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Amateur Radio Pages Projects

The M0KGK keyer, PSK31 a simple PSK31, Softrock40 The Softrock 40 Software Defined Radio

post 08 Sep 2024


Projects_Homebrew Links

168



TRX Sequencer
Questo semplice circuito e' rivolto a coloro che desiderano gestire direttamente tutto il processo di rice-trasmissione

Controlled Impedance "Cheap" Antennas
economico misuratore di induttanza e capacita' relizzato con un 16F84 completo di firmware

Grid Dip Pll
In sintesi si tratta di un VCO con escursione da 350 KHz a 150 MHz

Homebrew Satellite Antenna
These antennas are special because they can be made from parts from your local hardware

Millivolmetro digitale a tre cifre
In verita' in commercio vi sono molti di questi kit e si differenziano tutti dal tipo di display usato


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