RF Test Report: irspan ib44 to 47CFR5.247 FCC ID: O2J-iB44 SC_TR_5_B Prepared for: irspan Communications Ltd Capital Point, 33 Bath Road Slough, Berkshire SL 3UF Sulis Consultants Limited Mead House, Longwater Road, Eversley, Hampshire, RG27 NW, UK Registered in England & Wales, number 5466247 http://www.sulisconsultants.com
Contents Revision History 4 2 Purpose 4 3 Reference Documents 4 4 Test Information 5 4. Client 5 4.2 Test personnel 5 4.2. ntenna port Conducted Emissions < 2 GHz 5 4.2.2 ll Radiated Emissions and ntenna port Conducted Emissions > 2 GHz 5 4.3 Test sample 5 5 Product Description 6 6 Test Configuration 7 6. Test sample 7 6.2 Support equipment 7 6.3 Test equipment 7 6.3. Conducted measurements < 2 GHZ 7 6.3.2 ll Radiated Emissions and ntenna port Conducted Emissions > 2 GHz 8 6.4 Equipment set-up 9 6.5 Supported ntennas 9 7 Summary of tests performed 8 6dB Bandwidth test 8. Measurement method 8.2 Test results 9 Maximum Conducted Power 4 9. Measurement method 4 9.2 Test results 4 Maximum Power Spectral Density 7. Measurement method 7.2 Test results 7 Unwanted Emissions outside Restricted Bands 2. Measurement method 2.2 Test results for 546 725 MHz band 2.3 Test results for 6.2 7.7 GHz 22 2 Maximum Emissions in Restricted Band 23 2. Measurement method 24 2.. Conducted measurements 24 2..2 Radiated measurements 24 2.2 Test results for frequencies below GHz 25 2.3 Test results for 2 GHz conducted 26 2.3. 2 MHz Channels 26 2.3.2 4 MHz Channels 27 2.3.3 8 MHz Channels 27 SC_TR_5_B Page 2 of 29
2.4 Radiated test results for 4 GHz - antenna terminated 28 2.5 Radiated test results antenna fitted 29 Figures Figure : Test Configuration... 9 Figure 2: Occupied Bandwidth plots... 3 Figure 3: Peak Conducted Power plots... 6 Figure 4: Spectral Density plots... 9 Figure 5: CSE 546 725 MHz, BPSK... 2 Figure 6: 3- MHz RSE; 2 MHz channel at 579 MHz... 25 Figure 7: 4 GHz RSE; antenna port terminated... 29 Figure 8: 4 GHz RSE; antenna fitted... 29 Tables Table : Test frequencies... 6 Table 2: Equipment under test... 7 Table 3: Support Equipment... 7 Table 4: Test Equipment irspan... 7 Table 5: Test Equipment Hursley EMC... 8 Table 6: EUT ntenna configurations... 9 Table 7: Summary of test results... Table 8: Occupied Bandwidth... Table 9: Channel Power... 4 Table : Spectral Density results... 7 Table : Out of band emissions limits above GHz... 24 Table 2: Restricted band emissions 3 - MHz... 25 Table 3: Restricted Band CSE results for 2 MHz channels... 26 Table 4: Restricted Band CSE results for 4 MHz channels... 27 Table 5: Restricted Band CSE results for 8 MHz channels... 27 Table 6: Restricted Band RSE results with antenna terminated... 28 Table 7: Restricted Band RSE results with antenna fitted... 29 SC_TR_5_B Page 3 of 29
Revision History Revision Originator Date Comment C Blackham 7 pril 25 st issue B C Blackham 7 Sept 25 Corrected typing error in section 6.5 2 Purpose This report details testing performed on irspan ib44 against FCC requirements. 3 Reference Documents [] Title 47 CFR5 Federal Communications Commission Title 47 Code of Federal Regulations Part 5 [2] NSI C63.-29 IEEE merican National Standard for Testing Unlicensed Wireless Devices Committee 63 standard 63- th September 29. [3] KDB 55874 D DTS Meas Guidance v3r2 [4] KDB 6629 D Multiple Transmitter Output v2r Federal Communications Commission Office of Engineering and Technology Laboratory Division: Guidance for Performing Compliance Measurements on Digital Transmission Systems (DTS) Operating Under 5.247. June 5, 24 Federal Communications Commission Office of Engineering and Technology Laboratory Division: Emissions Testing of Transmitters with Multiple Outputs in the Same Band (e.g., MIMO, Smart ntenna, etc). October 3, 23 [5] SC_TR_5_plots Sulis Consultants Ltd: RF Test Report supplement - irspan ib44 to 47CFR5.247, FCC ID: O2J-iB44 SC_TR_5_B Page 4 of 29
