Which of the following is NOT a common strategy to mitigate RF interference?

• A. Filtering
• B. Proper channelization
• C. Increasing transmitter power to overcome interference
• D. Shielding

Answer: (C)

Mitigation of RF interference aims to reduce the amount of unwanted energy that reaches the receiver or disrupts the signal. Filtering directly cuts out the parts of the spectrum that aren’t the desired signal, so the receiver mainly sees the intended frequencies. Proper channelization assigns distinct frequencies, times, or codes to different users, preventing overlap that would cause interference. Shielding helps keep stray RF energy from entering sensitive equipment by surrounding components with conductive barriers, reducing coupling. Cranking up transmitter power to overcome interference is not a typical strategy because it can worsen the overall interference environment, may violate regulatory power limits, and doesn’t address the underlying causes of interference.