Measurement speed and accuracy is considerably higher than mobile phones can deliver in order to represent the real physical nature of the radio network environment
The mobile phones can only “see” what the base station tells them to see
Hidden neighborhoods
Pilot pollution and interference causes are not detectable
Multiple carrier/channel selection is possible in order to provide a complete picture of the available RF environment (mobile phones provide only one carrier and one operator)
The use of only one unit for different networks and applications is more cost-effective than many dedicated devices (broadband application 80 MHz to 4 GHz)
Not only RF level scanning, but in addition demodulation of BCH (i.e. layer 3) Conclusion: independent from network registration and SIM card
Spectrum analysis provides detection of external interferences
Higher level accuracy, use as reference to mobile phones measurements
The reason for an abnormal end of call (dropped call) can never be found by the mobile phone affected