VeriWave's new RFI (radio-frequency-interference) and DFS (dynamic-frequency-selection) pulse-generator system lets developers of 802.11n-compliant Wi-Fi chip sets, receivers, access points, and user devices expand test coverage. The generator speeds the development of and reduces the costs associated with ensuring that new products comply with new rules for Wi-Fi devices sharing radio bands with Bluetooth devices, microwave ovens, and civilian radar installations. Rather than requiring multiple signal generators to handle MIMO (multiple-input/multiple-output)-test capabilities, the RFI and DFS pulse-generator system uses a VeriWave 802.11n WaveBlade instrument, which supports three spatial signal streams. Eran Karoly, vice president of marketing at VeriWave, explains that international certification commissions and IEEE specifications for 802.11n require Wi-Fi devices to vacate channels in deference to radar systems. VeriWave's RF system features DFS ability that introduces radar traffic into the mix along with traditional RF-test traffic.
VeriWave's interference generator simplifies the creation of interfering waveforms in popular 802.11 bands to a point-and-click process, allowing testers to configure and modify traffic characteristics, including signal strength, burst lengths, and burst rates; it also automates and repeats tests. Along with the expanded test coverage, the generator simplifies the creation of I/Q (in-phase/quadrature) waveforms for modeling real-world scenarios. The base price for the system is $8995.
