VAL Avionics NAV 2000 Operator's Manual download pdf (Page 25)

V A L A V I O N I C S L T D

N A V 2 0 0 0 N A V I G A T I O N S Y S T E M

I N S T A L L A T I O N A N D O P E R A T O R ’ S M A N U A L

Pre-Release Issue Page 25 of 29

Sept. 2013

$PMRRV34310<chksm><CR><LF>

Set the OBS value to 310 degrees.

COM V

OLUME AND

QUELCH CONTROL

This message is used to adjust the volume and squelch levels of the COM unit

Message format:

"V" ..................... Message class - VHF NAV Message

"71" .................... Message Identifier

"vs" .................... Volume level and Squelch Level:

v = Desired volume level in encoded hexadecimal, where v =

desired level + 0x30 with a range between 0 - 20, 0 being

muted

s = Desired squelch level in encoded hexadecimal, where s =

desired level + 0x30 with a range between 0 - 20, 0 being off

Example Message:

$PMRRV71;?<chksum><CR><LF>

This example command would set the volume level at 11 and the squelch at 15.

COM M

AIN AND

IDETONE CONTROL

This message is used to adjust the volume and squelch levels of the COM unit

Message format:

"V" ..................... Message class - VHF NAV Message

"72" .................... Message Identifier

"ms" ................... Volume level and Squelch Level:

m = Desired mic gain level in encoded hexadecimal, where m =

desired level + 0x30 with a range between 1 - 20

s = Desired sidetone level in encoded hexadecimal, where s =

desired level + 0x30 with a range between 1 - 20.

Example Message:

$PMRRV72;?<chksum><CR><LF>

This example command would set the mic gain level at 11 and the sidetone at 15.

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VAL Avionics NAV 2000 Operator's Manual Page 25