NJZ-1900B is designed to perform automatic or manual failure analysis of W-CDMA mobile stations based on 3GPP TS 34.121 specification. It controls via an Ethernet link to PC. • User friendly interface with user selectable test items • Supports signaling tests: Registration, UE origination and termination, release, and AMR (loop back) • Supports RF and power measurements : Max / min output power, open / inner loop power control, frequency error, modulation accuracy (EVM), reference sensitivity level, and current consumption (1) Maximum output power (2) Frequency error (3) Open loop power control (4) Inner loop power control (5) Minimum output power (6) Transmit off power (7) Modulation accuracy (EVM) (8) Reference sensitivity level (9) Current consumption * UE is tested by loop back test interface with 12.2kbps RMC. (1) Registration (Attach) (2) UE origination call (AMR) (3) UE termination call (AMR) (4) Release from Network or UE (5) AMR communication (Loop back at the tester side) AMR speech CODEC(12.2kbps fixed)