Yagi Antennas for Sale
JK Antennas can meet your needs with a wide range of Ham Radio, Amateur Radio HF Antennas, including Monoband, Dualband, Tribander, Multiband, operating on frequencies from 6M to 80M.
Mono-Bander
Single-band Yagis from 6M to 80M
Dual-Bander
Two bands on one boom
Multi-Bander
Three to six bands
Dipole
Rotatable dipoles
Models shown in grey do not have a page yet. Please call us at +1 475 289 2222 for details. Prices and ordering: Online Store.
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.
- 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 180°)
- 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 90° to 270°)
- 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 antennas especially on 40M and 80M.
