Rtcm Received Data; Earth Datums - Holux GM-82 User Manual

GM-82 User's manual
Speed
Units
Checksum
<CR> <LF>
(1). SiRF Technology Inc. does not support magnetic declination. All "course over ground" data are geodetic WGS84
directions.
4.1.6 MSK Receiver Signal (MSS)
Table C-9 contains the values for the following example:
$GPMSS,55,27,318.0,100,*66
Table C-9 MSS Data Format
Name
Message ID
Signal Strength
Signal-to-Noise Ratio
Beacon Frequency
Beacon Bit Rate
Note – The MSS NMEA message can only be polled or scheduled using the MSK NMEA input message.

4.2 RTCM Received Data

The default communication parameters for DGPS Input are 9600 baud, 8 data bits, stop bit, and no
parity. Position accuracy of less than 5 meters can be achieved with the GPS-82 by using Differential GPS
(DGPS) real-time pseudo-range correction data in RTCM SC-104 format, with message types 1,2, or 9. As
0.2 km/hr
K
*6E
Example Units
$GPMSS MSS
55 dB
27 dB
318.0 kHz
100
Measured horizontal speed
Kilometers per hour
End of message termination
Description
protocol header
dB SS of tracked frequency
SNR of tracked frequency
Currently tracked frequency
100 bits per second
10