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Wideband UHF Spring-Mounted Vehicular Antenna

SKU: 20-30-40-4

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Wideband UHF Spring-Mounted Vehicular Antenna

 The 20-30-40-4 is a high performance, spring mounted wide band UHF antenna intended for vehicular, ship borne or fixed shelter installations.

When vehicular mounted, its spring base minimizes impact damage and also allows for tie down stowage.

The antenna is designed as a center fed dipole, with its lower element in combination with ferrite decoupling of the feed cable acting as an RF choke to minimize pattern corruption due to differing mounting arrangements.

Lossless matching and the geometry of the antenna feed arrangement combine to produce a very efficient UHF antenna covering the entire frequency band of 225 - 512 MHz.

  • Lightweight
  • Spring Mounted CECOM base
  • Robust construction
  • 100 Watts CW
  • 1-2 dBi Gain through band
  • Designed to MIL-STD-810 environmental conditions
  • Supplied in Desert Sand or NATO Green
  • Ground plane independent 
20-30-40-4
Model # 20-30-40-4
Brand Cooper Antennas
Frequency 225 - 512 MHz 
Gain (typical) 1-2 dBi through band 
VSWR ≤ 2.5:1
Impedance (nominal)  50 Ohms
Power 100 Watts CW
Polarization Vertical
Antenna RF Connector N Female
Total Height 46.5 inches (1181mm) 

Element Diameter

  • Antenna
  • Base

 

  • 2.25 inches (57mm)
  • 5.5 inches (140mm) 
Weight 6.9 lbs (3.14kg) 
Mounting 4 holes on 4.5 inches (114mm) circle to CECOM standard pattern 

Finish

  • Antenna - Urethane Desert Sand and Lusterless black spring 
  • Other finish options are available.
  • Please specify finish required when ordering.
Datasheet:

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