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

[Andrew Rich (Home)]

What freq ?

USB ?

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Andrew Rich
Airways Technical Officer Grade 4
Surveillance - RADAR ADS-B
Amateur Radio Callsign VK4TEC
email: vk4tec at tech-software.net
web: www.tech-software.net
----- Original Message ----- 
From: "Ray Wells" <vk2tv at exemail.com.au>
To: "TAPR APRS Mailing List" <aprssig at tapr.org>
Sent: Saturday, September 05, 2009 7:49 AM
Subject: Re: [aprssig] New Writeup On HF APRS Posted To My Website


> 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:
>>
>>
>>
>>
>>
>> _______________________________________________
>> aprssig mailing list
>> aprssig at tapr.org
>> https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig
>>
>
>
> _______________________________________________
> aprssig mailing list
> aprssig at tapr.org
> https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig


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