Here, three digis, with MYCALLs of A, B, and C, are configured with aliases of
RELAY, WIDE, and TRACE (using UIDIGI); and UIDWAIT is set ON. For ex
-
ample station A’s UIDIGI aliases are set as follows:
cmd: UIDIGI ON RELAY, WIDE, TRACE
The reporting station path is then set to GPS via RELAY, WIDE, TRACE, and a
UI packet is launched.
Any one of the stations monitoring will then display the resulting action as fol
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lows:
cmd:NØGZZ>GPS,RELAY,WIDE,TRACE: <UI>:5
NØGZZ>GPS,B*,WIDE,TRACE: <UI>:5
NØGZZ>GPS,A*,WIDE,TRACE: <UI>:5
NØGZZ>GPS,B,A*,TRACE: <UI>:5
NØGZZ>GPS,A,B*,TRACE: <UI>:5
NØGZZ>GPS,C*,WIDE,TRACE: <UI>:5
NØGZZ>GPS,B,C*,TRACE: <UI>:5
NØGZZ>GPS,A,C*,TRACE: <UI>:5
NØGZZ>GPS,B,A,C*: <UI>:5
NØGZZ>GPS,A,B,C*: <UI>:5
NØGZZ>GPS,C,A*,TRACE: <UI>:5
NØGZZ>GPS,B,C,A*: <UI>:5
NØGZZ>GPS,C,B*,TRACE: <UI>:5
NØGZZ>GPS,A,C,B*: <UI>:5
NØGZZ>GPS,C,A,B*: <UI>:5
NØGZZ>GPS,C,B,A*: <UI>:5
All digis hear the first UI frame and store it. Due to the setting of UIDWAIT,
some stations may wait longer than others to digipeat; hence, when they do, they
may have several frames stored up - for example, the original and a digipeat from
another station. Trace station B as an example. It digipeats the original UI frame
from the “reporting station,” swapping its MYCALL for RELAY (B) and mark
-
ing it (*), then repeats a frame from A and one from C, and, finally, repeats two
more (from A,C and C,A) — a total of five! Note that each repeater digis five
times so the total number of digipeated packets is 15!
Packet Modes of Operation GPS NMEA Interfacing Capability
User’s Guide 192 KAM’98 v 8.3
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