Rf Interface; Rf Interface Specifications; Radio Characteristics; Use - Iridium 9522A User Manual

L-band transceiver
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6.6 RF Interface

6.6.1 RF Interface Specifications

The RF interface requirements for the 9522A are summarized in Table
7 below.
Frequency Range
Duplexing Method
Oscillator Stability
Input/Output Impedance
Multiplexing Method

6.6.2 Radio Characteristics

The tables within this section contain radio characteristics of the 9522A.
Average Power during a transmit slot (max)
Average Power during a frame (typical)
Receiver Sensitivity at 50W (typical)
Receiver Spurious Rejection at offsets > 1 MHz (typical)
9522A with accessory antennas
(Note 1)
Note 1: Other antenna options are available
Note 2: Cable losses should be minimized
Note 3: Link Margin given for free space
7 Instructions for the safe Installation and use
The 9522A is intended for integration into a finished product. The
integrator of the 9522A is required to connect a power supply, antenna,
and user interface to the 9522A. To ensure that the 9522A is correctly
installed the following general instructions (sub-section 7.1) are
provided for the installer.
The integrator will be required to supply the end user of the integrated
product, incorporating the 9522A, with operating instructions and any
other information relating to the maintenance and safety of the
equipment (sub-section 7.2).

7.1 Instructions for the Integrator

The 9522A must be installed by an appropriately qualified installer and
mounted securely as described in section 4.4 of this document.
The power supply used to power the 9522A must be checked to ensure
it meets the requirements of sub-section 6.1.2 of this document.
Electrical connections to the 9522A multi-interface connector shall be as
designated in Table 2 of sub-section 4.3.1 of this document.
6
7
3/23/06
Table 7: General RF Parameters
Parameter
Table 8: In-Band Characteristics
Parameter
Table 9: Link Margin
Configuration
1:55 PM
Value
1616 MHz to 1626.5 MHz
TDD (Time Domain Duplex)
± 1.5 ppm
50
TDMA/FDMA
Cable Loss
2 dB
(Note 2)
Page 7
Value
7 W
0.6 W
-118.5 dBm
60 dB
Link Margin
13.1 dB
(Note 3)

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