FTO on both Uniden and Whistler Scanners has one huge glaring flaw that seriously needs to be fixed on the next generation of scanners. You MUST add tone handling for frequencies! In order to truly be fully functional there must be tone settings for each frequency you monitor. Example: Here in central Indiana, you have 2 counties, Hamilton, and Johnson separated by one county in between, Marion. Tone Out frequency for Hamilton County is 154.0100, as is the Tone Out frequency for Johnson County. Hamco uses CSQ, JoCo uses 103.5 CTCSS. But in the FTO features of current scanners, there is NO way to distinguish who is who unless you are actively listening to each and every tone out, or record every single tone out. At least on the scanning side, Uniden did come up with a tone lock out feature so you can put in multiple instances of same freq's and add lock outs to tones so you accurately can distinguish users.