Users manual
$GPNVS
Revision #:
R
Date:
8/25/20
Page #:
13 of 24
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1.9 Status String ($GPNVS,9) Frequency Measurement
The frequency measurement string has two versions, one standard
version, and one for the NR6720.
1.9.1 Standard Frequency Measurement String
$GPNVS 9 hhmmss ddmmyy
(n)nnnnnnn.nnn
nnn
(-)nn
*
XX
1
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3
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8
# Description
Range
1.
Identifier
$GPNVS
2.
String ID
9
3.
Time (UTC)
hhmmss
4.
Date
mmddyy
5.
Measured Frequency
9999900.000 to 10000100.000
6.
Frequency Alert Range
0 – 240 (units of 0.0083 Hz)
7.
Temperature
-40 to 99 [C]
8.
NMEA Checksum
*XX (xor’d value of bytes between $ and *)
Example:
$GPNVS,9,233518,092516,10000000.003,240,25*70
