 23O 1.9 P -1.3 P -43 P <= -55 dbc 17 SAT 0.2 P 57.5 P MBR 23O 0.60 P NTC7 23O 2.0 P -0.7 P -20 P <= -55 dbc 18 SAT 0.2 P 57.4 P MBR 23O 0.20 P NTC7 23O 3.2 P -3.4 P 7 P <= -55 dbc 19 SAT 0.2 P 57.3 P MBR 17O 0.20 P FCC 18O 5.0 P 4.0 P 26 P <= -55 dbc 20 OPEN 21 SAT 0.4 P 58.1 P MBR 17O 0.30 P FCC 18O 4.0 P 4.0 P 0 P <= -55 dbc 22 SAT 0.6 P 56.3 P MBR 17O 0.30 P FCC 18O 5.0 P 4.0 P 0 P <= -55 dbc 23 SAT 0.4 P 56.9 P MBR 23O 0.10 P FCC 23O 1.9 P -2.0 P 45 P <= -55 dbc 24 SAT 0.2 P 55.9 P MBR 23O 0.60 P FCC 23O 2.9 P -2.6 P -7 P <= -55 dbc 25 SAT 0.2 P 57.6 P MBR 23O 0.50 P FCC 23O 3.5 P -4.5 P -1 P <= -55 dbc 26 SAT 0.2 P 57.0 P MBR 17O 0.10 P FCC 18O 4.0 P 4.0 P 0 P <= -55 dbc 27 SAT 0.4 P 58.0 P MBR 17O 0.15 P FCC 18O 4.0 P 3.0 P 0 P <= -55 dbc 28 SAT 0.2 P 56.7 P MBR 17O 0.10 P FCC 18O 6.0 P 3.0 P 0 P <= -55 dbc 29 SAT 0.6 P 56.5 P MBR 23O 0.60 P FCC 23O 3.1 P -3.9 P 32 P <= -55 dbc 30 SAT 0.6 P 56.6 P MBR 17O 0.25 P FCC 18O 5.0 P 3.0 P -143 P <= -55 dbc 31 SAT 0.2 P 58.3 P MBR 17O 0.20 P FCC 18O 4.0 P 3.0 P 0 P <= -55 dbc 32 SAT 0.2 P 57.2 P MBR 17O 0.10 P FCC 18O 6.0 P 3.0 P 55 P <= -55 dbc 33 SAT 0.2 P 54.9 P MBR 17O 0.10 P FCC 18O 5.0 P 4.0 P -154 P <= -55 dbc 34 SAT 0.4 P 54.5 P MBR 17O 0.15 P FCC 18O 5.0 P 3.0 P 0 P <= -55 dbc 35 SAT 0.4 P 54.7 P MBR 17O 0.05 P FCC 18O 4.0 P 3.0 P 0 P <= -55 dbc 36 SAT 0.4 P 56.5 P MBR 17O 0.20 P FCC 18O 5.0 P 3.0 P 0 P <= -55 dbc 37 SAT 0.2 P 56.6 P MBR 17O 0.10 P FCC 18O 5.0 P 5.0 P 0 P <= -55 dbc 38 SAT 0.2 P 57.1 P MBR 17O 0.15 P FCC 18O 5.0 P 3.0 P 0 P <= -55 dbc 39 OPEN 40 SAT 0.4 P 57.0 P MBR 17O 0.15 P FCC 18O 5.0 P 4.0 P 0 P <= -55 dbc 41 SAT 0.2 P 58.2 P MBR 17O 0.20 P FCC 18O 5.0 P 3.0 P 0 P <= -55 dbc 42 SAT 0.8 P 59.4 P MBR 23O 0.20 P NTC7 23O 3.5 P -3.1 P -25 P <= -55 dbc 43 SAT 0.2 P 59.2 P MBR 17O 0.15 P FCC 18O 4.0 P 4.0 P 0 P <= -55 dbc 44 SAT 0.2 P 59.4 P MBR 17O 0.20 P FCC 18O 5.0 P 3.0 P -147 P <= -55 dbc 45 SAT 0.2 P 57.4 P MBR 17O 0.10 P FCC 18O 5.0 P 3.0 P 0 P <= -55 dbc 46 SAT 0.2 P 58.2 P MBR 17O 0.10 P FCC 18O 4.0 P 3.0 P 0 P <= -55 dbc 47 SAT 0.2 P 59.4 P MBR 17O 0.15 P FCC 18O 5.0 P 3.0 P 0 P <= -55 dbc 48 SAT 0.2 P 58.4 P MBR 17O 0.25 P FCC 18O 6.0 P 3.0 P 0 P <= -55 dbc 49 SAT 0.2 P 58.6 P MBR 17O 0.15 P FCC 18O 4.0 P 3.0 P 0 P <= -55 dbc 50 SAT 0.4 P 58.8 P MBR 17O 0.20 P FCC 18O 4.0 P 4.0 P 0 P <= -55 dbc 51 SAT 0.2 P 59.4 P MBR 17O 0.05 P FCC 18O 5.0 P 3.0 P -151 P <= -55 dbc 52 SAT 0.2 P 56.8 P MBR 17O 0.20 P FCC 18O 5.0 P 4.0 P 35 P <= -55 dbc 53 SAT 0.4 P 57.0 P MBR 17O 0.20 P FCC 18O 5.0 P 3.0 P 0 P <= -55 dbc 54 OPEN 55 OPEN 56 QAM 57 OPEN 58 QAM 59 QAM Cablesoft Engineering, Inc.

