Technical Manual
Table Of Contents
- Contents
- 1 Technical Specifications
- 2 Installation
- 2.1 Version Overview
- 2.2 Configuration of Single-Channel Unit
- 2.3 Cable Overview
- 2.3.1 Scanbus Termination
- 2.4 Where to Place the Satellite Transceiver Box
- 2.5 How to Mount the Satellite Transceiver Box
- 2.6 How to Put on the Finishing Cover
- 2.7 How to Insert the SIM Card
- 2.8 Optional SIM card Reader
- 2.9 How to Remove the Finishing Cover
- 2.10 Installation of the Antenna
- 2.11 Analogue telephone
- 2.12 Data Interface
- 2.13 External Ringer Interface
- 2.14 Reset Button
2
Installation
IRIDIUM
0514
1 Technical Specifications
Space Segment
Satellites 66 (Plus 6 in-Orbit backup satellites)
Orbital planes 6
Orbit height 780 kilometres
Inclination of the orbital planes 86.4 degrees
Orbital period 100 minutes, 28 seconds
Spot beams 48 per satellite
Radio module
Frequency Range 1616 MHz to 1626.5 MHz (L-Band)
Duplexing Method TDD (Time Domain Duplex)
Oscillator Stability ± 1.5 ppm
Input/Output Impedance 50 Ω
Multiplexing Method TDMA/FDMA
Average Power during a transmit slot (max) 7W
Average Power during a frame (typical) 0.6W
Receiver Sensitivity at 50 Ohm (typical) -118.5 dBm
Receiver Spurious Rejection at offsets > 1 MHz (typical) 60 dB
Voice/Data Rate 2.4 kbit/s QPSK
Antenna Helical, omni-directional 210°
(3 dB beam width)
Fibreglass radome ø 96 mm
Link Margin 16 dB
Antenna Tracking Capability
Turn Omni-directional antenna
Roll/pitch Up to ± 20 from horizontal position
Yaw Elevation > 8°
Interface
Handset 600 Ω / 4 wire RS485
Telephone/PABX 270 Ω +750 Ω // 150nF / 2 wire
Data RS232 with handshake
Position information NMEA 0183