|
Electrical Specification |
|
Antenna |
20M Earth Station Antenna |
|
Operating Frequency, GHz |
Receive |
Transmit |
Receive |
Transmit |
|
3.625 to 4.2 |
5.85 to 6.425 |
3.4 to 4.2 |
5.85 to 6.65 |
|
Antenna Gain, dBi: Tx(at Tx port to feed)
Rx((at Rx port of feed) |
60.30+20lg [f/6(GHz)]
56.85+20lg [f/4(GHz)] |
60.20+20lg [f/6(GHz)]
56.75+20lg [f/4(GHz)] |
|
Cross Polarization Isolation for LP |
On Axis: 35dB, Within 1dB beamwidth:30dB |
|
Axial Ratio (dB) for CP |
0.5dB per port |
|
VSWR |
CP:1.25:1 LP:1.3:1 |
|
Antenna Noise Temperature: 5deg Elevation
10deg Elevation
20deg Elevation
40deg Elevation |
48K
36K
29K
24K |
|
54K
46K
36K
30K |
|
|
-3dB Beam Width(deg) |
0.24 |
0.16 |
0.24 |
0.16 |
|
Total Power Handling Capability |
5kw (cw) per Tx port |
|
Feed Interface |
CPR-229G |
CPR-137G |
CPR-229G |
CPR-137G |
|
Feed Insertion Loss, dB |
0.3 |
0.3 |
0.3 |
0.3 |
|
Port to Port Isolation: Tx to Rx(Tx Freq)
Rx to Rx
Tx to Tx(Same Band) |
85dB
CP: 20dB LP: 30dB
CP: 20dB LP: 30dB |
|
Radiation Pattern:First Sidelobe |
CCIR.580 |
|
Mechanical Specification |
|
Azimuth |
0 to170deg continuousw.r.t true south |
|
Elevation |
5 to 90deg (continuous) |
|
Finishes: Reflector Surface
Pedestal & Back Structure |
Aluminum panels with high-diffusing white paint
Galvanized steel |
|
Surface Accuracy |
0.7mm (R.M.S) |
|
Environmental Specification |
|
Operational Wind |
72km/h Gusting to 100km/h |
|
Survival Wind |
200km/h |
|
Rain |
Up to 100mm/h operational and survival |
|
Relative Humidity |
Up to 100% operational and survival |
|
Temperature |
- 40Deg.c to +60Deg.c |
|
Radial Ice(Survival) |
25mm on all surface |
|
Shock and Vibration |
As encountered during shipment by commercial air, sea, or truck |
|
Corrosive atmosphere |
As encountered in coastal regions and/or heavily industrialized areas |
|
Seismic (Survival) |
0.3g (H), 0.15g (V) |
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