[aprssig] Clueless HF Paths (Again)...

Stephen H. Smith wa8lmf2 at aol.com
Wed May 25 12:37:16 EDT 2011


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.


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Stephen H. Smith    wa8lmf (at) aol.com
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