Serial Interface Specifications
Apollo SL30 Installation Manual
75
Morse Code station identifier. The third choice is “VOICE”, which will emphasize voice signal
and suppress the Morse Code station identifier.
Message format:
“V” ................ Message class. This is a VHF NAV message.
“29” ............... Message identifier.
a..................... NAV audio mode. “0” = OFF, “I” = IDENT, “V” = VOICE
Example message:
$PMRRV29I<chksm><CR><LF>
The current NAV Audio mode is “IDENT”.
NAV MICROCONTROLLER SOFTWARE VERSION
This message is used to output the version string for the NAV microcontroller software.
Message format:
“V” ................ Message class. This is a VHF NAV message.
“30” ............... Message identifier.
vvvv............... Software version in ASCII
e..................... Engineering version flag:
“R” = Released version.
“E” = Engineering version.
Example message:
$PMRRV300103E<chksm><CR><LF>
NAV Microcontroller software is version 1.03. It is an engineering version.
NAV DSP SOFTWARE VERSION
This message is used to output the version string for the NAV DSP software.
Message format:
“V” ................ Message class. This is a VHF NAV message.
“31” ............... Message identifier.
vvvv............... Software version in ASCII
e..................... Engineering version flag:
“R” = Released version.
“E” = Engineering version.
Example message:
$PMRRV310101R<chksm><CR><LF>
NAV DSP software is version 1.01. It is a released version.