"K1FO" 15-element Yagi for 144 MHz

Specifications
see also specifications from C3I

Gain   ~13.7 dBd
Beamwidth E-plane 31°
H-plane 33º
Bandwidth   1.5 MHz
Sidelobe attenuation: 1st E -17.4 dB
1st H -15 dB
SWR   1.15:1 typical @ 144.100
Stacking distances for optimum G/T E-plane 13'
H-plane 12'2"
F/B ratio    21 dB
Impedance   50 Ohms
Maximum power   2000 watts
Length   24'8"
Turning radius   13'5"
Elements   ¼" Aluminum rod
Boom diameter 5 sections 1¼,1 3/8,1½,1 3/8,1¼" (O.D.)
Wind survival   90+ MPH
Wind surface area   3.2 sq. ft.
Element insulators   Black Delrin
Weight   12.5 lbs
Connector   Type N female
Balun   RG-142 Teflon