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20M / 40M Duo-band Yagi

JK2040 Falcon

  • 4 Elements on 20M
  • 2 Elements on 40M
  • 27 Foot Boom
PriceUS$3,435.00**
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The JK2040 Falcon has great performance characteristics on 20m and 40m. The 24ft boom 20m Yagi has been optimized for high gain and a good F/R with good SWR performance across the band. On 40m the characteristics of the 2 element Yagi are similar to the JK402 or better.

The 40m element constructions do not need trussing unless you live in snow/ice conditions. It's truly an excellent performer and its max F/R characteristics help you hear even the weakest of signals.

The 40m elements can be optimized for your operating bandwidth on 40m.

JK2040 Falcon element layout
Specifications

JK2040 Falcon spec sheet

20M40M
Number Elements42
Active Boom Length24 ft22 ft
Peak Gain * (dBi)8.4 dBi6.76 dBi
Peak Gain * (dBd)6.3 dBd4.66 dBd
Peak F/B22 dB15 dB
Peak F/R22 dB15 dB
2:1 SWR BandwidthSWR less than 1.18:1 across the entire band160 kHz
1.5:1 SWR BandwidthSWR less than 1.18:1 across the entire band100 kHz
Max Element Length36.4 ft47 ft

Tap a band or swipe the cards →

20M

Number Elements
4
Active Boom Length
24 ft
Peak Gain * (dBi)
8.4 dBi
Peak Gain * (dBd)
6.3 dBd
Peak F/B
22 dB
Peak F/R
22 dB
2:1 SWR Bandwidth
SWR less than 1.18:1 across the entire band
1.5:1 SWR Bandwidth
SWR less than 1.18:1 across the entire band
Max Element Length
36.4 ft

40M

Number Elements
2
Active Boom Length
22 ft
Peak Gain * (dBi)
6.76 dBi
Peak Gain * (dBd)
4.66 dBd
Peak F/B
15 dB
Peak F/R
15 dB
2:1 SWR Bandwidth
160 kHz
1.5:1 SWR Bandwidth
100 kHz
Max Element Length
47 ft

* Peak gain is shown in free space. dBd = dBi − 2.1

Mechanical

Approx wt.
139 lbs
Wind Area ā€œCā€
12.20 Sq Ft
Wind Area ā€œGā€
21.96 Sq Ft
Projected Area
18.3 Sq Ft
Max Wind Speed
100 Mph
Max Turning Radius
27.5 Ft
Patterns & SWR

Plots by band

JK2040 Falcon 20M azimuth plot
JK2040 Falcon 20M SWR plot
JK2040 Falcon 40M azimuth plot
JK2040 Falcon 40M SWR plot

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.