The Digital revolution has come to Shortwave Broadcasting.
The general concept to receive DRM transmissions.
Hello and welcome

THE NECESSARY BITS AND PIECES TO RECEIVE DRM
DRM Receiver Block Diagram
The Block Diagram for 455 kHz IF
This is what you need to receive DRM broadcasts on Medium and Short Wave:
  • If possible use an outdoor Antenna
  • A good Receiver with an Output Terminal for the receiver's IF Frequency
  • A Down Mixer to generate the necessary 12 kHz signal output
  • A Computer with DRM Software installed, i.e. DReaM
  • A Sound Card with a free Line or Microphone Input
  • A pair of Stereo Speakers
USEFUL HINTS
To achieve the best results, be sure to think about the following:
  • Keep the ground of the receiver and computer apart. Use a transformer in the 12 kHz feed to the PC.
  • A switched Power Supply can be a source of severe disturbance. Always run the power supply connected to an AC socket with earth.
  • Small power supplies with a diode bridge inside can be a source of buzzing noise too. If you can, open them and connect 0.01 uF across each of the two or four diodes.
  • Try to connect the receiver to ground if possible.
  • Stay well away from ADSL modems and electronic dimmers