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3.1.2 Output Sentence Enable/Disable (PGRMO)
The $PGRMO sentence provides the ability to enable and disable specific output sentences. The following
sentences are enabled at the factory: GPGGA, GPGSA, GPGSV, GPRMC, and PGRMT.
$PGRMO,<1>,<2>*hh<CR><LF>
<1>
Target sentence description (e.g., PGRMT, GPGSV, etc.)
<2>
Target sentence mode, where:
0 = disable specified sentence
1 = enable specified sentence
2 = disable all output sentences
3 = enable all output sentences (except GPALM)
4 = restore factory default output sentences
The following notes apply to the PGRMO input sentence:
1. If the target sentence mode is '2' (disable all), '3' (enable all), or '4' (restore defaults), the target
sentence description is not checked for validity. In this case, an empty field is allowed (e.g.,
$PGRMO,,3), or the mode field may contain from 1 to 5 characters.
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. $PGRMO,,G will cause the COM port to change to Garmin Data Transfer format for the duration of
the power cycle. The Garmin mode is required for GPS 10 series product software updates.
3.2 TRANSMITTED NMEA 0183 SENTENCES
The subsequent paragraphs define the sentences that can be transmitted by the GPS 10x.
3.2.1 Sentence Transmission Rate
Sentences are transmitted with respect to the user selected baud rate.
The GPS sensor will transmit each sentence (except where noted in particular transmitted sentence
descriptions) at a periodic rate based on the user selected baud rate and user selected output sentences. The
GPS sensor will transmit the selected sentences contiguously. The length of the transmission can be
determined by the following equation and Tables 2 and 3:
length of transmission
Sentence
GPGGA
GPGSA
GPGSV
GPGLL
GPVTG
PGRMT
Table 1: NMEA 0183 Output Sentence Order and Size
The maximum number of fields allowed in a single sentence is 82 characters including delimiters. Values
in the table include the sentence start delimiter character "$" and the termination delimiter <CR><LF>. The
factory set defaults will result in a once per second transmission at the NMEA 0183 specification.
190-00769-00
total characters to be transmitted
=
---------------------------------------------
characters transmitted per second
Output by Default?
Maximum Characters
Once per minute
GPS 10x Technical Specifications
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