RFI 15dBi 700-890MHz YB815 Yagi Directional Antenna


SKU: YW15-6989 Categories: ,

Key Features

  • Covers both Telstra Next-G and 4GX
  • Fully welded construction for maximum performance and reliability
  • 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 manufactured and warrantied.


  • 15dBi Yagi are ideal antennas for a diverse range of environments
  • The 700-890MHz RFI 15dBi Yagi is suitable for rural customers seeking a low cost method of connecting to the new Telstra 4GX 700MHz network at a long range, without going to the cost of installing a large panel antenna
  • This antenna also has fantastic performance on the Telstra Next-G network, and is a good choice for pairing with the Nextivity Cel-Fi Go
  • It’s important to note that 4G speeds will be slower through this antenna than using a MIMO antenna (approximately half the speed of a MIMO connection)

This antenna will not permit Carrier Aggregation – if this is important to you, we would encourage you to look at the following two antennas:

Additional Information

  • Yagi covers both Telstra Next-G (850MHz), and Telstra 4GX (700MHz)
  • RFI was challenged to design a high gain antenna to cover both Telstra Next-G (850MHz), and Telstra 4GX (700MHz)
  • Naturally, Yagi antennas can only be tuned for one particular band (i.e. either 700 or 850MHz), however by compromising on VSWR and accepting a lower electrical efficiency, the antenna bandwidth is widened to the full 698-890MHz required to operate on both bands
  • This clever design is a credit to RFI’s brilliant engineers.
Specifications / Frequency
Network Compatibility
Telstra 4GX (700MHz)
Optus 4G+ (700MHz)
Telstra Next-G™ (850MHz)
All other networks
not compatible

Electrical Specifications

  • Frequency Range: 698-890MHz
  • Input Impedance: 50Ω
  • VSWR: <1.8:1
  • Vertical Beamwidth: 35 degrees
  • Horisontal Beamwidth: 38 degrees
  • Front to Back Ratio: >20dB
  • Passive IM 3rd Order (2x20W) dBc: <-150
  • Radiation: Directional
  • Maximum Power: 100Watts


  • Construction: Fully welded aluminium, alodined finish
  • Cable: 500mm RG142
  • Connector: N Female
  • Mount: Integrated
  • Wind rating: 189km/hr
  • Weight: 1.0kg
  • Dimensions: 1552mm (L)
  • This antenna has an N Female connector for attaching your required length of cable
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