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Antenna Fundamental


Antenna Fundamental

Practical microwave antennas provide high gainwithin the range of amateur fabrication skills and budgets

post 08 Sep 2024


Projects_Homebrew Links

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This Old Dipole
Replace an old co-ax fed 40M dipole with a new one, fed with 300 Ohm ladder line

TRX Sequencer
Gestire direttamente tutto il processo di rice-trasmissione della propria stazione, avendo costruito preamplificatori d'antenna, amplificatori lineari

UHF Series connectors
UHF Series - RF Connection

VHF/UHF Long Yagi Workshop
If you want a top-performance VHF/UHF Long Yagi, why not build it yourself

Wifi VSWR Meter
When building antennas for the Wifi band such as the 8dBi omni, the need quickly arises to test these antennas in a simple way


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

30 Volt Computer Power Supply Stack

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