R&S AFQ100B I.Q Modulation Generator



Brief Description

The R&S®AFQ100B with a bandwidth of 528 MHz (RF) is the correct choice for applications that require high bandwidth. Examples are the support of broadband digital communications systems such as UWB (ultra-wideband) or Aerospace & Defence (A&D) radar applications where signals with extremely short pulses and short rise and fall times might be needed.

Key Facts

  • Memory clock rate:
  • Standard mode (mode 1): Variable clock rate 
    (1 kHz to 300 MHz)
  • Broadband mode (mode 2): 600 MHz
  • 200 MHz RF bandwidth in standard mode
  • 528 MHz RF bandwidth in broadband mode
  • Long signal duration of up to 1 Gsample (option)
  • R&S®WinIQSIM2™ option for flexible UWB (ECMA-368) signal generation (R&S®AFQ-K264)
  • Almost all R&S®AFQ100A features included
  • R&S®Pulse Sequencer Software for generating complex pulse patterns (R&S®AFQ-K6 option)
  • Excellent spurious-free dynamic range (SFDR) of typ. 78 dBc
  • Digital standards like WCDMA, LTE, HSPA, WLAN802.11a/b/g/n/ac, MB-OFDM UWB ... using WinIQSIM2™
  • LXI Class C conformant



Output memory

Memory clock


1 kHz to 300 MHz (Mode 1)


600 MHz (Mode 2)

Waveform length (data and markers)

waveform memory (R&S®AFQ-B11)

up to 1 Gsample


waveform memory (R&S®AFQ-B12)

up to 512 Msample

Amplitude resolution of data words


16 bit analog and digital

System bandwidth (RF)

System bandwidth (RF)


200 MHz (Mode1)


528 MHz (Mode 2)

Signal output

Number of outputs


2 (I and Q)

Output (unbalanced)


1 V (Vpp)


level range

0 V to 1.5 V (Vpp)



14 bit


frequency response

±0.1 dB up to 100 MHz

Output (balanced)


1 V (Vpp)


level range

0 V to 1.4 V (Vpp)



14 bit


frequency response

±2.5 dB up to 264 MHz

Spurious free dynamic range


typ. 78 dBc

Digital outputs

Port 1


multiplexed I/Q data stream, compatible with other Rohde & Schwarz equipment

Port 2


parallel I/Q interface

Mass storage


160 GByte, removable hard disk



USB 2.0 (master and slave), Gigabit Ethernet, IEC 625 (IEEE 488)