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The Simrad AR81 and AR83 Bearing repeaters have been designed to accept a variety of digital inputs that are sensed when first switching on the repeater. The AR81 is the single scale repeater and the AR83 is a dual scale Bearing repeater.
The Simrad AR81/83 Bearing repeater accept serial data (RS422). The D-type connector has pins allocated for power and serial data. The serial input is configured to recognize NMEA 0183 HDT, HDG and HDM sentence structures in priority order.
The Simrad AR81 and AR83 Bearing repeaters are designed to be mounted in a BB Repeater holder, MB repeater holder or BH repeater stand. The repeaters should be mounted where it is most convenient for the user, with regard to the unit’s environmental protection, temperature range and cable length. The unit should not be installed in area exposed to heavy vibrations. Avoid mounting the repeater where it is easily exposed to sunlight, as this will shorten the lifetime of the display.
Both the Simrad AR81 and AR83 Bearing repeaters are wheelmark approved for Simrad GC80/85 gyro systems.