Most Support 800 MHz Rule Change, With Protections, EWA Says
Initial comments demonstrate broad support for a proposal to introduce new, full-power, interstitial 12.5 kHz “offset” channels in the 809-817/854-862 MHz band, said the Enterprise Wireless Alliance in reply comments posted by the FCC Wednesday. EWA sought change in 2009…
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and the FCC asked for comment in February (see 1505130018). Replies were posted in docket 15-32. The comments filed “confirm that the Part 90 community has a keen interest in deriving highly efficient use from its limited spectrum allocations,” EWA said. “Virtually all parties support the availability of 800 MHz interstitial channels in the 800 MHz Mid-Band if appropriate protection is provided to adjacent 25 kHz bandwidth systems.” Some critics question whether the interstitial channels can be deployed without creating interference for 25 kHz channel licensees, the alliance said. “The Land Mobile Communications Council (LMCC) is close to completing a detailed matrix that will enable frequency advisory committees (FACs) that chose to coordinate these channels to make appropriate, consistent determinations as to the interference potential between interstitial and full channel systems.” The LMCC recommended some protections for incumbent users of the band based on rules already established by the FCC, including co-channel and adjacent channel separation and limits and antenna power and height. “Proceed conservatively and err, if at all, on the side of protecting the operations of incumbent 25 kHz systems,” LMCC advised the FCC.