SkyTrac Systems Ltd.
Document Rev. 02.010
ISAT-100-OPD-SOI
Page 3 of 26
Restricted Proprietary and Confidential Information
2 SPECIFICATIONS
2.1 Physical Properties
Operating Temperature
-15ºC to +55ºC (RTCA DO-160D)
-40ºC to +55ºC (manufacture test)
Size
10” (L) excluding connectors, 3.5” (H)
4.2” (W) plus 1.5 “ bottom mounting flange
Weight
2.3 kg (5.07 lbs)
Power Requirement
Nominal standard 28VDC system bus via 3 Amp breaker.
*Actual consumption is 0.5 Amp typical, 1.5 Amp while
transmitting. Equipped with reverse voltage and transient
protection.
Mounting
6 x 3AN bolts, flange mount horizontally with mounting
brackets on the bottom.
Normal air circulation required:
Do not cover vent holes
in top cover or in sides (2) of unit.
2.2 Technical Specifications
2.2.1 GPS Receiver
Receiving Method
12 Channel, Parallel Receiver
Acquisition time
48 seconds after power up (cold start)
0.1 seconds for re-acquisition.
Position accuracy
Less than 25 m without Differential GPS
1-5m with Differential GPS - WAAS enabled
Acceleration
4 G max
2.2.2 ISAT-100 Combination Antenna
Active L1 GPS/Passive Iridium Antenna, low profile, moulded radome.
Height:
0.721 in. (18.31 mm)
Length:
5.026 in. (127.66 mm)
Width:
2.0 in. (55.88 mm)
Weight:
8.0 oz (226 g)
Voltage:
3.0 to 28.0 VDC @ 50 mA max
Gain (GPS antenna): 32dB min
The Iridium
®
satellite serving a Short Burst Data call can literally be anywhere in orbit
at a given moment in time. For this reason, it is imperative that the antenna be
mounted outside, as high as possible, in a horizontal position on the aircraft,
attempting to achieve a 360-degree view of the sky with minimal obstructions.
The document reference is online, please check the correspondence between the online documentation and the printed version.
