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Yagi Antennas for Sale

Mono-Bander

Dual-Bander

Multi-Bander

Dipole

6M

40M

JK2040

Tri-Bander

30M

10M

JK106

15M

JK-Duos

1015

1520

4-Bander

JK-Quattro

5-Bander

JK401

80M

JK801

JK154

80M

JK Navassa-5

JK155

20M

JK204

JK802

JK803

30M

1720

3040 Duo

JK-WARC

1217

1217-Junior

Performance

There are several main parameters of Yagi electrical and mechanical performance which determine the effectiveness of your antenna.

JK Antennas provides this information on all of our products - you should know what you are buying, and we have done our best to provide all of these data points. If you have questions, please don't hesitate to ask us.

40M Rotatable Dipole

Forward Gain -

The concentration of energy in the direction you want emphasized. Gain should be maintained over an entire range of frequencies, and must be stated in comparison to a standard reference.


Unlike many other antenna manufacturers, we report  Gain (dBd) over a dipole in free space (dipole - 2.14 dBi)

 

Response Patterns -

The pattern of a directive antenna changes over a frequency band and is measured in two ways:

 

• Front-to-Back Ratio (F/B) - This is the ratio of the response in the direction of maximum gain compared to the response directly behind the antenna (at 180⁰)

• Front-to-Rear Ratio (F/R) - This is the ratio of the response in the direction of maximum gain compared to any response in the hemisphere behind the antenna (from 90⁰ to 270⁰)

• Standing Wave Ratios (SWR) -  An efficiency measure showing the relative size of reflections and their impact on the power of the antenna.


All of our antennas boast low SWR, across the antenna's operating band.

 

Mechanical Strength -

Impressive electrical performance means nothing if you have an antenna with poor mechanical design. Our antennas are designed to withstand high wind speeds and can be ordered with optional trussing kits if heavy icing is a concern for the larger sized Yagi elements especially on 40M and 80M.

 

JK Antennas can meet your needs with a wide range of HF Antennas, including Monoband, Dualband and Multiband, operating on frequencies from 6M to 80M.

We are also currently working on designs for Vertical Antennas, so check back with us for updates.

If you do not see what you are looking for here, please contact us for customized orders.

JK2040 Eagle - JK206 Stack

JK105

Falcon

Eagle Assembly
JK2040 Eagle on Crane

1517

1012

1015-Junior

 

The next generation in design, quality and manufacturing