Try scan by “Spektrum” . It is very fast, each sweep takes only about 1 minute so leting her run for 5 minutes is enough. Another advantage is that the sweep is very wide, from 24 Mhz to 1200 Mhz, hence not only covers Cell/Mobile signals, but also covers signals FM VHF TV, UHF TV, VHF Amature, Police, Fire, Taxi etc etc.
