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Design Your Own Half Wave Vertical Antenna

Coupled Tuner LCT
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Coupled Tuner LCT

Inductively couple an RF signal from the Transceiver to the Antenna System
post 11 Nov 2019






Antenna Transmatch tuner Links


Z-Match Antenna Tuner, K5DKZ
This Z-Match is a link coupled all-band tuner. Two all band tank circuits cover 3-14mhz and 14-30mhz. The tank output links are selected with a very heavy duty SPDT rotary switch

Z-match tuner, IK0RKS
Andremo ad agire sul secondo condensatore resonance o c.v. 2 perportare i segnali ascoltati al massimo livello di livello s-meter e ritoccare poic.v. 1 sempre per il miglior risultato in ricezione

Balanced ATU, G1EXG
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

FT-817 2-Tuner, G3EJS
The capacitor had to be small, I had the choice of two, one of 140pf and one of 100pf, Ichose the latter, as neither the rotor or stator were grounded

The Balanced Universal ATU, PA0FRI
It is possible with only two components of a LC circuit to build a symmetrical ATU without taps and coupling links