Hy-Gain VB-25FM - Stacking and Phasing; Stacking for Increased Gain

Figure 2A VSWR for Both
Vertical and Horizontal
Polarizatio
n
Figure 2B Driven Element
Cutting Chart
Stackin
g
This antenna can be easily stacked for ap-
proximately 3 dB more gain each time the
number of yagi is doubled. Refer to Figure 3 for
stacking and phasing harness cutting informa-
tion.
The two phasing lines coming from the two an-
tennas to the "T" connector can be any odd
multiple of 1/4 wavelength in the 75 ohm trans-
mission line. See Figure 4.
NOTE: When phasing two antennas, the Driven
Element halves that are connected directly to
the phasing lines should be on the same side of
the array.
Figure 3 Stacking Two (2)
Antennas