9 elements Yagi by G0KSC OWL 12,5 Ohm

It is modified for me great design by Justin G0KSC ( G0KSC website). Many thanks Justin for this great work!

G A L L E R Y

9el 12,5Ohm Yagi on 4,9m boom (20x20mm), fully insulated elements 6mm alu tube, radiator 12mm.

Parameters on 144.1MHz (Single Yagi)
Gain: 14,34dBi (12,17dBd)    Front/Back: 29dB    Temperature: 228K    G/T: -9,24dB

Parameters on 144.3MHz (Four Yagis in H config):
Stacking:2.88m V x 3.1m H    Gain: 20.09dBi    Temperature: 224.1 K    G/T: -3.41dB   

  
Click to zoom

3D pattern 1
3D pattern 2
3D pattern 3

7-3-2010
Symetrical Impedance Transformer with Pawsey stub matching
Made with Belden H-1000.    Details here on G0KSC www

26-03-2010
I bought element clamps for new G0KSC Yagi. I will receive it from Lucjan SQ9VPA (vpa-systems)
Details here on G0KSC www

1-04-2010
I receive a parcel from Lucjan sq9vpa with clamps. Clamps for 12mm and 6mm produced by Aegi Italy
6-04-2010
I bought aluminium rods and square 20x20mm for the boom. I also cut this rods to correct lenght.

Next details soon