Garmin GPS 72 User Manual

17
Introduction
17
Reference
Saved Tracks — are Track Logs that have been saved in the units memory.
Course Line — controls the display of the Route Line and Go To Line.
Bearing Line — The Bearing Line will show the bearing from your current location to
the active waypoint. This can be used to steer the shortest path to your waypoint.
Setup Map — ‘City’ Tab
The ‘City’ Tab contains the ‘Text’ and ‘Zoom’ settings for Large City, Medium City, Small
City and Small Towns. To change a setting, highlight the fi eld then press ENTER.
Make your selection, then press ENTER to accept.
The City settings are used to de-clutter the map. If ‘Auto’ is the selected ‘Zoom’ set-
ting, the Large and Medium cities will be displayed at a higher Map Zoom Scale setting.
Setup Map — ‘Other’ Tab
The ‘Other’ Tab contains the ‘Text’ and ‘Zoom’ settings for Railroad and an On/Off
setting for the Accuracy Circle. To change a setting, highlight the appropriate fi eld then
press ENTER. Make your new selection, then press ENTER to accept the selection.
Accuracy Circle — The Accuracy Circle is displayed around the current location on the
Map Page. The Accuracy Circle depicts the estimated accuracy of the location.
Heading Line — If the Heading line is ‘On’, a line showing your current heading will be
projected on the map from the current location. The Heading line is a thin black line.
Setup Map — ‘Line’ Tab
Setup Map — ‘City’ Tab
Map Page Options
190-00294-00_0B.indd 17 9/25/2002, 2:37:16 PM

Garmin GPS 72 Specifications

Navigation Features

Waypoints/icons	500 with name and graphic symbol
Routes	50 reversible routes with up to 50 points each
Tracks	Automatic track log; 10 saved tracks
Trip computer	Current speed, average speed, resettable max. speed, trip timer and trip distance
Alarms	Anchor drag, approach and arrival, off-course, proximity waypoint, shallow water and deep water
Tables	Built-in celestial tables for best times to fish and hunt, sun and moon rise, set and location
Map datums	More than 100 plus user datum
Position format	Lat/Lon, UTM/UPS, Maidenhead, MGRS, Loran TDs and other grids, including user grid

GPS Performance

Receiver	WAAS enabled, 12 parallel channel
Acquisition times (Warm)	Approximately 15 seconds
Acquisition times (Cold)	Approximately 45 seconds
Acquisition times (AutoLocate)	Approximately 5 minutes
Update rate	1/second, continuous
GPS accuracy (Position)	< 15 meters, 95% typical
GPS accuracy (Velocity)	0.05 meter/sec steady state
DGPS (USCG) accuracy (Position)	3-5 meters, 95% typical
DGPS (USCG) accuracy (Velocity)	0.05 meter/sec steady state
DGPS (WAAS) accuracy (Position)	< 3 meters, 95% typical
DGPS (WAAS) accuracy (Velocity)	0.05 meter/sec steady state
Dynamics	6 g’s
Interfaces	RS232 with NMEA 0183, RTCM 104 DGPS data format and proprietary GARMIN
Antenna	Built-in quadrifilar
Differential	DGPS, USCG and WAAS capable

Power

Source	External power, 8-35V; two “AA” batteries (not included)
Battery life	Up to 16 hours

Physical

Size	2.7"W x 6.2"H x 1.2"D (6.9 x 15.7 x 3.05 cm)
Weight	7.7 oz. (225 g)
Display	1.6"W x 2.2"H (4.1 x 5.6 cm) 120 x 160 pixels, high-contrast FSTN with bright backlighting
Case	Fully gasketed, high impact plastic alloy, waterproof to IEC 529 IPX7 standards
Temperature range	5ºF to 158ºF (-15ºC to 70ºC)
User data storage	Indefinite, no memory battery required