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Switchted inductor L match tuner


Switchted inductor L match tuner

Sixth inductor of 16 uH and another switch could be added for a total of 31.5 uH which would allow operation on 160 meters too if needed

post 03 Nov 2024


Antenna Transmatch tuner Links

193



Palstar AT1500CV
Palstar AT1500CV. I had this tuner in use for more than three years and I liked it very much. The tuner is equipped with asymmetrical and symmetrical connections.

Projects
I like inverted L's because I get both vertical and horizontal radiation

Remote control L match aerial Tuning Unit
One of the geared motors turns the roller coaster inductor, the other a variable capacitor.Both motors run at approximately 60 RPM

Symmetrisch antenne systeem
A balun is placed at the input of a symmetrical ATU to make the input signal symmetrical or at the output of an asymmetrical ATU a balun couples the signal symmetrically to the open line

Accordatore-1-kw-0.5-mhz-a-60-mhz
Sicuramente l'accordatore costruito in proprio, dopo le antenne,e' l'apparato piu' presente in Internet dopo le antenne autocostruite


23cm Yagi Antenna building

23cm Yagi Antenna building Finished antenna at 1275 MHz SWR under 1:1.5 at resonant frequency

50 MHz preamp Gain 26dB with the BFG135

50 MHz preamp Gain 26dB with the BFG135 Preamps for 144 and 430 MHz, for 50 MHz, the BFG135a is a cheap transistor and in my view rather strong. It is not easily damaged by static discharge or RF power. FG connection

interface-for-digital-broadcasts-with-integrated-audio

Interface-for-digital-broadcasts-with-integrated-audio 4-port HUB, with a TUSB2046. With port 1 of the HUB we drive the FT232RL; with port 2 the PCM2904, furthermore, we decided to leave ports 3 and 4 free