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C-1000A Iridium™ Satellite Phone System
100115
Dual-Channel Antenna (S67-1575-165) Installation
The S67-1575-165 Dual-Channel Antenna has a low profile, providing structurally
insignificant drag loads. The antenna is usually installed using four MS27039C1-10
attachment screws (10-32). However, each aircraft has unique airframe issues.
The
installer is responsible for the decision on any antenna installation issue.
A 1.25- inch (32 mm) diameter penetration, drilled at installation, permits the antenna
coax connector to be fed into the aircraft. No doubler plate is included with the dual
channel antenna, since each aircraft has a different shape and design.
Antenna Cable Installation
The C-1000A Satellite Phone System antenna cable must be routed from the
antenna to the C-1000A Modem Unit. The Modem Unit is generally installed in the
avionics bay of the aircraft or other location as determined by the installer.
Strict maximum attenuation requirements for the coax cable and connectors
that link the Antenna to the C-1000A Modem Unit must be observed.
The signal
loss budget, including the antenna cable and all connectors, from the antenna to the
C-1000A Modem Unit is < 2dB @1626MHz. Maximum cable length is determined by
this specification. Measured Voltage Standing Wave Ratio, or VSWR, of the coax
cable assembly, antenna and any bulkhead feed-through adapter must be less than
1.5 to 1.
Note:
The BSN Installation Kits include a 15-foot (4.6 m) FAA approved low loss
coax antenna cable sized to meet this requirement. In addition, Blue Sky
Network has custom cables lengths and configurations up to 60 feet (18
meters) long to meet your installation requirements. You can also request
that one or both end connectors be shipped uninstalled to ease cable routing.
Antenna Cable Routing Considerations
The length and routing of cables must be carefully planned before starting the
installation.
Avoid sharp bends in the cable. Exceeding the minimum bend radius of the
antenna coax cable may result in permanent degradation of the cable loss.
Do not locate the cable near aircraft controls.
Observe all appropriate sections of FAR Parts 23, 25, 27, and 29, as well as AC
43.13-1B and AC 43.13-2A
In order to ensure optimum performance, the C-1000A and associated wiring
should be kept a minimum of three feet from high noise sources and not routed
with cables from high power sources.
Summary of Contents for Iridium C-1000A
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