User manual
9FX 250 / FX 500 User Manual
3 Main Units
The FX 250 / 500 FleetBroadband system include the following main units:
FX 250
• FX 250 FleetBroadband BDU
• FX 250 FleetBroadband ADU
• Primary Handset
FX 500
• FX 500 FleetBroadband BDU
• FX 500 FleetBroadband ADU
• Primary Handset
3.1.1 Above Deck Unit (ADU), the antenna unit
The FX series ADU is Marime FleetBroadband 3-axis controlled antenna. The antenna is
self-tracking based on patented beam squint technology. The simple and robust electro-
mechanical system, with one motor per free axis, provides full coverage in azimuth and
elevaon. Tracking is accomplished by measuring signals being connuously broadcast
from the satellite.
The radome covers the antenna equipments, which is composed of:
• Antenna Unit
• RF and GPS circuit
• Rotary joint
• Antenna pedestal
The antenna unit includes LNA (low noise amplier), HPA (high power amplier) and
tracking receiver circuitry to ensure communicaon even in adverse circumstances.
Skipper FX 500
ADU
Class 8 FX 500
FX 250
Skipper FX Primary
Handset
Class 9
BDU Handset
Skipper FX 250