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Garmin GPS18-PC

This product is no longer available.

The GPS18PC is a 12-parallel-channel, WAAS-enabled GPS receiver that comes with an integrated magnetic base. The puck-like receiver is 2.4 inches in diameter and weighs just ounces, making it an ideal solution in applications where space is at a premium.

The GPS18-PC defaults to output data in the industry standard NMEA 0183 data format at 4800 baud, but is user progammable to other baud rates as well the GARMIN proprietary format. The GPS 18 comes complete with non-volatile memory for storage of configuration information, a real-time clock, and raw measurement output data for sophisticated applications.


  • Input Voltage: 8 - 30 Vdc (Automotive supply from cigarette lighter jack)
  • Input Current: 50 mA @ 13.8 Vdc
  • Acquisition times:
    • Reacquisition: Less than 2 seconds
    • Warm: Approximately 15 seconds
    • Cold: Approximately 45 seconds
    • AutoLocate: 5 minutes
    • SkySearch: 5 minutes
  • Update rate: 1 to 900 seconds between updates; programmable in 1 second increments
  • GPS accuracy:
    • Position: < 15 meters, 95% typical**
    • Velocity: 0.1 knot RMS steady state
  • DGPS (WAAS) accuracy:
    • Position: < 3 meters, 95% typical
    • Velocity: 0.1 knot RMS steady state
  • Dynamics: 999 knots, 6g’s
  • Map datums: 108 predefined, 1 user
  • Serial interface: Asynchronous serial input compatible with RS-232 or TTL voltage levels, RS-232 polarity
  • Baud rates: 300/600/1200/2400/4800/9600/19200/38400.
  • Selectable between NMEA 0183 v2.00 and GARMIN binary formats; Approved output sentences: GPALM, GPGGA, GPGLL, GPGSA, GPGSV, GPRMC, GPVTG; Proprietary sentences: PGRMB, PGRME, PGRMF, PGRMM, PGRMT, PGRMV.
  • Temperature: Operating: –30° to 80°C; Storage: –40° to 90°C
  • Size: 61.0 mm diameter x 19.5 mm height
  • Weight: 184.6g
  • Data Connector: DE-9M
  • Power Connector: Cigarette lighter compatible male plug.
Specifications are preliminary and subject to change without notice.

* Warm = all data known.
Cold = position, time and almanac known.
SkySearch = no data known.

** Subject to accuracy degradation to 100m 2DRMS under the U.S. Department of Defense imposed Selective Availability Program.


Do NOT remove the cigarette lighter male plug on this unit in order to use a different connector. The voltage regulater is built into the cigarette lighter male plug. If you'd like a wire leads only (5 VDC power required) unit contact the TAPR Office.

Ordering Information

Sorry, Garmin GPS18-PC is no longer available


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