4 Test Information 4. Client irspan Communications Ltd Capital Point, 33 Bath Road Slough, SL 3UF UK 4.2 Test personnel 4.2. ntenna port Conducted Emissions < 2 GHz Testing was performed by Charlie Blackham of Sulis Consultants Ltd at irspan Communications offices on 8 and 3 March 25. 4.2.2 ll Radiated Emissions and ntenna port Conducted Emissions > 2 GHz Testing was performed at Hursley EMC Services Ltd by Richard Pennell on 2 March 25 and 24 March 25. 4.3 Test sample The results herein only refer to sample detailed in section 6. SC_TR_5_B Page 5 of 29
5 Product Description The device operates in the 5725-585 MHz band with the following ranges of Centre for different channel bandwidths: Channel Bandwidth Range of Centre frequencies 2 MHz 5745 583 MHz 4 MHz 5755 582 MHz 8 MHz 579 MHz only This leaves a guard band of at least MHz at top and bottom of the band. s band of operation for 2 and 4 MHz channels is > MHz, the device will be tested on the following channels: Test Channel 2 MHz Channels 4 MHz channels 8 MHz channel Bottom 5745. 5755. Not applicable Middle 579. 579. 579. Top 583. 582. Not applicable Table : Test frequencies SC_TR_5_B Page 6 of 29
6 Test Configuration 6. Test sample The equipment under test (EUT) was: Manufacturer Part number Model Number Serial Number irspan 92-4-5 ib44-22-p- 58424C95F Table 2: Equipment under test 6.2 Support equipment The support equipment was: Description Manufacturer Name Serial Number Laptop Dell Latitude IRN665 POE injector MIT-9G-24H 4C666DRC5 Table 3: Support Equipment 6.3 Test equipment 6.3. Conducted measurements < 2 GHZ Description Manufacturer Name Serial Number Calibration certificate Receiver Network nalyser Rohde & Schwarz Rohde & Schwarz FSQ 26 28 R&S Ref:-334873 25-2-7 ZVB2 4 R&S 4-4257 6 Dec 24 ttenuator MCL BW-NW2+ N/ Calibrated in-situ and loaded RF cable Suhner Sucoflex 4 8677/4 as Transducer Factor Table 4: Test Equipment irspan SC_TR_5_B Page 7 of 29
6.3.2 ll Radiated Emissions and ntenna port Conducted Emissions > 2 GHz The following equipment is all owned by Hursley EMC Services Ltd. #ID CP Manufacturer Type Serial Nø Description Calibration due date 4 HP 8593EM 353637 Spectrum analyser (9kHz-26.5GHz) 5//25 5 HP 8447D 937234 Pre-amplifier (3-MHz) 6///26 7 HP 8449B 3848 Pre-amplifier (.-26.5GHz) +.5m cable 5/2/25 7 2 Q-par ngus WBH28HN 2895 Horn antenna (2-8GHz) 29//26 452 3 CHSE CBL 64 43 Pink 3M-2G ntenna 2//25 466 2 Schwarzbeck BBH 92 57 57 -GHz Horn 29//25 53 IntelliConnect Cable I796 N Tpye Cable 4M yellow 2/2/25 552 Rohde & Schwarz ESCI7 665957 7GHz Receiver 7/4/25 2 Rohde & Schwarz ESIB 92 Test receiver (4GHz) 24/7/25 399 Q-par ngus WBH8-4k 3 8 to 4GHz Horn 7/8/25 Table 5: Test Equipment Hursley EMC SC_TR_5_B Page 8 of 29
