Combined Passive/Digitally Tuned VHF/UHF Antenna

30 - 512 MHz

SKU: 21-150-15

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Combined Passive/Digitally Tuned VHF/UHF Antenna

This antenna provides exceptional gain via a digitally tuned element in the 30-88 MHz band combined with a wide band passive VHF/UHF element, co-located within a single, high strength fiber glass radome.

Many years of experience in designing solid-state tuned antennas has enabled CAL’s team to provide the ultimate in performance and reliability for a frequency agile airborne blade. Close attention to environmental and EMI design considerations combined with latest composites structural technology makes the 21-150-15 suitable for helicopters and subsonic aircraft. The separate logic converter unit combines flash memory technology with MIL spec’d power supply in a MIL-STD-461 compliant package. LCU’s can be provided for most current generation digital transceivers which should be specified when ordering. 

  • Frequency Hopping - fast tune
  • Only 13" height
  • Tuned Antenna = Increased SINCGARS Radiation Efficiency
  • Tuning Controlled by Separate Logic Control Unit (LCU)
  • LCU’s compatible with latest generation multi-mode radios
  • Designed to MIL-STD-810 Environmental conditions
  • Suitable for helicopter and subsonic aircraft
  • Footprint drilling compatible with 437S-1H relay tuned antenna 
21-150-15
Model # 21-150-15
Brand Cooper Antennas
Frequency

30-88 MHz

108-174 MHz

225-512 MHz 

Gain (typical) 

≥ - 9 dBi (30 MHz)

≥ 0 dBi (88 MHz)

≥ - 1 dBi average (118 - 174 MHz)

+1 dBi average (225 - 512 MHz) 

VSWR 2.5:1 
Impedance (nominal) 50 Ohms
Power 30 Watts (35 Watts with duty cycle)
Tuning Time  Less than 60µ seconds
Polarization Vertical (when vertically mounted) 
Antenna RF Connector  N Type Female  
DC Connector PTO2 12-10P
Height 13 inches max (330 mm max)
Weight

Antenna 6.5 lbs (2.9kg) 

Fixing Holes  Suitable for 8 x 10:32 UNF or similar 
ENVIRONMENTAL
Temperature -54ºC to +80ºC 
Operating Speed Up to Mach 0.95

Finish

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

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