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THE EQUIPMENT
BACK TO DRM
ZURÜCK ZU
HOBBY-INHALT
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THE NECESSARY BITS AND PIECES
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The Block Diagram for 455 kHz IF
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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 IF Frequency
- A Down Mixer to generate the necessary 12 kHz signal output
- A Personal Computer with DRM Software installed
- A Sound Card with a free Line or Microphone Input
- A pair of Stereo Speakers
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USEFUL HINTS
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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
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