[aprssig] RADIO paths in APRS Servers

[Andrew Rich (Home)]

When I started in Ham Radio we had digis that only had a callsign

I could quite happilly direct a packet "via" a chain of digis I knew to get 
to a friend.

Then came the advent of Alias - or a generic call that digis could adopt so 
you could drive around and hit any one of them.

I just hope in the "noise" of progress, we don't do away with the ability to 
be able to discern what digis , or more importantly, have the ability to 
pick, which digis we go via.


----------------------------------------------------------
Andrew Rich
Amateur Radio Callsign VK4TEC
email: vk4tec at tech-software.net
web: www.tech-software.net
----- Original Message ----- 
From: "Steve Dimse" <steve at dimse.com>
To: "TAPR APRS Mailing List" <aprssig at tapr.org>
Sent: Friday, August 07, 2009 10:15 PM
Subject: Re: [aprssig] RADIO paths in APRS Servers


>
> On Aug 7, 2009, at 12:02 AM, Pete Loveall AE5PL Lists wrote:
>
>> APRS servers and IGates do -not- strip the RF path on packets gated
>> from RF to APRS-IS.
>
> But some of the other things he talks about are true. The path
> statement of a packet cannot tell you the RF path, nor can it tell you
> the Internet path. There are usually some pieces of information that
> can be gleaned, but the complete path rarely appears, and you can
> never rely on it. This is intentional. The focus of APRS is getting
> the data where it belongs; the RF and Internet networks are designed
> to accomplish the transport, not to provide a traceback.
>
> This is the reason findU, the APRS IS, and the RF network provide
> limited information about propagation and network configuration. When
> you hear someone making claims for producing network maps or analysis,
> look closely at the assumptions being made, they are often not valid.
>
> Steve K4HG
>
>
> _______________________________________________
> aprssig mailing list
> aprssig at tapr.org
> https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig


--------------------------------------------------------------------------------



No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.5.392 / Virus Database: 270.13.45/2286 - Release Date: 08/06/09 
18:17:00