Hidden Painting Mobile Phone Jamming Hidden Painting Mobile Phone Jamming Specifications Tx Frequency:(A)TX frequency 869-894MHz (B) ... (D) Tx frequency 1900-1990MHz (E) Tx frequency 2100-2200MHzAvailable system;Include analog (AMPS,TACS,NMT) and digital (GPRS,GSM, DCS ... Worship,Country Clubs,Hospitals,Meeting room,etc. Hidden Painting Mobile Phone Jamming