Model 1.8m SF Antenna

GD Satcom

Model 1.8m SF Antenna

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  • Carbon fiber composite reflector
  • Tripod base mount
  • Less than 30-minute setup
  • Captive hardware/fasteners
  • Quick adjust positioner
  • Intelsat/Eutelsat sidelobe compliant (C and Ku band)

  • Description
  • Technical Specifications
  • Support Documents

Overview

The General Dynamics SATCOM Technologies lightweight 1.8-meter SF antennas are designed for worldwide transmit and receive operation in C, X, Ku and Ka band. These portable antennas consist of composite reflectors and aluminum tripod base mounts. This results in a low-weight antenna with superior stiffness and high performance under wind loading conditions.

The unique shape and the accurate reflector surface provide good sidelobe and cross-polarization performance. Repeatability is maintained with precision registration of the nine-piece reflector segments and the feed support structure.

The complete 1.8-meter antenna system, including a single feed, is packaged in multiple portable cases depending on options ordered.

Details

  • Carbon fiber composite reflector
  • Tripod base mount
  • Less than 30-minute setup
  • Captive hardware/fasteners
  • No tools required
  • Quick adjust positioner
  • Intelsat/Eutelsat sidelobe compliant (C and Ku band)
  • Feed boom supports up to 40 lbs. for amplifier mounting
  • Lightweight transport cases

Electrical**
C-Band 2-Port Linear Polarized Feed
Frequency (GHz)
  Receive
  Transmit
  
3.625 - 4.200
5.850 - 6.425
Antenna Gain at Midband
  Receive
  Transmit
  
35.60 dBi
39.30 dBi
Antenna Noise Temp 5° Elevation 56 K
Antenna Noise Temp 10° Elevation 42 K
Antenna Noise Temp 20° Elevation 37 K
Antenna Noise Temp 40° Elevation 38 K
Pattern -3 dB Beamwidth (in degrees at midband)
  Receive
  Transmit
  
2.84
1.87
Pattern -15 dB Beamwidth (in degrees at midband)
  Receive
  Transmit
  
5.96
3.93
Cross Polarization On Axis
  Receive
  Transmit
  
30.0 dB
30.0 dB
Cross Polarization Within 1.0 dB Beamwidth
  Receive
  Transmit
  
26.0 dB
26.0 dB
VSWR
  Receive
  Transmit
  
1.30:1
1.30:1
Port-to-Port Isolation Rx/Tx (Rx frequency)
  Receive
  Transmit
  
0 dB
-30 dB
Port-to-Port Isolation Tx/Rx (Tx frequency)
  Receive
  Transmit
  
-70 dB
0 dB
Feed Insertion Loss
  Receive
  Transmit
  
0.20 dB
0.15 dB
Output Waveguide Flange Interface
  Receive
  Transmit
  
CPR-229G
CPR-137G
Total Power Handling Capability 2.00 kW CW
RF Specification 975-3381
C-Band 2-Port Circular Polarized Feed
Frequency (GHz)
  Receive
  Transmit
  
3.625 - 4.200
5.850 - 6.425
Antenna Gain at Midband
  Receive
  Transmit
  
35.30 dBi
39.30 dBi
Antenna Noise Temp 5° Elevation 73 K
Antenna Noise Temp 10° Elevation 59 K
Antenna Noise Temp 20° Elevation 54 K
Antenna Noise Temp 40° Elevation 55 K
Pattern -3 dB Beamwidth (in degrees at midband)
  Receive
  Transmit
  
2.88
1.86
Pattern -15 dB Beamwidth (in degrees at midband)
  Receive
  Transmit
  
6.05
3.91
Cross Polarization On Axis
  Receive
  Transmit
  
15.3 dB
17.7 dB
Cross Polarization Within 1.0 dB Beamwidth
  Receive
  Transmit
  
15.3 dB
17.7 dB
VSWR
  Receive
  Transmit
  
1.30:1
1.30:1
Port-to-Port Isolation Rx/Tx (Rx frequency)
  Receive
  Transmit
  
0 dB
-50 dB
Port-to-Port Isolation Tx/Rx (Tx frequency)
  Receive
  Transmit
  
-85 dB
0 dB
Feed Insertion Loss
  Receive
  Transmit
  
0.40 dB
0.20 dB
Output Waveguide Flange Interface
  Receive
  Transmit
  
CPR-229G
CPR-137G
Total Power Handling Capability 2.00 kW CW
RF Specification 975-3380
X-Band 2-Port Circular Polarized Feed
Frequency (GHz)
  Receive
  Transmit
  
7.250 - 7.750
7.900 - 8.400
Antenna Gain at Midband
  Receive
  Transmit
  
41.30 dBi
42.00 dBi
Antenna Noise Temp 5° Elevation 67 K
Antenna Noise Temp 10° Elevation 57 K
Antenna Noise Temp 20° Elevation 52 K
Antenna Noise Temp 40° Elevation 54 K
Pattern -3 dB Beamwidth (in degrees at midband)
  Receive
  Transmit
  
