Garmin 120 GPS Receiver User Manual

Case: Fully-gasketed, high-impact plastic alloy, waterproof to IPX7 standards
(waterproof to one meter for 30 minutes)
Size: 4.5”H x 2.3”W x 1.6”D; 7”H with antenna (11.4 x 5.8 x 4.1; 17.8 cm)
Weight: Approx. 7.6 ounces (236 g) w/batteries
Temperature Range: 5° to 158°F (-15° to 70°C) (operating)
Display: 1.4”H x 1.4”W (3.6 cm x 3.6 cm) 160 x 160 pixels, high-contrast LCD
Receiver: WAAS Enabled, Differential-ready, 12 parallel channel
Acquisition time: Approx. 15 seconds (warm start)
Approx. 45 seconds (EZinit/cold start)
Approx. 5 minutes (First Time/AutoLocate™)
Update Rate: 1/second, continuous
GPS Accuracy: <15 meters (49 ft) RMS, 95% typical
DGPS (USGC) Accuracy: 3-5 meters (10-16 ft), 95% typical with DGPS corrections
DGPS (WAAS) Accuracy:
<3 meters (10 ft), 95% typical with DGPS corrections
Velocity Accuracy: 0.05 meter/sec steady state
Dynamics: Performs to specifi cations to 6 g’s
Interfaces: NMEA 0183, RTCM 104 (for DGPS corrections) and
RS-232 for PC interface
Antenna: Quad-helix
Channels: 22 (1-14 FRS, 15-22 GMRS (U.S. Only)) GMRS requires FCC license
Squelch Codes: 38
Range: Up to 2 miles on FRS; up to 5 miles on GMRS (U.S. only)
Radio Output Power: FRS 0.5 watt; GMRS 1.0 watt (U.S. only)
Input: Three 1.5-volt AA batteries
Battery Life: GPS only - up to 28 hours; FRS only - up to 20 hours;
FRS and GPS - up to 15 hours
Specifi cations are subject to change without notice.
Subject to accuracy degradation to 100m 2DRMS under the U.S. DoD-imposed Selective Availability program.
With optional GARMIN Differential Beacon Receiver Input (such as GARMIN GBR 21 or 23).
The temperature rating for the Rino may exceed the usable range of some batteries. Alkaline batteries can rupture
at high temperatures. External power can only be applied using the GARMIN Auto Power Adapter or PC Interface
Cable with Auto Power Adapter. These cables contain a 12 Vdc to 3 Vdc voltage regulator. Modifi cations or other
applications voids the product warranty.
Alkaline batteries lose a signifi cant amount of their capacity as temperature decreases. Use lithium batteries when
operating the Rino in below-freezing conditions. Extensive use of screen backlighting and the radio signifi cantly
reduces battery life. Different brands of batteries vary in performance.
5, 5, 90 Duty Cycle - 5% receive with audio unmuted, 5% transmit and 90% standby (receive with audio muted)
Appendix B
Specifi cations
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