COBHAM Sea Tel 4010W-17, Installation Manual

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4010W-17 Installation Manual 4010C-17 Technical Specifications
19-4
19.8. Stabilized Antenna Pedestal Assembly
Type: Three-axis (Level, Cross Level, AZ)
Stabilization: Torque Mode Servo
Stab Accuracy: 0.1 degrees RMS, 0.2 degrees MAX in presence of specified ship
motions (see below).
Azimuth Motor: Size 23 Brushless DC Servo, Double Stacked w/ Encoder
Level and Cross Level Motors, Size 23 Brushless DC Servo
Inertial Reference: 3 Solid State Rate Sensors
Gravity Reference: 3 axis solid state accelerometer
AZ transducer: 256 line optical encoder / home switch
Pedestal Range of Motion:
Elevation -15 to +110
Cross Level (Inclined 30 degrees) +/- 35 degrees
Azimuth Unlimited
Elevation Pointing +5 to +90 degrees at maximum specified roll
+10 to +85 degrees at maximum combined roll & pitch
Maximum Ship Motions
Roll: +/-24 degrees at 8 sec periods
Pitch: +/-14 degrees at 6 sec periods
Yaw: +/-8 degrees at 15 sec periods
Turning rate: Up to 12 deg/sec and 15 deg/sec
2
Headway: Up to 50 knots
Heave 0.5G
Surge 0.2G
Sway 0.2G
Specified Ship Motions (for stabilization accuracy tests):
Roll +/- 20 degrees at 8 second period
Pitch 10 degrees FIXED
AZ Relative 0, 45, & 90 degrees with respect to roll input
Mounting height: Sea Tel recommends that you not exceed tangential accelerations
of
0.5 G
(See chart below).
For Naval Engineering level information on this subject, please refer to Antenna Installation Guideline –
Site Arrangement, document number 130040 available on the Sea Tel Dealer Support Site
.