The development of present and future wireless systems and communications imposes heavy requirements on product development methods and testing. The understanding of the radio channel behavior is a key success factor.

Traditional field testing of wireless telecommunication systems has some drawbacks. Field testing is generally a labor-intensive, time-consuming and expensive process. When performing testing in the field, testing of different environments requires physically moving the testing equipment to another geographical location. Field testing results are specific to the environment, location and time.

They are non-repeatable, even under the exact same test setup, location and test scenario conditions. This is due to the fact that with field testing there is no real control over the natural environment or the radio channel effects. As a transmission signal propagates through the radio channel it is affected by many different phenomena, such as path loss, shadowing, multipath fading, delay spread, Doppler spread, angle spread, polarization effects as well as the addition of interference. These phenomena are somewhat random and depend on the time and place the test is performed.

Radio channel emulators are tools for air interface testing, replacing the real-world radio channel between a transmitter and a receiver. Our product family of radio channel emulators provides realistic and repeatable test conditions for air interface testing in your lab. You can test and verify the performance and functionality of your receiver and transmitter designs, and wireless systems against the deployment environment.

The latest release for EB Propsim C8 includes updates on standardized conformance test models and ready-to-run emulations e.g. for LTE (release 8), WCDMA/UMTS (release 6 and 7), WiMAX (release 1.5), WLAN/WiFi, DVB receivers, terminals and base stations.

The EB Propsim product family of radio channel emulators includes:

• The EB Propsim C8 is an ideal radio channel emulator for basically all existing mobile cellular communication and WLAN/WiMAX applications. The EB Propsim C8 is used in both standard testing and advanced testing beyond standard requirements. Especially the good EVM (error vector magnitude) performance and small insertion delay give good potential for WLAN and WiMAX testing.

• The EB Propsim F8 is a next generation, high end radio channel emulator offering remarkable improvements over the current channel emulators available in the market. It is an ideal solution for testing any future wireless system, while providing backward compatibility with the EB Propsim C8 and C2 emulators. It has been designed keeping in mind especially the advanced requirements of 4G and beyond as well as 3GPP LTE and Mobile WiMAX testing requirements.up to 125MHz bandwidth with 4x4 MIMO in a single unit)

• The EB Propsim FE is designed for the testing of low frequency applications and cellular applications from 2G to 3G (GSM/GPRS/EDGE, WCDMA, CDMA/CDMA2000) and different digital broadcasting standards (DVB-T/H, DMB- T/S and ISDB-T). The same unit can be fitted with HF and RF channels.