[OZAPRS] European v USnewparadigmand pathlimiting +confusion....

[Andrew McDade]

I guess the question we need to ask, is whether 2 hops will allow ALL aprs

stations within Australia to reach an Igate reliably.

 If we have a situation where all stations can hit an Igate in 2 hops or 
less then well and good, WIDE2-2 is definitely the way to go. But if there

are still some areas that require 3 hops to achieve this, then where are
we 
with regards to a standard, default, documentable, promotable Nation Wide 
config for general APRS users.

I would hate to see a situation where we've got different default configs 
for different areas ie. WIDE2-2 for some areas and WIDE3-3 for others. I 
think this would be a regressive step.

So the question again , are there any areas within Australia that require
3 
( or more ) hops to reliably access an Igate ?

Regards .. Andrew .. VK5EX


----- Original Message ----- 
From: "Tony Hunt" <wavetel at bigpond.com>
To: <ozaprs at aprs.net.au>
Sent: Thursday, November 09, 2006 8:12 PM
Subject: Re: [OZAPRS] European v USnewparadigmand pathlimiting 
+confusion....


> Whats this idea I see of WIDE3-3 for home stations?? Currently we
recomend
> and use predominantly WIDE2-2 in Adelaide .. If we use WIDE3-3 then we 
> will
> cross the border to Mildura and Ouyen .. Is there any need for this many
> hops if all satations are within 2 hops of an Igate ?? WIDE3-3 will just
> increase the amount of traffic in our situation and likely insure alot
of
> VK3 traffic right through to Pt Linclon instead of just the occasional
bit
> here and there..
>
> Or are we going to recomend WIDE3-3 and then Trap the last hop in the 
> digis
> which is one approach..
>
> Ive seen this WIDE3-3 mentioned a couple of times now and thought it
must
> have been a typo at first ..
>
> Also 50 stations within 50miles of Adelaide.. I concur with Terry.. We 
> must
> be on a different map or planet to Bob .. Our Igate shows about 15
locals
> presently which is about normal
> http://121.44.67.103:14501/
> There are 23 VK5s currently listed on my Client here some of which are
via
> the Igate and not on RF..
>
> There are about 40 listed here but about 1/2 of them are over a day old 
> with
> no recent posits.
> http://www.findu.com/cgi-bin/find.cgi?vk5*
>
> 50 Stations!! I gota to see that .. Talk about rush hour in Adelaide..
We
> are just an oversized country town here and pleased to be that way..
>
> Melbourne is the traffic worry on 2m APRS from what Ive experienced..
>
> Tony  Hunt  VK5AH
>
> ----- Original Message ----- 
>> Your thoughts Richard 3JFK too please.
>>
>> Regards,
>> Ron
>>
>> On Wed, 2006-11-08 at 11:06 +0800, Chris Hill wrote:
>> > Hi All,
>> >
>> > May I suggest the following "KISS" outcome for APRS in VK:
>> >
>> >
>> > 1.  Mobiles set path to "APRS v WIDE1-1,WIDE2-2"
>> >
>> > 2.  Home users set path to "APRS v WIDE3-3"
>> >
>
> Bob Said
>
>> Boy was I wrong.  I just zoomed on the first call I saw and
>> found that even Adelade is probably just about optimally loaded
>> and cannot afford much coming in from say Melbourne without
>> having some impact on throughput.  I see 50 stations within 50
>> miles of Adelade and that is about as high as you want to go
>> without losing reliability for small trackers.
>>
>> Then I zoomed in on Melbourne and see that it is as dense as
>> some of our highest density cities in the USA!  We use WIDE2-2
>> in those areas...
>> (see MAP on http://www.ew.usna.edu/~bruninga/aprs/fix14439.html
>>
>> Seeing these maps, I now am convinced that you are on the right
>> track to implement the New-N paradigm measures to help improve
>> the reliability of local area APRS.  And since these population
>> densities seem quite well focused with big gaps inbetween, then
>> it does make sense to limit the WIDEn-N hops so that mobiles in
>> one area are not QRMING long distances away to the other
>> areas...
>>
>> Great work!
>> Bob, Wb4APR
>>
>
>
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