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FCC’s Office of Engineering & Technology rejected 3 petitions for...

FCC’s Office of Engineering & Technology rejected 3 petitions for rulemaking that sought rule changes for spectrum at 2300-2305 MHz. That spectrum was part of 27 MHz that had been reallocated from govt. to non-govt. uses. Microtrax asked that…

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FCC issue proposal for spectrum, including 2300-2305 MHz, that would provide at least 5 MHz for its proposed personal location and monitoring service. AeroAstro sought primary allocation for fixed and mobile services and co-primary allocation for amateur service. AeroAstro is eyeing proposed satellite-based location and messaging service in that spectrum. American Radio Relay League (ARRL) asked FCC to upgrade existing secondary amateur radio allocation to primary. On Microtrax request, order released Thurs. said FCC had completed or had pending proceedings addressing all of transferred federal bands company suggested for personal location service, except for 2300-2305 MHz. “Microtrax has not demonstrated that an additional allocation is warranted,” order said. In case of AeroAstro, FCC said it had several interference concerns that its petition for rulemaking didn’t cover. AeroAstro is seeking changes that would allow its satellite enabled notification system messaging service to allow users to transmit short data messages in real-time. System’s mobile terminal would transmit low-power, spread spectrum signal to satellite that would relay data to nearest ground receiver station. AeroAstro wants to use 2300-2305 MHz for uplinks to satellite or tower. Commission said AeroAstro didn’t make showing that Deep Space Network would be protected by changes to out-of-band limits. It said company also didn’t explain how mobile terminals communicating with satellite would avoid transmissions near sensitive Deep Space Network operations. FCC said AeroAstro hadn’t demonstrated its proposed system could operate in environment created by existing amateur operations.