6.4 Equipment set-up Equipment was configured as per figure : The ib44 was connected to the laptop using a USB cable so that operating mode could be configured as required for relevant test. The losses for the RF cables were measured and loaded into the Spectrum nalyser as a transducer factor. ib44 Spectrum nalyser R&S FSQ26 RF cables and attenuator 5V DC (USB cable) Laptop C Mains Figure : Test Configuration 6.5 Supported ntennas The EUT supports operation with the following antennas: ntenna type Type Gain Integral Flat panel 23. dbi External Dish 28.6 dbi Table 6: EUT ntenna configurations Note: The integral antenna is integral to the unit, but must be connected using the external SM connectors that also allow connection to higher gain external antenna. This is the test point used for measurements. SC_TR_5_B Page 9 of 29
7 Summary of tests performed Test Clause Limit / Requirement Result 6dB bandwidth 5.247(a)(2) > 5 khz Pass Max peak conducted TX power Power Spectral Density Out of Band Emissions Non-restricted bands Out of Band Emissions Restricted-band: Conducted Max antenna gain 5.247(b)(3) W Pass 5.247(e) 8dBm / 3 khz Pass 5.247(d) -3 dbc (average power) Pass 5.247(d) / 5.25(a) and 5.29(a) 5.29(a) table Pass 5.247(b)(4)() Table 7: Summary of test results > 6dBi for P2P without power reduction Pass SC_TR_5_B Page of 29
8 6dB Bandwidth test 8. Measurement method Test was conducted as using the automatic bandwidth measurement capability of the receiver, whilst using the following settings: Set resolution bandwidth to khz Set the video bandwidth to 3 x RBW Detector = Peak. Trace mode = max hold. Sweep = auto couple. llow the trace to stabilize. Record measured Occupied Bandwidth reported by the analyser. 8.2 Test results Measurements made on single port, V. Channel Bandwidth Modulation Occupied Bandwidth Requirement Result 2 5745 BPSK 7.74 > 5 khz Pass 2 579 BPSK 7.74 > 5 khz Pass 2 583 BPSK 7.74 > 5 khz Pass 2 5745 QM 7.7 > 5 khz Pass 4 5755 BPSK 36.25 > 5 khz Pass 4 579 BPSK 36.22 > 5 khz Pass 4 582 BPSK 36.4 > 5 khz Pass 4 582 QM 36.2 > 5 khz Pass 8 579 BPSK 75.64 > 5 khz Pass 8 579 QM 75.48 > 5 khz Pass Table 8: Occupied Bandwidth Bottom channel 2 MHz tested on all modulations. Other channel bandwidths checked on BSPK and 6QM SC_TR_5_B Page of 29
* RBW khz Marker [T ] * RBW khz Marker [T ] * VBW MHz 2.66 dbm * VBW MHz 2.89 dbm Ref 2 dbm tt 25 db SWT 2 ms 5.75 GHz Ref 2 dbm tt 25 db SWT 2 ms 5.7925 GHz 2 OBW 7.7438465 MHz Temp [T OBW] 2 OBW 7.7438465 MHz Temp [T OBW] PK MXH T 4.99 dbm T2 5.73653846 GHz Temp 2 [T OBW] 4.97 dbm 5.75389423 GHz PK MXH T 5.42 dbm T2 5.7853846 GHz Temp 2 [T OBW] 5.5 dbm 5.79889423 GHz - - -2-2 -3-3 -4-4 -5-5 -6-6 -7-7 -8-8 Center 5.745 GHz 3 MHz/ Span 3 MHz Center 5.79 GHz 3 MHz/ Span 3 MHz Date: 8.MR.25 3:4:54 Date: 8.MR.25 3:5:47 2-OCC-low BPSK 2-OCC-mid BPSK * RBW khz Marker [T ] * RBW khz Marker [T ] * VBW MHz 2.89 dbm VBW 3 khz.63 dbm Ref 2 dbm tt 25 db SWT 2 ms 5.8325 GHz Ref 2 dbm tt 25 db SWT 2 ms 5.73879936 GHz 2 OBW 7.7438465 MHz Temp [T OBW] 2 OBW 7.78333333 MHz Temp [T OBW] PK MXH T 5. dbm T2 5.8253846 GHz Temp 2 [T OBW] 5.37 dbm 5.83889423 GHz PK MXH T 5.92 dbm T2 5.7365769 GHz Temp 2 [T OBW] 6.25 dbm 5.753843 GHz - - -2-2 -3-3 -4-4 -5-5 -6-6 -7-7 -8-8 Center 5.83 GHz 3 MHz/ Span 3 MHz Center 5.745 GHz 2.5 MHz/ Span 25 MHz Date: 8.MR.25 3:6:37 Date: 8.MR.25 7:26:32 2-OCC-high BPSK 2-OBW-LOW-6QM * RBW khz Marker [T ] * RBW khz Marker [T ] VBW 3 khz.56 dbm VBW 3 khz 7.7 dbm Ref 2 dbm tt 25 db SWT 2 ms 5.73879936 GHz Ref 2 dbm tt 25 db SWT 2 ms 5.73879936 GHz PK MXH 2 T OBW 7.78333333 MHz Temp [T OBW] 5.79 dbm T2 5.7365769 GHz Temp 2 [T OBW] 5.5 dbm 5.753843 GHz PK MXH 2 T OBW 7.78333333 MHz Temp [T OBW] 2.7 dbm 5.7365769 GHz T2 Temp 2 [T OBW] 2.35 dbm 5.753843 GHz - - -2-2 -3-3 -4-4 -5-5 -6-6 -7-7 -8-8 Center 5.745 GHz 2.5 MHz/ Span 25 MHz Center 5.745 GHz 2.5 MHz/ Span 25 MHz Date: 8.MR.25 7:27:4 Date: 8.MR.25 7:27:35 2-OBW-LOW-64QM 2-OBW-LOW-256-QM SC_TR_5_B Page 2 of 29
