Radio relay interference; request for an opinion on operators of radio relay links

If you have any inquiries or comments about directional radio interference, you can contact the Federal Network Agency by e-mail. As the public body responsible for urban land use planning, the Federal Network Agency will examine your concerns and provide you with a statement.


The Federal Network Agency allocates frequencies for the operation of radio relay systems. It can make a contribution to the avoidance of directional radio interference in planning and approval procedures, within the framework of building law or immission control law. Such directional radio interference can be caused by new, tall structures, for example wind turbines or high-rise buildings.

In order to avoid corresponding directional radio interference, the Federal Network Agency will, upon request, provide the names and addresses of the directional radio operators in question for the construction area for the current time.

This means that planning authorities can inform any affected radio relay operators at an early stage about the planned construction work or land use. The Federal Network Agency also checks whether radio stations of the radiolocation system (radar) or the radio measuring stations of the Federal Network Agency operated in the public interest are affected.

The selection or construction of the transmitting and receiving sites of microwave links and the associated determination of the routing are the responsibility of the microwave operators. The protection of radio relay routes and the safeguarding of interests vis-à-vis cities and municipalities is the exclusive responsibility of the radio relay operators.

Information on specific routes and technical parameters contains company or trade secrets. This information can only be obtained directly from the radio relay operators. Safety distances to microwave links must be coordinated with the microwave operators concerned.


There are no prerequisites.


You can send your inquiry about urban land use planning to the Federal Network Agency by e-mail:

  • Go to the website of the Federal Network Agency.
  • Download the "Form to query operators of directional radio links in the specified planning area".
  • Send the completed form to the following e-mail address:
  • The Federal Network Agency will check your inquiry and send you a statement by e-mail.


You do not have to observe any deadlines.

Processing time

4 Wochen

Required documents

  • Required Documents

    The request must be accompanied by the following documents:

    • a topographic map with the construction area and landmarks marked (no cadastral maps)


  • Form, Bavaria-wide: Formular zur Abfrage der Betreiber von Richtfunkstrecken
    Please note

    This form has to be signed and sent to the responsible authority. You can sign the form manually and send it by email/fax or sign the form electronically with your qualified electronic signature an send it by (secure) email. If the responsible authority has set up a De-Mail account, you can also send the form by De-Mail using an sender-confirmed message.


  • There are no costs involved.


No legal remedy is given.


Responsible for editing:Bundesministerium für Digitales und Verkehr

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