User's Manual Part 1

15
Interpreting the diagnostics aids:
Use the Receive icon, Signal strength bar and Monitor window to help diagnose
installation problems and/or as a check that your NAV-7 is working correctly.
Receive
icon
Signal strength
bar
Monitor
window
Comments
OFF No new chars
being received
No current NAVTEX
transmission
OFF No new chars
being received
Local in-band interference
present, or NAVTEX station
transmitting un-modulated RF
Set monitor source
to 518 kHz
Correct operation, NAVTEX
data will be shown in monitor
window
Setup mode: system options
The Setup mode: system options page contains general information about
the NAV-7 and allows control over several aspects of the user interface and
external interfaces.