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These eight element directional yagis are very robust and are manufactured to a high degree of Telecommunication specifications. They give a gain of 10.0dB over a 1/2 wave dipole and by incorporating a grid reflector, provides a very good front to back ratio (25 dB) this eliminates any unwanted co-channel signals arriving through the back of the antenna, ideal for link to link communications. gain.
Gain over 1/2 wave dipole 10.0 dB
V.S.W.R. Better than 1.5:1 over the operating band
Maximum input power rating 200 Watts
Input impedance 50 Ohms
Band width +/- 4.5% of the centre frequency
Polarisation Vertical or Horizontal
Half power beam width E plane 40 degrees H plane 48 degrees
Front to back ratio 25 dB
Connection 3 metres of RG213 fitted with N-Type socket and PVC sleeve
Support boom 1 1/4" x 12g mirror polished aluminium alloy tube - HE30TF
Radiating elements 3/8" x 16g mirror polished aluminium alloy tube - HE9TF
Castings Kemloc aluminium alloy
Nuts & bolts 18/8 stainless steel and A2 Nyloc nuts
Weight at: 450MHz = 3.2 kgs
Windloading at wind velocity of 160 kph 450MHz = 13.0 kgf
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Radio Structures Ltd - Antenna
VHF Antenna - UHF Antenna - Antenna Array - Log Periodic Antenna - Corner Reflector Antenna - Colinear Antenna - End Fed Dipole - Yagi Antenna - Centre Fed Dipole - Down Fire Antenna
Tel: 01604 790005 - e-mail: sales@radiostructures.com
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