NMEA-0183 message: MSS
The NMEA MSS message is supported by Trimble receivers capable of MSK (Beacon) reception.
Signal-to-noise ratio, signal strength, frequency, and bit rate from a MSK (Beacon) receiver
The format of the MSS message is:
$‐‐MSS, x.x,x.x,x.x,x.x,x*hh<CR><LF>
An example of the MSS message from a dual‐channel DGNSS receiver is:
$GPMSS,26.4,7.2,283.5,200,2*61
MSS message fields
|
Field |
Meaning |
|---|---|
|
0 |
Message ID $--MSS |
|
1 |
Signal strength (SS), dB re: 1 uV/m |
|
2 |
Signal-to-noise ratio (SNR), dB |
|
3 |
Beacon frequency, 283.5 to 325.0 kHz |
|
4 |
Beacon bit rate (25, 50, 100, 200) bits per second |
|
5 |
Channel number (set equal to "1" or null for single-channel receivers) |
|
6 |
The checksum data, always begins with * |
