Kratos Model P3200 Rotator - Antenna Pedestal

Kratos Model P3200 Rotator

Ideal for applications that include tracking radars, satellite tracking antennas, communications systems, and ELINT antennas, the Kratos Model P3200 post pedestal is a mid-sized pedestal featuring dual, geared drives in azimuth and elevation. Reliability and long life are the hallmarks of this pedestal. Drive systems are biased electronically to eliminate mechanical backlash in the gearing. The resulting system provides high reliability and accurate pointing for RF antennas. Pedestal and control electronics yield wide bandwidth servo performance with very low jitter, suitable for automatic tracking or gyro stabilized performance.

The pedestal will support balanced loads of up to 1000 pounds at velocities of 45 deg/sec. Optional features include slip
rings, rotary joints, and custom load support structures.

Only tested, field-proven components are used in the design of this pedestal. Hardware is military-temperature rated, and
mechanical design is rugged.

Dual Drives
Each axis contains dual, opposed drives consisting of DC servomotors operating through reduction gears. Axes have
failsafe friction brakes and manual drives. By electronically biasing the amplifiers, the drive motors keep the gear trains
constantly in contact, eliminating geartrain backlash.
Position Encoders
The position encoder in each axis is a resolver transmitter driven by anti-backlash gearing. Optional optical encoders may
be installed.
Bearings
The bearings are large diameter, bull gear bearings with large cross sections, and each has an overturning moment capacity of 68,000 ft-lbs. This ensures a very safety margin, yet provides necessary stiffness to meet the specifications of highly accurate systems.
Seals
The rotating interfaces of the positioner are environmentally protected through the use of Teflon lip-seals, effectively designed to exclude water, dirt, and dust while producing minimum system friction.

Pedestal Features
● Precision Bearings
● Dual Gear Driven with Bias, to Eliminate Backlash
● Up to 45 deg/sec Velocity
● Servo Driven Twin Motors on Elevation and Azimuth
● Precision Resolvers or Position Encoders for Angular Feedback
● 1000 Pound Payload Weight
● Environmentally Sealed