3.7 meter Radio Telescope

Full sky coverage motorized mount with
Azimuth over Elevation configuration
high resolution ( 0.01° ) encoders
Rack mount Antenna Controller
Rack mount Back-End receiver unit for
continuum and spectral line observation
Ku band
K band
L-Band Front-End unit

ELECTRICAL SPECIFICATIONS:

Operating frequency L-Band (1350 to 1450 MHz) Ka-Band (21 to 22.5GHz)
Polarization Linear Linear
G/T 12.10dB/K @1450MHz El=5° 35.28dB/K @ 22GHz El=5°
Gain 30.57 dBi 54.19 dBi
VSWR ≤1.35:1 ≤1.35:1
Beamwidth 4.8° @ 1.45GHz 0.318° @ 22 GHz
First Sidelobe < -14dB < -16dB
Axial ratio ≤1dB ≤1dB
Isolation ≥40dB ≥40dB
Reciver B/W 100 Hz to 1500 MHz
Receiver detectable signal level -155 dBm
Minimum Spectral Line
Resulation
10 Hz ( optional 1 Hz)

MECHANICAL/ENVIRONMENTAL SPECIFICATIONS:

Antenna Diameter 3.7 meter
Reflector type Dual reflector shape
Mount type Az over El
Antenna travel range Az=0 to 360 , El=0 to 90
Acceleration (each axis) constant
Velocity (each axis) 0.5°/s
Tracking Accuracy <0.1°
Pointing accuracy 0.01°
Surface Accuracy 0.5 mm
Outdoor Operating Temperature -40º to +55° C
Indoor Operating Temperature 10º to 30° C
Outdoor Humidity 0%～100%
Indoor Humidity <85% non-condensing
Operational Wind 75 km/h gusting to 85 km/h
Survival Wind 180 km/h (in park position at zenith) gusting to 210 km/h
Seismic 0.3 G horizontal, 0.15 G vertical
Ice Loading 13mm Operational; 25mm Survival
Adaptation Salt, pollutant, radiation, rain