VSAT 120

 

VSAT STABILIZED TRANSMITTING/RECEIVING Ku BAND ANTENNA



ANTENNA PARAMETERS:

Dish Diameter 1,20 m
Radome Diameter 1,40 m
Parabolic Dish Nautisat single piece 1,2m carbon fiber composite material
Above deck equipment mass 110 Kg
Type Prime Focus, front fed configuration and feed with mode generator
Frequency band Ku
Transmit frequency 13.75GHz   -14.50 GHz
Transmit gain 43 dBi (typical at 14.25 GHz)
Transmit XPD >30 dB within the mainlobe -1 dB contour
Transmit beamwidth +/- 0.64°
Receive frequency 10.70 GHz – 12.75 GHz
Receive gain 41 dBi (typical at 11.7 GHz)
G/T 20.0 dB/°K (typical at 11.7 GHz)
Pointing losses < 0.5 dB
Sidelobe patterns compliant with Eutelsat EESS 502
Polarization error <0.1°
Worldwide Feed Yes

STABILIZATION:


Stabilization type Active on three axis, with inertial reference and conical scan tracking
Motors Type Brushless servomotors

Operation angles
Elevation -30° + 120°
Tilt +/- 30°
Azimuth unlimited (with slip ring)
Ship Movement
Pointing accuracy 0.1°
Roll +/- 30° in 6 sec
Pitch +/- 30° in 6 sec
Turning rate up to 15°/s 

RADOME

Type two pieces diam. 1,40m
Material foam/fiberglass sandwich
Attenuation No rain 0.2 dB
Color: BIANCO RAL 9003 SIGNAL WHITE

ENVIRONMENT:

Above deck
Temperature -20°C to +55°C
Humidity up to 100% at +40°C
Spray and icing Radome protected
Protection water splash resistant from every direction
Wind 130 Knots
Corrosion metal part hot dip galvanized; allcomponents selected for marine usage
Vibration Meets Inmarsat requirements

Below deck
Temperature 0°C to + 40°C
Humidity Up to 100% R.H. at + 40°C
Power Requirement 220V, 50-60 Hz, 30W

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Antenna Control Unit. aka ACU

Type Rackmount
Signal level control AGC
Satellite identification Automatic with lock
Polarization control Automatic with Eutelsat correction
Gyrocompass interface NMEA, stepper synchro
GPS Integrated
Pilot receiver Integrated
Compatible all NMEA Functions (satellite zone auto-switch)