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JK Quattro

4 Elements on 10M / 2 Element on 12M / 4 Elements on 15M / 3 Elements on 17M / 30 Foot Boom

Total 11 Physical Elements

Price : US$1,725.00 **

The JK Quattro is a Quad band Yagi that interlaces 10, 12, 15 & 17 meters on a single boom. This antenna evolved when we combined 2 of our dual-band yagis (1517 & 1012) on to the same boom using the forward stagger method.

The Quattro performs as 4 individual mono-banders with 2 separate 50-ohm direct feed-points. The different band elements couples with the other to give additional active elements on 12M & 17M.

This antenna has been designed to give a good gain, F/R characteristics on 10, 12,15 & 17. The adjacent band passive elements couple with the active band elements to give a good gain performance on each band for this boom length. The gain figures alone for this antenna will differentiate it as a leader in its class.

It is manufactured the same way as our bigger Yagis with the same high quality materials and hardware.

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Peak Gain is shown over a dipole in Freespace
Dipole in Freespace = 2.14dBi

Approx wt. = 87 lbs

Wind Area "C" = 8.83 Sq Ft

"G" = 15.9 Sq. Ft

Projected Area = 13.25 Sq. Ft

Max Wind Speed = 100 Mph

Max Turning Radius = 19.14 Ft

	10M	12M	15M	17M
Active Elements	4	2	4	3
Gain at 65ft	14.0 dbi	12.16 dbi	14.79 dbi	13.43 dbi
Peak Gain*	6.25 dBd	4.46 dBd	7.22 dBd	5.9 dBd
Peak F/B	25 dB	18 dB	15 dB	18 dB
Peak F/R	25 dB	18 dB	15 dB	18 dB
2:1 SWR Bandwidth	800 Khz	1.1 across the band	Less than 1.5	Less than 1:1
1.5:1 SWR Bandwidth	650 KHz	1.1 across the band	450 KHz	Less than 1:1
Max Element Length	17.9 ft	18.4 ft	24.25 ft	28 ft

** All pricing shown assumes the basic mounting hardware. Additional costs may apply for customized mast plates and hardware.