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RFI CD51-68-73 UHF Mopole Antenna 450-520 MHz, 4 dB, Stud Mount, 5m, No Connector

RFI CD51-68-73 UHF Mopole Antenna 450-520 MHz, 4 dB, Stud Mount, 5m, No Connector

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Item ID:
168015594
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Options/MPN:
CD51-68-73
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The RFI CD51-68-73 UHF 4 dB Mopole Antenna is a versatile, high-performance antenna designed for UHF communication in the 450–520 MHz range. Built with a stud-mount design and supplied with a 5-meter cable (no connector).
Regular price $77.05
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Product Description

RFI CD51-68-73 UHF 4 dB Mopole Antenna (450-520 MHz) with Stud mount, 5m cable and no connector is versatile and popular antenna. The CD50/CD51 antennas provide performance with a largely omni-directional pattern when they are mounted on a vehicle gutter or similar position. This is due to the low angle of radiation inherent in the dipole antenna pattern, resulting in a typical 4.0 dB improvement in performance compared to a 3-wave whip in the center of a metal roof.

Product Features:

  • This antenna’s end-fed transformer design ensures consistent electrical performance and efficient signal transmission.
  • The patented feed assembly simplifies installation by using a trimmed coaxial cable dielectric for matched termination.
  • Its ground-plane-independent structure allows versatile mounting away from central roof locations without performance loss.
  • The flexible nylon whip construction enhances resilience and safety in mobile or high-impact environments.
  • It delivers high-performance omnidirectional coverage with 4 dB of gain across the 450–520 MHz band.
  • The virtually indestructible base coil provides long-lasting durability even under harsh conditions.
  • This design is protected by Australian Patents #596830 and #656793, ensuring advanced proprietary technology.
  • The stud-mounted configuration enables quick termination, re-termination, and tuning in the field.

Application Areas:

  • This antenna is ideal for mobile communication systems in utility, emergency services, and transportation fleets.
  • It is well suited for mining, construction, and industrial environments where durability and signal quality are essential.
  • The antenna is compatible with two-way radios operating in the UHF 450–520 MHz spectrum.
  • It is recommended for installations that require flexible mounting options and a robust, maintenance-free antenna solution.

In the Box:

  • 1 x RFI CD51-68-73 UHF 4 dB Mopole Antenna (Stud-Mount)
  • 1 x 5m Coaxial Cable (no connector)
  • 1 x Threaded Stud and Nut Mounting Assembly

Mounting Arrangements:

  • CD50-xx-73 and CD51-xx-73: Mount via a threaded stud and nut assembly, allowing easy termination, tuning, and re-termination in the field.
  • CD50-xx-53 and CD51-xx-53: Mate with the MBC coaxial base, providing an internal, permanent connection in a completely sealed unit.

Documents:

RFI CD51 UHF Antenna - Datasheet RFI CD51-68 UHF Antenna - Installation Guide

Product Specifications

MPN CD51-68-73
Antenna application Vehicle Antenna
Antenna cable type RG58C/U
Antenna configuration SISO
Antenna port connectors No connector
Antenna type Ground Independent, Omni
Band 450 - 520MHz
Brands RFI
Cable length m 5
Coverage type Omni-directional
Frequency band UHF 380-520 MHz
Frequency mhz 450-520
Height 3
Installation type Vehicle mounting
Length 36
Low pim No
Max frequency mhz 520
Max gain dbd dbi 4
Mimo support No
Min frequency mhz 450
Min gain dbd dbi 4
Mount supported Stud mount
Mount supported detailed Stud mount
Mounting Threaded Stud
No of antenna ports 1
Nominal gain dbi 4
Power w 50
Technologies supported UHF
Tuned bandwidth 13 MHz @ <1.5:1 VSWR
Tuning Field tune to minimum VSWR using supplied tuning chart
Vswr 13 MHz @ <1.5:1 VSWR
Whip length mm 360
Whip material Copper braid element in flexible nylon tubing
Width 3