These eight element VHF directional yagis are very robust and manufactured to a high degree of Telecommunication specifications. They give a gain of 10.0 dB over 1/2 wave dipole and can withstand a maximum input power rating of 200 watts. The dipole element is made from one piece of tube, thus removing potential high resistance points and the balun is completely seal moulded in black carbon-loaded polyethylene to protect the internal electrical connections. These antennas can be stacked and fed in phase with a matching harness for increased 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% of the centre frequency
Polarisation Vertical or Horizontal
Half power beamwidth E plane  40 degrees    H plane  50 degrees
Front to back ratio 20 dB
Connection 3 metres of RG213 fitted with N-Type socket and PVC sleeve
Support boom 1 1/4" x 10 swg aluminium alloy tube - HE30TF
Radiating elements 3/4" x 16 swg aluminium alloy welded construction grade HE30TF
Castings Kemloc aluminium alloy
Insulator Black carbon-loaded polyethylene
Nuts & bolts 18/8 stainless steel and A2 Nyloc nuts
Weight @ 165 MHz 5.0kgs
Windloading @ 165 MHz 20kgf @ wind velocity of 160kph

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Radio Structures Ltd - Antenna

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Tel: 01604 790005 - e-mail: sales@radiostructures.com