Project 25 Phase 2 standard heads into homestretch

KANSAS CITY—The APCO Project 25 Interface Committee, or APIC, has sent the physical-layer proposal for the second phase of the standard—including a harmonized, industry-consensus two-slot time division multiple access, or TDMA, common air interface standard for 12.5 kHz channels—to the Telecommunications Industry Association’s TR8-12 committee, said Roy McClellan, director of standards development for EADS North America. The proposal will be vetted in the committee, for which McClellan recently was elected vice chairman. McClellan said in an interview with Urgent Communications yesterday that he’s not anticipating any major glitches. He said he is comfortable that major issues have been ...

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