Because their circle is set to something overlapping your circle.
FYI - in some areas the DB is in dire need of having location data corrected. Some places it is done well, some places it's harder than stone getting it corrected.
Best way - find the offenders and submit for correction.
- example - a location has a 60 mile range, it's a city with a single digit radius. It should be 10 miles or so.
State wide systems can be an issue - range of 200 miles to cover the state, yet only 10 miles from one in another state. Large cities or county wide systems are similar, though in the Eastern US a county > 50 would be unusual (more or less)
Only fix for these is create a FL. However, if you are scanning from a fixed location and not using a FL - have fun
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