27 STANDARD MEASUREMENTS VIDEO MEASUREMENTS OTHER Chl Type? LFI P/F? CCN P/F? VITS LOC? ICR P/F? VITS LOC? DOM S/N DiffGn P/F? DiffPh P/F? Y/C P/F? Intermod Comments Limit <= 3% >=43 db <= +/- 2 db <=20% <= +/-10 deg <= +/- 170 ns <= -53 dbc 60 QAM 61 SAT 1.8 P 57.1 P MBR 23O 0.60 P NTC7 23O 2.3 P -2.9 P 18 P <= -55 dbc 62 QAM 63 QAM 64 QAM 65 QAM 66 QAM 67 QAM 68 QAM 69 QAM 70 QAM 71 QAM 72 QAM 73 QAM 74 QAM 75 QAM 76 QAM 77 QAM 78 QAM 95 OA In the XXX system only. 96 OPEN 97 OTHER 0.2 P 56.9 P <= -55 dbc 98 OPEN 99 OTHER 0.6 P 55.5 P <= -55 dbc 117 OTHER 0.4 P 57.7 P <= -55 dbc 135 OTHER 0.6 P 62.9 P <= -55 dbc COMMENTS 1. Valid channel types are OA (off-air), SAT (satellite), OTHER (local, pilot, etc.) 2. ICR readings are plus or minus; therefore +/- 2.0 is the largest passing value (FCC limit is 4.0 db P/V). 3. CCN (carrier-to-composite noise) measurements are an average of 25 readings using a 'gated' measurement of a quiet video line in the vertical interval. 4. Other standard measurements' limits are LFI, 3%; CCN (carrier-to-composite noise), 43 db. 5. Video Measurements tests are only required once every three years. All three video measurements are taken a minimum of 32 times and averaged. See testing description. 6. Video measurement limits are: DOM, 87.5%; S/N, N/A; Differential Gain, 20%; Differential Phase, +/- 10 deg; Y/C, +/- 170 nsecs. 7. Measurement units are as follows: LFI, %; CCN, db; ICR, db; unweighted S/N, db; differential gain, %; differential phase, degrees; Y/C, nanoseconds; discrete intermod, dbc. 8. Intermodulation levels noted are typically for discrete levels. The general FCC limit for any intermodulation measurement is -53 dbc, discrete or composite. Cablesoft Engineering, Inc.

28 Headend Auto Testing Form - Digital Channels Company: Generic Date: Feb. 27th, 2013 Headend: Primary Location: Anytown, USA MHz AvgPwrLvl Frq Rspns Group Phase Adaptive Equalizer Tap Stress QAM Chl Number Freq MHz Freq Error (dbmv) MER EVM ENM PreBER PostBER SES ICR Delay HUM Noise <.5 usec <1.0 usec <1.5 usec <4.5 usec Type Comments Limit N/A +/- 5 KHz -12 to /33 <= 1.5% >= 6dB <= +/-3dB <=370 ns <=3% <= 2 deg -10 db -15 db -20 db -30 db SCTE Limits per SCTE Document Source N/A CSEI SCTE SCTE CSEI CSEI CSEI CSEI CSEI SCTE SCTE CSEI CSEI SCTE SCTE SCTE SCTE CSEI limits are suggested where SCTE limits are absent QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM Cablesoft Engineering, Inc.

29 MHz AvgPwrLvl Frq Rspns Group Phase Adaptive Equalizer Tap Stress QAM Chl Number Freq MHz Freq Error (dbmv) MER EVM ENM PreBER PostBER SES ICR Delay HUM Noise <.5 usec <1.0 usec <1.5 usec <4.5 usec Type Comments Limit N/A +/- 5 KHz -12 to /33 <= 1.5% >= 6dB <= +/-3dB <=370 ns <=3% <= 2 deg -10 db -15 db -20 db -30 db SCTE Limits per SCTE Document Source N/A CSEI SCTE SCTE CSEI CSEI CSEI CSEI CSEI SCTE SCTE CSEI CSEI SCTE SCTE SCTE SCTE CSEI limits are suggested where SCTE limits are absent COMMENTS 1. Valid channel types are QPSK, 16-QAM, 64-QAM, 256-QAM, OTHER (8-VSB, OFDM, COFDM, etc.) 2. Measurements are: Frequency Error (carrier offset) in KHz, Average Pwr Level in dbmv, Modulation Error Ratio in db, Error Vector Magnitude in %, Estimted Noise Margin in db, Pre and Post FEC Bit Error Rate, Severely Error Seconds, Frequency Response in db, Group Delay in nanoseconds, LFI/HUM in %, Phase Noise in degrees (6), and Adaptive Equalizer Stress in db (separated into time displacement groups as per SCTE ). 3. Pass/fail limits for ANSI/SCTE/FCC column are per FCC Part & ANSI/SCTE documents. CSEI limits are suggested by Cablesoft Engineering, Inc. 4. Pass values: TEST CSEI Test Limit ANSI/SCTE/FCC Limit (SCTE ) Frequency Error +/- 5 KHz None Avg Pwr Lvl - 64 QAM >= -10 dbmv >= -15 dbmv to +15 dbmv Avg Pwr Lvl QAM >= -5 dbmv >= -12 dbmv to +15 dbmv MER - 64 QAM >= 30 db >= 27 db MER QAM >= 32 db >= 33 db EVM <= 1.5 % No spec ENM >= 6 db No spec PreBER 1 X 10-5 No spec PostBER 1 X 10-8 No spec Severely Errored Seconds Zero No spec FrqResponse <= 3 db peak/valley (+/- 1.5 db) <= 6 db peak/valley (+/- 3 db) Group Delay <= 150 ns/6 MHz <= 370 ns/6 MHz LFI/HUM <= 3% No spec Phase Noise/Hz <= 2 degrees < -86 db/hz (see comments 5, 6) EQ Stress See SCTE specs Reflec > - 10 <=.5 microsec - 15 <= 1 microsec 5. Present ANSI/SCTE spec is -88 db/hz, but is relaxed by the FCC to -86 db/hz <= 1.5 microsec 6. There are no 'field' QAM analyzers at present that will measure the phase noise spec to sufficient accuracy in db/hz. The Sunrise - 30 <= 4.5 microsec Telecom AT2500RQv3/4 analyzer now offers an accurate measurement, but results are in 'degrees' - with no direct correlation back to the SCTE parameter of db/hz. For now, an arbitrary limit of 2 degrees is chosen for headend and field measurements. 7. Finally, SCTE states a 'transit delay limit' of <=.8 seconds to the most distant subscriber, hower measurement of this parameter is waivered at present. Cablesoft Engineering, Inc.

