Motorola GM300 Squelch Mod
By Barry Sloan, VE6SBS, Alberta, Canada

	Top Side of Radio Front is to the Left Remove 1.0 µfd 50V capacitor C76 (circled in red) to eliminate delayed squelch during reception of weak signals.
Motorola GM300 radios start adding delay to the squelch drop out time as received signal strength becomes less. Normally this is desirable to prevent squelch chatter when receiving weak signals. For link radio use however, as little squelch delay as possible is desired. To remove the squelch delay feature, in the GM300 radio, remove C76 (circled in red in above photo).

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This is a local (at www.repeater-builder.com) copy of the web page at http://www.sbszoo.com/ve6sbs/projects/gm300/index.htm, only because that site was down several times after I referred folks to it.   I decided to put a local copy here at repeater-builder just in case Barry's web site went away completly.

Photos, text and layout above the double line is Copyright © Barry Sloan, VE6SBS