V A L A V I O N I C S L T D
I N S 4 2 9 I N T E G R A T E D 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
Revision 3
Page 27 of 27
March 2013
Message format:
"V".............. Message class - VHF NAV Message
"72"............. Message Identifier
"ms" ............ Volume level and Squelch Level:
m = mic gain level in encoded hexadecimal, where m = desired level + 0x30
with a range between 1 - 20
s = 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 shows the mic gain level at 11 and the sidetone at 15.