30 TP#1 Test Data & Response Waveform(s)

31 Field Test Point #1. Spectrum Capture is from 0 to 900 MHz. Overall response is good - note that the CH135 pilot is greatly reduced in amplitude since this is a 750 MHz system.

32 Field Testing Form - Analog Channels All Data Except Levels and Frequencies Date: February 28th, 2013 Company: Generic AutoScan? X Headend: Primary Stored? X # Subscribers? 2000 HighestAnalogFreq? TP Location #1 Cascade: Unknown # Test Points Req'd 6 #Channels Req'd 8 Temp: 26 deg F. STANDARD MEASUREMENTS VIDEO MEASUREMENTS INTERMOD Chl Type? LFI P/F? CCN P/F? VITS LOC? ICR P/F? VITS LOC? S/N DiffGn P/F? DiffPh P/F? Y/C P/F? CSO P/F? CTB P/F? Comments <= 3% >=43 db <= +/- 2 db <=20% <= +/-10 deg <= +/- 170 ns <= -53 dbc <= -53 dbc 4 OA 1.6 P 44.9 P P P 97 OTHER 0.8 P 36.8 F F P LO channel 97 has poor quality video; fails CCN & 19 SAT 1.0 P 47.9 P MBR 17O 0.30 P FCC 18O 5.0 P 4.0 P 0 P P P in-channel noise prevents accurate CSO measurement. 8 SAT 1.8 P 48.3 P P 26 SAT 1.0 P 49.3 P MBR 17O 0.30 P FCC 18O 6.0 P 5.0 P 0 P P 32 SAT 1.2 P 48.5 P MBR 17O 0.30 P FCC 18O 4.0 P 4.0 P 0 P P 40 SAT 1.0 P 49.3 P MBR 17O 0.20 P FCC 18O 5.0 P 4.0 P -149 P P P 53 SAT 0.8 P 49.2 P MBR 17O 0.15 P FCC 18O 4.0 P 4.0 P 0 P P P 117 OTHER 1.2 P 50.9 P P P Measurements made on unmodulated carrier. Ingress/Egress Measurement Freq Level Comment - Light LTE/4G traffic measured; no sign of leakage from system. The highest carrier (analog or QAM) in the system was measured using a calibrated field strength routine in the Tektronix SA2600 analyzer & calibrated EMI antenna. See comment #14 below. COMMENTS 1. Valid channel types are OA (off-air), SAT (satellite), OTHER (local, pilot, etc.) 2. ICR readings are plus or minus; therefore +/- 2.0 is the largest passing value (FCC limit is 4.0 db P/V). 3. CCN (carrier-to-composite noise) measurements are an average of 25 readings using a 'gated' measurement of a quiet video line in the vertical interval. 4. Other standard measurements' limits are LFI, 3%; CCN (carrier-to-composite noise), 43 db. 5. Video Measurements tests are only required once every three years. All three video measurements are taken a minimum of 32 times and averaged. See testing description. 6. Video measurement limits are: DOM, 87.5%; S/N, N/A; Differential Gain, 20%; Differential Phase, +/- 10 deg; Y/C, +/- 170 nsecs. 7. Measurement units are as follows: LFI, %; CCN, db; ICR, db; unweighted S/N, db; differential gain, %; differential phase, degrees; Y/C, nanoseconds; discrete intermod, dbc. 8. Intermodulation levels noted are for composite levels. The general FCC limit for any intermodulation measurement is -53 dbc, discrete or composite. 9. The number of test point locations required is 6 within each 'mechanically continuous set of cables' plus 1 additional testpoint for every additional 12,500 subscribers or fraction thereof. 10. The number of test channels required is: 7 chls plus 1 additional chl for each 100 MHz of analog bandwidth used above 400 MHz. 11. Gated testing techniques are utilized for CSO & CTB measurements; hence carrier removal from the system is not necessary during testing. 12. CSO readings are an average of 25 measurements at each of three CSO beat offsets: -.75 MHz, +.75 MHz, and MHz from the luminance carrier. The worst case average reading is recorded. 13. CTB readings are an average of 25 measurements at either 0 or +/-6 MHz offset from the luminance carrier. 14. The SA2600/EP1 in 'field strength' mode automatically calculates field strength at the measured channel, with gain/loss tables employed for the test antenna and cable loss. For non-aeronautical frequencies, the current FCC limit is 150 microvolts/meter at 3 meters (this is a distance adjusted value from present FCC limits). See the test equipment list for possible antennas that may be used depending on the frequency and application. Cablesoft Engineering, Inc.

