[OZAPRS] APRS Tracker

[Howard Small]

Gee that's a bit harsh on Byon! Don't forget that even if you are 
listening you may not hear another rig transmitting - that is why we 
have digis...

Anyway, that has always been the case with packet radio - no one 
listens, it is done automatically  by received audio or carrier 
detection. Hence there will always be packets transmitted over the top 
of others. All you can stop is transmitting over the top of the digi and 
those within range of you.

Hence the (greater) problem of gates passing large volumes of traffic 
from the internet to RF blotting out the signals of (especially) hand 
held rigs. You can live in a regional area where there should be little 
traffic and find it nearly impossible to get your packet processed by 
the local digi as others on this forum well know!!

Actually I suspect the major cause of congestion is the broadcasting of 
position packets for no purpose other than seeing ones call sign on 
aprs.fi! If packets were restricted to those serving some useful purpose 
there is probably more than enough bandwidth even in densely populated 
areas.

Howard
VK4BS

On 29/11/2010 10:18, Gerard Hill wrote:
> The amateur regs have always stated that you should listen first 
> before transmitting. APRS shouldn't be any different.
>
> I expect the RTG is contributing to the severe congestion they're now 
> trying to overcome in the US on 144.39 MHz. Byonics should have called 
> it the Micro-Trak QRM.
>
> Cheers ... Gerard, VK2IO