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The American Radio Relay League (ARRL) cited a U.K. study and the...

The American Radio Relay League (ARRL) cited a U.K. study and the FCC’s UWB order to reiterate its call for the Commission to “reconsider, rescind and re-study” its BPL rules adopted last Oct. The FCC had held in its…

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UWB order, the ARRL said, that a “reasonable reading” of Sec. 301 of the Communications Act would limit licensing to “any apparatus which transmits enough energy to have a significant potential for causing harmful interference.” In a citation filed with the FCC, the league said the agency can’t authorize BPL, although it’s an unintentional radiator, because of “acknowledged and substantial interference potential to licensed users.” The ARRL argued that in permitting unlicensed Part 15 devices such as BPL, the FCC’s main obligation is to establish a emission level low enough that devices “will predictably not interfere” with licensed services. Citing studies by U.K.’s telecom regulator Ofcom, the league said BPL’s small market share in the U.K. compared with DSL and cable is attributable to signal leakage.