33 Field Auto Testing Form - Digital Channels Company: Generic Date: February 28th, 2013 Headend: Primary Location: TP#1 MHz AvgPwrLvl Frq Rspns Group Phase Adaptive Equalizer Tap Stress QAM Chl Number Freq MHz Freq Error (dbmv) MER EVM ENM PreBER PostBER SES ICR Delay HUM Noise <.5 usec <1.0 usec <1.5 usec <4.5 usec Type Comments Limit N/A +/- 5 KHz -12 to /33 <= 1.5% >= 6dB <= +/-3dB <=370 ns <=3% <= 2 deg -10 db -15 db -20 db -30 db SCTE Limits per SCTE Document Source N/A CSEI SCTE SCTE CSEI CSEI CSEI CSEI CSEI SCTE SCTE CSEI CSEI SCTE SCTE SCTE SCTE CSEI limits are suggested where SCTE limits are absent QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM COMMENTS 1. Valid channel types are QPSK, 16-QAM, 64-QAM, 256-QAM, OTHER (8-VSB, OFDM, COFDM, etc.) 2. Measurements are: Frequency Error (carrier offset) in KHz, Average Pwr Level in dbmv, Modulation Error Ratio in db, Error Vector Magnitude in %, Estimted Noise Margin in db, Pre and Post FEC Bit Error Rate, Severely Error Seconds, Frequency Response in db, Group Delay in nanoseconds, LFI/HUM in %, Phase Noise in degrees (6), and Adaptive Equalizer Stress in db (separated into time displacement groups as per SCTE ). 3. Pass/fail limits for ANSI/SCTE/FCC column are per FCC Part & ANSI/SCTE documents. CSEI limits are suggested by Cablesoft Engineering, Inc. 4. Pass values: TEST CSEI Test Limit ANSI/SCTE/FCC Limit (SCTE ) Frequency Error +/- 5 KHz None Avg Pwr Lvl - 64 QAM >= -10 dbmv >= -15 dbmv to +15 dbmv Avg Pwr Lvl QAM >= -5 dbmv >= -12 dbmv to +15 dbmv MER - 64 QAM >= 30 db >= 27 db MER QAM >= 32 db >= 33 db EVM <= 1.5 % No spec ENM >= 6 db No spec PreBER 1 X 10-5 No spec PostBER 1 X 10-8 No spec Severely Errored Seconds Zero No spec FrqResponse <= 3 db peak/valley (+/- 1.5 db) <= 6 db peak/valley (+/- 3 db) Group Delay <= 150 ns/6 MHz <= 370 ns/6 MHz LFI/HUM <= 3% No spec Phase Noise/Hz <= 2 degrees < -86 db/hz (see comments 5, 6) EQ Stress See SCTE specs Reflec > - 10 <=.5 microsec - 15 <= 1 microsec 5. Present ANSI/SCTE spec is -88 db/hz, but is relaxed by the FCC to -86 db/hz <= 1.5 microsec 6. There are no 'field' QAM analyzers at present that will measure the phase noise spec to sufficient accuracy in db/hz. The Sunrise - 30 <= 4.5 microsec Telecom AT2500RQv3/4 analyzer now offers an accurate measurement, but results are in 'degrees' - with no direct correlation back to the SCTE parameter of db/hz. For now, an arbitrary limit of 2 degrees is chosen for headend and field measurements. 7. Finally, SCTE states a 'transit delay limit' of <=.8 seconds to the most distant subscriber, hower measurement of this parameter is waivered at present. Cablesoft Engineering, Inc.

34 24 HOUR SYSTEM STABILITY TEST PLANT TESTS - LOG SHEET REGION: SYSTEM: HEADEND: Primary Node: YR: 2013 Channel Configuration(STD,HRC,IRC): STD LOCATION: TP#1 HIGHEST CH#USED: 61 COLD MO TEST DATE: March 4th & 5th, HOT MONTH TEST DATE: 24 6 MO TIME 12:12 PM 6:12 PM 12:12 AM 6:12 AM HR AUR HR AUR TOT CH T1 T2 T3 T4 VAR SEP T1 T2 T3 T4 VAR SEP VAR. V A V A V A V A V A V A V A V A PASS PASS PASS NA PASS PASS PASS PASS PASS FAIL FAIL PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS Cablesoft Enginering, Inc.

