

Cobweb Antenna
The wires above are 12-14 AWG basically speaker cables which are cut to 1/2 wavelength for each band the area of the band you are interested
post 30 May 2024

Antenna Cobweb Links →
5 Band Cobweb antenna
this antenna, or at least the one i made, not only covers 10-20m but tunes quite well to 40 and 80
A Cobwebb homebrew build
I put the antenna online via a two way switch to allow comparison to the old faithful ½ size G5RV, and the difference was noticeable
Antenna project Portable Cobweb
I built a portable version of a Cobweb antenna, it is based on a design by Stephen Webb G3TPW
Building a CobWebb Antenna
building a cobwebb antenna, is an hf antenna for the 14 - 18 - 21 - 24 - 28mhz bands, the antenna is practically a fan dipole five dipoles fed in parallel
20
this antenna, or at least the one i made, not only covers 10-20m but tunes quite well to 40 and 80
I put the antenna online via a two way switch to allow comparison to the old faithful ½ size G5RV, and the difference was noticeable
I built a portable version of a Cobweb antenna, it is based on a design by Stephen Webb G3TPW
building a cobwebb antenna, is an hf antenna for the 14 - 18 - 21 - 24 - 28mhz bands, the antenna is practically a fan dipole five dipoles fed in parallel
Antenna Transmatch tuner Links →
Build hf antenna tuner
This page details several T-match tuners. By comparing them, you should be able to construct a tuner to your own particular requirements
Realization of a coupling box by Patrice
The torus has 6 wires: 2 side CV, 2 side self and 2 to the outputs of the box, for the RX - TX.- For the six outputs of the torus, put "souplisso" recovered on the transformer of a micro insulation 2000 volts
Box agreement antenna with coil with caster and 4 CV isolated
From the left to the right we see the balun on the ferrite bar, the 4-cage CV and the roller coaster.
Box Antenna tuner monobande 28/30 MHz
Like the 10 MHz mono-band box, this box operates in autotransfo. The permissible power is greater than 200 watts
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This page details several T-match tuners. By comparing them, you should be able to construct a tuner to your own particular requirements
The torus has 6 wires: 2 side CV, 2 side self and 2 to the outputs of the box, for the RX - TX.- For the six outputs of the torus, put "souplisso" recovered on the transformer of a micro insulation 2000 volts
From the left to the right we see the balun on the ferrite bar, the 4-cage CV and the roller coaster.
Like the 10 MHz mono-band box, this box operates in autotransfo. The permissible power is greater than 200 watts

PSION Greyline Clock PSION Greyline Clock v. 1.0 is a UTC/Local clock showing sunlight/darkness area on the world map