[aprssig] New Writeup On HF APRS Posted To My Website

[Ray Wells]

Stephen,

Good information.

Like Canada, Australia also has a vast interior with no VHF 
infrastructure. A not insignificant percentage of our major highways 
also have no VHF infrastructure, resulting in substantial use of HF, 
principally on 30m, but there is now also a 40m frequency receiving a 
bit of attention and success. The latter emerged as a result of one 
licence class not being permitted to use 30m.

Given the large number of HF Igates around the world, one could almost 
argue against the need for WIDE2-1 in a HF beacon. I regularly (almost 
daily) have two US stations in my heard list and I was gating a /MM 
station in the Caribbean a couple of years back. This morning I see 
WB9OTW, VE4GLS and EA8ADH-9 on my 30m port. I'm on the east coast of 
Australian between Sydney and Brisbane.

Ray vk2tv



Stephen H. Smith wrote:
> I have finally got around to doing the guide/essay/set-of-notes on HF 
> APRS operation that I have intended to to do for some time.
> It is posted on my website at:
>
>     <http://wa8lmf.net/aprs/HF_APRS_Notes.htm>
>
> ------------------------------------------------------------------------
>
> -- 
>
> Stephen H. Smith    wa8lmf (at) aol.com
> EchoLink Node:      WA8LMF  or 14400    [Think bottom of the 2M band]
> Skype:        WA8LMF
> Home Page:          http://wa8lmf.net
>
> JavAPRS Filter Port 14580 Guide
>  http://wa8lmf.net/aprs/JAVaprsFilters.htm
>
> "APRS 101"  Explanation of APRS Path Selection & Digipeating
>  http://wa8lmf.net/DigiPaths
>
> Updated "Rev H" APRS            http://wa8lmf.net/aprs
> Symbols Set for UI-View,
> UIpoint and APRSplus:
>
>
>
>
>
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