35 PASS MIN MAX VAR ADJ TEST SUMMARY PARAMETER DATA SPECIFICATION RESULT COLD TEST VARIATION, ANY ONE CHANNEL, 24 HRS 4.2 < 8 db PASS ADJACENT CHANNEL VARIATION, ANY ONE TEST 4.7 <= 3 db FAIL MINIMUM DELIVERED SIGNAL, ALL TESTS 6.5 >= 3 dbmv PASS AURAL SEPARATION TEST FAIL 10<=SEP<=17 db VARIATION OVER ENTIRE BAND, ANY ONE TEST 12.4 < 12 db FAIL HOT TEST VARIATION, ANY ONE CHANNEL, 24 HRS 0 < 8 db ADJACENT CHANNEL VARIATION, ANY ONE TEST 0 <= 3 db MINIMUM DELIVERED SIGNAL, ALL TESTS 0 >= 3 dbmv AURAL SEPARATION TEST PASS 10<=SEP<=17 db VARIATION OVER ENTIRE BAND, ANY ONE TEST 0 < 12 db 6 MONTH COMPARISON VARIATION ANY ONE CHANNEL, 6 MONTHS 0 < 8 db TEST TECHNICIAN: Local REGION: 0 SYSTEM: 0 HEADEND: 0 HUB: 0 NOTE: ALL LEVELS IN dbmv, ALL VARIATIONS IN db LOCATION: 0 Cablesoft Enginering, Inc.

36 TP#2 Test Data & Response Waveform(s)

37 Field Test Point #2. Spectrum Capture is from 0 to 900 MHz. Overall response is good.

38 Field Testing Form - Analog Channels All Data Except Levels and Frequencies Date: February 28th, 2013 Company: Generic AutoScan? X Headend: Primary Stored? X # Subscribers? 2000 HighestAnalogFreq? TP Location #2 Cascade: Unknown # Test Points Req'd 6 #Channels Req'd 8 Temp: 25 deg F. STANDARD MEASUREMENTS VIDEO MEASUREMENTS INTERMOD Chl Type? LFI P/F? CCN P/F? VITS LOC? ICR P/F? VITS LOC? S/N DiffGn P/F? DiffPh P/F? Y/C P/F? CSO P/F? CTB P/F? Comments <= 3% >=43 db <= +/- 2 db <=20% <= +/-10 deg <= +/- 170 ns <= -53 dbc <= -53 dbc 4 OA 1.4 P 46.8 P P P 97 OTHER 1.4 P 48.8 P P P CH97 now OK with different video source. 19 SAT 1.4 P 48.4 P MBR 17O 0.30 P FCC 18O 4.0 P 3.0 P 0 P P P 8 SAT 1.4 P 49.3 P P 26 SAT 1.4 P 47.4 P MBR 17O 0.35 P FCC 18O 5.0 P 4.0 P 0 P P 32 SAT 1.4 P 48.2 P MBR 17O 0.50 P FCC 18O 4.0 P 3.0 P 0 P P 40 SAT 1.8 P 48.6 P MBR 17O 0.40 P FCC 18O 4.0 P 5.0 P 40 P P P 53 SAT 1.8 P 47.5 P MBR 17O 0.25 P FCC 18O 6.0 P 4.0 P 37 P P P 117 OTHER 1.6 P 49.1 P P P Measurements made on unmodulated carrier. ^^ LFI elevated due to grounding/bonding problem at the XXX Hub site. Ingress/Egress Measurement Freq Level Comment - Light LTE/4G traffic measured; no sign of leakage from system. The highest carrier (analog or QAM) in the system was measured using a calibrated field strength routine in the Tektronix SA2600 analyzer & calibrated EMI antenna. See comment #14 below. COMMENTS 1. Valid channel types are OA (off-air), SAT (satellite), OTHER (local, pilot, etc.) 2. ICR readings are plus or minus; therefore +/- 2.0 is the largest passing value (FCC limit is 4.0 db P/V). 3. CCN (carrier-to-composite noise) measurements are an average of 25 readings using a 'gated' measurement of a quiet video line in the vertical interval. 4. Other standard measurements' limits are LFI, 3%; CCN (carrier-to-composite noise), 43 db. 5. Video Measurements tests are only required once every three years. All three video measurements are taken a minimum of 32 times and averaged. See testing description. 6. Video measurement limits are: DOM, 87.5%; S/N, N/A; Differential Gain, 20%; Differential Phase, +/- 10 deg; Y/C, +/- 170 nsecs. 7. Measurement units are as follows: LFI, %; CCN, db; ICR, db; unweighted S/N, db; differential gain, %; differential phase, degrees; Y/C, nanoseconds; discrete intermod, dbc. 8. Intermodulation levels noted are for composite levels. The general FCC limit for any intermodulation measurement is -53 dbc, discrete or composite. 9. The number of test point locations required is 6 within each 'mechanically continuous set of cables' plus 1 additional testpoint for every additional 12,500 subscribers or fraction thereof. 10. The number of test channels required is: 7 chls plus 1 additional chl for each 100 MHz of analog bandwidth used above 400 MHz. 11. Gated testing techniques are utilized for CSO & CTB measurements; hence carrier removal from the system is not necessary during testing. 12. CSO readings are an average of 25 measurements at each of three CSO beat offsets: -.75 MHz, +.75 MHz, and MHz from the luminance carrier. The worst case average reading is recorded. 13. CTB readings are an average of 25 measurements at either 0 or +/-6 MHz offset from the luminance carrier. 14. The SA2600/EP1 in 'field strength' mode automatically calculates field strength at the measured channel, with gain/loss tables employed for the test antenna and cable loss. For non-aeronautical frequencies, the current FCC limit is 150 microvolts/meter at 3 meters (this is a distance adjusted value from present FCC limits). See the test equipment list for possible antennas that may be used depending on the frequency and application. Cablesoft Engineering, Inc.

