Furuno FV-110, Operator'S Manual

Page: 39 / 240

Site preparation
2-15
Radar interference
Even at distances greater than “d min.” in the previous section the radar might still be able
to degrade the performance of the FV-110 system.
The presence of one or more S or X-band radars within a radius up to 100 m may cause a
minor degradation of the Ku-band connection. The degradation will be most significant at
high radar pulse repetition rates.
As long as receiving conditions are favourable, this limited degradation is without
importance. However, if receiving conditions are poor – e.g. due to objects blocking the
signal path, heavy rainfall or icing, low satellite elevation and violent ship movements –
the small extra degradation due to the radar(s) could cause poor connection quality.
The presence of S-band radar(s) is unlikely to cause any performance degradation – as
long as the minimum distances (d min.) listed in the previous section are applied.
It is strongly recommended that interference free operation is verified experimentally
before the installation is finalized.
GPS receivers
Good quality GPS receivers will work properly very close to the ADU - typically down to
one meter outside the main beam.
CAUTION! The ADU must never be installed
closer to a radar than “d min.” - even if
experiments show that interference free
operation can be obtained at shorter distances
than “d min.” in the previous section.