CPI 3.8 Meter Dual Offset Antenna

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Product Description

FEATURES

  • ‘Type-Approved’ bolt-together, all-aluminum reflector with self-aligning, fully interchange able components
  • Designed for 1.5 to 31 GHz operation, meeting FCC 25.209 regulations in Ku-Band and beyond the main beam at C-Band
  • Feed boom supports 300 lbs (136 kg) of equipment
  • Galvanized steel EL over AZ pedestal with jackscrews or struts
  • Standard: Survives 125 mph (200 km/h) winds in any position; 130 mph (209 km/h) at preferential stow orientation. Optional: HWA survives 150 mph (240 km/h) winds in stow orientation (true zenith)

 

Specification

 
  C-Band 4 Port C-Band 4 Port X-Band 2 Port
  Circular Polarized Linear Polarized Linear Polarized (7)
ELECTRICAL (1) Receive  Transmit Receive Transmit Receive  Transmit
Frequency  (GHz)  

3.400-     5.725  –

 

3.400  –      5.850  –

 

7.250  –      7.900  –

  4.200      6.725 4.200      6.725 7.750      8.400
Antenna Gain, Midband dBi (2)  

42.00      45.00

   

47.30      47.70

(+/- 0.2 dB)

3.400 / 5.850 GHz

  40.90      45.10  
4.000 / 6.300 GHz   42.40      45.20  
4.200/6.750 GHz   42.90      46.20  
VSWR  

1.30:1     1.30:1

1.30:1      1.30:1  

1.25:1     1.25:1

Pattern Beamwidth (2)      
-3 dB, at midband

-15 dB, at midband

1.29º       0.94º

2.71º       1.97º

1.29º       0.93º

2.71º       1.95º

0.72º      0.69º

1.51º      1.45º

Antenna Noise Temperature

5° Elevation

 

66 K

 

54 K

 

63 K

10° Elevation

20° Elevation

57 K

52 K

44 K

37 K

52 K

46 K

40° Elevation 50 K 44 K 44 K
Typical G/T (dB/K)  (3)

 

4.000 GHz, 35 K LNA

 

 

22.8

   
4.000 GHz, 35 K LNA   23.7  
4.000 GHz, 50 K LNA   22.9  
11.725 GHz, 70 K LNA     27.5
 

Axial Ratio

 

0.50 dB   050 dB

 

1.49 dB   1.49 dB

 

1.49 dB   1.49 dB

Power Handling (total) 2 kW CW  

10 kW CW

 

5 kW CW

Cross Polarization      
On Axis

Within a 1.0 dB Beamwidth

30.8 dB   30.8 dB

30.8 dB   30.8 dB

30.0dB   30.0 dB

30.0 dB   30.0 dB

21.3 dB   21.3 dB

21.3 dB   21.3 dB

Port-to-Port Isolation

Rx/Tx (Rx frequency) Tx/Rx (Tx frequency)

 

 

0 dB     -85 dB

-85 dB       0 dB

 

 

0 dB     -70 dB

-85 dB       0 dB

 

 

0 dB     -110 dB

-110 dB      0 dB

Sidelobe Performance Meets  ITU-RS-580, FCC (4) Meets 25.209, FCC (5)

IESS (Intelsat) or ITU-RS-580 (6)

Meets  ITU-RS-580, FCC (
RF Specification  

975-1744

 

975-2495

 

975-2192

 

 

ELECTRICAL (1)

Ku-Band 4 Port Linear Polarized (7) Receive   Transmit DBS-Band 2 Port Linear Polarized Receive  Transmit Ka-Band 4 Port Circular Polarized Receive   Transmit
Frequency  (GHz) 10.700 –    13.750 –  

10.700 –     17.350 –

   

17.700 –    27.000 –

12.950    14.800 12.750     18.400   22.000    31.000
Antenna Gain, Midband dBi (2) 50.80      52.20  

51.40

 

54.60

   

55.00

 

57.50

VSWR 1.30:1     1.30:1  

1.30:1     1.30:1

   

1.30:1

 

1.30:1

Pattern Beamwidth (2)

-3 dB, at midband

-15 dB, at midband

 

 

0.45º        0.39º

 

 

0.45º

 

 

0.31º

   

 

0.27º

 

 

0.20º

0.94º        0.82º 0.94º 0.65º   0.57º 0.42º
Antenna Noise Temperature      
5° Elevation 85 K 68 K 222 K
10° Elevation 72 K 52 K 178 K
20° Elevation 62 K 43 K 140 K
40° Elevation 58 K 39 K 110 K
Typical G/T (dB/K)  (3)  

 

29.6

 

 

30.9

       
11.725 GHz, 70 K LNA      
19.850 GHz, 120 K LNA          
19.850 GHz, 200 K LNA         29.7  
Axial Ratio          

0.50 dB   0.50 dB

Power Handling (total) 2 kW CW  

2 kW CW

   

500 Watts

Cross Polarization            
On Axis 35.0 dB    35.0 dB 35.0 dB   35.0 dB   30.8 dB   30.8 dB
Within a 1.0 dB Beamwidth 35.0 dB    35.0 dB 35.0 dB   30.0 dB   30.8 dB   30.8 dB
Port-to-Port Isolation            
Rx/Tx (Rx frequency) 0 dB     -120 dB 0 dB     -75 dB   0 dB     -85 dB
Tx/Rx (Tx frequency) -120 dB       0 dB -85 dB 0 dB   -85 dB 0 dB
Sidelobe Performance Meets ITU-RS-580,  FCC (4) Meets  ITU-RS-580, FCC   Meets ITU-RS-580
RF Specification  

975-4465

 

975-2091

 

975-4953

 CPI 3.8 Meter Dual Offset Antenna

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