NØGZZ>GPS,A*,TRACE4-3: <UI>:5
NØGZZ>GPS,B,A*,TRACE4-2: <UI>:5
NØGZZ>GPS,C*,TRACE4-3: <UI>:5
NØGZZ>GPS,B,C*,TRACE4-2: <UI>:5
NØGZZ>GPS,A,C*,TRACE4-2: <UI>:5
NØGZZ>GPS,B,A,C*,TRACE4-1: <UI>:5
NØGZZ>GPS,C,A*,TRACE4-2: <UI>:5
NØGZZ>GPS,B,C,A*,TRACE4-1: <UI>:5
NØGZZ>GPS,A,B*,TRACE4-2: <UI>:5
NØGZZ>GPS,C,B*,TRACE4-2: <UI>:5
NØGZZ>GPS,A,C,B*,TRACE4-1: <UI>:5
NØGZZ>GPS,C,A,B*,TRACE4-1: <UI>:5
NØGZZ>GPS,C,B,A*,TRACE4-1: <UI>:5
NØGZZ>GPS,A,B,C*,TRACE4-1: <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 digis first, decrementing the
TRACE address to TRACE4-3; however, it does not digi again until nine UI
frames later, when it repeats a digi from A and decrements TRACE to
TRACE4-2. Since there are only three digipeaters in our example system,
TRACE4-1 is the last digi address noted.
Configuring Digis for HF/VHF Gateway Operations
+
This example assumes the use of at least one multi-port TNC that supports both
HF and VHF operation at the same time.
In this example, we demonstrate cross-band (gateway) digipeating, using selected
Kantronics TNCs. A UI frame is launched on HF and repeated on VHF four
times. A KAM Plus and two KPC-3 Pluses (with call signs C, B, and D) are con
-
figured as digipeaters and another KAM Plus (call sign A) is set to launch a UI
frame from its HF port. The digis are configured with an alias of FLOOD and
UIDWAIT is set ON. In addition, MYGATE for digi C (the KAM Plus) is set to
C-3 and its UIGATE is set ON/OFF; that is, it is enabled to digi from HF to VHF
but not from VHF to HF. The KAM Plus, with call sign A, is then used to initiate
Packet Modes of Operation GPS NMEA Interfacing Capability
User’s Guide 194 KAM’98 v 8.3
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