This guide characterizes the performance of four software/instrument combinations for measuring 802.11a/b/g WLAN signals. Each combination offers a different set of features and performance to meet your needs. The hardware used in these combinations includes models from Agilent’s two spectrum analyzer lines, the vector signal analyzer family and the Infiniium oscilloscope line. The software used is the same PC-based analysis software used in Agilent’s popular vector signal analyzer products.