If you recently purchased one of the new HomePatrol Scanners - HP-1, HP-2, BCD536HP, BCD436HP, SDS100 and SDS200  may want you to believe that programming frequencies by zip code would get you to the frequencies you want to hear.  The only problem is that by using zip code, you may get thousands of frequencies, most of which, you are not interested in hearing.  You can get frequencies so far outside your area that the scanner could not pick them up in any case, but it needs to take the time to scan through all those channels.  That means that the scan speed is slowed down and you may miss the action of what is happening just around the corner while listening to a dog catcher 50 miles away.  We can solve this problem by programming in just the frequencies for your county.  That way you will still have the master frequency list, but you can also limit the amount of frequencies the scanner has to go through, simply by going to the favorites list we make for your county.