Actually, it enables/disables Sites and Departments in Favorites Lists (as long as they have locations programmed) based on your current location and scan range settings. Location Control is always enabled when scanning from the Full Database. To use Location Control, you have to enable it for each Favorites List (default is OFF). You also need to have locations programmed for Sites and Departments in each list (you can't program a location for a system). With Location Control set to ON, the scanner only sees Departments/Sites with programmed locations. Any Department/Site with no location information programmed will not be scanned. If you append (add) a System/Department to a list from the database, the locations will be brought in with each System/Department you append. With Location Control set to OFF, the scanner will enable all Sites and Departments in your Favorites List no matter what the scan range or Site/Department range is set to. You don't need a GPS to scan by location if all of the following apply: 1. You have Location Control set to ON for each Favorites List you want to use with Location Control. 2. You set manually or select a location. 3. Your Departments and Sites have locations programmed. The scanner then compares your location data with Site and Department data to determine which channels to scan. Conceivably, you could program everything you want to hear into one Favorites List and scan just by selecting locations rather than enabling/disabling lists. If you are traveling long distances a GPS device would be a better way to go.

位置控制根据你当前位置与扫描范围，自动启用/停用收藏列表中已编程位置的站点与部门（系统不能编程位置）。扫描"完整数据库"时位置控制始终开启；对收藏列表需逐个开启（默认关）。位置控制=ON 时， 扫描机只"看得见"有位置信息的部门/站点；从数据库追加系统/部门时会自动带入位置信息。位置控制 =OFF 时，无论范围设置如何，列表内所有站点/部门全部启用。不使用 GPS 纯靠位置扫描的三个条件：① 每个目标列表位置控制=ON；② 已手动设置或选择位置；③ 部门/站点均已编程位置。此后扫描机自动比对位置数据决定扫描哪些频道。甚至可以只建一个收藏列表，靠切换位置而非开关列表来换听内容；长途移