Test & Measurement

Wideband I/Q data recorder enables field-to-lab tests

30th March 2020
Alex Lynn

For the users of an R&S FSV signal and spectrum analyser, and an R&S SMBV100A or R&S SGT100A vector signal generator, field-to-lab test scenarios are now possible with the R&S IQW100, a wideband I/Q data recorder. Typical applications for the R&S IQW100 are signals for cellular communication, EME, GNSS, or radio or TV broadcast.

Users can record signals acquired with the analyser in any chosen environment, then replay the recorded signals using the generator. Signals acquired with the analyser are transferred to the R&S IQW100 using the standard digital I/Q interface available with selected R&S equipment, and stored as IQ data.

To regenerate the recorded signal, the data is again transferred using the same standard R&S digital I/Q interface to the signal generator. Signals with a maximum bandwidth of 160MHz, with a sampling rate up to 200MS/s are supported; suitable for all WLAN/WiFi signals, and all mobile standards in current commercial use. 

The R&S IQW100 can also be used with the high end R&S FSW signal and spectrum analyzer and an R&S SMW200A vector signal generator. In addition to the standard R&S digital I/Q interface, the R&S IQW100 also includes the R&S HS DIG IQ interface, which is a high speed interface, supported by the high end analyser and generator. With the high end equipment, the maximum bandwidth supported is 200MHz, with a sampling rate up to 250MS/s.

Both the R&S IQW and R&S IQW100 are conventionally operated via LAN to input SCPI commands, or using a web based GUI that automatically adapts to the current screen size. Alternatively, operate locally either using the 5.7" TFT touchscreen, or by connecting a keyboard and mouse.

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