View PDF brochure for GPS/UHF/MUOS & VHF/UHF LOS AntennaDatasheet

GPS/UHF/MUOS & VHF/UHF LOS Antenna

240 to 385 and 30 to 512 MHz L1 & L2

SKU: 21-54-46

Contact us for latest price
Sold Out - Backorder Available


Calculate Shipping



Freight to be quoted - $0.00
As the size and weight is not normally known we use several freight carriers to ensure you get the best price. Complete your order or quote and we will get back to you with the available freight options.

GPS/UHF/MUOS & VHF/UHF LOS Antenna

Combining highly efficient “droopy dipoles” with a wide band, line-of-sight linear element, the 21-54-46 provides Hi-Lo angle UHF Satcom from a single connector plus a separate VHF/UHF/EPLRS element in a single airborne antenna. In addition, this antenna includes an L1/L2 stacked patch active GPS element.

Element shaping and matching of the circularly polarized dipoles provides UHF Satcom coverage right through the UHF and MUOS band with useable radiation and gain typically from zenith down to 20 degrees or less above the horizon. The robust design is suitable for helicopter and fixed wing aircraft operating up to 450 knots. 

  • Suitable for helicopter, vehicular, fixed and mobile applications
  • Covers UHF Satcom and MUOS as well as VHF/UHF Line of Sight (LOS) and Active GPS
  • All Weather operation  Wide Angle pattern coverage without Hi-Lo switching
  • 200 Watts CW Power handling for Satcom
  • Designed to MIL-STD-810
  • SINCGARS performance exceeds AS-3191 per MIL-DTL-85670C 
21-54-46
Model # 21-54-46
Brand Cooper Antennas
Frequency

LOS

Satcom

GPS

30 - 512 MHz

240- 385 MHz

1565 - 1586 and 1217 - 1238 MHz 

 

LOS

 

 

 

Satcom

 

GPS

 

≥ -22 dBi @ 30 MHz

≥ -9 dBi @ 88 MHz

≥ -3 dBi (average) 118 - 174 MHz

≥ 0 dBi to +3 dBi 225 - 512 MHz  

≥ +6.5 dBiC @ Zenith

≥ 0 dBiC @ all elevation angles above +25°

≥ +3 dBiC @ Zenith 

+33 dB (pre-amp) 

VSWR

LOS

 

Satcom

GPS

30-449 MHz ≤ 2.5:1

450-512 MHz ≤ 3:1

≤ 1.75:1

≤ 1.5:1 (antenna) 

Impedance (nominal) 50 Ohms
Power

LOS

 

Satcom

GPS

50 Watts VHF

200 Watts UHF

200 Watts

1 Watt 

Polarization

LOS

Satcom

GPS 

Linear

Right Hand Circular (maximum at zenith)

Right Hand Circular (maximum at zenith)

Connector

 LOS

Satcom

GPS 

TNC Female

N Female

TNC Female

DC Power for GPS Pre-Amp  2.5 - 24 V <50 milliamps Typical
Overall Height (max)  12 inches 
Weight (max) 6.1 lbs max

Finish

  • Antenna - Urethane Lusterless Grey FED-STD 595 36173
  • Other finish options are available.
  • Please specify finish required when ordering.
Datasheet:

More From This Category


Adaptive Handheld VHF/UHF Antenna

Adaptive Handheld VHF/UHF Antenna

SKU: TA30512H

Adaptive Manpack VHF / UHF Antenna

Adaptive Manpack VHF / UHF Antenna

SKU: TA30512B

ATC/SSR Antenna

ATC/SSR Antenna

SKU: 20-40-72

Broadband Dipole Antenna

Broadband Dipole Antenna

SKU: 20-20-08

Broadband Dipole Antenna

Broadband Dipole Antenna

SKU: 20-20-08-1

Broadband Dipole Antenna

Broadband Dipole Antenna

SKU: 20-20-100