MODEL 10457
QUICK DEPLOYABLE TRACKING PEDESTAL
Technical Systems Associates TSTAP Series Model 10457 Quick Deployable Two-Axis Tracking Pedestal consists of an internal servo driven two-axis pedestal with a conical scanning antenna system. This system is positioned by externally controlled digital inputs and is capable of simultaneously rotating the antenna in azimuth up to 45°/sec and from -5° to +95° in elevation.
The Model 10457 Antenna is comprised of a 84" diameter reflector antenna illuminated to provide conical scanning over the operating frequency band of 1.4 to 2.4 gHz. Other frequencies are available. The reflector is configured for three pieces for transportability. Hinges and captive hardware allow quick deployment in the field.
The pedestal uses a manual jack to fold the system to a transportable configuration. Deployment requires no tools and takes three minutes. The two-axis pedestal is eqipped with a pulse width modulated servo drive system and power supply. The rotating velocity and elevation travel of the pedestal is software-limited but can be designed to meet specific customer requirements. Two specially designed low backlash, heavy duty steel spur gear systems provide durable as well as reliable means of positioning a payload. A 650:1 ratio provides extremely smooth movement. An integrated slip ring/rotary joint package allows signal routing through the pedestal. Electro-mechanical limits at the elevation axis extremes, interlock switches on the access doors, as well as stow pin mechanisms and brakes on both axes provide an added safety measure.
The pedestal receives digital commands from a remote computer input. Resolvers located in each axis transmit azimuth and elevation positioning information to within 0.005°. An azimuth offset capability is included in this system. The offset feature allows the user to program the desired offset for alignment purposes. Circuit protection for the system ir psorivded via a 6 amp circuit breaker located on the pedestal. Cable lengths to 400' interface the remote control source with the pedestal.
MODEL 10457
| MECHANICAL | ||
| AXIS ARRANGEMENT: | Elevation over azimuth | |
| VELOCITY; BOTH AXES: | 0 to 45°/sec (other velocities available) | |
| AZIMUTH TRAVEL: | Continuous | |
| ACCELERATION; BOTH AXES: | 45°/sec2 | |
| ELEVATION TRAVEL: | -5° to +95° (software selectable) | |
| DRIVE MOTORS: | 100 Volt, DC, permanent magnet (optional hand cranks are available) | |
| DRIVE GEAR BACKLASH: | +/-0.02°, maximum | |
| LOAD CAPACITY: | 500 lbs, minimum | |
| BENDING MOMENT: | 2500 ft. lbs, minimum | |
| OUTPUT TORQUE: | >500 ft. lbs. | |
| SPEED RATIO: | 650:1 | |
| RESOLVER ACCURACY: | 16-bit | |
| ELECTRICAL | ||
| DRIVE SYSTEM: | Two-axis, pulse width modulated servo drive system with power supply | |
| PRIMARY POWER: | 110V-220V, AC optional | |
| CIRCUIT PROTECTION: | 6 amp circuit breaker | |
| SIGNAL ROUTING: | Rotary joint/slip ring package | |
| SLIP RINGS: | Twenty-four 10 amp rings | |
| SAFETY: | Stow pins and brakes for EL & AZ axis as well as elevation limit switches | |
| INTERFACE OPTIONS: | 12-bit RS 422 parallel I/O, RS 232, RS 485 serial, IEEE 488 synchro, or resolver | |
| ANTENNA | ||
| DIAMETER: | 84" | |
| FREQUENCY RANGE: | 1.4-2.4 gHz | |
| GAIN: | 26-31 dBi min. | |
| BEAMWIDTH: | 4° - 7° nominal | |
| VSWR: | 2:1 max. | |
| POLARIZATION: | Circular | |
| INTERFACE: | SMA or Type N female | |
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