ATLANTA 10 GHz GUNNPLEXER STANDARDS PORTABLE VOICE OPERATION Polarization vertical Modulation FM 120 kHz Duplex offset 30.0 MHz Frequencies: 10225 10255 10230 10260 10235 (A) 10265 (B) Calling pair 10240 10270 10245 10275 10220 10250 10280 Gunnpeater triplet The calling pair is 10235/10265, designated the A/B pair. Beacons shall be on the high freq of the pair. Users with only a single 2-diode Gunnplexer should tune it to A. VIDEO FIXED LINKS Polarization horizontal Modulation FM 2 MHz (or deviation with flat video to produce 1vpp from a TVRO discriminator) Duplex offset 70.0 MHz Frequencies: TBD 10425 10495 1 10415 10485 2 10405 10475 3 10395 10465 4 Unmodulated RX Gunnplexer shall be the high side. At a single site, adjacent channels will need to be separated by polarization or space diversity. (eg even channels horizontal, odd vertical; or even channels North & Northwest, odd South & Southeast) Unused image frequencies will fall 10535 to 10565, with 2 and 3 straddling 10550. With normal link margin and video sync detection, this should not present any difficulty. OTHER SERVICES Weak signal cw and sideband is 10360 to 10380. Calling freq is 10368 MHz. Beacon K4MSK is coordinated for Lookout Mt, GA, grid EM85md. K4MSK transmits A1A on 10369.719 MHz, its status is unconfirmed at this time. 73 de N4YWK will.e.payne@lmco.com