Cellmon

Model:
Blackberry 8350i (320*240) Related Devices Model: 8500, 8520, 8530, 9300(Kepler), 9330/Blackberry 89XX Curve Series (480*360): 8900(Javelin), 8910(Atlas), 8930, 8950, 8980/Blackberry 90XX Bold (Onyx) Series (480*320) Devices Models: 9000, 9020(Onyx)/Blackberry 96XX Tour (Niagara) Series (480*360):9600, 9630, 9650(Tour2), 9700(Bold2), 9780, Dakota, Apollo /Blackberry 95XX Storm Series (360*480):9500, 9510, 9520, 9530, 9550(Storm2), 9570(Storm3), 9800(Torch), Torch2/Blackberry Pearl 3G Series (360*400) Devices Models: 9100, 9105, 9670(Style)/Blackberry 99XX (OS 7.0) Series (640*480) Devices Models: 9900, 9930
Description:

The app reminds me of SignalLoc and is an awesome utility for network junkies. It provides you with some serious network and diagnostic information for your BlackBerry in a very easy to read format.

•shows current signal level in dBm
•signal level / RSSI diagram
•GSM network information like MCC, MNC, LAC…
•notification about base stations changes (green LED + vibrate alarm)
•notification about network/carrier changes (blue LED + vibrate) (for example roaming)
•list of used base stations
•WIFI information and signal diagram

Supported devices include Blackberry 9500, 9520, 9000, 9700, 8900, 8520, … with OS 5 or 4.7 and according to the product page it will NOT run and crash on CDMA BlackBerrys like 9530, 9550
OTA Download Link