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5012-91 Ku-Band Technical Specifications 5012-91 Installation Manual
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18. 5012-91 Ku-Band Technical Specifications
The specifications of your antenna system are below. For Naval Engineering level information on this subject, please refer to
Antenna Installation Guideline – Site Arrangement, document number 130040_A available on the Sea Tel Dealer Support Site.
18.1. Above Decks Equipment
System Weight (ADE)
Weight 182.8 kg / 403lbs
Stabilized Antenna Pedestal Assembly
Type Three-axis (Level, Cross Level and Azimuth)
Stabilization Torque Mode Servo / Two Axis W/Pol
Stability Accuracy 0.1° RMS, 0.2° peak in presence of specified ship
motions (see below).
Azimuth Motor Size 23 Brushless DC Servo, Double Stacked
W/Encoder
Level Motor Size 23 Brushless DC Servo W/Brake
Cross Level Motor Size 23 Brushless DC Servo W/Brake
Inertial Reference 3 Solid State Rate Sensors
Gravity Reference 2 MEMS Tilt Sensors
AZ transducer 256 line optical encoder / home switch
Pedestal Range of Motion:
Elevation Joint Angle -15° to +115°
Cross Level (Inclined 30°) +/- 35°
Azimuth Unlimited
Elevation Pointing 10 to 90 degrees at 25 degrees roll
5 to 95 degrees at 20 degrees roll
0 to 100 degrees at 15 degrees roll
Relative Azimuth Pointing Unlimited
Maximum Ship Motions
Roll +/-25° at 8-12 sec periods
Pitch +/-15° at 6-12 sec periods
Yaw +/-8 degrees at 15-20 sec periods
Turning rate Up to 12 deg/sec and 15 deg/sec/sec
Headway Up to 50 knots
Heave 0.5G
Surge 0.2G
Sway 0.2G
Specified Ship Motion (for stability
accuracy tests)
Roll +/- 20° at 8 second period
Pitch 10° Fixed
Relative Azimuth (Heading) 0, 45 and 90° with respect to roll input