JK1217
- 4 Elements on 17M
- 5 Elements on 12M
- 24 Foot Boom
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 spec sheet
| 17M | 12M | |
|---|---|---|
| Number Elements | 4 | 5 |
| Active Boom Length | 21.5 ft | 21.7 ft |
| Peak Gain * (dBi) | 8.54 dBi | 10.06 dBi |
| Peak Gain * (dBd) | 6.4 dBd | 7.92 dBd |
| Peak F/B | 20 dB | 20 dB |
| Peak F/R | 20 dB | 20 dB |
| 2:1 SWR Bandwidth | SWR less than 1.1:1 across the entire band | SWR less than 1.1:1 across the entire band |
| 1.5:1 SWR Bandwidth | SWR less than 1.1:1 across the entire band | SWR less than 1.1:1 across the entire band |
| Max Element Length | 28.1 ft | 20 ft |
Tap a band or swipe the cards →
17M
- Number Elements
- 4
- Active Boom Length
- 21.5 ft
- Peak Gain * (dBi)
- 8.54 dBi
- Peak Gain * (dBd)
- 6.4 dBd
- Peak F/B
- 20 dB
- Peak F/R
- 20 dB
- 2:1 SWR Bandwidth
- SWR less than 1.1:1 across the entire band
- 1.5:1 SWR Bandwidth
- SWR less than 1.1:1 across the entire band
- Max Element Length
- 28.1 ft
12M
- Number Elements
- 5
- Active Boom Length
- 21.7 ft
- Peak Gain * (dBi)
- 10.06 dBi
- Peak Gain * (dBd)
- 7.92 dBd
- Peak F/B
- 20 dB
- Peak F/R
- 20 dB
- 2:1 SWR Bandwidth
- SWR less than 1.1:1 across the entire band
- 1.5:1 SWR Bandwidth
- SWR less than 1.1:1 across the entire band
- Max Element Length
- 20 ft
* Peak gain is shown in free space. dBd = dBi − 2.1
Mechanical
- Approx wt.
- 59 lbs
- Wind Area “C”
- 6.65 Sq Ft
- Wind Area “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
Plots by band
Click any plot to open it full size.
** All pricing shown assumes the basic mounting hardware. Additional costs may apply for customized mast plates and hardware.