Table B-3 Input Message Summary; Table B-4 Output Message Summary - Garmin GTR 225 Installation Manual

Class Ident
Set Active COM Frequency and
C 00
Transceiver Function
Set Standby COM Frequency
C 01
and Transceiver Function
C 02 Set COM Audio Items
C 06 Request COM data
V 24 Request Data Output
Set Active VOR/LOC Frequency
V 27
and Receiver Function
Set Standby VOR/LOC
V 28 Frequency and Receiver
Function
V 31 Set NAV Audio Mode
V 34 Set OBS Value
Notes Class: "C" = GTR/GNC COM message, "V" = GNC NAV message.
Class Ident Description
V 20 Reset Status
V 21 CDI, VDI and Flags
V 22 Decoded OBS setting
V 23 Radial From Active VOR
V 25 Decoded Station Identifier
V 27 Communications Error
V 28 NAV Receiver Status
V 29 NAV Audio Mode
V 35 Comm Transceiver Status
V 36 Comm Software Version
Length is in bytes and includes the "$" start of message character and the <CR><LF> end of message
Notes
sequence.
190-01182-02
Rev. F

Table B-3 Input Message Summary

Description

Table B-4 Output Message Summary

Length
Response
COM
Transceiver
Status
COM
Transceiver
Status
COM Audio
Status
GTR/GNC COM
Status
GNC NAV
Status
NAV Receiver
Status
NAV Receiver
Status
NAV Audio
Mode
Output Rate
12 At startup / Upon request
18 High
16 High
17 High
18 Low
13 When error detected
17 status change / Low
Upon request / status
13
change
18 status change / Low
17 Upon request
GTR 225/GNC 255 TSO Installation Manual
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