Wireless Microphones and White Spaces Who, What, When, Why, How? Chris Lyons Shure Incorporated
Spectrum Map.03 MHz AM RADIO.3MHz 3MHz 2-4 5-6 FM RADIO 7-13 30 MHz 14-69 Cell Phn CellPhn 300 MHz 3 GHz This 30 GHz material may not be published or duplicated without permission.
UHF Band Core Band 700 MHz Band 698 MHz Public Safety Analog D D Analog Auction Radio Astronomy 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 470-476 476-482 482-488 488-494 494-500 500-506 506-512 512-518 518-524 524-530 530-536 536-542 542-548 548-554 554-560 560-566 566-572 572-578 578-584 584-590 590-596 596-602 602-608 608-614 614-620 620-626 626-632 632-638 638-644 644-650 650-656 656-662 662-668 668-674 674-680 680-686 686-692 692-698 698-704 704-710 710-716 716-722 722-728 728-734 734-740 740-746 746-752 752-758 758-764 764-770 770-776 776-782 782-788 788-794 794-800 800-806
The 700 MHz Band Public Safety D Block Verizon Public Safety D Block Verizon AT&T Various Qualcommm AT&T Various 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 698 MHz 806 MHz
When Do Wireless Mics Need to Stop Operating in 700 MHz Band? FCC NPRM Shure Feb 18, 2009 Feb 2009 (Public Safety bands) 24 months (Commercial bands) FUN FACT: Since 2006, the FCC has approved 146 new 700 MHz wireless products. The most recent was in August 2008 the same month that they proposed that users should exit by February 2009.
USA Falling Behind in Broadband Access 40 35 30 25 20 15 OECD Broadband subscribers per 100 inhabitants, by technology, December 2007 #4 Other in 2001 Fibre/LAN Cable #15 in 2007 DSL OECD average 10 5 0 Source: OECD Number of subscribers per 100 inhabitants Source: Organisation for Economic Cooperation and Development
The UHF Spectrum (Houston, TX) White Spaces Auctioned c Safety for new commercial wireless services Radio Astronomy Public Safety Public Safety Chan 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 470-476 476-482 482-488 488-494 494-500 500-506 506-512 512-518 518-524 524-530 530-536 536-542 542-548 548-554 554-560 560-566 566-572 572-578 578-584 584-590 590-596 596-602 602-608 608-614 614-620 620-626 626-632 632-638 638-644 644-650 650-656 656-662 662-668 668-674 674-680 680-686 686-692 692-698 698-704 704-710 710-716 716-722 722-728 728-734 734-740 740-746 746-752 752-758 758-764 764-770 770-776 776-782 782-788 788-794 794-800 800-806 Publi Freq Range (MHz) 512 MHz 698 MHz
White Space Devices Fixed/Access Personal/Portable
Spectrum Sensing Listen Before e Talk > 100,000 W.01 -.1 W 44 45 46
Results of Field Testing Baltimore Ravens game at Fedex Field Spamalot on Broadway
Disabling Beacon Tells WS devices which channels to avoid Stay out of channel 26 One beacon per channel? Available to licensed mic users only?
Part 74 Licensing GOAL: Prevent wireless mics from interfering with broadcasts No record of such interference since 1977 FCC limits license eligibility to: Broadcasters Cable operators /Film production co s However, FCC has granted licenses to: Universities Private companies Churches License eligibility determined by type of use, not type of user
What About Other Bands? 944-952 MHz STL s 902-928 MHz Consumer products, DMX, industrial controls, ham radio 2.4 GHz Wi-Fi, Bluetooth, th DMX
Where Things Stand Now FCC looking for a solution that allows new use of spectrum protects broadcasters & mic users in White Spaces expands licensing to culturally important users Provides a clear transition path for installed base of 700 MHz wireless mic users?
To-Do List Identify local active channels www.shure.com/frequency Take inventory of your gear Manufacturer, model, MHz Replace systems in 700 MHz spectrum by...???
For More Information www.shure.com/whitespaces Lyons_chris@shure.com To monitor FCC proceedings: www.fcc.gov/oet/projects/tvbanddevice/