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3 element 18MHz LFA Yagi (5m)
£251.96 (including 20 % tax)
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A 3 element High Performance LFA 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 while at the same time maximising all round performance. This compact 3 element 18Mhz LFA provides stunning performance across the whole 17m band (18.00 - 18.200MHz). Hard to beat with a direct 50 Ohm feedpoint and no matching losses and suppression of unwanted noise!!
More information on the LFA Yagi can be found here.
Gain: 8.53dBi @ 18.110MHz
F/B: 18.38dB @ 18.110MHz
Peak Gain: 8.63dBi
Gain at 17m above Ground: 13.76dBi @ 18.110MHz
Peak F/B: 19.21dB
Power Rating: 5kw
SWR: Below 1.3.1 from 18.000 - 18.200MHz
Boom Length: 4.954m
Stacking Distance: 6 -14m (10m recommended)
2 Stacked Gain @ 10m spacing: 11.41dBi
2 Stacked F/B: 15.83dB
2 Stacked Gain @ 10m Spacing 17m above ground: 16.37dBi
Weight: 9.15Kg / 20LB
Turning Radius: 4.941m / 16.2ft
Wind Loading: 0.45 Square Metres / 4.85 Square feet
Wind Survival: 160KPH / 100MPH - A 125MPH (HD) version is available upon request
Other options available if higher wind loading/survival is required.
This antenna is made with elements that taper from 7/8 inch (22.23mm) then 3/4 inch (19.05mm) to 5/8 inch (15.88mm) tg 1/2 inch (12.7mm) and 3/8 inch (9.525mm) outer elements. 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.
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, this ensures they work as well as our software model predicts (VHF).
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 3 element LFA up 17m above ground
2 x 3 el LFA Yagi 10m apart with the bottom antenna 17m above ground
The 17m LFA element layout
Manufactured the right way, not the cheapest way!
*Where possible marine grade stainless steel is used.
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