In article <200003170356_MC2-9D72-CEF@...>, Brian Davies
<brian_j_davies@...> writes
From: Brian Davies <brian_j_davies@...>
Message text written by INTERNET:ui-view@...
Fixed stations should NOT use RELAY anywhere in the path (execpt
in exceptional circumstances) because this will generate a LOT of
QRM. This happens because EVERY station should respond to RELAY.
<
Hi All
I'm confused! Not difficult to do that I hear you say! I was recommended
to use RELAY, WIDE...................
Brian, the generally accepted path (throughout the world) for MOBILE,
repeat MOBILE, stations is to have RELAY as the first digi callsign in
the UNPROTO path, and all FIXED stations should have at least one
*ALIAS*; i.e. RELAY. Thus when a mobile passes in range of any fixed
station anywhere, the mobile's signal will be relayed by the fixed
station.
Regarding any digi callsigns following RELAY in the MOBILE's UNPROTO
path, most people (throughout the world) seem to use WIDE, but that
isn't obligatory. It depends on the network around the fixed station --
if there isn't another station in range of the fixed station that
recognizes WIDE, the mobile signal won't get any further.
Don't confuse a FIXED station's ALIAS(es) with its UNPROTO digi path.
The ALIAS(es) specify what callsigns it is *listening* for. The UNPROTO
path specifies the path it *transmits* to. The UNPROTO path of a FIXED
station should not contain RELAY (for the reasons mentioned by the other
person above).
Hope this helps :-))
73
Ian, G3NRW
Technical Editor, APRS Protocol Specification
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