What is adjacent-channel interference?

By Forinfos - 23/07/2025 - 0 comments

Adjacent-channel interference is static or other interruptions on a broadcasting channel caused by too much power on an adjacent channel on the spectrum. AM, FM and TV channels can all be affected by interference.

The two most common causes of interference from adjacent channels are poor frequency control and inadequate filtering. Poor frequency control occurs when one or both of the adjacent channels are broadcast with too much or too little power behind them. Inadequate filtering occurs when the receiving channel does not have the proper modulation to filter out the interfering signal. Proper management of the broadcast spectrum is the preferred way for controlling adjacent-channel interference.

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