39 Field Auto Testing Form - Digital Channels Company: Generic Date: February 28th, 2013 Headend: Primary Location: TP#2 MHz AvgPwrLvl Frq Rspns Group Phase Adaptive Equalizer Tap Stress QAM Chl Number Freq MHz Freq Error (dbmv) MER EVM ENM PreBER PostBER SES ICR Delay HUM Noise <.5 usec <1.0 usec <1.5 usec <4.5 usec Type Comments Limit N/A +/- 5 KHz -12 to /33 <= 1.5% >= 6dB <= +/-3dB <=370 ns <=3% <= 2 deg -10 db -15 db -20 db -30 db SCTE Limits per SCTE Document Source N/A CSEI SCTE SCTE CSEI CSEI CSEI CSEI CSEI SCTE SCTE CSEI CSEI SCTE SCTE SCTE SCTE CSEI limits are suggested where SCTE limits are absent QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM 256-QAM COMMENTS 1. Valid channel types are QPSK, 16-QAM, 64-QAM, 256-QAM, OTHER (8-VSB, OFDM, COFDM, etc.) 2. Measurements are: Frequency Error (carrier offset) in KHz, Average Pwr Level in dbmv, Modulation Error Ratio in db, Error Vector Magnitude in %, Estimted Noise Margin in db, Pre and Post FEC Bit Error Rate, Severely Error Seconds, Frequency Response in db, Group Delay in nanoseconds, LFI/HUM in %, Phase Noise in degrees (6), and Adaptive Equalizer Stress in db (separated into time displacement groups as per SCTE ). 3. Pass/fail limits for ANSI/SCTE/FCC column are per FCC Part & ANSI/SCTE documents. CSEI limits are suggested by Cablesoft Engineering, Inc. 4. Pass values: TEST CSEI Test Limit ANSI/SCTE/FCC Limit (SCTE ) Frequency Error +/- 5 KHz None Avg Pwr Lvl - 64 QAM >= -10 dbmv >= -15 dbmv to +15 dbmv Avg Pwr Lvl QAM >= -5 dbmv >= -12 dbmv to +15 dbmv MER - 64 QAM >= 30 db >= 27 db MER QAM >= 32 db >= 33 db EVM <= 1.5 % No spec ENM >= 6 db No spec PreBER 1 X 10-5 No spec PostBER 1 X 10-8 No spec Severely Errored Seconds Zero No spec FrqResponse <= 3 db peak/valley (+/- 1.5 db) <= 6 db peak/valley (+/- 3 db) Group Delay <= 150 ns/6 MHz <= 370 ns/6 MHz LFI/HUM <= 3% No spec Phase Noise/Hz <= 2 degrees < -86 db/hz (see comments 5, 6) EQ Stress See SCTE specs Reflec > - 10 <=.5 microsec - 15 <= 1 microsec 5. Present ANSI/SCTE spec is -88 db/hz, but is relaxed by the FCC to -86 db/hz <= 1.5 microsec 6. There are no 'field' QAM analyzers at present that will measure the phase noise spec to sufficient accuracy in db/hz. The Sunrise - 30 <= 4.5 microsec Telecom AT2500RQv3/4 analyzer now offers an accurate measurement, but results are in 'degrees' - with no direct correlation back to the SCTE parameter of db/hz. For now, an arbitrary limit of 2 degrees is chosen for headend and field measurements. 7. Finally, SCTE states a 'transit delay limit' of <=.8 seconds to the most distant subscriber, hower measurement of this parameter is waivered at present. Cablesoft Engineering, Inc.

40 24 HOUR SYSTEM STABILITY TEST PLANT TESTS - LOG SHEET REGION: SYSTEM: HEADEND: Primary Node: YR: 2013 Channel Configuration(STD,HRC,IRC): STD LOCATION: TP#2 HIGHEST CH#USED: 61 COLD MO TEST DATE: March 4th & 5th, HOT MONTH TEST DATE: 24 6 MO TIME 11:35 AM 5:34 PM 11:24 PM 5:34 AM HR AUR HR AUR TOT CH T1 T2 T3 T4 VAR SEP T1 T2 T3 T4 VAR SEP VAR. V A V A V A V A V A V A V A V A PASS PASS PASS NA PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS Cablesoft Enginering, Inc.

41 PASS MIN MAX VAR ADJ TEST SUMMARY PARAMETER DATA SPECIFICATION RESULT COLD TEST VARIATION, ANY ONE CHANNEL, 24 HRS 1.6 < 8 db PASS ADJACENT CHANNEL VARIATION, ANY ONE TEST 1.6 <= 3 db PASS MINIMUM DELIVERED SIGNAL, ALL TESTS 11.3 >= 3 dbmv PASS AURAL SEPARATION TEST PASS 10<=SEP<=17 db VARIATION OVER ENTIRE BAND, ANY ONE TEST 6.8 < 12 db PASS HOT TEST VARIATION, ANY ONE CHANNEL, 24 HRS 0 < 8 db ADJACENT CHANNEL VARIATION, ANY ONE TEST 0 <= 3 db MINIMUM DELIVERED SIGNAL, ALL TESTS 0 >= 3 dbmv AURAL SEPARATION TEST PASS 10<=SEP<=17 db VARIATION OVER ENTIRE BAND, ANY ONE TEST 0 < 12 db 6 MONTH COMPARISON VARIATION ANY ONE CHANNEL, 6 MONTHS 0 < 8 db TEST TECHNICIAN: Local REGION: 0 SYSTEM: 0 HEADEND: 0 HUB: 0 NOTE: ALL LEVELS IN dbmv, ALL VARIATIONS IN db LOCATION: 0 Cablesoft Enginering, Inc.

