[aprssig] APRS CSMA Settings

Robert Bruninga bruninga at usna.edu
Tue May 20 13:11:25 CDT 2014

That is TXD.  I am wondering about DWAIT default

-----Original Message-----
From: aprssig-bounces at tapr.org [mailto:aprssig-bounces at tapr.org] On Behalf
Of Andre
Sent: Tuesday, May 20, 2014 1:27 PM
To: aprssig at tapr.org
Subject: Re: [aprssig] APRS CSMA Settings

op 20-05-14 19:04, Robert Bruninga schreef:
> You are correct.  Digis (not on balloons or aircraft or the mountains
> surrounding LA) should wait for the channel to clear (not carrier
> squelch, but data-clear) and then transmit immediately (Dwait=0)
> whereas all other stations should have a Dwait... (hummh... of what???
What is the default?
> I hope it is not zero for every TNC out of the box?)
> Bob
If I remember correctly the default is 30 (300 ms) 5 more then the default
TXD of 25 (250 ms) Ofcourse this does not mean every tnc will start
transmitting after 300 ms if the channel is clear because the PPers check
has to pass as wel.

73 Andre PE1RDW
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