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VHF Ground Independent Mopole 138 - 163 MHz - MBC Base


The CD28 series are ground independent Mopole™ antennas ideal in "alternative" mounting positions such as gutter, mirror or trunk mounts.

Availability: In stock

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CD28 Series

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  • CD28 Series
CD28-37-50 Features:

Utilising a patented matching circuit, the CD28-37-50 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 performance over 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 ¼ wave whip however in pattern tests exhibit only 1.5 to 2dB over a ¼ wave (equivalent to 1.5-2dBi). This improvement in performance can be attributed to a lower radiation angle level of these ground independent antennas.
(2) Available preterminated with 5m 8058 RG58C/U. Use -73 or -53 suffix to replace -70 or -50 suffix
Band 138 - 163MHz
Tunable Bandwidth 4 MHz @ 1.5:1 VSWR 8 MHz @ 2.0:1 VSWR
Nominal Gain dBq 3
Tuning Field tune to minimum VSWR using supplied chart
Power W 50
Cable and Connector Not included, order separately. See note (2)
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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