42 TP#3 Test Data & Response Waveform(s)

43 Field Test Point #3. Spectrum Capture is from 0 to 900 MHz. Overall response is good; however note the noise floor pooch near the highest QAM carriers for undetermined reasons.

44 Field Testing Form - Analog Channels All Data Except Levels and Frequencies Date: February 28th, 2013 Company: Generic AutoScan? X Headend: Primary Stored? X # Subscribers? 2000 HighestAnalogFreq? TP Location #3 Cascade: Unknown # Test Points Req'd 6 #Channels Req'd 8 Temp: 27 deg F. STANDARD MEASUREMENTS VIDEO MEASUREMENTS INTERMOD Chl Type? LFI P/F? CCN P/F? VITS LOC? ICR P/F? VITS LOC? S/N DiffGn P/F? DiffPh P/F? Y/C P/F? CSO P/F? CTB P/F? Comments <= 3% >=43 db <= +/- 2 db <=20% <= +/-10 deg <= +/- 170 ns <= -53 dbc <= -53 dbc 4 OA 2.5 P 45.5 P P P 97 OTHER 2.3 P 48.5 P P P CH97 now OK with different video source. 19 SAT 2.3 P 48.9 P MBR 17O 0.25 P FCC 18O 4.0 P 4.0 P 0 P P P 8 SAT 2.5 P 48.3 P P 26 SAT 2.5 P 47.5 P MBR 17O 0.30 P FCC 18O 5.0 P 4.0 P 0 P P 32 SAT 2.5 P 48.0 P MBR 17O 0.25 P FCC 18O 5.0 P 3.0 P 0 P P 40 SAT 2.5 P 48.6 P MBR 17O 0.30 P FCC 18O 5.0 P 4.0 P 0 P P P 53 SAT 2.7 P 47.3 P MBR 17O 0.45 P FCC 18O 5.0 P 4.0 P -141 P P P CCN falls at higher freqs; see overall response waveform. 117 OTHER 2.7 P 47.3 P P P Measurements made on unmodulated carrier. ^^ LFI elevated due to grounding/bonding problem at the XXX Hub site. 95 OA 1.2 P 44.4 P CH95 is in xx system only P P CH95 freqs: / = OK Ingress/Egress Freq Level Comment - Light LTE/4G traffic measured; no sign of leakage from system. Measurement The highest carrier (analog or QAM) in the system was measured using a calibrated field strength routine in the Tektronix SA2600 analyzer & calibrated EMI antenna. See comment #14 below. COMMENTS 1. Valid channel types are OA (off-air), SAT (satellite), OTHER (local, pilot, etc.) 2. ICR readings are plus or minus; therefore +/- 2.0 is the largest passing value (FCC limit is 4.0 db P/V). 3. CCN (carrier-to-composite noise) measurements are an average of 25 readings using a 'gated' measurement of a quiet video line in the vertical interval. 4. Other standard measurements' limits are LFI, 3%; CCN (carrier-to-composite noise), 43 db. 5. Video Measurements tests are only required once every three years. All three video measurements are taken a minimum of 32 times and averaged. See testing description. 6. Video measurement limits are: DOM, 87.5%; S/N, N/A; Differential Gain, 20%; Differential Phase, +/- 10 deg; Y/C, +/- 170 nsecs. 7. Measurement units are as follows: LFI, %; CCN, db; ICR, db; unweighted S/N, db; differential gain, %; differential phase, degrees; Y/C, nanoseconds; discrete intermod, dbc. 8. Intermodulation levels noted are for composite levels. The general FCC limit for any intermodulation measurement is -53 dbc, discrete or composite. 9. The number of test point locations required is 6 within each 'mechanically continuous set of cables' plus 1 additional testpoint for every additional 12,500 subscribers or fraction thereof. 10. The number of test channels required is: 7 chls plus 1 additional chl for each 100 MHz of analog bandwidth used above 400 MHz. 11. Gated testing techniques are utilized for CSO & CTB measurements; hence carrier removal from the system is not necessary during testing. 12. CSO readings are an average of 25 measurements at each of three CSO beat offsets: -.75 MHz, +.75 MHz, and MHz from the luminance carrier. The worst case average reading is recorded. 13. CTB readings are an average of 25 measurements at either 0 or +/-6 MHz offset from the luminance carrier. 14. The SA2600/EP1 in 'field strength' mode automatically calculates field strength at the measured channel, with gain/loss tables employed for the test antenna and cable loss. For non-aeronautical frequencies, the current FCC limit is 150 microvolts/meter at 3 meters (this is a distance adjusted value from present FCC limits). See the test equipment list for possible antennas that may be used depending on the frequency and application. Cablesoft Engineering, Inc.

