Sitep UHF MILSATCOM Antenna System is directly derived from Sitep’s technology used for its shipboard UHF MILSATCOM Antenna Systems and VSAT terminals.
This model of UHF MILSATCOM Antenna System is designed to provide small size and light weight keeping extremely high performance.
It is a directional receive and transmit UHF SATCOM system, pointing the antennas for UHF MILSATCOM communications to the selected satellite and keeping them aimed by compensating variations of ship’s heading and geographic position which occur during manoeuvres.
The system is composed by an Antenna Assembly AB-
(Inertial Measuring Unit), even though antenna’s large beamwidth might suffice, especially when system is installed on board large vessels.
The antenna system allows 360° azimuth coverage. For installations where the ship’s superstructures obstruct the line of sight between the antenna and the satellite during manoeuvring, a dual antenna system is available. In this case the system automatically switches over the RF signals from the antenna approaching the obstruction to the other one.
Three channels versions are equipped with two additional modules. A combiner switch and a Receive Moulticoupler.
The system automatically selects the antenna in best visibility of the satellite so as to position it in order to keep the satellite at the center of the antenna beam.
Roll and pitch compensation relies on an internal IMU