1.44
1.33
Pattern -15 dB Beamwidth (in degrees at midband)
  Receive
  Transmit
  
3.02
2.79
Cross Polarization On Axis
  Receive
  Transmit
  
21.3 dB
21.3 dB
Cross Polarization Within 1.0 dB Beamwidth
  Receive
  Transmit
  
21.3 dB
21.3 dB
VSWR
  Receive
  Transmit
  
1.30:1
1.30:1
Port-to-Port Isolation Rx/Tx (Rx frequency)
  Receive
  Transmit
  
0 dB
-110 dB
Port-to-Port Isolation Tx/Rx (Tx frequency)
  Receive
  Transmit
  
-110 dB
0 dB
Feed Insertion Loss
  Receive
  Transmit
  
0.40 dB
0.40 dB
Output Waveguide Flange Interface
  Receive
  Transmit
  
CPR-112G
CPR-112G
Total Power Handling Capability 5.00 kW CW
RF Specification 975-3125
Ku-Band 2-Port Linear Polarized Feed
Frequency (GHz)
  Receive
  Transmit
  
10.950 - 12.750
13.750 - 14.500
Antenna Gain at Midband
  Receive
  Transmit
  
45.10 dBi
46.10 dBi
Antenna Noise Temp 5° Elevation 73 K
Antenna Noise Temp 10° Elevation 61 K
Antenna Noise Temp 20° Elevation 54 K
Antenna Noise Temp 40° Elevation 53 K
Pattern -3 dB Beamwidth (in degrees at midband)
  Receive
  Transmit
  
0.92
0.83
Pattern -15 dB Beamwidth (in degrees at midband)
  Receive
  Transmit
  
1.93
1.74
Cross Polarization On Axis
  Receive
  Transmit
  
30.0 dB
30.0 dB
Cross Polarization Within 1.0 dB Beamwidth
  Receive
  Transmit
  
27.0 dB
27.0 dB
VSWR
  Receive
  Transmit
  
1.30:1
1.30:1
Port-to-Port Isolation Rx/Tx (Rx frequency)
  Receive
  Transmit
  
0 dB
-35 dB
Port-to-Port Isolation Tx/Rx (Tx frequency)
  Receive
  Transmit
  
-85 dB
0 dB
Feed Insertion Loss
  Receive
  Transmit
  
0.40 dB
0.25 dB
Output Waveguide Flange Interface
  Receive
  Transmit
  
WR-75 Flat
WR-75 Flat
Total Power Handling Capability 2.00 kW CW
RF Specification 975-3379
Ku-Band 2-Port Linear Polarized Feed (Cross-Pol Compensated)
Frequency (GHz)
  Receive
  Transmit
  
10.950 - 12.750
13.750 - 14.500
Antenna Gain at Midband
  Receive
  Transmit
  
44.90 dBi
46.50 dBi
Antenna Noise Temp 5° Elevation 69 K
Antenna Noise Temp 10° Elevation 57 K
Antenna Noise Temp 20° Elevation 50 K
Antenna Noise Temp 40° Elevation 49 K
Pattern -3 dB Beamwidth (in degrees at midband)
  Receive
  Transmit
  
0.95
0.80
Pattern -15 dB Beamwidth (in degrees at midband)
  Receive
  Transmit
  
1.99
1.68
Cross Polarization On Axis
  Receive
  Transmit
  
35.0 dB
35.0 dB
Cross Polarization Within 1.0 dB Beamwidth
  Receive
  Transmit
  
27.0 dB
35.0 dB
VSWR
  Receive
  Transmit
  
1.35:1
1.30:1
Port-to-Port Isolation Rx/Tx (Rx frequency)
  Receive
  Transmit
  
0 dB
-30 dB
Port-to-Port Isolation Tx/Rx (Tx frequency)
  Receive
  Transmit
  
-85 dB
0 dB
Feed Insertion Loss
  Receive
  Transmit
  
0.30 dB
0.20 dB
Output Waveguide Flange Interface
  Receive
  Transmit
  
WR-75 Flat
WR-75 Flat
Total Power Handling Capability 2.00 kW CW
RF Specification 975-3437
** Consult factory for Ka-band option.
*** Low axial ratio feed available.
**** Low axial ratio feed available. X-band dual polarization switch available.
(View our PDF Datasheet for more information)
Mechanical
Cross Elevation (Azimuth) Adjustment Range ±20° manual adjustment
Elevation Adjustment Range 5° to 85°
Antenna Optics Single offset, 0.74 F/D ratio
Reflector Material Nine-piece carbon fiber composite
Pedestal Structure Aluminum, stainless steel and brass
Boom Mounted HPA Loading* 40 lbs. (18 kg) mounted near reflector (HPA may limit travel)
Shipping Specifications Ruggedized Aluminum Cases
Reflector
  Receive
  Transmit
  
41” x 35” x 33” H (104 x 89 x 84 cm)
128 lbs. (58 kg)
Pedestal
  Receive
  Transmit
  
41” x 35” x 33” H (104 x 89 x 84 cm)
132 lbs. (60 kg)
Components
  Receive
  Transmit
  
47” x 31” x 20” H (119 x 79 x 51 cm)
148 lbs. (67 kg)
Feeds Consult factory for options
Environmental
Wind Loading
Operational (anchored) 30 mph (48 km/h) gusting to 45 mph (72 km/h)
Survival (with tie-downs) 60 mph (97 km/h)
  
Pointing Loss (operational winds) Maximum 2.0 dB peak Rx loss at Ku
Ambient Temperature
Operational (manual) -22° to +140° F (-30° to +60° C)
Survival -40° to +140° F (-40° to +60° C)
  
Relative Humidity (operational and survival) 0% to 100%
Solar Radiation 360 BTU/h/ft2 (1000 Kcal/h/m2)
Shock and vibration tolerant to conditions encountered during shipment by airplane, ship or truck. Atmospheric tolerant to conditions encountered in coastal regions and/or heavily industrialized areas.
* Additional information available upon request.

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