* RBW khz Marker [T ] * RBW khz Marker [T ] * VBW MHz 9. dbm * VBW MHz 9.83 dbm Ref 2 dbm tt 25 db SWT 2 ms 5.75 GHz Ref 2 dbm tt 25 db SWT 2 ms 5.774935897 GHz PK MXH 2 T OBW 36.25 MHz Temp [T OBW] 3.87 dbm 5.736826923 GHz T2 Temp 2 [T OBW] 2.3 dbm 5.77376923 GHz PK MXH 2 T OBW 36.2794878 MHz Temp [T OBW] 5.3 dbm 5.778897 GHz T2 Temp 2 [T OBW] 2.8 dbm 5.8828846 GHz - - -2-2 -3-3 -4-4 -5-5 -6-6 -7-7 -8-8 Center 5.755 GHz 6 MHz/ Span 6 MHz Center 5.79 GHz 5 MHz/ Span 5 MHz Date: 8.MR.25 3:3:57 Date: 8.MR.25 3:2:33 4-OCC-low 4-OCC-mid * RBW khz Marker [T ] * RBW khz Marker [T ] * VBW MHz 9.3 dbm * VBW MHz 7. dbm Ref 2 dbm tt 25 db SWT 2 ms 5.8495923 GHz Ref 2 dbm tt 25 db SWT 2 ms 5.828733974 GHz PK MXH 2 T OBW 36.378253 MHz Temp [T OBW] 3.23 dbm 5.88926 GHz T2 Temp 2 [T OBW] 2.57 dbm 5.83828846 GHz PK MXH 2 T OBW 36.2794878 MHz Temp [T OBW] 4.3 dbm 5.88897 GHz T2 Temp 2 [T OBW].76 dbm 5.83828846 GHz - - -2-2 -3-3 -4-4 -5-5 -6-6 -7-7 -8-8 Center 5.82 GHz 5 MHz/ Span 5 MHz Center 5.82 GHz 5 MHz/ Span 5 MHz Date: 8.MR.25 3:23:27 Date: 3.MR.25 :29:56 4-OCC-high 4-OCC-high-6QM * RBW khz Marker [T ] * RBW khz Marker [T ] VBW 3 khz 6.87 dbm * VBW MHz 5.85 dbm Ref 2 dbm tt 25 db SWT 2 ms 5.773653846 GHz Ref 2 dbm tt 25 db SWT 2 ms 5.76743846 GHz 2 OBW 75.642564 MHz Temp [T OBW] 2 OBW 75.642564 MHz Temp [T OBW] PK MXH T 2.4 dbm 5.752923 GHz Temp 2 [T T2 OBW] -.28 dbm 5.82766256 GHz PK MXH T. dbm 5.752923 GHz Temp 2 [T OBW] T2 -.98 dbm 5.82766256 GHz - - -2-2 -3-3 -4-4 -5-5 -6-6 -7-7 -8-8 Center 5.79 GHz MHz/ Span MHz Center 5.79 GHz MHz/ Span MHz Date: 8.MR.25 7:22:4 Date: 3.MR.25 :3:2 8-OCC Figure 2: Occupied Bandwidth plots 8-6QM SC_TR_5_B Page 3 of 29
9 Maximum Conducted Power 9. Measurement method Test was conducted using the automatic channel power measurement capability of the receiver, whilst using the following settings: Set the RBW = MHz Set the VBW = MHz ( 3 x RBW). Sweep time = 5 s. Detector = RMS. Trace mode = single sweep. 9.2 Test results EUT set to transmit at maximum power on the required channel. ll measurements made on port V, and highest values were obtained with BPSK modulation. The channel with highest emission for each bandwidth was checked at all higher modulation rates in each case the total power was lower than with BPSK and plots are in report SC_TR_5_plots. Channel Bandwidth Channel Power (dbm) dd 3dBm Limit (dbm) Result Plot name 2 5745 23.5 26.5 3. Pass 2-CP-low 2 579 23.46 26.46 3. Pass 2-CP-mid 2 583 23.56 26.56 3. Pass 2-CP-high 4 5745 22.38 25.38 3. Pass 4-CP-low 4 579 22.72 25.72 3. Pass 4-CP-mid 4 584 22.45 25.45 3. Pass 4-CP-high 8 579 2.82 24.82 3. Pass 8-CP Table 9: Channel Power SC_TR_5_B Page 4 of 29
Ref 2 dbm tt 25 db * RBW MHz VBW MHz * SWT 5 s Ref 2 dbm tt 25 db * RBW MHz VBW MHz * SWT 5 s - RM * CLRWR -2 - RM * CLRWR -2-3 -3-4 -4-5 -5-6 -6-7 -7 Center 5.745 GHz 2.5 MHz/ Span 25 MHz Center 5.79 GHz 2.5 MHz/ Span 25 MHz Tx Channel Bandwidth 2 MHz Power 23.5 dbm Tx Channel Bandwidth 2 MHz Power 23.46 dbm Date: 8.MR.25 2:55:23 Date: 8.MR.25 2:44: 2-CP-low 2-CP-mid Ref 2 dbm tt 25 db * RBW MHz VBW MHz * SWT 5 s - RM * CLRWR -2-3 -4-5 -6-7 Center 5.83 GHz 2.5 MHz/ Span 25 MHz Tx Channel Bandwidth 2 MHz Power 23.56 dbm Date: 8.MR.25 2:59:44 2-CP-high SC_TR_5_B Page 5 of 29
