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[aprssig] APRS Network Analysis

Andy Pritchard apritch at blueyonder.co.uk
Sat Sep 23 17:29:49 UTC 2006


Hi All

I have put together a quick UI-View32 addon to analyse the paths used on the 
APRS network and plot the analysis on UI-View32

http://www.apritch.myby.co.uk/networka100.zip

http://www.apritch.myby.co.uk/networka.jpg

What is interesting about the analysis is that the sample showed that in 
Europe [WIDE1-1,WIDEn-n] is used in 892 paths whilst [RELAY, TRACEn-n] is 
used in 429 paths.

What is most concerning about this is in Europe most digipeaters do not 
implement UITRACE on the WIDEn-n (it's on TRACEn-n)

Because of this we need to inform our users to stop using WIDE and WIDEn-n 
in there paths and to make use of the default TRACEn-n functionality built 
into our European APRS network

Snapshot details:

******************
***EUROPE***
******************

http://www.apritch.myby.co.uk/temp/eu.jpg

2627  Total Stations

160   RELAY, WIDE, TRACE, WIDEn-n, TRACEn-n
20    RELAY, WIDEn-n, TRACEn-n
429   RELAY, TRACEn-n (EU Nirvana)
99    RELAY, WIDEn-n
137   WIDEn-n, TRACEn-n
892   WIDE1-1,WIDEn-n (USA Nirvana - IF Traceable)

1103  WIDEn-n
669   TRACEn-n
232   RELAY
316   WIDE
61    TRACE
29    WIDE1-1

******************
******USA******
******************

http://www.apritch.myby.co.uk/temp/usa.jpg

2589  Total Stations

40    RELAY, WIDE, TRACE, WIDEn-n, TRACEn-n
0     RELAY, WIDEn-n, TRACEn-n
13    RELAY, TRACEn-n (EU Nirvana)
18    RELAY, WIDEn-n
0     WIDEn-n, TRACEn-n
1196  WIDE1-1,WIDEn-n (USA Nirvana - IF Traceable)

1095  WIDEn-n
14    TRACEn-n
57    RELAY
178   WIDE
0     TRACE
125   WIDE1-1

Andy, M0CYP - Telford
http://www.apritch.myby.co.uk/uiview.htm
http://www.apritch.myby.co.uk/radioprop.htm






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