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[aprssig] Mic-E encoding on HF -- does generic SSID path GATE?

Robert Bruninga bruninga at usna.edu
Fri Aug 4 20:35:19 UTC 2006


>>> wa8lmf2 at aol.com 08/04/06 2:49 PM >>>
>Using Mic-E format on HF with NO PATH at all (i.e. "direct") and no 
>comment field (just lengthens the packet) is most likely of all to 
>succeed, since it creates the absolutely shortest possible packet.  

Very good advice!
And DIRECT with NO PATH is also a very good advice, since the GATE,WIDE idea
was back in 1994 before the APRS-IS and internet IGate
systems.  One had to be gated to VHF before anyone but other HF'ers
would see you.   Your point about it not being necessary if the objective
is to get into an IGate is excellent.  The added length of GATE,WIDE2-1
is just not needed.  (which is actually an additional 14 bytes) is very
high on a Mic-E packet that is only 23 bytes long in the first place.

Thanks


Bob, WB4APR






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