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Appendix B – Specifications
RF Performance
Frequency of Operation
Channelization
Maximum ERIP
Modulation
Antenna
Power Requirements
Mains Power (Power module)
IDU DC Input
36
Iridium Pilot Land Station Installation Guide
Transmit
Receive
FDMA Spacing
TDMA Timing
Channels Available
Voice (1 line)
Data (64 ch)
Voice/Data
Type
Polarization
Maximum Gain
Beam Width
Steering
Coverage
Rolling Motion
Turning Motion
Input Voltage
Input Frequency
Output Power
DC Input Voltage
Standby Power
Power During Call
Power During Data
1616 to 1625 MHz
1616 to 1626.5 MHz
41.67 KHz
8.3 ms slots in a 90 ms repeating
frame
250 Channels (max 64 per iOP)
6.3 Watts average power
12.6 Watts average power
QPSK
Electronically switched and phase
steered 6 dual element azimuth
array and 1 Zenith element
RHCP
+8 dBi
Hemispheric coverage (60˚ per
element)
Automatic solid state
Horizon to horizon
Useful link margin up to 20˚ pitch
and roll
Useful link margin up to 90
degrees/second turning motion
100 to 240 VAC
50 or 60 Hz
100 Watts (24 volts @ 4.2 Amps)
11 to 32 VDC
18 Watts
22 Watts
31 Watts (max power
consumption)
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