Garmin GNC 255 Installation Manual - page 94
GTR 225/GNC 255 TSO Installation Manual
190-01182-02
Page B-14
Rev. B
Example message:
$PGRMC1300100001
GTR/GNC is running and ready to accept serial input, Push-to-Talk is stuck on, and COM is locked to
121.500 MHz.
B.2.4.2.5 GNC Status
This message is sent to indicate to the host that the GNC is running and ready to accept data on the serial
port, along with the current status of alerts. It will be sent once upon startup, when requested by the host,
and when an alert’s status changes.
This message is only available in normal mode.
Message format:
“V” ..........................Message class. This is a VHF NAV message.
“41”.........................Message identifier.
a...............................VLOC needs Service; (ASCII) 0 = OK, 1 = Lateral course guidance not
reliable.
b ..............................VLOC Status; (ASCII) 0 = OK, 1 = VLOC and Glide slope course guidance
not available.
c...............................Glide Slope needs service; (ASCII) 0 = OK, 1 = Vertical course guidance not
reliable.
d ..............................Glide Slope Status; (ASCII) 0 = OK, 1 = Glide slope course guidance not
available.
e...............................NAV remote transfer stuck; (ASCII) 0 = OK, 1 = stuck.
Example message:
$PGRMV4100010
GNC is running and ready to accept serial input, and glide slope guidance is unavailable.