|Source of QRM? No - victim!|
These are common sources of QRM to weather (and other) C-band radars. Numerous FCC citations are regularly added to their database.
The QRM is usually not something that is obvious in real-time; it's usually noticed during analyses of radar return data which is collected monthly for the purposes of defining ground clutter. But in this case, we do see it as it occurs.
I have no idea as to how we will locate the offending device - my job will be to shut down the radar and then accompany the agent with their direction-finding equipment. Needless to say, I'm looking forward to this and hope to describe the process and equipment used in an upcoming post.