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Multi-band Satcom, Communication & GPS Antenna

240 to 400 MHz, 30 to 512 MHz & L1/L2 GPS

SKU: 21-50-82

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Multi-band Satcom, Communication & GPS Antenna

The 21-50-82 is a rugged multifunction VHF/UHF Satcom and GPS antenna designed for airborne applications. A high strength vertical shell houses 30 - 512MHz linear elements that can be used for V/UHF line of sight “LOS” communications or UHF Satcom at low angles of elevation. An active GPS element, DC powered through the coaxial connector provides circular polarization for both L1 & L2 frequency bands. This vertical shell also supports a pair of horizontal elements containing crossed dipoles connected to provide high angle, circularly polarized UHF Satcom coverage. 

  • Aero-dynamic design
  • Light weight / high strength
  • Fully environmentally sealed
  • Hi and Lo angle UHF Satcom coverage plus Active GPS
  • Full 30-512 MHz LOS communications
  • AN/ARC-210, AN/ARC-231, DAGR compatible
  • Designed to MIL-STD-810 Environmental Conditions  
21-50-82
Model # 21-50-82
Brand Cooper Antennas
Frequency

Hi Angle

Lo Angle

 

 

 

GPS

240 - 400 MHz

30 - 512 MHz

108 - 174 MHz

225 - 512MHz

1565-1586

1217-1238 MHz 

Gain

Hi Angle

Lo Angle

 

 

 

 

GPS

Hi Angle :

+6 dBiC @ zenith

Lo Angle :

≥ -19 dBi @30 MHz

≥ -9 dBi @88 MHz

≥ -1 dBi (average) over 118 -174 MHz

≥ 0 dBi to +3 dBi over 225 - 512 MHz

≥ 26.5 dB ±3 dB (pre-amp)

≥ +3dBiC (Antenna) @ Zenith

VSWR

Hi Angle

 

Lo Angle

 

GPS

≤ 1.75:1 (240 - 320 MHz) 

2.0:1 max (320 - 400 MHz)

≤ 2.5:1 (30 - 450 MHz) 

≤ 3.0:1 (450 - 512 MHz)

≤ 1.5:1 

Impedance (nominal) 50 Ohms for both ports 
Power

Hi Angle

Lo AnglE

 

 

GPS

200 Watts (240 - 400 MHz )

50 Watts (30 – 88 MHz) 

50 Watts (118 - 174 MHz )

200 Watts (225 - 512 MHz)

1 watt

Polarization

Hi Angle

Lo Angle

GPS

Right Hand Circular

Vertical

Right Hand Circular 

Antenna RF Connector

Hi Angle

Lo Angle

GPS

N Female

TNC Female 

TNC Female 

Height 12.5 inches max (317.5mm)
Wingspan 15 inches max (381mm) 
Weight 9 lbs (4.09 kg) 
Fixing Holes 8 x Ø 0.205 inches (5mm) holes, counter bore Ø 0.43 inch (10.9mm)

Finish

  • Antenna - Urethane Lusterless Black
  • Baseplate - Unpainted
  • Other finish options are available.
  • Please specify finish required when ordering.
Datasheet:

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