Re: APRSD

[Hamish Moffatt <hamish@debian.org>]

On Sun, May 29, 2005 at 09:38:08AM +0800, Peter Barrett wrote:
> I have set up a soundmodem on my woody gw server and hooked up the mic 
> input to spkr output of radio ie no tx capability at all.
> The idea is that the radio listenss on a VHF voice repeater and accepts 
> aprs such as pic-e packets appended to voice transmissions. Eventually I 
> would like to do this on HF but ya gotta start small 8*)
> By doing sethdlc sm0 I can see the packets from my pic-e being received 
> and decoded.
> I cannot figure exactly what the server is doing with them.
> I have observed some of my incoming tnc packets on findu.com 
> eventually.the latency is huge. Same if I log in with UIView.  I cannot 
> see them on any of my ports including 14579 or 14580 or in any of the logs.

Hmm. Your config looks ok. You should certainly see the packets on port
14580.

When in doubt, run 'listen -a' to see exactly what packets are being
received on the internet. aprsd should behave similarly.

> tncport sm0

That's only correct if you called it that in /etc/ax25/axports as well.
But I guess you must have because aprsd wouldn't start if the port was
wrong.

What is the source of the packets you are listening to? It won't
forward packets which came from an Internet->RF gateway already, so
as to avoid duplicate loops.

Getting off-topic a bit, I think aprsd is overkill for this application
and also for running a simple bidirectional igate. It tries to be both a
hub and a gateway in one but I'm not sure that it succeeds. Most of the
hubs are now running javAPRSSvr instead (non-free). I think you can run
it as a local gateway as well.

So I'm thinking about writing a simple gateway-only program. Not sure if
I'm going to find the time/motivation soon though. Any volunteers? :)

Hamish
-- 
Hamish Moffatt VK3SB <hamish@debian.org> <hamish@cloud.net.au>