SKU:CD50-65-73
RFI CD50-65-73 UHF Grd Ind. Mopole 380-440MHz-S/Steel with 5m 8058 RG58C/U
RFI CD50-65-73 UHF Grd Ind. Mopole 380-440MHz-S/Steel with 5m 8058 RG58C/U
RFI CD50-65-73 UHF Grd Ind. Mopole 380-440MHz-S/Steel with 5m 8058 RG58C/U - Whip Length 395mm
When the CD50-65-73 gets mounted on a vehicle gutter or similar position, these 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.
There are two styles of mounting arrangements offered. The CD50-xx-70 and CD51-xx-70 versions mount 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.
The CD50-xx-50 and CD51-xx-50 versions mate with the MBC coaxial base providing an internal, permanent connection in a completely sealed unit. The MBC base is easy to install and allows the entire antenna to be removed and replaced at will.
Features:
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Versatile - Ground plane independence allows alternative mounting locations
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Performance - High performance and largely omni-directional pattern when not centre roof mounted• Convenient - Patented design allows termination or re-termination in seconds
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Stainless steel whip or flexible nylon whips cater to individual needs
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Durable - Base coil is virtually indestructible
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Unique transformer design
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Australian Patents #596830 and #656793(1) Mopole™ antennas such as the CD50 and 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 preterminated with 5m 8058 RG58C/U. Use -73 or -53 suffix to replace -70 or -50 suffix.
Band | 380 - 440MHz |
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 | 5M cable no connector. See note (2) |
Whip Material | 17-7 PH Stainless steel |
Suggested Installation | Bracket |
Whip Length mm | 395 |
VSWR | 13 MHz @ <1.5:1 VSWR |
Mounting | Threaded Stud |
Documentation
CD50/CD51 Technical Data Sheet