ZyCast
SG-289 User’s Manual v1.1
20
$GPMSS
This message transfers information about radio beacon signal-to-noise ratio, signal strength, frequency,
etc. Following is an example.
$GPMSS,55,27,318.0,100,1,*57
The $GPMSS message format is shown below.
Field Example
Unit
Notes
Message ID
$GPMSS
MSS protocol header.
Signal Strength
55
dB
SS of tracked frequency.
Signal-to-Noise Ratio
27 dB
SNR of tracked frequency.
Beacon Frequency
318.0
kHz
Currently tracked frequency.
Beacon Bit Rate
100
Bits per second.
Channel Number
(1)
1
The channel of the beacon being used if a
multi-channel beacon receiver is used.
Checksum *57
<CR> <LF>
Message terminator.
(1)
Fields marked in italic red apply only to NMEA version 2.3 (and later) in this NMEA message description.
