ACC FC-1 Remote Base Interface circuit

Posted on Feb 4, 2014

All of ACC`s repeater and remote base products support control of synthesized remote base transceivers. One form of frequency control supported is compatible with transceivers using thumbwheel frequency selection. The controllers supply BCD (binary coded decimal) formatted data in a serial bit stream, which may be captured by external shift regist

ACC FC-1 Remote Base Interface circuit
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ers to drive the transceiver`s frequency synthesizer, simulating the thumbwheel switches. The FC-l board may be used with the RC-850, RC-96, and RC-85 Repeater Controllers, the ITC-32 Intelligent Touch-Tone Control Board and ShackMaster. It provides the frequency control interface for the ICOM IC-2A/3A/4A (or AT) transceiver. With minor modifications, it will control certain other BCD format transceivers (such as the Icom IC-22U). In addition, it can recover expanded remote control output functions for several of the controllers. The applications include: The board is useful for controlling an IC-2A / 3A / 4A (or AT) with any ACC controller. It may be adapted for the other applications listed above, but in some cases it may be simpler to duplicate its circuitry or the circuitry in the controller manual in another format better suited to the application. It requires suitable construction equipment including a temperature controlled soldering station, and suitable test equipment such as a good meter or oscilloscope. It also requires relatively advanced construction and troubleshooting skills and an understanding of digital circuitry. ACC specifically disclaims responsibility for damage which may result to your transceiver. While the FC-1 may be modified to control a variety of BCD controllable transceivers, ACC has direct experience with only certain transceivers, as described in this note. We welcome your input on successful...

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