• He mention users are with marine radios, they do not have PL encoders.........


    >Subject: Re: [Repeater-Builder] repeater..activate without tones


    >  That would be ok ... until some user came on with the wrong tone.
    > We had a controller of that type some 20 years ... had to modify  that when users started to use a CTCSS tone on their transmitters.

     > On occasion, we found the repeater was turned off - so we turned  it back on.  After the modification we had installed, that problem  went >away.

    >  Neil


    >
    > How about using a subaudible tone "PL" decoder to activate a flip-flop
    > circuit that switch on-off the PTT line??
    >
    > Juan XE2SI
    >








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