R&S®IQR I/Q Data Recorder

Realtime recording and streaming of digital I/Q data

Applications

Error analysis up to a bandwidth of 40 MHz

Spectrum analyzers from Rohde & Schwarz can also be used as an RF frontend for the R&S®IQR. The spectrum analyzers receive a signal with a maximum width of 40 MHz at an input frequency of up to 40 GHz and mix it down to an IF frequency, which is then digitized. The R&S®IQR seamlessly records this digital data stream.

This signal can then be played by a signal generator. It is possible to change the frequency and manipulate the signal. As a result, DUTs can be tested to see how they respond to real signals from the field, such as DVB signals, signals from satellite navigation systems, mobile communications applications and WLAN, or how resistant they are to interference.

Via digital interfaces, the signal can also be input directly into the analyzer and then analyzed. This application is especially useful for finding sporadic errors or errors that occur after the DUT has been in operation for a long period of time. The source of errors cannot be fully detected unless recording is seamless. A few seconds of recording time using the analyzer's internal memory is usually not sufficient to ensure that the problem is detected. The R&S®IQR extends the recording time by several orders of magnitude, creating new possibilities for detection and subsequent analysis.

Using the R&S®TSMX-PPS GPS module and the R&S®IQR-K102 option, the R&S®IQR can simultaneously record I/Q data and the corresponding GPS coordinates.

R&S®IQR I/Q Data Recorder Applications

R&S®IQR with spectrum analyzer