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Satellite Systems Corporation Model ATX-3000
Automatic Inclined Orbit
Antenna Tracking Controller
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Built-in features include
The ATX-3000 antenna tracking controller is a userfriendly microprocessor-based system to reliably track inclined orbit satellites.
- Fully programmable positioner with memories for up to 99 satellites.
- Automatic Calibration for true Azimuth and Elevation displayed in 0.01 degrees.
- High resolution Brushless resolvers for ultimate position feedback.
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| Designate: |
Automatically moves the antenna in each axis to one of 99 pre-stored satellite positions. |
| Direct Az/El: |
Automatically moves the antenna in each axis to the coordinates entered via the front panel. |
| Jog: |
Manually moves the antenna in each axis in response to front panel controls. |
| Peak: |
Performs a peaking algorithm on the current target |
| Step Track: |
Automatically performs peaking algorithm in response to input signal level decreasing below a programmable minimum. |
| Program Track: |
Automatically moves the antenna in each axis along a sidereal time tagged path. |
| External: |
Moves the antenna in each axis in response to commands received through the serial port. |
| Performance |
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| Accuracy: |
Antenna pointing accuracy within ten percent of the 3dB beamwidth. |
| Tracking Resolution: |
> 0.05 degrees with properly specified position sensor. |
| Interfaces |
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| Reference: |
Accepts input of linear, analog signal reference from 0 - 20 VDC. Internal op amp circuit provides pre-scaling of gain and slope of tracking reference signal. Final scaling is provided through software. |
| Serial Data: |
Accepts RS-232 or RS-485 (4-wire) data for remote monitor and control of all controller functions. |
Front Panel: |
Large Graphic VFD displays antenna position, signal level and operating mode. Keypad provided for user inputs. |
| Motor Control: |
The rack mounted microprocessor controller is linked to any of SSC's motor control options by serial interface cable. |
| Prime Power (ACU): |
90 - 260 VAC, 47 - 63 Hz, single-phase, auto sensing, 65 watts maximum.
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| Antenna Drive Units for AC Motors |
| Solid-state variable frequency 3 phase AC motor controllers with microprocessor motor speed management. |
| Static braking with torque at 150% of rated motor torque. |
| Variable speed control 0 to 60 Hz with constant torque. |
| Low frequency voltage boost 150% starting torque under 20% speed. |
| Local jog control and Emergency Stop switch are provided at the ADU. |
| Optional handheld remote jog control is available. |
Two voltage configuration options: (must be specified at time of order.)
220 - 240 Volts, 47 - 63 Hz single- or three-phase prime power, 220 - 240 Volts three-phase motors.
– OR –
380 - 460 Volts, 47 - 63 Hz single- or three-phase prime power, 380 - 460 Volts three-phase motors.
(A single-phase 90 - 260 VAC, 47 - 63 Hz, 45 watts maximum is also require for outdoor controls). |
| HP configuration options: 1 - 5 hp available. |
| Dimensions |
| ACU: |
1 RU, 19" x 18.5" x 1.75" |
| ADU: |
Dual axis 3 phase AC motor control unit is a NEMA-4 outdoor enclosure 16"W x 20"H x 9"D. Larger voltage or Horsepower may require larger enclosure. |
| Interconnections |
| Local AC mains is required at the ADU. |
| A two conductor, 20 gauge shielded cable from the ADU to indoor ACU interface is required. |
| Required Limit switches connect to ADU. |
| Extra Emergency stop switches may connect to ADU. |
| High resolution optical position encoders or absolute, brushless resolvers mount directly on antenna Az and El pivot axis. |
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| Options |
| Motors, Gear reducers, Jack screws, Limit switches, Emergency stop switches. |
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| Beacon Receivers |
| Designed to work in concert with SSC Model 3434 line of Beacon Tracking Receivers. |
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