The ATR 600 COM Transceiver consists electrically of five sections: Receiver transmitter board, AF Stage board, Antenna board, display circuitry, and the microprocessor board. The ATR 600 operates at 14VDC and features typical 6 Watts of transmitter power. It can also be operated down to 9VDC with reduced RF power (emergency operation).
The ATR 600 has 25KHz receiver selectivity, and operating ranges of 118. 000 to 136. 975 MHz. It is designed as a single block unit with 57 mm diameter for instrument panel or console mounting. The ATR 600 has the capability of programming up to 100 memory channel frequencies for later recall. Each frequency can be given a name of 8 characters.
The unit also has the capability to store a data base for the whole of Europe. A fast access method enables one to find quicly any frequency by name. The data base is an add on feature and not a basic function of the ATR-600. If it is not installed or it has been erased by a special setup the ATR- 600 operates like any standard COM radio using an active and stand by display pattern. The only additional feature is the user memory and the possibility of adding names.
To prevent accidental long term transmission the transmitter automatically turns off after two minutes (for example, when a TX button becomes stuck ON).