RFI UHF Side Mounted Dipole 400-520MHz


Key Features


  • Tuned to full bandwidth

  • Unity gain

  • All welded, full folded dipole construction

  • Easily mounted and installed with single clamps.




  • The SMD4-67 is of all welded aluminium construction

  • The feed point is protected by an ABS cap, with the internal PTFE based cable construction providing excellent intermodulation performance (-150dBc)

  • The stainless steel SMD41-67 is electrically identical to its aluminium counterpart and is recommended for corrosive environments, this antenna is available on request

  • All of the SMD4 series antennas are directly DC grounded for superior lightning protection and the reduction of precipitation static noise.


Specifications / Frequency


Network Compatibility
UHF 400-520MHz
0dBd (Unity)


Electrical Specifications


  • Frequency Range: 400-420MHz

  • Input Impedance: 50Ω

  • VSWR: <1.5:1 (14dB)

  • Vertical Beamwidth: 70° (typical, mount dependent)

  • Horizontal Beamwidth: 220° (typical, mount dependent)

  • Passive IM 3rd Order (2x20W): -150dBc

  • Radiation: Dipole Maximum Power: 500Watts


Mechanical/Environmental Specifications


  • Construction: Fully welded aluminium, alodined finish

  • Cable: Short 9142 Durathene tail

  • Connector: 4.3-10 Female connector

  • Mount: None Supplied - Recommend UNV Clamp

  • Wind rating: >240km/hr

  • Weight: 0.3kg

  • Dimensions: Enquire





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Brand RFI
Shipping Weight 0.0450kg
Shipping Width 0.250m
Shipping Height 0.080m
Shipping Length 0.300m
Shipping Cubic 0.006000000m3