Garmin GPS 400W, Installation Manual

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Page 1-4 GNS 400W Series Installation Manual
Rev. G 190-00356-08
The display on the 400W Series unit is a sunlight readable LCD display.
Display Size
3.8” diagonal
Active Area
3.29” (W) x 1.75” (H)
Resolution
240 x 128 pixels
Viewing Angle
(with a 2:1 contrast ratio, min)
Left/Right:
Up:
Down:
40
40
40
Viewing Distance
36 inches maximum
1.4.3 GPS Specifications
Number Of Channels 15 (12 GPS and 3 GPS/WAAS/SBAS)
Frequency
1575.42 MHz L1, C/A code
Sensitivity (Acquisition, No
Interference)
-134.5 dBm GPS
-135.5 dBm WAAS
Sensitivity (Drop Lock) -144 dBm
Dynamic Range
> 20 dB
Lat/Lon Position Accuracy <1.25 meter RMS horizontal, <2 meter vertical, with WAAS
Velocity
1000 knots maximum (above 60,000 ft)
TTFF (Time To First Fix) 1:45 min. typical with current almanac, position, and time
Reacquisition
10 seconds typical
Position Update Interval
0.2 sec (5 Hz)
1 PPS (Pulse Per Second) 275 Nsec of UTC second
Datum WGS-84
SATCOM Compatibility
SATCOM compatibility is dependent upon antenna
selection. See Section 1.4.8 for additional information.
Antenna Power Supply 35 mA typical, 40 mA max at 4.7 VDC