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    W6LVP
    Jul 20

    CAT PTT Release

    in Bug reports

    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.


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    W
    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


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    I
    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

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    I
    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

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    W
    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?

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    4 comments
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