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Automatic Tuner-Transceiver Interface
This Autoamtic Tuner-Transceiver Interface (ATTI), based on my own firmware and a PIC16F876 processor, is used to control a connected transceiver when the Tune
post 29 Mar 2024
Antenna Transmatch tuner Links →
Z-match tuner for ft817
I chose to use the dual balanced output link configuration suggested by Mr. Lofgren. One link is a low impedance, the other a high impedance
Z-Match Antenna Tuner 100 watt
The variable capacitors mustbe insulated fromground, thereforemount both capacitorson a piece ofsingle-sided circuit-or perf-board that is cutjust wide enough to fit into thealuminum case
Z-match ATU covering 160m - 10m
I put up a homebrew 40m coaxial dipole which wouldn’t even give me a good SWR on 40m! I looked around for an appropriate ATU circuit to build
End Fed Half Wave Tuner Kit
The two transformers that need to be wound, one on toroid and the other on a binocular core, were pretty easy, and anyone who has wound inductors before will have no problem
Z-Match, un circuito da riscoprire
L'originalita' dell'idea consiste nell'usare due circuiti accordati, in parallelo, che lavorano su frequenze diverse, eliminando la necessita' di induttanze tipo roller o con prese commutabili
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I chose to use the dual balanced output link configuration suggested by Mr. Lofgren. One link is a low impedance, the other a high impedance
The variable capacitors mustbe insulated fromground, thereforemount both capacitorson a piece ofsingle-sided circuit-or perf-board that is cutjust wide enough to fit into thealuminum case
I put up a homebrew 40m coaxial dipole which wouldn’t even give me a good SWR on 40m! I looked around for an appropriate ATU circuit to build
The two transformers that need to be wound, one on toroid and the other on a binocular core, were pretty easy, and anyone who has wound inductors before will have no problem
L'originalita' dell'idea consiste nell'usare due circuiti accordati, in parallelo, che lavorano su frequenze diverse, eliminando la necessita' di induttanze tipo roller o con prese commutabili
40m Compact 4-Square Antenna Compact 4-Square Antenna – EA5AVL The EA5AVL 40M Compact 4-Square Antenna was designed to provide excellent DX communications on the 40m band
The K9AY loop antenna for 160 and 80m bands You don't have the space to put up a 4 beverage antenna's, an ewe or a 4-square and want 'good ears' on 160 and 80m? no problems try a k9ay loop antenna
Spiderbeam 10-15-20m E' una Yagi tribanda full-size leggera, fatta di tubi in vetroresina e filo