Analyser with real-time option detects short and sporadic events

June 04, 2013 // By Graham Prophet
A measurement option from Rohde & Schwarz for the R&S FSW high-end signal and spectrum analyser supports real-time signal analysis for frequencies up to 50 GHz with an analysis bandwidth of 160 MHz. This makes it possible to detect interfering signals to the exact level and without gaps.

The K160R option for the FSW high-end signal and spectrum analyser also upgrades the R&S FSW to a real-time spectrum analyser. This gives users a single instrument that can be used for traditional spectrum analysis with excellent RF characteristics as well as spectrum analysis without any time gaps and a bandwidth of up to 160 MHz in real-time mode. The R&S FSW detects even short, sporadic events that would otherwise be hard to identify without taking up a great deal of time.

Real-time analysis offers advantages wherever sporadic interference or brief events need to be identified with 100 percent reliability. Real-time analysis makes it possible to monitor the hopping sequences of frequency-agile systems and test colliding signals such as WLAN and Bluetooth that are using the same frequency range. It can also be used to test transient response and frequency hops of oscillators and frequency synthesisers, since even brief signal errors can result in massive interference in many communications applications. The new R&S FSW K160R option eliminates the need for an additional measuring instrument.

With 600,000 FFT/sec in real-time mode, the R&S FSW has twice the time resolution of other instruments available on the market. The analyser covers the entire frequency range from 2 Hz to 50 GHz. Using Rohde & Schwarz harmonic mixers, it can also be expanded to include frequencies up to 110 GHz. The simple touchscreen operation with block diagrams for the analysis functions on a large 31-cm screen considerably simplifies complex measurement tasks.

Rohde & Schwarz,