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The Z-Match antenna matching unit while not exclusively designed for a balanced antenna system is particularly well suited to this configuration.
18 kwi 2020 · Being a parallel resonant circuit, the Z-match can provide some band-pass filtering for your receiver and harmonic attenuation for your transmitter. A well-designed Z-match tuner has a high Q and is more efficient (less lossy) than other types of tuners.
It is a modified version of the well-known Z-match and is designed as the result of experiments in reducing the SWR on the five HF bands between 3.5 and 28 MHz (incl. the WARC bands) without the necessity for switching coils and with a minimum of knobs.
The z-match acts as a mighty good pre-selector (a good thing, ordinarily, but not for shortwave listening). For example, if I tune the z-match for 40 meters, I can just about hear KEEL on 710 kHz, which ordinarily comes in 40 db over S9.
Z-Rock ATU is designed to tune or match your transmitter to properly designed antenna systems for the 80 through 10 meter amateur bands. Tune mode power is limited by the power rating of the bridge 51 Ohm resistors.
Z-Match ATU My favourite antenna tuner is the single coil Z-Match. I tend to use ladder-line feeder instead of coax, so I believe a tuner designed for balanced feeder is a much better solution than a T-Match or SPC using an external 4:1 balun or similar.
For my QRP transceiver (Kenwood TS-120V) I build a Z-Matzch antenna tuner. I found the schematic in the internet. Its a ZM-2 ATU clone. The finish tuner. Inside the tuner. I take bigger parts, so the tune can handle 100 Watts PEP. Here its in use with a symmetric dipole. Here is the schematic for this tuner. Here you can download the manual: zm ...
