General Counter : Rohde & Schwarz AFQ100A

R&S®AFQ100A I/Q Modulation Generator Digital communications systems are rapidly evolving today, calling for test equipment that can meet the new challenges they present. An important component of such test equipment is a flexible baseband source that allows development and production tests to be performed on state-of-the-art receivers for a variety of standards. A self-contained baseband source must fulfill a wide range of signal requirements. Plus, it needs variable digital and analog outputs in order to directly operate the DUT. Used as a modulation source for vector signal generators, the R&S® AFQ100A provides I/Q signals that offer all the sophistication of modern communications standards for generating the required RF signal. Broad scope of applications * Variable memory clock rate (1 kHz to 300 MHz) can be optimally adjusted to the useful signal * Maximum I/Q bandwidth of up to 100 MHz for an RF bandwidth of 200 MHz * Long signal duration – 256 Msample or 1 Gsample * Analog I/Q outputs (balanced and unbalanced) and optional digital outputs * Variable output level at the analog outputs * Multisegment waveform reduces switching time between different signals; no reloading required * Optimum memory use due to integrated clock rate converter and memory granularity of 1 * Shiftable markers without disrupting and recalculating the output signal Outstanding signal quality * Excellent spurious free dynamic range (SFDR) of typ. 83 dBc (1 MHz signal at 100 MHz bandwidth) * Frequency response typ. 0.05 dB across 100 MHz I/Q bandwidth * Versatile impairments o Settable skew with 10 ps resolution to allow exact adjustment of different cable lengths o Gain and offset for I and Q can be set independently o Phase error * Loadable equalization to compensate for external components such as I/Q modulators (minimum frequency response in realtime across all components involved) * Adjustment of DC offsets by biasing the differential I/Q outputs Connectors and operation * Remote control via GPIB, USB and LAN * User interface via external monitor or Windows XP Remote Desktop * R&S® WinIQSIM2™ for controlling the R&S® AFQ100A and generating test signals in line with different standards * Direct control via MATLAB® * USB connectors for USB equipment (keyboard, mouse, memory stick)

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• Model: AFQ100A
• Manufactured by: Rohde & Schwarz