Garmin 52 安装指导
Acquiring GPS Signals
The first time you turn on the GVN 52, you must wait while the system acquires satellite signals for the first time. This process
could take up to several minutes. Make sure your vehicle is outdoors in an open area away from tall buildings and trees for fastest
acquisition. After the system acquires satellites for the first time, it will acquire satellites quickly each time thereafter.
Changing the Fuses
If you need to replace a fuse on the Red or Yellow wires, make sure the wires are not touching to prevent a short circuit. Then
replace the old fuse with a new 2 Amp fuse.
CAUTION
When replacing a fuse, use only a new fuse with the prescribed rating. Using a fuse with the wrong rating may cause your
unit to malfunction. Disconnect the wiring harness before replacing a fuse to prevent short circuits.
Specifications
General
Operating Temperature:
5°F to 158°F (0°C to 70°C)
Storage Temperature:
-40°F to 185°F (-40°C to 85°C)
Operating Voltage:
9.5 V to 25 V
Current Consumption:
0.12 A typical at 13 V (Max 1.0 A at 13 V)
ACC off Current:
70 uA typical at 13 V
Dimensions:
1
3
/
16
" H x 4
3
/
4
" W x 4
5
/
8
" L (30 mm x 120 mm x 117 mm)
Weight:
0.41 lb (184 g)
Map Storage:
Internal non-removable memory (pre-loaded City Navigator map data on European and North American units) and
optional removable SD card
Connectors:
System/power, GPS antenna, SD card slot, Mini-B for optional XM (only on the U.S. version) or FM traffic receivers
Navigation
Receiver:
12 parallel channel GPS receiver
Frequency:
1,575.42 MHz
Acquisition Times:
Warm:
Approx. 15 seconds
Cold:
Approx. 45 seconds
AutoLocate
®
:
Approx. 2 minutes
Update Rate:
1/second, continuous
GPS Accuracy:
15 meters (49 feet) RMS 95% typical with GPS
DGPS (WAAS) Accuracy: < 3 meters (10 ft) 95% typical with DGPS (WAAS/EGNOS) corrections
Antenna:
Antenna:
External GPS antenna, requires metal surface, such as a car roof or the included metal plate. A larger metal
mounting surface improves GPS reception.
Composite Video Switch
Left:
NTSC (default)
Middle:
NTSC
Right:
PAL
NOTE
Video quality varies depending on the display.