Ref 2 dbm tt 25 db * RBW MHz VBW MHz * SWT 5 s Ref 2 dbm tt 25 db * RBW MHz VBW MHz * SWT 5 s - RM * CLRWR -2 - RM * CLRWR -2-3 -3-4 -4-5 -5-6 -6-7 -7 Center 5.755 GHz 5 MHz/ Span 5 MHz Center 5.79 GHz 5 MHz/ Span 5 MHz Tx Channel Bandwidth 4 MHz Power 22.38 dbm Tx Channel Bandwidth 4 MHz Power 22.72 dbm Date: 8.MR.25 2:53:33 Date: 8.MR.25 2:52:45 4-CP-low 4-CP-mid Ref 2 dbm tt 25 db * RBW MHz VBW MHz * SWT 5 s Ref 2 dbm tt 25 db * RBW MHz VBW MHz * SWT 5 s Marker [T ] 2.96 dbm 5.825 GHz - RM * CLRWR -2 - RM * CLRWR -2-3 -3-4 -4-5 -5-6 -6-7 -7 Center 5.82 GHz 5 MHz/ Span 5 MHz Tx Channel Bandwidth 4 MHz Power 22.45 dbm Center 5.79 GHz MHz/ Span MHz Tx Channel Bandwidth 8 MHz Power 2.82 dbm Date: 8.MR.25 3::56 Date: 8.MR.25 7:6:43 4-CP-high 8-CP Figure 3: Peak Conducted Power plots SC_TR_5_B Page 6 of 29
Maximum Power Spectral Density. Measurement method Maximum Peak Conducted Power was performed according to method Method S- Set the RBW = khz (Reduce if required until limit is met) Set the VBW = MHz ( 3 x RBW). Set span =.2x Channel bandwidth. Sweep time = 5 s. Detector = RMS. Trace mode = single sweep. Use the peak marker function to determine the maximum power level in any khz band segment within the fundamental EBW. Compare resultant PSD value with maximum permitted value of 8dBm / 3kHz..2 Test results Whilst BPSK had highest total channel power, checks were also made on higher order modulation as well: Channel Bandwidth Modulation Peak Marker reading (dbm) dd 3dB for 2 antennas Limit (dbm/3khz) Result 2 5745 BPSK 2.9 5.9 8. Pass 2 579 BPSK 2.3 5.3 8. Pass 2 583 BPSK 2.2 5.2 8. Pass 2 5745 QM.24 4.24 8. Pass 4 5755 BPSK -.2.8 8. Pass 4 579 BPSK -.8.92 8. Pass 4 582 BPSK -.84.6 8. Pass 4 582 QM -.65.35 8. Pass 8 579 BPSK -5. -2. 8. Pass 8 579 QM -6.2-3.2 8. Pass Table : Spectral Density results SC_TR_5_B Page 7 of 29
* RBW khz Marker [T ] * RBW khz Marker [T ] * VBW MHz 2.9 dbm * VBW MHz 2.3 dbm Ref 2 dbm tt 45 db * SWT 5 s 5.74233974 GHz Ref 2 dbm tt 45 db * SWT 5 s 5.7838974 GHz 2 2 RM * CLRWR RM * CLRWR - - -2-2 -3-3 -4-4 -5-5 -6-6 -7-7 -8-8 Center 5.745 GHz 2.5 MHz/ Span 25 MHz Center 5.79 GHz 2.5 MHz/ Span 25 MHz Date: 3.MR.25 :4:54 Date: 3.MR.25 :37:26 2-PSD-low 2-PSD-mid * RBW khz Marker [T ] * RBW khz Marker [T ] * VBW MHz 2.2 dbm * VBW MHz.24 dbm Ref 2 dbm tt 45 db * SWT 5 s 5.82499987 GHz Ref 2 dbm tt 45 db * SWT 5 s 5.73999987 GHz 2 2 RM * CLRWR RM * CLRWR - - -2-2 -3-3 -4-4 -5-5 -6-6 -7-7 -8-8 Center 5.83 GHz 2.5 MHz/ Span 25 MHz Center 5.745 GHz 2.5 MHz/ Span 25 MHz Date: 3.MR.25 :4:59 Date: 3.MR.25 :42:29 2-PSD-high 2-PSD-low-QM SC_TR_5_B Page 8 of 29
* RBW khz Marker [T ] * RBW khz Marker [T ] * VBW MHz -.2 dbm * VBW MHz -.8 dbm Ref 2 dbm tt 45 db * SWT 5 s 5.7425 GHz Ref 2 dbm tt 45 db * SWT 5 s 5.7775 GHz 2 2 RM * CLRWR RM * CLRWR - - -2-2 -3-3 -4-4 -5-5 -6-6 -7-7 -8-8 Center 5.755 GHz 5 MHz/ Span 5 MHz Center 5.79 GHz 5 MHz/ Span 5 MHz Date: 3.MR.25 :44:9 Date: 3.MR.25 :45: 4-PSD-low 4-PSD-mid * RBW khz Marker [T ] * RBW khz Marker [T ] * VBW MHz -.84 dbm * VBW MHz -.65 dbm Ref 2 dbm tt 45 db * SWT 5 s 5.875 GHz Ref 2 dbm tt 45 db * SWT 5 s 5.7787923 GHz 2 2 RM * CLRWR RM * CLRWR - - -2-2 -3-3 -4-4 -5-5 -6-6 -7-7 -8-8 Center 5.82 GHz 5 MHz/ Span 5 MHz Center 5.79 GHz 5 MHz/ Span 5 MHz Date: 3.MR.25 :45:46 Date: 3.MR.25 :46:38 4-PSD-high 4-PSD-high-QM * RBW khz Marker [T ] * RBW khz Marker [T ] * VBW MHz -5. dbm * VBW MHz -6.2 dbm Ref dbm tt 35 db * SWT 5 s 5.762435897 GHz Ref dbm tt 35 db * SWT 5 s 5.774935897 GHz RM * CLRWR - RM * CLRWR - -2-2 -3-3 -4-4 -5-5 -6-6 -7-7 -8-8 -9-9 Center 5.79 GHz MHz/ Span MHz Center 5.79 GHz MHz/ Span MHz Date: 3.MR.25 :48:2 Date: 3.MR.25 :48:5 8-PSD 8-PSD-QM Figure 4: Spectral Density plots SC_TR_5_B Page 9 of 29
