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Re: Digipeater filter rules
Angus Ainslie
Hi Kenneth,
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Thanks fro the ideas with APRX. With the digipeaters in my area I don't ever see the packet fratricide that was described in the link. I'm my case I think it would be sufficient to delay 100 milliseconds and then a clear channel as the packet is either digipeated immediately or not at all. With APRX running on the kiss interface it probably can't do clear channel detection. Can it do subsecond delays ? Angus -------------------------------------------- On Sun, 1/22/17, Kenneth Finnegan KennethFinnegan2007@... [direwolf_packet] <direwolf_packet@...> wrote:
Subject: Re: [direwolf_packet] Re: Digipeater filter rules To: direwolf_packet@... Date: Sunday, January 22, 2017, 10:15 AM ? On Sun, Jan 22, 2017 at 6:12 AM, wb2osz@... [direwolf_packet]?<direwolf_ packet@...>?wrote: As far as I know there has been only one implementation. And that implementation is the one I now maintain, Aprx:?. com/aprx/ Some of the old guard APRS developers don't like it, but the situation that Bob describes in the linked thread where he wants digipeaters to all have PWAIT=0 and walk over each other rarely happens anyways due to poor documentation / his packet fratricide theory lacking universal support, so I have lots of users who run viscous delay and are very happy with the reduced load on their local network / reduced transmit duty cycle on their digi (particularly users who suffer desense on their home base station). I believe you can use Direwolf to expose a KISS socket for Aprx, then you add a "viscous-delay 5" line in your digipeater config. It will queue every digipeated packet for 5-7 seconds checking for any echos from other digipeaters before transmitting it. It's impact on the local transmitter can be seen here:? PhirePhly/aprx/blob/master/ ViscousDigipeaterTxEffect.png If you have any questions about setting up Aprx, you can post them on our forum here:?. com/forum/#!forum/aprx- software -- Kenneth Finnegan, W6KWF . com/ #yiv6957833027 #yiv6957833027 -- #yiv6957833027ygrp-mkp { border:1px solid #d8d8d8;font-family:Arial;margin:10px 0;padding:0 10px;} #yiv6957833027 #yiv6957833027ygrp-mkp hr { border:1px solid #d8d8d8;} #yiv6957833027 #yiv6957833027ygrp-mkp #yiv6957833027hd { color:#628c2a;font-size:85%;font-weight:700;line-height:122%;margin:10px 0;} #yiv6957833027 #yiv6957833027ygrp-mkp #yiv6957833027ads { margin-bottom:10px;} #yiv6957833027 #yiv6957833027ygrp-mkp .yiv6957833027ad { padding:0 0;} #yiv6957833027 #yiv6957833027ygrp-mkp .yiv6957833027ad p { margin:0;} #yiv6957833027 #yiv6957833027ygrp-mkp .yiv6957833027ad a { color:#0000ff;text-decoration:none;} #yiv6957833027 #yiv6957833027ygrp-sponsor #yiv6957833027ygrp-lc { font-family:Arial;} #yiv6957833027 #yiv6957833027ygrp-sponsor 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