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Dipole colineaire
Puo' essere realizzata tutta in cavo coassiale RG.213 o altro cavo
post 21 Mar 2024
Wire & Random Antenna Links →
Building a Double Extended Zepp Antenna
Zeppelin double antennas, suitable antenna tuners for their adaptation, extended Zeppelin double antennas and a practical example of the Zeppelin double antenna construction are described
Cage dipoles prismatics
Articles in antenneX, the Prismatic Polyhedron, or Pn, is a derivative of the simple dipole
Coaxial Dipole antenna
The first HF antenna I put up was a coaxial dipole, the concept was developed by MIT. Electrically it is very different to a conventional dipole
Coaxial Folded Dipole Antenna
What if I told you can make a 50 ohm version directly from RG-58 or RG-8 / RG-213 cable?
Dipole Cobra Ultra Lite
A simple antenna cut for 75m so I could test the location
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Zeppelin double antennas, suitable antenna tuners for their adaptation, extended Zeppelin double antennas and a practical example of the Zeppelin double antenna construction are described
Articles in antenneX, the Prismatic Polyhedron, or Pn, is a derivative of the simple dipole
The first HF antenna I put up was a coaxial dipole, the concept was developed by MIT. Electrically it is very different to a conventional dipole
What if I told you can make a 50 ohm version directly from RG-58 or RG-8 / RG-213 cable?
A simple antenna cut for 75m so I could test the location
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 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
30 Volt Computer Power Supply Stack A bonus was that i discovered that these did not need a standby load connected to the supply to keep them running just apply mains power and close the Start lead to ground