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High Gain Digitally Tuned VHF/UHF + UHF/FM Antenna

30 - 512 & 512 - 945 MHz

SKU: 21-500-01

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High Gain Digitally Tuned VHF/UHF + UHF/FM Antenna

The 21-500-01 tuneable antenna provides exceptional gain in the 30 - 88 MHz SINCGARS band compared to similarly sized passive antennas, and maintains optimum performance up to 512 MHz. It also provides frequency coverage from 512 to 945 MHz on a separate connector, independent of tuning to operate in the UHF/FM public services band.

Many years of experience in designing solid-state tuned antennas has enabled our engineers to provide the ultimate in performance and reliability for a frequency agile airborne blade. Close attention to environmental, EMI and lightning protection design considerations combined with latest composites structural technology makes the 21-500-01 suitable for helicopters, subsonic and supersonic aircraft under demanding tactical conditions. The separate logic converter unit combines flash memory technology with MIL spec’d power supply in a MIL-STD-461 compliant package

  • Frequency Hopping - fast tune
  • Lightning protected
  • Less than 10" height
  • Tuning Controlled by Separate Logic Control Unit (LCU)
  • LCU’s compatible with all versions of ARC210
  • Design to MIL-STD-810 Environmental conditions
  • Suitable for helicopters and fixed wing aircraft 
21-500-01
Model # 21-500-01
Brand Cooper Antennas
Frequency 30-88 MHz, 108-174 MHz, 225-512 MHz, 512-945 MHz 
Gain (typical) 

≥ - 12 dBi (30 MHz)

≥ - 3 dBi (88 MHz)

≥ - 2 dBi (108 MHz)

≥ 0 dBi (174 MHz)

+ 2 dBi average (225-512 MHz)

0 dBi average (512-945 MHz)

VSWR

≤ 2.5:1 (VHF/UHF)

≤ 2.0:1 (UHF)

Impedance (nominal) 50 Ohms
Power

50 Watts UHF

30 Watts VHF

Tuning Time  Less than 50μ seconds 
Polarization (nominal)  Vertical (when vertically mounted) 
Antenna RF Connector

TNC Female (VHF/UHF)

N-type (UHF/FM) 

Antenna DC connector  Multi pin D38999
Height 9.3 inches (236mm) max 
Weight 4 lbs (1.81kg) 
Mounting Hole  10 x Ø 10:32 UNF holes or similar 
Temperature -54ºC to +71ºC 

Finish

  • Antenna - Urethane Lusterless Grey
  • Base Plate - Unpainted
  • Other finish options are available.
  • Please specify finish required when ordering.
Datasheet:

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