Campbell Scientific GPS16-HVS Garmin GPS Receiver - Manual (Page 29)

Appendix D. Garmin16-HVS Setups
2. If the target sentence mode is 0 (disable) or 1 (enable), the target sentence
description field must be an identifier for one of the sentences that can be
output by the GPS sensor.
3. If either the target sentence mode field or the target sentence description
field is not valid, the PGRMO sentence will have no effect.
4. $PGRMO,GPALM,1 will cause the GPS sensor to transmit all stored
almanac information. All other NMEA 0183 sentence transmission will be
temporarily suspended.
5. $PGRMO,,G will cause the COM 1 port to change to GARMIN data
Transfer format for the duration of the power cycle. The GARMIN mode
is required for GPS 16/17 series product software updates.
TABLE D-3. Supported NMEA 0183 Sentences
Order and Size
Sentence Default Output Maximum Characters
GPRMC Yes 74
GPGGA Yes 82
GPGSA Yes 66
GPGSV Yes 70
PGRME Yes 35
GPGLL No 44
GPVTG No 42
PGRMV No 32
PGRMF No 82
PGRMB Yes 40
PBRMM Yes 32
PGRMT Once per minute 50
In TABLE D-3 default Output indicates NMEA sentences that are Garmin16-
HVS defaults. CSI turns off all output except the GPGGA sentence. The time
required to output a NMEA sentence can be determined by multiplying the
maximum number of characters by 10 then dividing the result by the baud rate.
Selected sentences will be transmitted at a periodic rate based on the selected
baud rate and the selected output sentences. The sentences will be output
contiguously. Regardless of the baud rate, the sentences are reference to the
PPS signal immediately preceding the GPRMC sentence, or whichever
sentence is output first.
D-3