Interfaces; Acquisition Times; Update Rate; Accuracy - Garmin GPS 19x HVS Technical Specifications

1.5.3.2 Acquisition Times


Reacquisition:

Hot:

Warm:

Cold:

1.5.3.3 Update Rate


1, 5, or 10 records per second

1.5.3.4 Accuracy


GPS Standard Positioning Service (SPS)
Position:
Velocity:

WAAS/EGNOS/MSAS
Position:
Velocity:

Measurement Pulse Output Time: ±1 microsecond at rising edge of the pulse

Dynamics: 999 knots velocity (only limited at altitude greater than 60,000 feet), 2g dynamics

1.5.4 Interfaces

1.5.4.1 GPS 19x HVS Electrical Characteristics


Differential NMEA 0183 Serial, Compatible Polarity.
o
The default transmission rate is 38400 baud. If necessary, the rate can be limited to 4800 baud by
installing the included resistor in series with the Accessory-ON wire. See the GPS 19x NMEA
0183 Installation Instructions for more information.
o
The default position output rate is 10Hz. If necessary, the rate can be limited to 1Hz by installing
the included resistor in series with the Accessory-ON wire. See the GPS 19x NMEA 0183
Installation Instructions for more information.
NOTE: When connecting this antenna to a GPSMAP 2000, 3000, 4000, or 5000 series device,
you must limit the update rate. If the update rate is not limited, the chartplotter might not receive
and display the GPS signal properly.

1.5.4.2 Garmin Interface

Refer to the Garmin Device Interface Specification found in the Garmin Device Interface SDK for information
about the Garmin Interface. At the time of this printing, this document is located on the Garmin Web site at:
www.garmin.com/support/commProtocol.html.

1.5.4.3 GPS 19x HVS Protocol


NMEA 0183 Version 3.01 (the factory default version) is programmable by data field 7 of the PGRMC1
sentence described in

Available NMEA 0183 output sentences include GPALM, GPGGA, GPGSA, GPGSV, GPRMC, GPVTG,
GPGLL, PGRME, PGRMF, PGRMM, PGRMT, PGRMV, and PGRMB (Garmin proprietary sentences).
See section 4.2 Transmitted NMEA 0183 Sentences

Configuration and initialization is accomplished with NMEA 0183 input sentences. This allows
initialization of information such as expected position, date, time, earth datum, and differential mode and
configuration of operational parameters such as baud rate, positioning update rate, satellite system. See
section 4.1 Received NMEA 0183 Sentences

Configurable for binary data output.

1.5.4.4 Measurement Pulse Output


1 Hz pulse with programmable width, configurable in 20 ms increments from 20 ms to 980 ms. See
4.1.3 Sensor Configuration Information (PGRMC)
Output (or PPS) feature.
 1 s accuracy for all conditions in which the GPS 19x HVS reported a valid and accurate position fix for at
least the previous 4 seconds.
Less than 2 seconds
Approx. 1 second (all data known)
Approx. 38 seconds (initial position, time, and almanac known; ephemeris unknown)
Approx. 45 seconds
< 15 meters, 95% typical
0.1 knot RMS steady state
< 3 meters, 95% typical
0.1 knot RMS steady state
section 4.1.4 Additional Sensor Configuration Information
for format descriptions.
for format descriptions.
for details about configuring the Measurement Pulse
(PGRMC1).
section
8