5.5 Network Available Output
This is a digital output that can be used by an application to know when the Transceiver has visibility to
the satellite network. This is useful in applications where the Transceiver may move around terrain that
reduces the amount of time that clear line of sight to the satellite constellation is available. The application
developer can use this output to preserve battery life by reducing the number of attempted transmissions
by including this logic output in the application decision logic.
5.6 DC Power Output
A limited power output can be provided by the 9601 which could be used for driving an LED to provide a
visible indication that the transceiver is on, or the output could be used in application logic to determine if
the transceiver is on.
6.0 RF Interface
This section describes the physical connector and RF specifications of the RF Interface.
6.1 Antenna Connector
The 9601 will have the following antenna connector characteristics as described in Table 10.
Table 10: Antenna Characteristics
Parameter Value
Impedance 50 Ohms nominal
Gain 3dBi
Polarization RHCP
VSWR (maximum operational) 1.5 : 1
Note:
•
Existing qualified Iridium antennas may be used. (i.e. antennas designed for the 9522 and 9601)
•
Existing antennas will require different RF connector types to those for the 9522 and 9601
6.1.1 Antenna Connector Type
The antenna connector on the 9601 is a female SMA type. The connector is manufactured by Johnson
Components and has a part number: 142-0701-871. Additional information can be found at:
http://www.johnsoncomponents.com/webapp/wcs/stores/servlet/ENPProductDetailView?itemid=20525&st
oreId=10010&catalogId=10010&langId=-1
A data sheet may be downloaded from:
http://www.johnsoncomponents.com/webapp/wcs/stores/Johnson/pdfs/1420701871.pdf
6.2 RF Interface Specifications
The RF interface requirements for the 9601 are summarized in Table 11 below.
Table 11: General RF Parameters
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