Unwanted Emissions outside Restricted Bands This section was only done where compliance with limits for restricted bands, in both restricted and non-restricted bands, could not be achieved or was not required. The following bands were investigated: 546 725 MHz 6.2 7.7 GHz.. Measurement method Since peak power measurements were made using a RMS detector, the same detector will be used for unwanted emissions. The unwanted emissions shall be at least 3dB lower than the wanted emission. Testing in the bands immediately adjacent to the wanted band may be done with lower than stated RBW provided the power is integrated over the required bandwidth. First, establish a reference level by using the following procedure for measuring the peak power level in any khz bandwidth within the fundamental emission: The measurement procedure for determining the reference level laid down in section 5.4.. of KDB55874 is identical to measurement method employed in section, so maximum values Peak Marker Values obtained in section. shall be used. The Maximum out of Band Emissions values are determined by subtracting 3dB from the values obtained in section and detailed in table 9 which gives the resultant maximum permitted out-of-band emissions levels detailed in table : Next, determine the power in khz band segments outside of the authorized frequency band using the following measurement: Measurement Procedure - Unwanted Emissions Set RBW = khz. Set VBW = 3 khz. Set span to encompass the spectrum to be examined. Detector = peak. Trace Mode = max hold. Sweep = auto couple. llow the trace to stabilize (this may take some time, depending on the extent of the span). SC_TR_5_B Page 2 of 29
.2 Test results for 546 725 MHz band Channel Bandwidth 2 5745 2 579 2 583 4 5755 4 579 4 582 Maximum RMS level in khz RBW (dbm) (section ) -3 dbc (dbm) Maximum emission in 546 725 MHz (dbm) Result 2.9-27.9-4.42 Pass -.2-3.2-39.48 Pass 8 579-5. -35. -42.42 Pass * RBW khz Marker [T ] * RBW khz Marker [T ] * VBW MHz -4.42 dbm * VBW MHz -39.49 dbm Ref dbm * tt 25 db SWT 8 ms 5.725 GHz Ref 2 dbm * tt 25 db SWT 8 ms 5.725 GHz LIMIT CHECK PSS Marker 2 [T3 ] -49.7 dbm 2 LIMIT CHECK PSS Marker 2 [T3 ] -45.58 dbm 5.85 GHz 5.85 GHz RM * VIEW - RM * MXH 2 RM * VIEW -2 2 RM * VIEW - 3 RM * -FCC MXH -3 3 RM * VIEW -2-4 -FCC -3 2-5 -4 2-6 -5-7 -6-8 -7-9 -8 Start 5.46 GHz 79 MHz/ Stop 7.25 GHz Start 5.46 GHz 79 MHz/ Stop 7.25 GHz Date: 3.MR.25 2::56 Date: 3.MR.25 2:6:52 2 MHz 4 MHz * RBW khz Marker 2 [T ] * VBW MHz -42.42 dbm Ref 2 dbm * tt 25 db SWT 8 ms 5.85 GHz 2 LIMIT CHECK PSS Marker [T ] -38.74 dbm 5.725 GHz RM * MXH - -2 -FCC -3-4 2-5 -6-7 -8 Start 5.46 GHz 79 MHz/ Stop 7.25 GHz Date: 3.MR.25 2:2:25 8 MHz Figure 5: CSE 546 725 MHz, BPSK SC_TR_5_B Page 2 of 29
.3 Test results for 6.2 7.7 GHz The plots are in section 7 of SC_TR_5_plots band 6.2 7.7 GHz Channel Bandwidth 2 5745 Maximum RMS level in khz RBW (dbm) (section ) -3 dbc (dbm) Maximum emission in 6.2 7.7 GHz band (dbm) Result -47.58 Pass 2 579 2.9-27.9-56.35 Pass 2 583-57. Pass 4 5755-5.9 Pass 4 579 -.2-3.2-58.2 Pass 4 582-74.22 Pass 8 579-5. -35. -65.43 Pass SC_TR_5_B Page 22 of 29
