PTT problem II

From: Vittorio Vallero (kfsmurqh@nelonen.fi)
Date: Fri Apr 30 2004 - 14:13:34 EEST

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    Maybe my previous post needs some more clarification.
    The interface I am using is a home-made opto isolated
    one on PTT circuit and electrically isolated on the
    audio in and out via transformers.
    This setup perfectly works using, i.e. MixW on windows
    XP.
    Thanks again

            

            
                    
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    attached mail follows:

    Hi all,
    I Have a problem with the PTT on the serial port
    /dev/ttyS0.
    The PTT (RTS etc) line goes high
    as soon as soundmodem (gmfsk as well) is loaded or the
    soudnmodeconfig utility is put into
    diag mode.
    It is resolving packets perfectly on RX and it makes
    the right TX noises.
    Only the PTT is the problem.

    I am running Slack 9.1 with kernel 2.6.4

    Any help is appreciated
    Thanks
    73 Vittorio IK1RAC

            

            
                    
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