Operator`s manual

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 VOLUME AND SQUELCH 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 MIC GAIN AND SIDETONE 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.