2 Maximum Emissions in Restricted Band Compliance with this section was demonstrated in more than one method: Either Radiated with antenna port terminated Or Conducted from antenna port and Radiated with antenna port terminated. band Measurement method Section 3 MHz Radiated with antenna fitted 2.2 546 MHz Conducted Radiated with antenna port terminated 2.3 2.4 546 725 MHz No requirement (no restricted bands) N/ 725- MHz Conducted Radiated with antenna port terminated 62 Conducted Radiated with antenna port terminated. 2 nd Harmonic: radiated with antenna port fitted 77-2 Conducted Radiated with antenna port terminated 2.3 2.4 2.3 2.4 2.5 2.3 2.4 2 4 GHz Radiated with antenna fitted 2.6 SC_TR_5_B Page 23 of 29
2. Measurement method 2.. Conducted measurements The radiated emissions field strength limit specified in 5.29(a) is converted to a conducted power at the antenna port as per section 5.4.2 of KDB 55874-d. range Limit Field strength (µv/m) Measurement distance (m) Field Strength (dbµv/m) EIRP (dbm) 3dB for MIMO antennas ntenna port assuming 28.6 dbi antenna > GHz verage 5 3 54. -4.2-44.2-72.8 > GHz Peak verage + 2dB 3 74. -2.2-24.2-52.8 Table : Out of band emissions limits above GHz Measurements above GHz, so the following test method was used as per section 2.2.5. of the KDB: Set the RBW = MHz Set the VBW 3 x RBW Sweep time = auto Detector = RMS. Trace mode = veraging (power) over sweeps. Emissions were measured:, 5,46 MHz including all Restricted and Non-restricted Bands 7,25 2, MHz including all Restricted and Non-restricted Bands 2..2 Radiated measurements Testing was performed according to procedures in NSI C63.4:29. Final radiated testing was performed at a EUT to antenna distance of three metres below 8 GHz and a one metre above 8 GHz. Instrumentation, including receiver and spectrum analyser bandwidth, comply with the requirements of NSI C63.2. SC_TR_5_B Page 24 of 29
2.2 Test results for frequencies below GHz This test was performed as a radiated emissions test at Hursley EMC with antenna fitted to the unit. Worst case emissions were with 2 MHz channels. Restricted Band Maximum emission Quasi- Peak (dbµv/m) Limit Margin 37.5 38.25 37.9 22.95 29.54-6.59 73 74.6 Peak emission > db below limit 74.8 75.2 Peak emission > db below limit ll other below GHz Peak emission > 5 db below limit Table 2: Restricted band emissions 3 - MHz 8 7 Free field Emissions 5FF34(8)_ 25/3/2 Customer :SULIS CONSULTNTS Normalized to:m 6 5 FCC B db µvolts 4 3 2 3 4 5 6 7 2 3 4 5 6 8 MHz Figure 6: 3- MHz RSE; 2 MHz channel at 579 MHz SC_TR_5_B Page 25 of 29
2.3 Test results for 2 GHz conducted 2.3. 2 MHz Channels Range Detector TX Maximum emission (dbm) Limit (dbm) Result Plots in SC_TR_5_plots 5745-59.86-52.8 Pass Peak 579-6.6-52.8 Pass 546 583-6.28-52.8 Pass 5745-76.8-72.8 Pass Figure 2 verage 579-76.3-72.8 Pass 583-76.3-72.8 Pass 5745-59.84-52.8 Pass Peak 579-6.57-52.8 Pass 725-583 -6.5-52.8 Pass 5745-86.2-72.8 Pass Figure 3 verage 579-85.57-72.8 Pass 583-86.3-72.8 Pass 62 nd 77-2 Peak verage 5745 579 583 5745 579 583 ll passed except 2 nd Harmonic which was measured radiated in section 2.4 and 2.5 ll passed except 2 nd Harmonic which was measured radiated in section 2.4 and 2. Figure 4 Table 3: Restricted Band CSE results for 2 MHz channels Note: There are several non-restricted bands in this region, but the only one not being complied with using conducted method is the 6.2 to 7.7 GHz band, which is complied with as a radiated test. SC_TR_5_B Page 26 of 29
