Why might some carrier frequencies be slightly offset?

Some carrier frequencies may be slightly offset primarily to avoid interference with aeronautical communication and navigation. This practice is critical in the telecommunications industry, as aviation frequencies are heavily regulated to ensure that aircraft communication remains clear and uninterrupted. By strategically offsetting frequencies, telecommunications providers can minimize the risk of signals overlapping or causing disturbances in channels that might affect pilots and air traffic control. This is especially important in areas where both telecommunications and aviation operations are prevalent, ensuring that vital communication remains reliable and safe.