JK402T
- 2 Elements on 40M
- 22 Foot Boom
The JK402T is a 22Ft boom 2 element 40m Yagi that has excellent gain and F/R. The elements are loaded Capacitively which shortens the overall length while still maintaining a good gain, F/R across the 40M band.
This antenna is made for the DX'er or Contester that is looking for an antenna to work across the globe.
It is made with very high quality materials and the best in its class in the market in terms of mechanical construction and electrical performance.
This 40M Yagi has a great performance bandwidth all the way at the CW portion of the band, where the Max performance of this antenna is achieved. It then extends all way in to the upper SSB portion without significant degradation in performance.
Enjoy 6+ dbi of Freespace Peak gain or 11+ dbi of Peak gain at 70ft above Avg. ground !!!
JK402T spec sheet
| 40M | |
|---|---|
| Number Elements | 2 |
| Active Boom Length | 21.5 ft |
| Peak Gain * (dBi) | 6.2 dBi |
| Peak Gain * (dBd) | 4.1 dBd |
| Peak F/B | 20 dB |
| Peak F/R | 18 dB |
| 2:1 SWR Bandwidth | 300 kHz |
| 1.5:1 SWR Bandwidth | 275 kHz |
| Max Element Length | 57 ft |
Tap a band or swipe the cards →
40M
- Number Elements
- 2
- Active Boom Length
- 21.5 ft
- Peak Gain * (dBi)
- 6.2 dBi
- Peak Gain * (dBd)
- 4.1 dBd
- Peak F/B
- 20 dB
- Peak F/R
- 18 dB
- 2:1 SWR Bandwidth
- 300 kHz
- 1.5:1 SWR Bandwidth
- 275 kHz
- Max Element Length
- 57 ft
* Peak gain is shown in free space. dBd = dBi − 2.1
*** Gain above ground figures are modeled over average/flat ground ***
Mechanical
- Approx wt.
- 125 lbs
- Wind Area “C”
- 6.2 Sq Ft
- Wind Area “G”
- 11.16 Sq Ft
- Projected Area
- 9.3 Sq Ft
- Max Wind Speed
- 100 Mph
- Max Turning Radius
- 28 Ft
- Boom
- 2" OD / 0.125" Wall
- Feedpoint
- 50-Ohms
- Power
- 5KW Avg or Balun restricted
Plots
*** Gain above ground figures are modeled over average/flat ground ***
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.