The 9, 10, and 11 band models have different sweep and park timing and schemes therefore the Filters add additional time to determine if it may have been due to the offending radar detector.
Let me clarify.
Filter is for 11 and 12 band RD's
Filter 1 is for 10, 11, and 12 band RD's
Filter 2 is for 9, 10, 11, and 12 band RD's
Each filter adds an additional 100ms of double-checking before deciding to respond.
Select the Filter that is needed for your general area. Start with Filter and give it a week. If you feel you are receiving too many false alerts from RADAR DETECTORS, try Filter 1 for a week and see if it has been reduced. If you continue to receive false alerts from RADAR DETECTORS, try the Filter 2 setting.
This does not effect POP