VeriWave generator helps support WiFi, radar coexistence
VeriWave's interference generator simplifies the creation of interfering waveforms in popular 802.11 bands to a point-and-click process.
-- Test & Measurement World, 4/6/2010 2:13:57 PM
VeriWave's new RF Interference and DFS Pulse Generator system lets developers of 802.11n-compliant WiFi chipsets, receivers, APs (access points), and user devices expand test coverage, reduce development cycles, and reduce the cost and complexity of testing. The generator speeds the development of and reduces the costs associated with ensuring new products comply with new rules for WiFi devices sharing radio bands with Bluetooth devices, microwave ovens, and civilian radar installations. Rather than requiring multiple signal generators to handle MIMO test capabilities, the RF Interference and DFS Pulse Generator system makes use of a VeriWave 802.11n WaveBlade instrument, which supports three spatial signal streams.
Eran Karoly, VP Marketing at VeriWave, explains that international certification commissions and IEEE specifications for 802.11n require WiFi devices to vacate channels in deference to radar systems. VeriWave's RF system features what Karoly calls a first-of-its-kind DFS (dynamic frequency selection) capability 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, while automating and repeating tests. Along with the expanded test coverage, the complex process of creating I/Q waveforms needed to model real world scenarios.
"The last thing a manufacturer wants to do is have a new product or release fail FCC or international certification tests for lack of pre-testing and have to delay shipment and essentially start again," says Karoly. "With so many more WiFi devices sharing the high-profile 5-GHz bands, our DFS pulse generator is the only cost-effective way to recreate live network conditions without outsourcing to expensive EMI labs."
Base price: $8995. VeriWave, www.veriwave.com.
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