Willtek has upgraded its handheld spectrum analyser with the release of a new software package. The 9101 is a low-cost spectrum analyser that you can use in applications such as mobile-phone-service centres and wireless-local-loop testing and for 2.4-GHz WiFi systems (Picture). You can also use it as a low-cost, compact bench instrument for general-purpose testing. With a frequency range of 100 kHz to 4 GHz, the 9101 can test all commonly used wireless local oscillators and measure harmonics and spurs in the signal band. It weighs less than 5 lbs, including battery, and has a colour VGA LCD screen with 140° viewing angle. The new software release adds features such as limit templates to allow rapid pass/fail testing to predetermined values or to published standards. Upgraded channel-power measurements allow you to determine radiated power in a specified channel bandwidth, and an AM/FM-demodulation function allows you to monitor signals acoustically using a built-in loudspeaker.

The instrument has a displayed average noise level, in a 10-kHz resolution bandwidth (the minimum supported), of better than –105 dB to 3600 MHz. Level accuracy is ±1 dB, and dynamic range is 65 dB.

Willtek, +49 89 996 410, www.willtek.com.