FCC released order that adopted, with few changes, rulemaking tha...
FCC released order that adopted, with few changes, rulemaking that made way for advanced digital communications in 117.975-137 MHz and implements flight information services (FIS) in 136-137 MHz. Order: (1) Allows FAA to use 5 additional channels in 136-…
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136.475 MHz. (2) Authorizes implementation of flight information services in 136-137 MHz. (3) Accommodates digital communications systems in 117.975-137 MHz aeronautical radio spectrum. (4) Says 5 channels previously set aside for special purpose aeronautical en route operations in Gulf of Mexico no longer were reserved and could be licensed for general purpose aeronautical en route operations. “These rule amendments will enhance the safety of aviation by alleviating spectrum congestion in the aeronautical radio frequency bands and by paving the way for the introduction of FIS and other new digital communications services,” order said. Commission adopted order April 5 and released it Fri. Order stems from petition for rulemaking filed by Small Aircraft Manufacturers Assn., which wanted aviation rules revised so digital data transmission could be used and 4 channels could be designated for new Flight Information Services. Those services are delivered to cockpit through digital data link that provides flight information, including weather and advisories through data rather than voice transmissions. Services are meant to work with, rather than replace, voice communications offering same information. FCC retained existing allocation of 136-137 MHz and gave FAA access to 5 channels formerly held in reserve.