The Interop-4 was designed for portable repeater and interoperability needs for the field on a rapid deployment basis. The Interop-4 houses up to four radios of any radio band from almost any radio manufacturer that supplies a dash mount radio. Repeat capability is possible with Lo-Band, VHF, and UHF radio bands. Links to 700, 800 & 900 Mhz. systems is possible via the appropriate radio.

The system is simple to operate. With antennas deployed, power the unit up, power up the radios in the appropriate band, select the channel/frequency, press the appropriate radio enable button and press the system enable button and your connection is made. The RC-400 & RC-220 controllers also allow remote DTMF enable and disable per radio to activate an individual radio, or for the entire system.

The Interop-4 runs on a 30 amp external power supply/battery charger, with an internal 26 amp battery for back-up and can be daisy chained to multiple external batteries, shore power, generator, or solar panels for long-term operation.

The radios are modular, so a radio can be swapped in the field for rapid field repair, or configuration change. RF output levels are 10-50 watts, and duty cycles vary depending on the RF level selected. Internal, or external duplexers are available, or antenna configurations utilizing vertical separation are also available and very practical.

The RC-400 & RC-220 controllers pass audio, so P-25, or analog radios can be used, or linked together. Trunking formats are also accommodated. Interface to the Mobile Satellite Ventures (MSV) system is also possible via an internal, or external interface.