My current 6m antenna here @ M0BEW
Performance, details, construction and comments.
Performance.
Gain: 10.63dBi @ 50.150MHz
F/B: 29.52dB @ 50.150MHz
Peak Gain: 10.68dBi
Peak F/B: 30.02dB
Power Rating: 5kw
SWR: Below 1.1:1 from 50.00MHz to 50.700MHz
Stacking Distance: 3.9-5.1m ( 4.70m recommended)
2 Stacked Gain @ 4.70m spacing: 13.45dBi
2 Stacked F/B: 27.53dB
2 Stacked Gain @ 4.70m Spacing 10m above ground: 18.67dBi
Boom Length: 4.354m
Weight: 4.73Kg / 10.43LB
Turning Radius: 2.667m / 8.78ft
Wind Loading: 0.20 Square Metres / 2.16 Square feet
Wind Survival: 253KPH / 157MPH
Specification.
Named after Kerry G8VR who uses 3 x 5el 50MHz LFA-VR antennas.
Boom is 1.25 inch square aluminum.
12.7mm centre elements and 9.525mm outer elements.
Fully insulated elements.
A direct 50 Ohm feed-point. No matching.
Boom to mast bracket to fit upto 50mm masts.
Marine grade Stainless Steel Fittings.
Construction.
Comments.
I have used this antenna now for around a month and feel very happy with the performance.
I choose this particular boom length as a trade off between gain and beamwidth for general use.
For this purpose it's perfect.
Tim M0BEW.
