R&S®AFQ100A I/Q Modulation Generator

Meeting new challenges in baseband signal generation

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
    • Settable skew with 10 ps resolution to allow exact adjustment of different cable lengths
    • Gain and offset for I and Q can be set independently
    • Phase error
  • Loadable equalization to compensate for external components such as I/Q modulators (minimum frequency response in realtime across all components involved)

Connectors and operation

  • Adjustment of DC offsets by biasing the differential I/Q outputs
  • 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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