974-72007001/1.0 1007D Altimeter Operators Manual
Page 22 Telemetr
Kongsberg Mesotech Ltd.
Port Coquitlam, BC - Canada
lll = signal level (0…255), output only
in fixed gain modes
x.x = range in meters, feet, or fathoms
(no leading or trailing zeros); blank
field indicates no return was received.
Only the range units currently selected
will be filled.
Hh = NMEA ASCII hex value of the 8-
bit checksum of the exclusive OR of
all characters after '$' and before '*'.
4.2.2 Downlink Messages
The following table of ASCII strings are recognized in 809
mode. Those designated as "new" are not part of the original
809-telemetry specification and generate a CRLF-terminated
echo in acknowledgment.
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