Boonton Electronics, a Wireless Telecom Group Company, has introduced the 9100 Series of spectrum analyzers with frequency coverage from 100 kHz to 4 GHz. The analyzers feature displayed average noise level (DANL) of -135 dBm (with a 1-kHz resolution-bandwidth filter) and a variety of automatic measurement functions, such as measurements for channel power, occuplied bandwidth, and adjacent-channel power ratio (ACPR). For more information about the new spectrum analyzer line, visit the Boonton website at