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40M / 20M Duo-band Yagi

JK2040 Phantom

  • 4 Elements on 40M
  • 5 Elements on 20M
  • 48 Foot Boom
PriceUS$8,450.00**

The JK2040 Phantom is the combination of the JK404-Grande & the JK205 on the same boom with a single feed-point.

This antenna is made for the DX'er or Contester that is looking for an antenna with tremendous performance to work across the globe on 20M & 40M and make his/her own propagation.

The 20M performance is outstanding from the active boom length of 45Ft.

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.

JK2040 Phantom element layout
Specifications

JK2040 Phantom spec sheet

40M20M
Number Elements45
Active Boom Length45.5 ft45 ft
Peak Gain * (dBi)8.3 dBi10.3 dBi
Peak Gain * (dBd)6.2 dBd8.1 dBd
Peak F/B30 dB24+ dB
Peak F/R25 dB20 dB
2:1 SWR Bandwidth300 kHz-
1.5:1 SWR Bandwidth250 kHz350 kHz
Max Element Length74 ft37 ft

Tap a band or swipe the cards →

40M

Number Elements
4
Active Boom Length
45.5 ft
Peak Gain * (dBi)
8.3 dBi
Peak Gain * (dBd)
6.2 dBd
Peak F/B
30 dB
Peak F/R
25 dB
2:1 SWR Bandwidth
300 kHz
1.5:1 SWR Bandwidth
250 kHz
Max Element Length
74 ft

20M

Number Elements
5
Active Boom Length
45 ft
Peak Gain * (dBi)
10.3 dBi
Peak Gain * (dBd)
8.1 dBd
Peak F/B
24+ dB
Peak F/R
20 dB
2:1 SWR Bandwidth
-
1.5:1 SWR Bandwidth
350 kHz
Max Element Length
37 ft

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

Mechanical

Approx wt.
395 lbs
Wind Area ā€œCā€
26.75 Sq Ft
Wind Area ā€œGā€
48.15 Sq Ft
Projected Area
40.1 Sq Ft
Max Wind Speed
100 Mph
Max Turning Radius
45 Ft
Boom
3" OD
Feedpoint
50-ohm Direct · Single Feed
Power
5KW Avg or Balun restricted
Patterns & SWR

Plots by band

JK2040 Phantom 40M azimuth plot
JK2040 Phantom 40M SWR plot
JK2040 Phantom 20M azimuth plot
JK2040 Phantom 20M 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.