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Feeding the Antenna
If you're using a nonresonant antenna and matching it with an ATU in the shack you could be amazed by how much power you're wasting. more
G5RV wire antenna 10-40 Meter
The ladder-window line is aprox 450 ohm impedance, you will be using 16.5 ft of this line
Home Brew CW Filter
Newer radios may come equipped with filters for narrowing the audio passband or digital signal processing (DSP) to clean up unwanted noise
Adattatori d'impedenza
Esistono numerosi tipi di adattatori, tipo uno spezzone di cavo coassiale della lunghezza di λ/4 d'ond
Homebrew pages
This is one of my homebrew qrp projeckt collections. 144 MHZ QRP TX FOX BEACON is very simple but the power out put is around 100mw enough to be made in the FOX HUNTING event
Homebrew Aplifiers
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If you're using a nonresonant antenna and matching it with an ATU in the shack you could be amazed by how much power you're wasting. more
The ladder-window line is aprox 450 ohm impedance, you will be using 16.5 ft of this line
Newer radios may come equipped with filters for narrowing the audio passband or digital signal processing (DSP) to clean up unwanted noise
Esistono numerosi tipi di adattatori, tipo uno spezzone di cavo coassiale della lunghezza di λ/4 d'ond
This is one of my homebrew qrp projeckt collections. 144 MHZ QRP TX FOX BEACON is very simple but the power out put is around 100mw enough to be made in the FOX HUNTING event
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
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