Furuno Inmarsat FleetBroadband FELCOM251 Installation Manual page 18

The antenna must never be installed closer
to a radar than "d min." - even if experi-
ments show that interference free operation
can be obtained at shorter distances than "d
min.".
Other Inmarsat systems
Recommended minimum safe distance to other Inmarsat antennas is 10 m.
FB-1501/FB-1251
(FB-1251 shown)
GPS receivers
Good quality GPS receivers will work properly very close to the antenna – typically
down to one meter outside the main beam, and down to a few meters inside the main
beam. However, simple GPS receivers with poor frequency discrimination could be af-
fected at longer range (typically 10 m). It is always recommended to test the GPS per-
formance before the installation is finalized.
VSAT systems
For optimum performance we recommend a minimum distance of 3 meters from the
antenna to VSAT antennas.
FB-1501/FB-1251
(FB-1251 shown)
Auxiliary Terrestrial Component (ATC)
The FleetBroadband system is resilient to ATC base stations (future terrestrial mobile
systems) that operate inside the Inmarsat band and that may be located near the
coast.
CAUTION
10 m or more
Inmarsat
3 m or more
2. INSTALLING THE SYSTEM
VSAT
2-5