Если , таки, перевернуть противовесами вниз, получается так:
при высоте противовесов ( резонансных ) 0,4 метра:
FINITE GROUND. SOMMERFELD SOLUTION
RELATIVE DIELECTRIC CONST.= 13.000
CONDUCTIVITY= 5.000E-03 MHOS/METER
Source in wire N 1: Z=21.128 - j 117.581 SWR(50+j0)=15.81
Elevation angle: 20.0 deg
Max Gain: -0.47 dBi at azimuth: 0 deg, F/B: 0.00 dB
Azimuth angle: 0.0 deg
Max Gain: -0.29 dBi at elevation 25 deg
***
Frequency: 3.55 MHz
Antenna environment:
PERFECT GROUND
Source in wire N 1: Z=18.911 - j 123.604 SWR(50+j0)=19.13
Elevation angle: 20.0 deg
Max Gain: 4.15 dBi at azimuth: 0 deg, F/B: 0.00 dB
Azimuth angle: 0.0 deg
Max Gain: 4.85 dBi at elevation 0 deg
При высоте противовесов 2 м так:
PERFECT GROUND
Source in wire N 1: Z=18.089 - j 130.107 SWR(50+j0)=21.80
Elevation angle: 20.0 deg
Max Gain: 4.22 dBi at azimuth: 0 deg, F/B: 0.00 dB
Azimuth angle: 0.0 deg
Max Gain: 5.03 dBi at elevation 0 deg
***
Frequency: 3.55 MHz
Antenna environment:
FINITE GROUND. SOMMERFELD SOLUTION
RELATIVE DIELECTRIC CONST.= 13.000
CONDUCTIVITY= 5.000E-03 MHOS/METER
Source in wire N 1: Z=18.031 - j 131.593 SWR(50+j0)=22.30
Elevation angle: 20.0 deg
Max Gain: 0.02 dBi at azimuth: 0 deg, F/B: 0.00 dB
Azimuth angle: 0.0 deg
Max Gain: 0.14 dBi at elevation 24 deg
***
***
Потери при 4х резонансных на высоте 0,4 м всё же видны , а при 2х метрах уже не видны.
Сейчас укорочу противовесы