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- DL7AHW Spraycan EH Antennas
new
- Hairspray-can EH Antennas for shortwave and online programs. Small magnetic (H) antennas (Loops) have a good efficiency for the upper bands (20/15/10 meter band) and also in contrast to E-antenna a defined radiation direction.
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Home : Technical Reference : Receivers
- SDR Receiver using a Tube
new
- The build was an experiment to see if a tube receiver could be stable enough to receive digital shortwave radio broadcasts.
The tube acts as both an oscillator and mixer, so the receiver is a type of direct conversion receiver.
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