[Milsurplus] VRC-12 RT-246

Ray Fantini RAFANTINI at salisbury.edu
Sat May 28 11:11:09 EDT 2016


What is the issue with trying to locate the schematics for the RT-246 (The push button VRC-12) transceiver? I have downloaded several different TM that are all in the six hundred pages with procedures, part list and exploded views but not a signal schematic. The RT-246 that I picked up in Dayton is suffering low sensitivity on all bands requiring 10 to 15 micro volts for full quieting and looking at the manuals it rates the receiver of being 0.5 micro volts for 10 Db SINAD so somehow I am missing about 20 Db of gain in the receiver. Think there is a protection circuit in the receivers front end and being that low sensitivity is the same on all bands suspect that is where the issue is, also noticed that the tone squelch is not working so want to also resolve that but not having a schematic is an issue.

Ray F/KA3EKH

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