Sea Tel ST24, Руководство по эксплуатации и установке

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ST24 Ku-Band TVRO ST Series Technical Specifications
7-3
7.6. Stabilized Pedestal
Type Two-axis positioning (Elevation & Azimuth) and Polarization
Stabilization 3 Dimensional Velocity mode Servo
Stab Accuracy 1.5 degrees MAX, 0.7 degrees RMS in presence of specified ship
motions for pointing accuracy (see below).
Motors Size 23 DC Step Motors with PWM Microstep drive
Elevation Size 23 High Torque w/ Encoder
Azimuth Size 23 High Torque
Pol skew Motor Size 17 High Torque w/ Encoder
Inertial Reference 3 single axis Solid State Silicon Rate Sensors
Gravity Reference Dual Axis MEMS accelerometer
Azimuth Reference Closed Loop Tracking on Satellite signal
Stabilization rates
Roll/Pitch > 25 degrees / second
AZ./Turn > 15 degrees / second
Range of Motion
Elevation -10 to 80 degrees
Azimuth 680 degrees
Polarization +/- 120 degrees (240˚ Total)
Maximum Ship Motion
Roll +/- 25 degrees (implied)
Pitch +/- 15 degrees (implied)
Elevation Pointing
+/- 0 degrees of Roll +5 to +65 degrees
Ship Motions for specified pointing accuracy
Roll +/-20 degrees with 8-12 sec periods
Pitch +/-10 degrees with 6-12 sec periods
Yaw +/-8 degrees with 15 to 20 sec periods
Turning rate Up to 12 deg/sec.