How do I find and fix RF interference?

Identify the affected system or equipment that is experiencing interference.
Determine the type of interference: is it narrowband, broadband, or intermittent?
Investigate potential sources of interference, which could include other RF systems, electrical equipment, or natural phenomena like lightning.
Conduct a site survey to assess the RF environment and identify any sources of interference.
Use a spectrum analyzer to analyze the RF spectrum and identify any unwanted signals or noise.
Check cables and connectors for damage or corrosion, which can affect the performance of the system.
Verify the grounding and shielding, as inadequate grounding or shielding can lead to interference.
Check the configuration of the affected system, such as the antenna height, orientation, and polarization.
Install RF interference filters to block or attenuate unwanted signals or noise in the RF spectrum.
Test and monitor the system to verify that the interference has been eliminated or mitigated. This may involve conducting field tests, performing signal quality measurements, or monitoring the system logs.