4 element 27MHz LFA Yagi (5.45m)

Tillverkare: InnovAntennas
Artikelnummer: 4 element 27MHz LFA Yagi (5.45m)
Tillgänglighet: 1-2 veckor
2.729kr
Exkl moms: 2.183kr
From 82kr

Antal

 

A 4 element  27.2-27.8MHz LFA Yagi - (can be adjusted From 26.5 - 27.5MHz to suit users preference)

The G0KSC LFA Yagi represents 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.  Hard to beat with a direct 50 Ohm feed-point and no matching losses and suppression of unwanted noise!! 

NOTE: With all our HF antennas we can custom design your element taper and element size requirements in order to cater for all weather and installation requirements 

Performance

Gain: 9.38dBi @ 27.555MHz

F/B: 31.81dB @ 27.555MHz

Peak Gain: 9.45dBi

Gain at 20m above Ground: 14.96dBi

Peak F/B: 31.99dB

Power Rating: 15kw+

SWR: Below 1.5:1 from 27.000MHz to 27.700MHz

Stacking Distance: 6.0-8.0m ( 7.0m recommended)

2 Stacked Gain @ 7m spacing: 12.12dBi

2 Stacked F/B: 26.87dB

2 Stacked Gain @ 7m Spacing 20m above ground: 17.54dBi

Boom Length: 5.45m

Weight: 7.44KG / 16.2LB

Turning Radius: 3.93m / 12.92ft

Wind Loading: 0.30 Square Metres / 3.26 Square feet

Wind Survival: 160KPH / 100MPH - (125MPH version available upon request)

Other options available if higher wind loading/survival is required.

 

Specification

This antenna is made with 3/4 inch (19.05mm) centre elements and 5/8 inch (15.88mm) outer elements with the end sections 1/2 inch (12.7mm). 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 (38.1mm) 16SWG aluminum.

OTHER TAPER SCHEDULES ARE AVAILABLE IN THIS ANTENNA, CALL OR EMAIL FOR DETAILS

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.

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. 

  • Marine grade Stainless Steel Fittings
  • Original Stauff Insulation clamps
  • Mill finished boom and elements for highest levels of accuracy

 

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Azimuth Plot

 

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Elevation Plot

 

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Single 4 element LFA up 11m above ground

 

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Single 4 element LFA up 20m above ground

 

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2 x 4 el LFA Yagi 7m apart with the bottom antenna 20m above ground

 

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The 4el 28MHz LFA Element Layout

 

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SWR

Manufactured the right way, not the cheapest way! 

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