[arm-allstar] anti-kerchunker

[Doug Crompton]

Tom,

 This was discussed when version V1.5.3-38 came out and a negative value
was added to rxondelay. Here is what was stated -

An option has been added to the rxondelay command in simpleusb-tune-menu.
If the delay number is negative the delay time is only applied if the node
has transmitted
(PTT asserted)
prior to cos. This avoids the issue of the delayed cos causing a cut- off
of the beginning of a transmission when the node receives cos but that cos
is not immediately after a transmission from that node.  rxondelay values
are 20ms increments. Example:  rxondelay=10  is a 200ms delay with the
delay added regardless of transmit state. rxondelay=-10 is a 200ms delay
but only after a prior transmission.
rxondelay is the 'm' option in simpleusb-tune-menu. Unless you have a need
for this feature leave it at the '0' setting. Values can range from -100 to
+100. It now uses the hi-res timing so delay timing is accurate. rxondelay
is often used to eliminate keying loops when used with a repeater and for
"kerchunk" (very short keyup) elimination.

So yes you can set rxondelay to avoid COS responding to short keyups.
Setting the value too high though will cutoff the beginning of real
transmissions. It is 20ms steps so a start point of 5 - 100ms might be good.



*73 Doug*

*WA3DSP*

*http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*

On Mon, Sep 24, 2018 at 1:24 PM "Tom Eaton via ARM-allstar" <
arm-allstar at hamvoip.org> wrote:

> Is there any place to set cor delay on input as n anti-kerchunker?
>
> Thanks
> Tom
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