Spectra Engineering Pty Ltd, Australia - Manufacturer of MX800 MX920 and MX921 Base Stations and Repeaters mx800, mx920, mx921, base station, automatic changeover unit, MX800 P25, APCO, APCO25, APCO P25, P25 Repeater, P25 ,Digital repeater, duplexers, spectra engineering, spectra, repeater, repeaters, base station, basestations, mobile, system, radio repeaters, repeater radio, receivers, receivers, radio, 13.8v, power supply, 2ru, 3ru, desktop repeater, rf transceiver, rack mount, frequency, powersupplies, power supplies, radio installations, wireless, communication, mx 800, mx 920, mx921, acu, duplexer, receiver, transmitter, software, mx tools, mxtools, radio manufactured, research, development, tranceivers, trunking, 15amp, 20amp, 15a, 20a, rack, dc power supply 13.8v/20a, technology, communications, antenna, tower, analog radio, australia radio, conventional radio, land mobile radio, mobile two-way radios, private mobile radio, public access mobile radio, radio encryption, radio exciter, radio microphone, cb, marine, tranciever, reciever, air, boat, crs, uhf, amateur, land, mobile, airband, aviation, avionics, perth, australia Manufacturer of high performance rack mountable MX800, MX920 and MX921 Radio Base Stations and Repeaters. Also supplies 2RU rack mounted 13.8V DC power supplies. Based in Australia.