[net.ham-radio] Need Help on Icom xmit delay

digger@zps.UUCP (Scott A. Miles) (09/18/84)

	The ICOM ht series radios have a characteristic of the 
	transmitter not unkeying exactly when you unkey the PTT
	switch. This causes a delay before the receiver comes
	back on. This is a problem when used with repeater
	telemetry that relays repeater status and such.

	Question ?? Does anyone know of a remedy to this ICOM
	characteristic?? I won't call it a problem because it
	probably doesn't affect everyone.


		Scott Miles  WB6PQM
		zehntel!zps!digger

jim@infoswx.UUCP (10/04/84)

My new Yaesu FT-209RH has the same problem after it 'warms up'. More
specifically, after being in QSO for several minutes the transmitter
tends to want to stay keyed for 0.5 - 1.0 seconds after the PTT switch
is released. What is really interesting about it is that it does this
only when 'warm', and only after speaking into the microphone (external
speaker/mic, too). Just keying and releasing the PTT switch won't make
it happen. The demo FT-209RH at the local ham emporium does not have this
problem. Anyway, my radio is currently at the Yaesu repair center in
California where the problem hopefully will be resolved. As soon as I find
out what the problem is, I'll post it to the net. Perhaps the phenomonon
in the Icom is similar to the Yaesu's and may have a similar cause.

73's,
Jim Gerke, KC5OA 
Infoswitch Corp.
Richardson, TX 
(214) 644-0570
allegra!convex!infoswx!jim