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CAT PTT Release

Running new version of VarAC with an Icom IC-7300. Sometimes, CAT PTT drop signal is not properly received by the 7300 which stays in keyed mode with no audio input.

4 comments

4 Comments

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W6LVP

Jul 21

Since doing this to the 7300 CAT config, I haven't had a problem:

CI-V address - 94h
CI-V Transceive - Off
CI-V USB Port - Unlink from REMOTE
CI-V USB Baud Rate - 19,200. I use 115,200, but use 19,200 for starters as that is what flrig defaults to. Response will be a bit quicker with higher rates, but it will do well at 19,200 also.
CI-V USB Echo Back – On

which is from this:

http://www.w1hkj.com/flrig-help/ic7300_how_to_page.html

irad d

Jul 22

Replying to

I am not sure this will do any effect. I do have a version for you to test with your previous config to see if it solves your problem. If you are interested, send me an email and I'll send you a download link.

73s

irad d

Jul 20

This is usually due to lack of CPU resources on the PC at the moment the PTT command was sent. As VarAC fires a lot of CAT commands due to the nature of the mode.

questions:

1. Does it happens upon first connection with a station ?

2. Do you have limited CPU resoruces on your PC ?

73s!

Irad

W6LVP

Jul 21

Replying to

It happens randomly. I don't remember seeing at a first connection. I do not have limited PC resources. CPU usage is generally about 10 to 15%. I do have a work around. Pressing the TRANSMIT button on the upper left of the 7300 will terminate the transmit. I am running 19,200 baud serial connection. Would slower or faster make difference?