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CD28/37/70 133-163MHZ VHF DIPOLE ANTENNA

RFI

Code: 00280934

0.1520 kg
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$83.60 inc GST
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Utilising a patented matching circuit, the CD28-37-70 antennas are end fed dipole antennas combining a durable thermoplastic housing with a flexible tapered stainless whip section resistant to knocks and bends.

  • Performance - Exhibits 3 dB improvement in performanceover a 1/4 wave whip
  • Versatile - Ground independent design allows use in alternative mounting locations
  • Rugged - The transformer circuit is housed within a high impact thermoplastic moulding which is virtually indestructible
  • Unique termination method simplifies installation and re-cabling in the field
  • Designed, manufactured and patented in Australia [Australian Patent # 596830 and 656793]

    (1) MopoleTM antennas such as the CD28 have been shown to exhibit a 3dB improvement in received signal level in the field when compared to a quarter wave whip however in pattern tests exhibit only 1.5 to 2dB over a quarter wave (equivalent to 1.5-2dBi).

This improvement in performance can be attributed to a lower radiation angle level of these ground independent antennas.

Specifications:

  • Band
 133 - 163MHz
  • Tunable Bandwidth
 4 MHz @ 1.5:1 VSWR 8 MHz @ 2.0:1 VSWR
  • Nominal Gain dBi
 3
  • Tuning
 Field tune to minimum VSWR using supplied chart
  • Power W
 50
  • Cable and Connector
 Not included, order separately. See note (2) in specsheet
  • Base
 Threaded stud mount
  • Whip Material
 17-7 PH tapered stainless steel whip with moulded base coil assembly
  • Whip Length mm
 1340
  • VSWR
 4 MHz @ 1.5:1 VSWR 8 MHz @ 2.0:1 VSWR

 

 

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