45 Field Auto Testing Form - Digital Channels Company: Generic Date: February 28th, 2013 Headend: Primary Location: TP#3 MHz AvgPwrLvl Frq Rspns Group Phase Adaptive Equalizer Tap Stress QAM Chl Number Freq MHz Freq Error (dbmv) MER EVM ENM PreBER PostBER SES ICR Delay HUM Noise <.5 usec <1.0 usec <1.5 usec <4.5 usec Type Comments Limit N/A +/- 5 KHz -12 to /33 <= 1.5% >= 6dB <= +/-3dB <=370 ns <=3% <= 2 deg -10 db -15 db -20 db -30 db SCTE Limits per SCTE Document Source N/A CSEI SCTE SCTE CSEI CSEI CSEI CSEI CSEI SCTE SCTE CSEI CSEI SCTE SCTE SCTE SCTE CSEI limits are suggested where SCTE limits are absent QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM QAM 256-QAM COMMENTS 1. Valid channel types are QPSK, 16-QAM, 64-QAM, 256-QAM, OTHER (8-VSB, OFDM, COFDM, etc.) 2. Measurements are: Frequency Error (carrier offset) in KHz, Average Pwr Level in dbmv, Modulation Error Ratio in db, Error Vector Magnitude in %, Estimted Noise Margin in db, Pre and Post FEC Bit Error Rate, Severely Error Seconds, Frequency Response in db, Group Delay in nanoseconds, LFI/HUM in %, Phase Noise in degrees (6), and Adaptive Equalizer Stress in db (separated into time displacement groups as per SCTE ). 3. Pass/fail limits for ANSI/SCTE/FCC column are per FCC Part & ANSI/SCTE documents. CSEI limits are suggested by Cablesoft Engineering, Inc. 4. Pass values: TEST CSEI Test Limit ANSI/SCTE/FCC Limit (SCTE ) Frequency Error +/- 5 KHz None Avg Pwr Lvl - 64 QAM >= -10 dbmv >= -15 dbmv to +15 dbmv Avg Pwr Lvl QAM >= -5 dbmv >= -12 dbmv to +15 dbmv MER - 64 QAM >= 30 db >= 27 db MER QAM >= 32 db >= 33 db EVM <= 1.5 % No spec ENM >= 6 db No spec PreBER 1 X 10-5 No spec PostBER 1 X 10-8 No spec Severely Errored Seconds Zero No spec FrqResponse <= 3 db peak/valley (+/- 1.5 db) <= 6 db peak/valley (+/- 3 db) Group Delay <= 150 ns/6 MHz <= 370 ns/6 MHz LFI/HUM <= 3% No spec Phase Noise/Hz <= 2 degrees < -86 db/hz (see comments 5, 6) EQ Stress See SCTE specs Reflec > - 10 <=.5 microsec - 15 <= 1 microsec 5. Present ANSI/SCTE spec is -88 db/hz, but is relaxed by the FCC to -86 db/hz <= 1.5 microsec 6. There are no 'field' QAM analyzers at present that will measure the phase noise spec to sufficient accuracy in db/hz. The Sunrise - 30 <= 4.5 microsec Telecom AT2500RQv3/4 analyzer now offers an accurate measurement, but results are in 'degrees' - with no direct correlation back to the SCTE parameter of db/hz. For now, an arbitrary limit of 2 degrees is chosen for headend and field measurements. 7. Finally, SCTE states a 'transit delay limit' of <=.8 seconds to the most distant subscriber, hower measurement of this parameter is waivered at present. Cablesoft Engineering, Inc.

46 24 HOUR SYSTEM STABILITY TEST PLANT TESTS - LOG SHEET REGION: SYSTEM: HEADEND: Primary Node: YR: 2013 Channel Configuration(STD,HRC,IRC): STD LOCATION: TP#3 HIGHEST CH#USED: 61 COLD MO TEST DATE: March 4th & 5th, HOT MONTH TEST DATE: 24 6 MO TIME 11:48 AM 5:47 PM 11:47 PM 5:47 AM HR AUR HR AUR TOT CH T1 T2 T3 T4 VAR SEP T1 T2 T3 T4 VAR SEP VAR. V A V A V A V A V A V A V A V A PASS PASS PASS NA PASS PASS PASS FAIL FAIL PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS Cablesoft Enginering, Inc.

47 PASS MIN MAX VAR ADJ TEST SUMMARY PARAMETER DATA SPECIFICATION RESULT COLD TEST VARIATION, ANY ONE CHANNEL, 24 HRS 3.3 < 8 db PASS ADJACENT CHANNEL VARIATION, ANY ONE TEST 4 <= 3 db FAIL MINIMUM DELIVERED SIGNAL, ALL TESTS 10.4 >= 3 dbmv PASS AURAL SEPARATION TEST FAIL 10<=SEP<=17 db VARIATION OVER ENTIRE BAND, ANY ONE TEST 7.9 < 12 db PASS HOT TEST VARIATION, ANY ONE CHANNEL, 24 HRS 0 < 8 db ADJACENT CHANNEL VARIATION, ANY ONE TEST 0 <= 3 db MINIMUM DELIVERED SIGNAL, ALL TESTS 0 >= 3 dbmv AURAL SEPARATION TEST PASS 10<=SEP<=17 db VARIATION OVER ENTIRE BAND, ANY ONE TEST 0 < 12 db 6 MONTH COMPARISON VARIATION ANY ONE CHANNEL, 6 MONTHS 0 < 8 db TEST TECHNICIAN: Local REGION: 0 SYSTEM: 0 HEADEND: 0 HUB: 0 NOTE: ALL LEVELS IN dbmv, ALL VARIATIONS IN db LOCATION: 0 Cablesoft Enginering, Inc.

48 TP#4 Test Data & Response Waveform(s)

49 Field Test Point #4. Spectrum Capture is from 0 to 900 MHz. Overall response is good.