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UD Wideband Cardioid Antennas
UHF Cardioid Arrays
UD WB Series (Band IV/V)

Rev : 01 | Rev date : 28 Feb 2017
The UD wideband series of vertically polarized antennas are ideal for low power UHF TV transposer applications as well as higher power applications.  These dipole antennas are designed for broadband operation.
Construction is of aluminum and the antenna is housed within a fibreglass radome that has been designed to survive wind speeds of 240 km/h (150mph) to AS1170.2:2011. A range of dipole arrays, 4, 8, 12 and 16 bay, are designed for various gain requirements.
Dual inputs are standard on high power models and custom VRPs are available as options. Refer to external document attachments for detailed specifications.  Contact RFS for more information.


  • Broadband design for Digital TV or multi-channel use
  • Designed for maximum corrosion protection
  • Vertically polarized
  • Operation: Pressurized or unpressurized
  • Low wind loading
  • Specific designs for higher wind speeds on request
  • Dual input models, cophased or quadrature fed

4UD-HP Cardioid Antenna under test

Technical features


Product LineAntenna TV
Product TypeBand IV/V (UHF) Cardioid Antennas

Electrical Specifications

Frequency Range MHz470 - 790
Azimuth Radiation PatternDirectional
Return Loss dB> 20 (470-790 MHz)
Impedance (unbalanced) Ω50

Mechanical Specifications

Number of ChannelsMulti-channel
Mounting (Standard) mm (in)Flange base on 323mm radome


Material - RadomeFibreglass

2UD Views

4UD-HP Views

4UD Views

External Document Links