Uniden DFR9 English Owner Manual - Page 20

HOW DO I ...? Update the firmware and database TRY THIS... Refer to http://support.uniden.com for details. FEATURE DETAILS USER MARKS (LASER AND RADAR SITES) With the DFR9, you can mark geographical points where you commonly encounter radar transmissions, These can be school zones, red-light cameras, and places where police frequently monitor traffic. When you are at the location, press MARK. The DFR9 announces "User mark logged." Now, when you approach these points, the DFR9 announces "User mark ahead." Press and hold MARK at that location to delete that user mark. The DFR9 registers up to 500 user marks. HIGHWAY VS CITY MODE VS ADVANCED Radar detectors operate with two sensitivity levels. These levels determine the types of signals and signal ranges (bands) detected. Highway mode is the most sensitive level while City mode is the least sensitive. If the X band is left on in City mode, a radar detector can pick up many X band signals (such as garage door openers) that generate false alerts. The DFR9 reduces sensitivity to the X band for City mode to reduce false alerts. When you are on the highway, there is less chance of picking up X band false alerts, so the DFR9 keeps the X band on in Highway mode. In Advanced mode, you can set the detection sensitivity level in 20% decrements from 100% to 40%. Adjusting the sensitivity level does not shorten the range that the radar detector will detect signals. It limits the bandwidth strength that the radar detector will recognize. In other words, weaker signals will not be detected. -20 -