Spirent unveiled the SR5500 Wireless Channel Emulator, a device designed to emulate the transmission channel for receiver performance and WiMax interoperability testing. The Spirent SR5500 supports multiple emerging next-generation technologies and all relevant frequency bands, including the new 700 MHz and 2.& GHz bands. In addition to WiMax, the system can also test other technologies like HSPA, EV-DO and LTE.