What must you do if you are operating on the 23 cm band and learn that you are interfering with a radiolocation station outside the United States?

If you find yourself interfering with a radiolocation station while operating on the 23 cm band, the appropriate response is to stop operating or take steps to eliminate the harmful interference. This is in accordance with the principles of responsible and ethical amateur radio operation. Amateur radio operators are tasked with not causing harmful interference to authorized services.

The 23 cm band has shared allocations, and while amateurs may have certain privileges, radiolocation services also operate in that spectrum. Should an operator become aware of interference, it’s crucial to act immediately to resolve the situation by ceasing transmissions or modifying operations to prevent ongoing disruption.

Taking responsibility in this manner aligns with regulatory requirements and good operating practices to ensure that amateur radio remains a respected and harmonious part of the radio spectrum. The other options do not address the necessary responsibility of addressing interference to other services.