Tag Archives: Deutscher Amateur-Radio-Club

DARC’s initiative to track the state of radio interference

Many thanks to SWLing Post contributor, Alexender (DL4NO), who shares the following comment in response to our recent post about LED bulb QRM:

The DARC does even more: It is planning a long-term project with some 50 automatic monitoring stations with standardized, calibrated antennas and according to standardized methods to document the changes.

Every monitoring station will scan the bands for free frequencies and measure the background noise there. Every 15 min it will send its findings to a central database where the data will be collected and evaluated.

This way the DARC wants to document the ever increasing interferences in a way that is valid according to the relevant standards. Most monitoring stations are planned to be placed at fixed locations all over Germany. But a few are planned to be placed for a limited time in especially interesting locations.

Presently relevant findings are collected. If you live in Germany see https://www.darc.de/der-club/referate/emv/emv-abhilfemassnahmen/. Also see the DARC magazine cqDL 12-2017, p. 15.

To emphasize it again: Informal reports to your radio club are good. But if you wish to communicate with the legislative bodies you must do your measurements according to the standardized rules using calibrated equipment. Otherwise the authorities will not accept your findings.


Most impressive, Alexander! I love the fact that DARC is using objective observations to support their initiative. The concept is a fascinating one that I should hope other national radio clubs could copy. I will certainly send this to the ARRL.

Thanks again, Alexander!

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