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Rohde & Schwarz – AMIQ I/Q Modulation Generator

Rohde & Schwarz – AMIQ I/Q Modulation Generator


I/Q Modulation Generator AMIQ and Simulation Software WinIQSIM open up new dimensions for the generation of I/Q signals. AMIQ is a dual-channel modulation generator that has consequently been designed for use as an I/Q source. It is programmed and set with Software WinIQSIM. Alternatively, AMIQ can be operated from an SMIQ Vector Signal Generator. Each channel can store 4,000,000 samples. Even at high symbol rates, sequences of sufficient length can thus be generated. With clock frequencies of up to 100 Msample/s and a high amplitude resolution of 14 bits, AMIQ is the ideal source for any signal in the world of digital modulation. An automatic amplitude/offset alignment, as well as fine adjustment of the skew, provide excellent symmetry of the two channels which previously was extremely difficult to attain with the dual-channel ARB generators. The error vector can thus be minimized. A typical application of AMIQ and WinIQSIM is not only to drive the I/Q inputs of a vector signal generator. This combination is also ideal for direct applications in the baseband, e.g. for testing I/Q modulators/demodulators.

The Rohde & Schwarz AMIQ IQ Modulation Generator, opens up new dimensions for the generation of I/Q signals. It is a dual-channel modulation generator that has consequently been designed for use as an I/Q source.

Rohde & Schwarz AMIQ Features:

  • 14-bit resolution (up to 16 bits via digital I/Q output)
  • 16 000 000 samples memory depth
  • 100 MHz sample rate
  • Intergrated hard disk and FDD
  • Optional BER measurement
  • Optional differential I/Q outputs
  • Optional digital I/Q output

 Other features and specifications include:

  • 14-bit resolution
  • Excellent ACP
  • 100 MHz sample rate
  • Fine adjustment of I/Q skew
  • 78 dB ACP dynamic range (typical of 3GPP FDD)
  • Integrated hard disk and floppy drive
  • BER Measurement (w/ option B1)
  • 4,000,000/16,000,000 sample memory depth
  • Generation of broadband digital communication signals (WCDMA, HiperLAN2, IEEE 802.11a)
  • Downloading of calculated waveforms and signals also from integrated¬† floppy disk drive
  • Auto-alignment and additional user correction of amplitude and offset
  • Wide dynamic range through the use of 14-bit D/A converter, ideal for multicarrier applications

WinIQSIM software is a Windows program for calculating I and Q baseband signals allows simple generation of complex modulation signals. Functionality ranges from single-carrier modulation, generation of multicarrier, CDMA and WCDMA signals through to TDMA frame configuration with the help of convenient data editor. All modulation parameters and impairments can be simulated for single-carrier, multicarrier as well as for CDMA signals. Complex modulation signals can be generated, such as WCDMA 3GPP, which is similar to QPSK, or 8PSK EDGE modulation with 3?/8 shifting for the EDGE enhancement in the GSM standard. OFDM for HIPERLAN/2, where a data stream is transferred via a large number of carriers is a special modulation format that can also be generated.


14-Bit Resolution (16-Bit with AMIQ-B3)
4,000,000/16,000,000 Samples Memory Depth
100 MHz Sample Rate
Integrated Hard Disk and Floppy Disk Drive


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