[aprssig] Re: Why use this path?
bruninga at usna.edu
Tue Aug 30 17:13:04 CDT 2005
Appears no one reads the original HF.TXT when
operating APRS anymore. This guy is absolutely
clueless. He is violating every rule of APRS HF:
1) Never put anything more than 1 VHF hop
after the gate. (this keeps HF qrm from a
gateway to its own area, for local management)
2) Never use ECHO except in times of emergency
or priority. It just cuts channel capacity in HALF!!!
3) Never plan on going from HF to VHF and back
4) The only path ever receommended was VIA GATE,WIDE.
These days, the correct equivalen is VIA GATE,WIDE1-1.
>>> wa8lmf2 at aol.com 08/30/05 4:34 PM >>>
kb4ytm at gmail.com wrote:
> I'm not sure I understand this path. It comes from a ham in Maine (yes
> Maine) and I see it lots down here in Tennessee. Now I'm sure its
> being gated from an Igate closer to me, but still, I dont really WANT
> to see these packets. I have sent messages but no answer. I have seen
> him 22 times today at my home QTH using this path. In looking at
> findu.com for stations near this ham, it seems a lot of users have his
> callsign in their paths also.
> Maybe someone can explain why this path is being used.
It's a clueless user on HF. He's probably beaconing on 10.149 . ECHO
is the HF equivalent of "RELAY" . "GATE" tells a receiving station with
a dual-port HF/VHF TNC to retransmit the packet on VHF. WIDE3-3 is the
usual VHF path.
The upshot of this is that IF the HF ECHO succeeds (and that is very hit
and miss given the variable propagation on HF), he is then
simultaneously entering numerous local VHF nets over a radius of
1000-1500 miles (depending on HF propagation). He is then creating
needless QRM and clutter for a radius of three hops around each of these
VHF entry points.
The ultimate irony is that probably no one is even seeing him since most
of the "victims" probably have their maps zoomed to show a city or
county level area. Thus a station from 500-1500 miles away would be way
outside their map's view anyway.
Normally, if your goal is to be seen on findu, you DONT NEED ANY PATH
AT ALL on HF !! There are numerous igate stations monitoring HF
directly that will insert you straight into the Internet system without
cluttering dozens of VHF nets simultaneously. And you will get there
much more consistently than you do using long paths that just lengthen
the packet and reduce the likelyhood of a successful decode.
30M HF APRS as heard live from Pasadena, CA :
Stephen H. Smith wa8lmf (at) aol.com
EchoLink Node: 14400 [Think bottom of the 2M band]
Home Page: http://wa8lmf.com
"APRS 101" Explanation of APRS Path Selection & Digipeating
Updated APRS Symbol Chart
New/Updated "Rev G" APRS http://webs.lanset.com/wa8lmf/aprs
Symbols Set for UI-View,
UIpoint and APRSplus:
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