R&S SMA100A Analog Signal Generator


R&S®SMA100A Signal Generator

Brief Description

Signal quality, speed and flexibility – these are the criteria by which signal generators are measured today. The R&S®SMA100A perfectly meets these criteria, and thus is a premium-class analog generator that sets standards due to its outstanding characteristics.

It combines superior signal quality with very high setting speed. Whether in development, production, service or maintenance, the R&S®SMA100A does an excellent job.

In the frequency range from 9 kHz to 6 GHz, R&S®SMA100A can generate CW signals as well as all common types of analog modulation (AM, FM, φM, pulse modulation). Excellent specifications and a wide range of modulation signals – these are the characteristic features of the R&S®SMA100A.

In addition, a low-jitter clock synthesizer option supplies differential clock signals of up to 1.5 GHz independently of the RF frequency. This makes the R&S®SMA100A suitable for a variety of applications – from use in phase noise test systems through to tests on mixed-signal ICs.

The R&S®SMA100A signal generator also offers a modern graphical user interface for fast and intuitive operation.

The R&S®NRP-Zxx power sensors can be connected to the R&S®SMA100A. The user can therefore perform very precise power measurements directly with the signal generator.

Key Facts

  • Frequency options from 9 kHz to 3 GHz/6 GHz
  • Very low SSB phase noise of typ. -139.5 dBc (at 1 GHz, 20 kHz offset, 1 Hz measurement bandwidth) with option
  • Nonharmonics  10 kHz) with option
  • High output power of up to +18 dBm (+28 dBm in overrange)
  • Emulation of legacy instruments
  • Electronic attenuator with built-in overvoltage protection over entire frequency range





Frequency range

9 kHz to 3 GHz/ 6 GHz

Setting time

< 2 ms



–145 dBm to +18 dBm (up to +28 dBm overrange)

Setting time

< 1.5 ms

Setting time in List mode/Fast Hopping modey

< 450 μs

Spectral purity (at f = 1 GHz)

Nonharmonics (carrier offset > 10 kHz, f ≤ 1500 MHz)

< –80 dBc
< –90 dBc with the R&S®SMA-B22 option

SSB phase noise (20 kHz carrier offset, 1 Hz measurement bandwidth)

< –131 dBc (typ. –134 dBc)
< –136 dBc (typ. –139.5 dBc) with the R&S®SMA-B22 option

Wideband noise (carrier offset > 10 MHz, 1 Hz measurement bandwidth, 750 MHz < f ≤ 1500 MHz)

< –153 dBc (–160 dBc, meas.)

Supported modulation modes




optional (with the R&S®SMA-B20/R&S®SMA-B22 options)



Chirped pulses

optional (with the R&S®SMA-B20/R&S®SMA-B22 options)


optional (with the R&S®SMA-K25 option)


optional (with the R&S®SMA-K26 option)

Clock synthesis

Frequency range

100 kHz to 1.5 GHz (with the R&S®SMA-B29 option)


IEEE 488.2, LAN (10/100BaseT), 2 × USB, 1 × USB slave