A Super High Gain 70MHz LFA Yagi optimised for DX applications
The G0KSC LFA Yagi is a major step forward in the development of the Yagi Antenna; it provides a low-noise front-end for your radio so you hear more weak signals. If you suffer with noise or are in a city location, this is the antenna for you. This 9 element 70Mhz LFA provides stunning performance across the whole 4m band (69.950 - 70.500MHz). Hard to beat with a direct 50 Ohm feed-point and no matching losses!!
This is an excellent stacker requiring just 6.5m spacing. See details below.
Performance
Gain:14.72dBi @ 70.200MHz
Gain at 10m above ground: 20.20dBi
F/B: 25.43dB @ 70.200MHz
Peak Gain (free space): 14.76dBi
Peak F/B: 25.81dB
Power Rating: 5kw
SWR: Below 1.14.1 from 69.950MHz to 70.500MHz
Boom Length: 10.414m
Stacking Distance: 6.56m Vertically, 7.14m horizontally
2 Stacked Gain: 17.66dBi
2 Stacked Gain 10m up above average ground: 22.70dBi
2 Stacked F/B: 26.76dB
Specification
This antenna is made with single piece 1/2 inch 18swg T6 Aluminium tube. The antenna has fully insulated elements which will ensure continuous, high performance for many years to come. Boom to mast brackets are included with all antennas which will support 2 inch (50mm) masts. Boom is 1.5 inch square 16SWG aluminum guys required and supplied.
Azimuth Plot
Elevation Plot
1 x 9el LFA at 10m above ground
2 x 9el stacked at 6.56m apart 10m above average ground
SWR
Manufactured the right way, not the cheapest way!
Where possible marine grade stainless steel fittings are used.