Blue Sky Network
June 2019
Page | 18
HE7200A-BB2327 Install Guide
P/N: 200804
Antenna Requirements
This guide does not cover antenna installation requirements completely and this section is intended to
provide general information about the antenna and its general installation configuration. The installation of
the antenna should be completed prior to installing the HE7200A-BB2327. For optimum performance, the
antenna must be installed on the upper surface of the aircraft fuselage, away from the vertical stabilizer
and with an unrestricted view of the sky down to eight degrees above the horizon (similar to a GNSS
antenna).
NOTE: Transmission from the antenna may be affected by and can affect the operation of other
systems; it is the operator’s responsibility to evaluate the location for any possible RF
interference. In particular the Iridium frequency is near the allocated GNSS band. The device
should be positioned at least 39 inches (1 meter) from any L-band antennas, particularly GNSS,
TCAS and Transponder antennas.
Minimum Antenna Requirement:
•
Iridium: 1616MHz to 1626.5MHz, Passive
•
GNSS: 1560MHz to 1606MHz, Active
Antenna Cable Requirement:
The signal loss budget, including the antenna cable and all connectors, from the antenna to the HE7200A
unit is < 1.5dB @1626MHz. 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.
Antenna Cable Routing Recommendations:
•
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 HE7200A and associated wiring should be kept a
minimum of three feet from high noise sources and not routed with cables from high power
sources.
