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The JK1217  Warc antenna was designed as a simple dual band yagi that performs amazingly on 17m and 12m and on a reasonable sized boom. This single feed point yagi performs like a champion giving great gain and  F/R while keeping swr low on both 12m and 17m.

 

This yagi uses the same tapers as the JK-Navassa5 antenna. The Mast mounting position in the center of the boom has a clearance of more than 36 inches to enable side mounting on a tower.

 

This interlaced yagi gives the best performance at par with any 4-element monoband yagi in its class on 17m and 5-element monoband yagi on 12M.

 

*** We strongly recommend to analyze and model before mounting any WARC antenna above or below Tribanders or other yagis with separation less than 10 ft. ***

JK1217 - 4 Elements on 17M / 5 Elements on 12M / 24 Foot Boom

Price : US$1,250.00 **

Approx wt. = 59 lbs

Wind Area "C" = 6.65 Sq Ft

                "G" = 11.97 Sq Ft

Projected Area = 9.97  Sq Ft

Max Wind Speed = 100 Mph

Turning Radius = 18 Ft

Boom = 2.0" OD/ 0.125" wall

FeedPoint = 50-ohm Direct

 

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

 

17M

12M

Number Elements

4

5

Active Boom Length

21.5 ft

21.7 ft

Peak Gain*

6.4dBd/ 8.54dbi

7.92dBd/ 10.06dbi

Peak F/B

20 dB

20 dB

Peak F/R

20 dB

20 dB

2:1 SWR Bandwidth

Less than 1:1 across the band

Less than 1:1 across the band

1.5:1 SWR Bandwidth

Less than 1:1 across the band

Less than 1:1 across the band

Max Element Length

28.1 ft

20 ft

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

 

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