Users manual
Appendix A
Revision #:
A
Date:
07-14-15
Page
50
of
58
CRM
– Measurement Data of GPS
Format:
$PERDCRM , time , sennum , maxsen , system ,
svid
,
reserve
1
2
3
4
5
6
snr
,
adr
, doppfreq , pseudorange *hh <CR> <LF>
7
8
9
10
Num
Contents
Range
Default
Remark
1
time
0 to 604799
-
GPS time of week
2
sennum
1 to 32
-
Sentence number
3
maxsen
1 to 32
-
Maximum number of sentences
4
system
1
-
GNSS system ID (1=GPS)
5
svid
1 to 99
-
Satellite number
6
reserve
1 to 3
-
Reserve field
7
snr
0 to 55
-
Signal to Noise Ration [dB-Hz]
8
adr
32bit
-
Accumulated Doppler Range [Cycles, LSB=-6]
9
doppfreq
32bit
-
Doppler Frequency [meters/sec, LSB=-12]
10
pseudorange
32bit
-
Pseudrange [meters, LSB=-6]
Example:
$PERDCRM,467055,9,10,1,18,2,40,251470,-225117,1630912949*4C
Notes:
-
This sentence will be output as a set once per second and will contain measurements for all GPS
systems.
-
To output this sentence, please input “$PERDAPI,CROUT,M,1*54” when baud rate is 115200bps.
