CMD80 is the first compact tester worldwide for CDMA, AMPS, D-AMPS (TDMA) and TACS mobile stations. The mobile’s RF parameters are verified under the same conditions as in the real network, ie the tester simulates a tri-mode/dual-band base station, makes a call to the mobile and performs the measurements without any special test mode in the DUT. The
following networks and frequency bands are supported: US Cellular [800 MHz: CDMA (IS95), D-AMPS/NADC (IS136, IS54), AMPS/NAMPS (IS95)], Japan Cellular [CDMA (T53, IS95) N-TACS/J-TACS], China Cellular [CDMA (UB-IS95, J-STD008) E-TACS/TACS], US GSM [1900 MHz (CDMA UB-IS95, J-STD008, D-AMPS/NADC IS136, IS54), Korea GSM [1800 MHz (CDMA J-STD008, UB-IS95)].
High measurement speed and remotecontrol capability via IEC/IEEE bus make the tester ideal for use in production. Its high measurement accuracy is indispensable in particular in the development of mobile stations. A user-friendly operating concept and fast functional tests allow ccost-effective working in service applications.
Tektronix CMD80 Main Features:
Fast measurements
State-of-the-art digital technology leads to quick and efficient measurements. In remote-control mode via
IEC/IEEE bus, the instrument is exceptionally fast and yields high throughput in production.
High flexibility
Almost every signaling and measurement parameter can be modified by the user either dynamically during a test or in advance in the configuration menu. Even the tolerances for the pass/fail limits can be changed to match the requirements of the application. The different configurations can be separately stored and recalled any time at the push of a button.
Easy to use
Operation of the CMD80 is extremely user-friendly and requires no detailed knowledge. The large high-contrast LCD with softkeys on both sides allows convenient menu-guided access to the test routines. A voice loop-back allows quick verification of the performance of a mobile as it is perceived by the user. During a call in data loop-back mode CMD80 checks the basic signalling features and the RF performance.
Test capabilities
Simulation of a base station Digital Radiocommunication Tester CMD80 simulates a tri-mode/dualband base station and provides all the signalling necessary for a call (synchronization, registration, incoming/ outgoing call origination, tri-mode/dual-band handoffs and echo mode). This also allows checking of all software features that are required for correct operation of the network. This eliminates in many cases the need for expensive customer-specific test beds in development and quality assurance.
Autorun
Custom-tailored autorun applications allow any test routines to be implemented. Complete tests of mobile phones can be performed at the push of a button. Due to the individual configuration, the test time is reduced to a minimum.
Tests
All the essential features of a mobile station can be tested with high accuracy. CMD80 not only verifies the RF performance of the mobile station but, in addition, checks all software features that are important for the correct operation of the network. CMD80 measures for instance the following parameters to IS98/J-STD-18 specification in CDMA:
- Transmitter measurements
- Magnitude error
- Phase error
- Error vector amplitude
- Signal quality
- Carrier feedthrough
- Frequency accuracy
- Power measurements
- Receiver measurements
- Transmission error
DC measurements
The DC ammeter/voltmeter for pulsed signals allows accurate measurement of the power consumption of the mobile station.
Measurements at protocol level
The optional Message Monitor (CMDB83) allows measurements at protocol level. The convenient Windows program clearly displays CDMA forward/reverse link messages and is an indispensable tool especially in the development of mobile units.
