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A 7 element low-noise LFA2 Yagi Bent Element Yagi
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. This 7 element 50Mhz LFA2 is another exciting slant on the LFA design with both the last third of both the reflector and first director elements being bent towards the driver loop in order to enhance performance. Incredible levels of F/B have been achieved providing the ultimate in rear-end suppression.
This antenna has very highly suppressed lobes in both azimuth and elevation plots and therefore is ideal for very noisy city locations. If you want to beat the noise in a mid-sized 6m Antenna, this is the one for you!
Super-thick elements on this antenna for high-wind locations, wind survival 115MPH +
12.81dBi @ 50.150MHz
43.33dB @ 50.150MHz
Peak Gain: 12.85dBi
Peak F/B: 45.95dB
Power Rating: 5kw
SWR: Below 1.1:1 from 50.00MHz to 50.500MHz
Stacking Distance: 5.5 -7.5m ( 6.8m recommended)
2 Stacked Gain @ 6.8m spacing: 15.69dBi
2 Stacked F/B: 35.22dB
2 Stacked Gain @ 6.8m Spacing 10m above ground: 20.65dBi
Boom Length: 8.9m
Weight: 15Kg / 33Lbs
Turning Radius: 4.662m / 15.296ft
Wind Loading: 0.34 Square Metres / 3.66 Square feet
Wind Survival: 154KPH / 96MPH
Other options available if higher wind loading/survival is required.
This antenna is made with tapered elements 16mm centres and 13mm outer sections. 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 has a 32 section taper form 50mm, to 45mm them 40mm square with a 2mm wall aluminum. A boom guy system is provided with this antenna.
Our antennas are constructed with the best quality materials in order that the best mechanical construction can be achieved, not the cheapest and most profitable! Even a digital caliper is used (with an accuracy of .01mm) to measure the elements during production to ensure they are within 0.2mm of what they should be, ensuring they work as well as our software model predicts.
Note: Much development time has gone into our antennas, not just on basic electromagnetic design, we are able to model the effect of insulators, booms and other objects to ensure the make up of our antennas have least effect on performance and pattern degradation. More information can be found here
Single 7 element LFA2 up 10m above ground
2 x 7 el LFA Yagi 6m apart with the bottom antenna 10m above ground
2 x 7 el LFA Yagi 6.8m apart with the bottom antenna 10m above ground
The 7el LFA2 element layout
Manufactured the right way, not the cheapest way!