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Details about  19el 144MHz LFA Yagi 13.8m boom - For EME and Serious DX Applications

19el 144MHz LFA Yagi 13.8m boom - For EME and Serious DX Applications

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Item location:
Canvey Island, Essex, United Kingdom
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Last updated on  31 Jan, 2014 15:33:24 GMT  View all revisions
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Item specifics

New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is ... Read moreabout the condition
Product Type: Ham Radios
Frequency Band(s): VHF Sub-Type: Antennae & Aerials
Manufacturer warranty: 3 years

InnovAntennas Limited

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19el 144MHz LFA Yagi 13.8m boom -
Nothing comes close to the LFA!
Price: £425.95 (including 20 % tax)

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A Very Low Noise Yagi for serious DX and EME applications

144MHz LFA Yagis in an EME configuration

The G0KSC LFA (Loop fed Array) Yagi has quickly become 'the one to have' if you are looking for serious weak signal work on the bottom of the 2m band. The LFA Yagi has been specifically design to ensure the lowest levels of unwanted noise are received. The compliment of a tight, highly suppressed pattern and closed loop fed system ensure everything from rain static to man-made noise are heavily reduced.

The LFA is especially effective for EME where very low noise antennas are required and many hours development have been spent ensuring the highest levels of performance have been achieved in an antenna that is not affected by wet weather conditions. As a single, double and 4 stack system, the LFA Yagi is the one to have.

Our antennas are constructed with the best quality materials in order 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.

  1. Marine grade Stainless Steel Fittings*
  2. Original and best Stauff Insulator clamps
  3. Mill machined for pin-point accuracy throughout

If you are looking for the best of the best from both a performance and mechanical construction perspective then look no further, you have come to the right place!



Gain: 18.04dBi @ 144.100MHz

Gain: 18.05dBi @ 144.300MHz

F/B: 38.47dB @ 144.100MHz

F/B: 44.43dB @ 144.300MHz

Peak Gain: 18.07dBi

Gain at 10m above ground: 23.91dBi

Peak F/B: 48.52dB

Power Rating: 3kw

SWR: Below 1.12:1 from 143.800MHz to 144.750MHz

Boom Length: 13.780m

Weight: 12.59Kg / 27.76LB

Turning Radius: 6.888m / 22.6ft

Wind Loading: 0.37 Square Metres / 4.0 Square feet

Wind Survival: 161KPH / 100MPH

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


Stacking Distance Vertically: 4.23-4.93m (best trade-off 4.75m)

Stacking Distance Horizontally: 4.36-5.09m (best trade-off 4.85m)

Following figures calculated at 144.300MHz

2 Stacked Vertically @ 4.5m Gain: 20.90dBi

2 Stacked Vertically @ 4.75m Gain: 20.97dBi


2 Stacked Vertically @ 4.5m F/B: 44.34dB

2 Stacked Vertically @ 4.75m F/B: 45.53dB


2 Stacked Horizontally @ 4.85m Gain: 20.95dBi

2 Stacked Horizontally @ 4.85m F/B: 43.64dB


2 Stacked Horizontally @ 5.09m Gain: 21.0dBi

2 Stacked Horizontally @ 5.09m F/B: 44.49dB


4 Antennas 4.5m V x 4.85m H Gain: 23.85dBi

4 Antennas 4.75m V x 5.09m H Gain: 23.96dBi

Sky Temperature: 209.0 Kelvin @ 144.100MHz

G/T Figure: +0.71dB @ 144.100MHz



This antenna has all parasitic elements made from 1/4 inch aluminum rod. The LFA loop is constructed from 4 pieces of aluminum tube. The sections in-line with the parasitic elements are 1/2 inch while the end sections of the loop are 3/8 inch allowing the user to adjust the loop for best SWR. All elements are fully insulated from the boom held in place by high quality UV resistant, RF neutral insulators which in-turn are held to the boom via stainless steel fixings and fittings.

The boom is 1.5 inch square (38.1mm) and a boom guy is supplied with this antenna.

If you want an antenna to last and perform in all weathers without SWR or bandwidth shifting, this is it.


Azimuth Plot


Elevation Plot


Single antenna 15m above average ground





Manufactured the right way, not the cheapest way!

* Where possible marine grade stainless steel components are used.

  InnovAntennas use the very latest software design tools and optimisation methods (Particle Swarm Optimisation) in order to achieve the very highest possible performance characteristics.

Other companies just don't publish polar plots and with good reason! We are proud at just how good our antennas look and perform and for this reason, azimuth, elevation and SWR plots for each and every antenna are published.
    We offer a wide range of payment options including :
  • Paypal
  • Credit / Debit Card
  • Cheques
  • Postal Orders
  • Bank Transfer

We offer discount on multiple purchases postage costs so please get in touch with us.

We can also accept collection for most items.

  With 100% feedback from over 1000 transactions we are extremely proud of our customer services and will do all we can to make sure the customer is fully happy.

If you have any queries or problems with an order please don't hesitate to contact us and we will try to resolve your problem promptly.

We ask that customers dont leave negative feedback before giving us a chance to fix any problems you may be having.
    Telephone : 0800 0124 205 (UK)
                    888 9988 541 (USA)

Email us: sales@innovantennas.com

Address UK : InnovAntennas Limited
                     Unit 1, Point Industrial Estate, Point Road,
                     Canvey Island
                     SS8 7TJ

Address USA : 566 West Crete Circle, Unit 1
                       Grand Junction


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Returns accepted if items supplied other than those stated in the advert.
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Seller assumes all responsibility for this listing.

Postage and packaging

Item location: Canvey Island, Essex, United Kingdom
Postage to: Worldwide
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VAT price: 20.0% (included in the listed price).
If you have questions about this VAT, please contact the seller. The actual VAT requirements and rates may vary depending on the final sale.

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