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20M / 40M Duo-band Yagi

JK2040 Osprey

  • 4 Elements on 20M
  • 3 Elements on 40M
  • 32 Foot Boom
PriceUS$4,145.00**
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The JK2040 Osprey has great performance characteristics on 20m and 40m. The 27ft active 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 3 element Yagi are similar to the JK403 or better.

The 40m element constructions do not need trussing. 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 Osprey element layout
Specifications

JK2040 Osprey spec sheet

20M40M
Number Elements43
Active Boom Length27 ft30 ft
Peak Gain * (dBi)8.9 dBi7.2 dBi
Peak Gain * (dBd)6.8 dBd5.1 dBd
Peak F/B16 dB21 dB
Peak F/R15 dB18 dB
2:1 SWR BandwidthSWR less than 1.3:1 across the entire band160 kHz
1.5:1 SWR BandwidthSWR less than 1.3:1 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
27 ft
Peak Gain * (dBi)
8.9 dBi
Peak Gain * (dBd)
6.8 dBd
Peak F/B
16 dB
Peak F/R
15 dB
2:1 SWR Bandwidth
SWR less than 1.3:1 across the entire band
1.5:1 SWR Bandwidth
SWR less than 1.3:1 across the entire band
Max Element Length
36.4 ft

40M

Number Elements
3
Active Boom Length
30 ft
Peak Gain * (dBi)
7.2 dBi
Peak Gain * (dBd)
5.1 dBd
Peak F/B
21 dB
Peak F/R
18 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.
175 lbs
Wind Area ā€œCā€
14.85 Sq Ft
Wind Area ā€œGā€
27.0 Sq Ft
Projected Area
22.5 Sq Ft
Max Wind Speed
100 Mph
Max Turning Radius
28.5 Ft
Patterns & SWR

Plots by band

JK2040 Osprey 20M azimuth plot
JK2040 Osprey 20M SWR plot
JK2040 Osprey 40M CW azimuth plot
JK2040 Osprey 40M CW SWR plot
JK2040 Osprey 40M SSB azimuth plot
JK2040 Osprey 40M SSB 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.