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A homebrew z-match
i used a t-200-6 core. the type-6 core over the type-2 because it provides a higher q over most of the hf range
post 27 Mar 2024
Antenna Transmatch tuner Links →
ASTU for portable
Is a variation of the traditional Z Match, but using switched coil tappings
Automatic Remote Controlled Antenna Tuner
Automatic Remote Controlled Antenna Tuner for Balanced and Unbalanced HF Antennas Model AT-502
Balanced Antenna Tuner QRP tuner for 10-40 meters
Homemade antenna tuner has three functions, Stockton Power Meter, Dummy load 25 W, Balanced antenna tuner, The tuner is kept in-line all the time
Circuit QRP Antenna Tuner
This circuit is for a QRP low power antenna tuner, a.k.a. a transmatch, for use in the short wave amateur radio bands from 3-30 Mhz
Couplage automatique ICOM AH-4
It consists of an electronic board managed by a microprocessor incorporating no less than 22 relays switching
201
Is a variation of the traditional Z Match, but using switched coil tappings
Automatic Remote Controlled Antenna Tuner for Balanced and Unbalanced HF Antennas Model AT-502
Homemade antenna tuner has three functions, Stockton Power Meter, Dummy load 25 W, Balanced antenna tuner, The tuner is kept in-line all the time
This circuit is for a QRP low power antenna tuner, a.k.a. a transmatch, for use in the short wave amateur radio bands from 3-30 Mhz
It consists of an electronic board managed by a microprocessor incorporating no less than 22 relays switching
Take off angle of horizontal antenna For horizontal polarization, the electric field will move sideways on a horizontal plane, while for vertical polarization it will oscillate up and down on a vertical plane
Rx antennas 4Square Rx Vertical Array My frequency design of 1.825 MHz a 90 degrees line would be 33,70 metersinstead of the previously calculated 33,27 m
Atu balanced feeder antenna system An ATU has the advantage of bringing the feeder-antenna system to resonance, act as a band pass filter both on receive and transmit and a low SWR