Skip to product information
1 of 1



RFI CD50-68-73 UHF Ground Independent Mopole Antenna (450-520MHz) - Threaded Stud -S/Steel with 5m 8058 RG58C/U

RFI CD50-68-73 UHF Ground Independent Mopole Antenna (450-520MHz) - Threaded Stud -S/Steel with 5m 8058 RG58C/U

Regular price $92.00 AUD
Regular price Sale price $92.00 AUD
Sale Sold out
Tax included. Shipping calculated at checkout.

In stock, ready to ship
View full details

RFI CD50-68-73 UHF Ground Independent Mopole Antenna (450-520MHz) - Threaded Stud -S/Steel with 5m 8058 RG58C/U

When the CD50-68-73 gets mounted on a vehicle gutter or similar position, this UHF MopolesTM provide optimum performance with a largely omnidirectional pattern. Due to the low angle of radiation inherent in the dipole antenna pattern, a 4.0 dB improvement in performance is typical when compared to a 3 wave whip in the centre of a metal roof. 

The end fed design of the UHF MopolesTM incorporates a truly unique transformer in the base section. In this patented feed assembly, the dielectric of the coaxial feeder cable is trimmed to a set length and then introduced into the coil in termination. The result is a precisely matched feed which is so consistent that tuning to frequency from a chart becomes a matter of course.

CD50 antennas have an elegant and durable tapered stainless steel whip section. 

The CD50-68-70 mounts via a threaded stud and nut assembly. The antenna can be easily terminated, tuned and re-terminated in the field using the instructions supplied. Its patented design allows the coaxial cable to be replaced in the field without specialised tools or soldering.     


• Versatile - Ground plane independence allows alternative mounting locations
• Performance - High performance and largely omni-directional pattern when not centre roof mounted
• Convenient - Patented design allows termination or retermination in seconds
• Stainless steel whip or flexible nylon whips cater to individual needs
• Durable - Base coil is virtually indestructible
• Unique transformer design
• Australian Patents #596830 and #656793  


Band 450 - 520MHz
Tunable Bandwidth 13 MHz @ <1.5:1 VSWR
Nominal Gain dBi 4
Tuning Field tune to minimum VSWR using supplied tuning chart
Power W 50
Cable and Connector Not included, order separately. See note (2) below
Whip Material 17-7 PH Stainless steel
Suggested Installation Bracket
Whip Length mm 395
VSWR 13 MHz @ <1.5:1 VSWR
Mounting Threaded Stud



 (1) Mopole antennas such as the CD50/CD51 exhibit a 4dB improvement in performance over a ¼ wave whip but in pattern tests deliver only 2.0 to 2.5dB of actual gain. This improvement in performance can be attributed to a lower angle of radiation and is of particular benefit to users in rugged terrain conditions and in heavily built up city areas.
(2) Available pre-terminated with 5m RG58 cable. Use -73 or -53 suffix to replace -70 or -50 suffix.



CD50/CD51 Technical Data Sheet
CD50/CD51 Installation Guide