Output Sentence Enable/Disable - Garmin GPS 25 LP Technical Specification

if no errors are detected. If an error is detected, the echoed PGRMC1 sentence will
contain the current default values. Current default values can also be obtained by
sending $PGRMC1E to the board.
$PGRMC1,<1>,<2>*hh<CR><LF>
<1> NMEA output time 1-900 (sec).
<2> Binary Phase Output Data, 1 = Off, 2 = On.
<3> Position pinning, 1 = Off, 2 = On.
<4> DGPS beacon frequency – 0.0, 283.5 – 325.0 kHz in 0.5 kHz steps.
<5> DGPS beacon bit rate – 0, 25, 50, 100, or 200 bps.
<6> DGPS beacon auto tune on station loss, 1 = Off, 2 = On.
<7> Activate NMEA 2.30 mode indicator, 1 = Off, 2 = On.
Configuration changes take effect on the next power cycle or an external reset event.
At power up or external reset, a stored beacon frequency other than 0.0 causes the
GPS 25LP to tune the beacon receiver.
4.1.5 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)
The following notes apply to the PGRMO input sentence:
1) If the target sentence mode is '2' (disable all) or '3' (enable all), 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 being output by the
GPS 25LP.
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