OPERATIONAL MODES

Receive and Transmit Capability

• Located in a remote radio quiet location
• Dark sky location

Location

• 5 Mi South of Haswell, Kiowa County, U.S.A. 
  Go south on Rd 19 until you see the antenna.
• Plishner Dish GPS Location:
  

  	N38° 22′ 51.10″	W103° 9′ 22.96″
  	N40° 08.900′	W105° 13.922′
  	38.380796°	-103.156358°
  	Elevation:	1666? m, 5465? ft

ANTENNA

• Antenna Specification
  

  Parameter Frequencies: 400 MHz – 2 GHz Diameter: 60 feet Antenna Gain: 42.5 dBi at 1 GHz (see plot) Beam Width: 2.6°/400 Mhz, 0.7°/2 GHz Noise Temperature: 1-2db at 400MHz total system - Noise Figure: 0.8db at 400MHz w/ 20db LNA - Coverage: Full Hemisphere† Slew Rate Max Az/El: 40/40 deg/min Slew Rate Min Az/El: ??/?? deg/min Azimuth Repeatability: ?? min Elevation Repeatability: ?? min               † Except at low elevation to North

  
  
• Antenna Patterns
• Antenna Feeds
  • 400 MHz Feed Horn
  • 900 Mhz Feed Horn
  • 1420 Mhz Feed Horn
  • 1665 Mhz Feed Horn
  • LNA from 0.4 GHz to 10 GHz
• Antenna Drive System
  • Elev Motor: 3hp, 460vac, 1750 rpm motor.
  • Azmith Motor: Synchronous servo motor
  • Speed Control: Variable Frequency Controllers
  • Brakes: Spring set, electrically released.
  • Machine Safeties: End of travel limit switches, Mechanical impact absorbers.
  • Shaft Encoders: Quadrature Relative. 1.17 Minute resolution
  • Shaft Encoders (Future): Absolute encoder, 12 bit, 5.27 min resolution
  • Primary Position Display: Selsyn 2 speed, 6 Minute resolution
  • Computer Position Detector: Quadrature encoder + Reference sensors
  • Computer Analog Resolution: 12 bit
• Antenna Steering Command Interface
  • Manual control station with selector switchs and rate potentiometers.
  • PC interface using proprietary software
  • PC interface using commercial software
  • User Manual available