[OZAPRS] Fwd: [aprssig] Clueless HF Paths (Again)...

Gerard Hill vk2io at amsat.org
Thu May 26 14:09:37 EST 2011


I just wish Steve Smith would stop using the scattergun approach on 
fellow APRS operators. A couple of helpful emails is all that's 
required. There are guidelines at http://aprs.net.au/hf/aprs-hf for 
those who want to follow it up.

Cheers ... Gerard, VK2IO

On 26/05/2011 7:32 AM, Ray Wells wrote:
> Forwarded to ozaprs for those who don't subscribe to aprssig.
>
> Ray vk2tv
>
> -------- Original Message --------
> Subject: [aprssig] Clueless HF Paths (Again)...
> Date: Wed, 25 May 2011 09:37:16 -0700
> From: Stephen H. Smith <wa8lmf2 at aol.com>
> Reply-To: TAPR APRS Mailing List <aprssig at tapr.org>
> To: TAPR APRS Mailing List <aprssig at tapr.org>
>
> Just checked the log for my 30-meter HF receive system. These beacons
> came in
> overnight (Pacific Daylight Time):
>
> 2:Fm VP8DEU To APRS Via WIDE1-1,WIDE <UI pid=F0 Len=36 >[04:08:53]
> /110832h/EYCE%z8Rs&9_M/V Polar Bound
>
> 2:Fm VP8DEU To APRS Via WIDE1-1,WIDE <UI pid=F0 Len=36 >[04:10:58]
> /111039h/EY7^%z:gs --M/V Polar Bound
>
> 2:Fm VK3MY-4 To APRS <UI pid=F0 Len=50 >[06:33:30]
> !3751.54SG14518.28E& / APRS 10Mhz Net Station (2)
>
> 2:Fm VK3MY-4 To APRS Via GATE,WIDE <UI pid=F0 Len=73 >[06:33:33]
> )30m-GATE!3751.54SG14518.28E& APRS HF To VHF Gateway On 10.147.60Mhz USB
>
>
>
> Does VP8DEU (who is about 300 miles southwest of Hawaii) really expect home
> fill-ins digis on buoys in the middle of the Pacific ocean? All this
> path can
> possibly do is lengthen the packet and reduce the probability of being
> successfully received.
>
>
> VK3MY's claim to be on "10.147.600 MHz USB" is meaningless unless qualified
> with the audio tones his TNC is using. Not to mention that it needlessly
> lengthens his beacon, reducing the probability of being successfully
> received.
> Further, if you can successfully copy this claim, you are already on the
> right frequency -- this information is redundant.
>
> [The 10.147.60 MHz USB frequency IS correct --IF-- you are using standard
> KAM/TNC2 audio tones of 1600/1800 Hz..]
>
> See <http://wa8lmf.net/aprs/SSB_Frequencies.htm> for more details.
>
>
> -------------------------------------------------------------------------------
>
>
> --
>
> 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
>
> ===== Vista & Win7 Install Issues for UI-View and Precision Mapping =====
> http://wa8lmf.net/aprs/UIview_Notes.htm#VistaWin7
>
> *** HF APRS over PSK63 ***
> http://wa8lmf.net/APRS_PSK63/index.htm
>
> "APRS 101" Explanation of APRS Path Selection & Digipeating
> http://wa8lmf.net/DigiPaths


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