RFI VHF 3dB Ground-Independent Mopole Antenna 138-163 MHz; MBC Base Without Cable

RFI VHF 3dB Ground-Independent Mopole Antenna 138-163 MHz; MBC Base Without Cable

These are ground-independent Mopole™ antennas ideal in “alternative” mounting positions such as gutter, mirror or trunk mounts.

$59.86

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Description

Features:
– Utilizing 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 molding 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]

Mopole 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.
Available pre-terminated with 5m 8058 RG58C/U. Use -73 or -53 suffix to replace -70 or -50 suffix

 

Specifications:

Nominal Gain dBq 3
Packaging Plastic Bag
Whip Material 17-7 PH tapered stainless steel whip with moulded base coil assembly
Whip Length mm 1340
Cable And Connector Not included, order separately. See note (2)
Tuning Field tune to minimum VSWR using supplied chart
Frequency 138-163 MHz
Nominal impedance 50
Power w 50
Polarisation Vertical
VSWR 4 MHz @ 1.5:1 VSWR 8 MHz @ 2.0:1 VSWR
Tuned bandwidth 4 MHz @ 1.5:1 VSWR 8 MHz @ 2.0:1 VSWR
Frequency MHz 133 – 163
Brand RFI

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