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The totally rocking SteppIR,
3 element Yagi beam from
Fluidmotion, Inc
BANDGAIN (dBi)GAIN (dBd)HALF POWER
ANGLE
FRONT TO
REAR
FRONT TO
BACK
20 meters 7.44.9+/- 3425 dB42 dB
17 meters 8.35.5+/- 3225 dB44 dB
15 meters8.55.7+/- 2920 dB44 dB
12 meters8.86.2+/- 2815 dB16.5 dB
10 meters9.06.3+/- 29 11 dB15 dB
6 meters10.17.9 (approx)+/- 2520 dBN/A

Instructions Manual:

yagi instructions feb 5 2003.pdf (1.0 Mb)
October 24, 2005: Hurricane Wilma visits K4JRG in Miami.

Here's a video clip showing the SteppIR whipping in the 95+ MPH winds. Two of the three elements were removed as precautionary measure. The remaining element was used as functional dipole.

Got a Yaesu DXA rotor? Want to control it from your PC?
See Rotor Control DXA
SteppIR Yagi