DG7YBN / 40 MHz / GTV 40-3m
  Last Update Apr. 16th 2024


Performance Data and Geometry
Pattern and VSWR
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GTV 40-3m Yagi   with bent Driven Element

A compact Yagi with high F/B thanks to the bent dipole (K6STI style).

Performance Data

           Elem. taperd 16 mm + 12 mm
Gain vs. isotr. Rad.   7.2 dBi
Gain vs. Dipole        5.3 dBD
-3 dB E-plane         67.6 deg.
-3 dB H-plane        118.6 deg.
F/B                  -25.5 dB
F/R                   -8.2 dB
Impedance               50 ohms
VSWR Band Width     1.07:1 *
Mechan. Length       2165 mm + offsets
Electr. Length        0.29 λ

Stacking Dist. h-pol.
top-to-bottom         4.28 m = 14.1 ft
side-by-side          6.62 m = 21.7 ft

*) at 41.00 MHz


Cutting length of tubes for dipole arms must be longer then the guven total length,
shaped and shortende for a span as given in the drawing.

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Pattern and VSWR Plots

Elevation and Azimuth plot at 40.68 MHz


RL and SWR plot - simulated


None so far ...


STACKING info may follow

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