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Coaxial Dipole antenna


A coaxial dipole, it is very different to a conventional dipole; it incorporates a balun and is almost like having two quarter-wave dipoles connected side by side
post 18 Feb 2024
Coaxial Dipole antenna

Wire & Random Antenna Links

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The G5RV Multiband HF Antenna
The interaction between the radiating section and the feed-stub makes the G5RV easy to match on all-bands from 80 through 10 meters with an ordinary low-cost antenna tuner

The Inverted "L" Antenna
The Inverted "L" is a 1/4-wave Marconi, fed against ground or a counterpoise such as radials

The W3EDP antenna
The W3EDP end fed wire antenna lends itself readily to QRP and portable operation

20 meters Cage Dipole
I badly needed an antenna for 20 meters. It was when the Cage Antenna solution came to my mind


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