RFI YB9-65 400-420MHz UHF Yagi Antenna


Key Features


  • Fully welded 9 element construction

  • Narrow beamwidth & high front to back ratios effective in reducing interference

  • Can be configured in stacks or bays for higher gain applications

  • Short low loss cable tail with N-female connector

  • Australian designed & manufactured.




  • The YB9-65's feed element antenna is of full folded dipole construction thus offering maximum bandwidth and reliability

  • The dipole element is welded to the boom to ensure low intermodulation performance and maximum durability

  • The passive elements are through mounted to the circular boom section and welded at each side to further minimise the potential for both corrosion and generation of intermodulation products

  • The alodined protective finish provides a conductive surface to ensure effective earthing of the antenna when mounting

  • Constructed with 2 to 16 elements, YB Series Yagi antennas offer a choice of gain and beamwidth characteristics and can be configured in stacks or bays for higher gain applications in either horizontally or vertically polarised systems

  • Termination is via an 'N' female coaxial connector fitted to a short Durathene cable tail

  • Durathene polyethylene jacketed cable provides superior resistance to weathering and abrasion and is less susceptible to bird attack than standard PVC sheathed cables

  • This Yagi antenna rests at ground potential to provide excellent lightning protection and reduced precipitation static noise.


Specifications / Frequency


Network Compatibility
UHF 400-420MHz
11dBd (13.15dBi)


Electrical Specifications


  • Frequency Range: 400-420MHz

  • Input Impedance: 50Ω

  • VSWR: <1.5:1 (14dB)

  • Vertical Beamwidth: 46 degrees

  • Horizontal Beamwidth: 54 degrees

  • Front to Back Ratio: >18dB

  • Passive IM 3rd Order (2x20W) dBc: please enquire

  • Radiation: Directional

  • Maximum Power: 100Watts




  • Construction: Fully welded aluminium, alodined finish

  • Cable: Short 9008 Durathene tail

  • Connector: N Female

  • Mount: None Supplied - recommend RFI Bracing Harness

  • Wind rating: >240km/hr

  • Weight: 1.2kg

  • Dimensions: 2000mm (L)





 n female connector


N Female Connector [pictured]


This antenna has an N Female connector for attaching your required length of cable.




A heads up!


over-size item symbol sign


  • Special Delivery Information: This product is 2m in length and can only be delivered by a courier (not Australia Post). As such we cannot accept a PO Box

  • Please provide an address where someone will be present to sign for the package.




Read More







RFI antennas and aerials cellular UHF and VHF




SKU YB9-65
Brand RFI
Shipping Weight 4.0000kg
Shipping Width 0.450m
Shipping Height 0.320m
Shipping Length 1.900m
Shipping Cubic 0.273600000m3