Listen to DRM Digital Radio Broadcasts on MW and SW.
Some tips and hints how to use the KiwiSDR with DReaM.

 
KIWI-SDR AND DREAM


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THE KIWI SDR AS A SHORT- AND MEDIUM WAVE DRM RECEIVER

Recently a new method to listen to DRM broadcasts emerged by using the Kiwi SDR. The newer versions of the popular Web-based SDR has the IQ output option implemented. With the help of the KiwiSDR Software-defined receivers around the world you can tune in to digital shortwave DRM radio stations anywhere. Even if you cannot receive any DRM transmitters where you live, the KiwiSDR makes it possible. All you need to do is to hook up this audio output to DReaM, SoDiRa or whatever you use is a VAC (Virtual Audio Cable).

  • First of all you need to get a Virtual Audio Cable and install it on your PC. There are various VAC available which you can download.
  • Before you start a KiwiSDR close both DReaM and your web browser and do some initial steps how to handle the audio in your computer.
  • First, open your speaker settings and set the default audio output to VAC instead of your PC speakers. Go to "Sounds and audio devices properties", "Audio", select VAC from the drop-down list in "Default Device". Then click "Apply" and "OK".
  • Set the System Speakers' output to the VAC cable

Fig. 1

  • Now start Dream with a shortcut or a run command exactly like this (it looks like this on my PC): "C:\Dream\dream.exe" -c 5 . Note that I had to use quotation marks in this shorcut. Without the quotation marks the ' -c 5' will be ignored.

  • With Dream, go to "Settings" / "Sound Card" / "Signal Input" / "Device" and select "VB-Audio Point" (in my case the VAC is called that) to set DReaM to use the VAC as its audio input.

How to select VAC in the DReaM setup

Fig. 2

  • Then, again in Dream go to "Settings" / "Sound Card" / "Audio Output" / "Device" and check (in my case) "Realtek HD Audio Output" (or whatever you have) to route Dream's output to your PC speakers.

Fig. 3

  • Finally in Dream again, place the Input Spectrum in the middle of the Dream by going to to "Settings" / "Sound Card" / "Signal Input" /"Channel" and check "I/Q Pos Split".
How to set the DRM spectrum to center

Fig. 4

  • Start your web browser and find a KiwiSDR. Tune into a DRM transmission and press the "I/Q" button. Now Dream should play the decoded audio from your PC speakers.

Use the IQ button to receive DRM

Fig. 5

On most (if not all) KiwiSDR web pages there is a Maidenhead grid locator. In the newest version of the DRM-Log Plotter from November 2017 this locator can be written to "My Locations" in the DRM-Log Plotter. Goto "SetUp" / "Receiver Coordinates" / "Change" which opens the "My Locations" window. Write the Maidenhead Grid Square Locator in the "Add Location" field. The locator must be of the format "AB12cd", but you can write the locator anyway you want - it will be fixed automatically. Press the "Convert" button and the Latitude / Longitude coordinates will be calculated and added to the boxes automatically. Press "Add" to add this locator to your "Locations" list. This way you will get the actual distance and azimuth to the transmitter site.

Write the Maidenhead Locator and press Convert

Fig. 6

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Latest edit: 6th December 2017