SBX-3 Reference Manual
65
Field
Description
fff.f
Frequency in kHz (283.5 to 325)
x
Tune mode (M = manual tune mode, A = automatic tune mode)
ddd
MSK bit rate (100, or 200 bps)
y
MSK rate selection (M = manual tune mode, A = automatic tune mode)
n
Period of output of performance status message, 0 to 100 seconds ($CRMSS)
The $GPCRQ,MSK query may be issued through the secondary serial
port with a standard response issued to the same port. This will not
affect the output of RTCM data from the main serial port, when the
receiver has acquired a lock on a beacon station.
5.7.1.2 Receiver Performance Status Query ($GPCRQ)
This standard NMEA query prompts the SBX-3 for its performance
status:
$GPCRQ,MSS<CR><LF>
Response:
$CRMSS,xx,yy,fff.f,ddd*CS
Field
Description
xx
Signal Strength (dB
µ
V/m)
yy
Signal to Noise Ratio (dB)
fff.f
Frequency in kHz (283.5 to 325)
ddd
MSK bit rate (100, or 200 bps)
The $GPCRQ,MSS query may be issued through the secondary serial
port with a standard response issued to the same port. This will not
affect the output of RTCM data from the main serial port, when the
receiver has acquired a lock on a beacon station.
Содержание SBX-3
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