Antenna Options

Radome removed from land-based antenna to show 1.5m parabolic dish antenna, scalar feed horn and LNB

Active-stabilised marine antenna

The antenna can be supplied in land-based or marine variants. Both use essentially the same radome, dish and RF components.

High-speed dual-axis antenna rotator (elevation over azimuth).
Dartcom XPA rotator controller with PID function and closed-loop feedback for excellent pointing accuracy and smooth tracking.
Automatically controlled by the ingest PC via RS-485 serial.

Control	Dual-axis PID controller with closed-loop feedback
Movement limits	0–360° azimuth 0–180° elevation
Speed	48°/sec azimuth 10°/sec elevation
Mechanical tolerance	±0.15°
Tracking accuracy	±0.1°
Weight	186kg (including radome)
Operating temperature	–20°C to +60°C unheated –40°C to +60°C with optional heater
Survival temperature	–35°C to +75°C

Active-stabilised pedestal to compensate for pitch, roll and yaw.
X-Y with continuous movement to eliminate cable wrap.
Automatically controlled by the ingest PC via TCP/IP.
Waveguide bandpass filter fitted between the scalar feed horn and LNB to prevent interference and damage from X-Band radar.

Control	X-Y head with active stabilisation in pitch, roll and yaw
Movement limits	None (continuous movement)
Vessel motion:
Roll	±30° @ 8 sec
Pitch	±15° @ 8 sec
Yaw	±80° @ 50 sec
Surge	±0.2g
Sway	±0.2g
Heave	±0.2g
Turning rate	10°/sec
Weight	180kg (including radome)
Power requirements	110/220V AC (±5%) 50/60Hz (+0, –3%) 660W
Wild heat	660W
Operating temperature	–10°C to +70°C unheated –40°C to +70°C with optional heater
Survival temperature	–35°C to +75°C
Humidity	95% @ 40°C
EMI/RFI	MIL-STD-461
Vibration	Designed to meet MIL-STD-167-1
Shock	Designed to meet MIL-STD-901

Dartcom