See if it does the same thing with another radio that
has a built in decoder. Make sure the repeater isn't
muting tones, or muting PL on reception of DTMF. Make
sure the repeater PL input is directly on the
modulator, and not at a previous stage where it could
be getting clipped or limited in the presence of a
strong tone. Test to see if whistling will cause the
same problem as dtmf.
Joe
--- Paul Holm <[EMAIL PROTECTED]> wrote:
> I'm working on adding Echolink to our 2M machine (pl
> 146.2) here and am using a Kenwood TM-241 for a link
> radio. This rig does not have PL decode so we added
> an outboard Transcendient CDC-01 decoder board.
> Using the RX out pin off of the mic connector for
> discriminator tap. PL decode works great except
> when DTMF tones are sent through the repeater. As
> soon as DTMF is sent, audio from the decoder drops
> out. This is not happening when testing on a
> simplex frequency, only when sending DTMF tones
> through the repeater. Any ideas about what's
> happening? Thanks.
>
> Paul - KC�HST
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