26
Symptoms of RF Interference
Symptoms of RF interference often resemble
those that arise when an antenna is being
operated with an obstructed view of the sky.
Some of these symptoms include; erratic or
no signal strength indication dropped calls or
warbled or otherwise distorted voice. These
symptoms may be intermittent or persistent,
depending largely on the interference source,
its distance, strength and frequency relative to
the antenna.
Mitigation of RF Interference
Service degradation due to RF interference can
be significantly improved by:
•
Increasing the distance and moving the
antenna off axis from the source of the
interference, and
•
Using an external band pass filter and an
external antenna.
WARNING
Failure to use BEAM approved antenna cables will
result in degraded performance and may damage
the TR400/OC400 terminal. This will void the
terminal’s warranty.
Cabling
Using an externally mounted antenna provides
an ideal solution for many applications. It is
very important that both the antenna cabling
and antenna are BEAM approved products.
Always ensure all RF connectors are screwed
together firmly and ensure there are no sharp
bends in the cabling between the TR400/OC400
and the antenna.
RF Interference
All wireless devices, including satellite
telephones, are susceptible to RF (radio
frequency) interference from other electronic
devices. This problem is more evident when
numerous antennas and broadcasting devices
are located within close proximity to each other.
Quality of Service
There are conditions that can compromise the
quality of the service you may receive.
These include:
•
Obstructions
•
Cabling
•
RF Interference
Obstructions
Nearby tall buildings or similar structures,
heavily leafed trees and mountains can all
degrade performance as they block the signal
between the antenna and the satellites.
Inmarsat performance is immune from natural
environments such as clouds, fog, rain, snow,
wind and smoke.
Summary of Contents for Oceana 400
Page 1: ...Terra 400 User Manual ...
Page 27: ...28 Physical Dimensions TR400 OC400 190mm 100mm 65mm 53mm 240mm ...
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