Antenna Options

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

Active-stabilised marine antenna
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.

Land-based antenna

  • 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.
Land-based antenna specifications
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

Marine antenna

  • 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.
Marine antenna specifications
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
Radar filter specifications
Passband 7750–8400MHz
Insertion loss at band edges 0.25dB maximum
VSWR 1.2:1 maximum
Rejection from 9300–9500MHz 100db minimum
Operating temperature –10°C to +50°C

Indoor Equipment