I've experienced the exact same issue as in your explanation.  I have an Alinco with a URI
simplex configuration that transceivers to a hub repeater linking repeaters in different towns.  
If rxondelay= xxx is set too high, the first word or two is chopped off.  Your issue may be
of a different nature, so I'd be interested to hear what your findings are.
JK  
From: Thor Wiegman <n7jct@aplaceonthe.net>
To: app_rpt-users@ohnosec.org
Sent: Tuesday, October 8, 2013 11:02 AM
Subject: [App_rpt-users] Transmit audio delay

Greetings:

I'm looking for the setting that controls the transmit audio buffer
prior to PTT.  What I'm experiencing is that I am sometimes missing the
first syllable or so because the radios haven't had time to "come up to
speed" before the audio is being delivered.  I need to adjust (increase)
the delay between when PTT is issued and when transmit audio is sent to
the radio.

Can anyone point me in the right direction please?

Thanks & 73
Thor
Operator of N7JCT
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