NASA Marine Target navtex V2.0, Инструкция по установке и эксплуатации

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From here holding the ENTER key depressed for three seconds will
take you to the PROGRAM screen. From here you can program
INTERNATIONAL stations by pressing UP. You can now use the UP
key to flip the case of the STATION ident letter. Stations with upper
case ident letters will be stored, those with lower case ident letters
will be ignored. Use the DOWN key to roster through all the station
ident letters. Pressing ENTER will then allow you to program
NATIONAL stations in the same way. Remember each station has a
different ident letter for international and national transmissions.
Once you have completed station programming press ENTER to exit.
You can now program the message types you want to receive in a
similar manner to programming stations. Press the DOWN key to
program message types. Use the UP key to flip the case of the
message ident letter you want to receive then use the DOWN key
to roster through all the message types. When you have completed
message programming press ENTER.
You now have the choice of clearing all the stored messages by
pressing UP and DOWN together or going to the OPTIONS screen
by pressing ENTER. From this screen you can view the signal
spectrum by pressing UP and DOWN together. This feature is useful
for fault diagnosis. From the OPTIONS screen two presses of the
ENTER key will return you to receiving messages on the STANDBY
screen.
From the STANDBY screen you can change the operating channel
by pressing UP and DOWN keys together. Remember the
international channel is in English where ever in the world
you may be whereas the national channel will be in the local
language.