2.3.2 4 MHz Channels Range Detector TX Maximum emission (dbm) Limit (dbm) Result Plots in SC_TR_5_plots 5745-63.7-52.8 Pass Peak 579-64.9-52.8 Pass 546 583-63.8-52.8 Pass 5745-76.2-72.8 Pass Figure 5 verage 579-76.2-72.8 Pass 583-76.2-72.8 Pass 5745-65. -52.8 Pass Peak 579-65. -52.8 Pass 725-583 -64.7-52.8 Pass 5745-85.7-72.8 Pass Figure 6 verage 579-78.6-72.8 Pass 583-78.6-72.8 Pass 62 nd 77-2 2 Peak verage 5745 579 583 5745 579 583 ll passed except 2 nd Harmonic which was measured radiated in section 2.4 and 2.5 ll passed except 2 nd Harmonic which was measured radiated in section 2.4 and 2. Figure 7 Table 4: Restricted Band CSE results for 4 MHz channels 2.3.3 8 MHz Channels Range 546 725-62 nd 77 2 2 Detector TX Maximum emission (dbm) Limit (dbm) Result Peak 579-64.5-52.8 Pass verage 579-76. -72.8 Pass Peak 579-65.2-52.8 Pass verage 579-86.3-72.8 Pass Peak 579-55.93-52.8 Pass verage 579 ll passed except 2 nd Harmonics which were measured radiated in section 2.4 and 2.5 Plot name Figure 8 Table 5: Restricted Band CSE results for 8 MHz channels 2 Note: There are several non-restricted bands in this region, but the only one not being complied with using conducted method is the 6.2 to 7.7 GHz band, which is complied with as a radiated test. SC_TR_5_B Page 27 of 29
2.4 Radiated test results for 4 GHz - antenna terminated Worst case values are shown below: range (GHz) Detector Maximum emission (dbµv/m) Limit (dbµv/m) Result -6 Peak < 48 74 Pass verage < 48 54 Pass 6 8 Peak < 6 74 Pass verage 46.64 54 Pass 8-4 Peak 5.49 84 (m) Pass verage <5.49 64 (m) Pass Table 6: Restricted Band RSE results with antenna terminated 8 Radiated 5RE34_6 25/3/2 Customer :SULIS CONSULTNTS Normalized to:3m 8 Radiated 5RE34_4 25/3/2 Customer :SULIS CONSULTNTS Normalized to:3m 7 FCC B Pk 7 FCC B Pk 6 6 db above microvolt/m 5 4 3 FCC B db above microvolt/m 5 4 3 FCC B 2 2 5 2 25 3 35 4 45 55 MHz 3 35 4 45 55 65 75 85 5 2 MHz 6 GHz, Peak 3 8 GHz, peak Marker [T] RBW MHz RF tt db Marker [T] RBW MHz RF tt db Ref Lvl 46.64 dbv VBW 3 MHz Ref Lvl 5.49 dbv/m VBW 3 MHz 87 dbv 6.499896 GHz SWT 7 ms Unit dbv 97 db* 39.955982 GHz SWT 33 ms Unit dbv/m 87 97 8 9 7 8 6 7 MX D 54 dbv 5 IN V 6 MX IN M 4 5 FCC_B_M 3 4 2 3 2 - -3 Start 3 GHz.7 GHz/ Stop 2 GHz -3 Start 8 GHz 2.2 GHz/ Stop 4 GHz Date: 2.MR.25 4:5:2 Date: 2.MR.25 ::25 3 2 GHz, average 2-4 GHz, peak (at m) SC_TR_5_B Page 28 of 29
Figure 7: 4 GHz RSE; antenna port terminated 2.5 Radiated test results antenna fitted Worst case was 2nd Harmonic with 2 MHz channels: Range 62 2-4 Detector Peak verage TX Maximum measured emission (dbµv/m) Limit (dbµv/m) Result 5745 6.56 74. Pass 579 64.34 74. Pass 583 58.82 74. Pass 5745 49.36 54. Pass 579 52.73 54. Pass 583 47.74 54. Pass No emissions above the noise floor which was over db below limit line 54. Pass Table 7: Restricted Band RSE results with antenna fitted Marker [T] RBW MHz RF tt db Marker [T] RBW MHz RF tt db Ref Lvl 52.73 dbv VBW 3 MHz Ref Lvl 32.48 dbv/m VBW 3 MHz 87 dbv.5836633 GHz SWT ms Unit dbv 87 87 db* 87 26. GHz SWT 3 ms Unit dbv/m 8 8 7 D2 74 dbv 7 D2 74 db* 6 MX D 54 dbv 5 IN V 6 VIEW D 54 db* 5 IN V 4 4 3 3 2 2 - -3 Start GHz MHz/ Stop 2 GHz - -3 Date: 2.MR.25 6:27:2 Start 2 GHz 2 GHz/ Stop 4 GHz Date: 24.MR.25 5:34:8 62: 579 ve 2 4: Mid Channel Figure 8: 4 GHz RSE; antenna fitted SC_TR_5_B Page 29 of 29