Comments
If you know how to use the FCC database it will not "drive you crazy". I have no problem using it. My definition of "many" includes more than the few vhf MURS frequencies and some 900 mhz. frequencies.
I prefer a disciplined method. I maintain an Excel frequency database that documents frequency(ies), I/O relationships, callsign, user, city,county,call, latitude, longitude, pl and channel. The database currently contains approximately 100,000 records for the state of Virginia. For such an on site search effort I want to be as much informed before hand as to licensed frequencies which to search with a global frequency range search as an alternative.