40GHz Premium Signal Generator



SKU: SG40000PRO Category:


[New for Q1 2023!]

Introducing the SG40000PRO, our highest-performance device yet!

A low-phase-noise 0.1 to 40GHz premium microwave signal generator.

After years of development DS Instrument’s new ultra-wideband microwave signal generator has been released. The PRO version offers full-band frequency coverage down to 100MHz, a more stable frequency reference, and more robust DC input options than the standard SG40000L. Like our SG6000 product line, this RF generator is fully programmable via SCPI commands, or the front panel interface making it more flexible than any competing product. With an all-new low-phase-noise synthesizer, the SG40000PRO is aimed at phase-noise sensitive applications in C, X, Ku, K, and Ka-band development, testing, and converting.

Includes the same oven-controlled precision 10MHz reference clock as the SG30000PRO!

SG40000PRO (2023) Device Features:

  • Total RF range covering 0.1 – 40GHz
  • Band 1 (SMA): 0.1 to 26GHz
  • Band 2 (29.2mm): 26 to 40GHz
  • Calibrated power control (LF – 26Ghz): -25dBm to +15dBm
  • Calibrated power control (26 – 40GHz): -15dBm to +15dBm
  • Uncalibrated max power: +16dBm typical
  • Digital attenuator step size: 0.5dB
  • Variable attenuator resolution (vernier control): ~0.05dB
  • Excellent phase noise: -90dBc @ 40GHz @ 10KHz offset
  • Extremely small frequency step size: 2Hz
  • Temperature compensated output
  • Calibrated power (LF-26GHz band) absolute accuracy: ±1.0dB typical
  • Calibrated power (26-40GHz band) absolute accuracy: ±2.0dB typical
  • Ultra-low-noise 100MHz VCXO locked to internal OCXO or external 10MHz reference
  • Internal 10MHz precision oven-controlled oscillator reference (±10PPB stability)
  • Compact powder-coated laser-etched enclosure
  • External dedicated sweep trigger port (MCX)
  • No-host-needed portable frequency sweeping support
  • Ethernet remote operation (DHCP default, static IP config)
  • Windows control software included (USB & Network enabled)
  • SCPI command aware via USB-C virtual COM port for remote control
  • Front controls and bright OLED display for stand-alone usage
  • Completely powered from Dual USB-C, no DC adapter required!

Common RF Applications:

  • Automated testing environments
  • General RF lab use
  • Flexible LO sourcing
  • Antenna design
  • EMC testing
  • Production verification and test setups
  • Educational / university lab use
  • Aerospace / Defense Research
  • 802.11n development / Testing
  • Ku-band satellite link testing
  • X-band radar applications
  • Ka-band development
  • Up-converting and down-converting
  • Line of sight link testing
  • Wireless infrastructure design
  • Transponder verification
  • 5G testing
  • mm wave technology

PC Control Application:

Free control software

Mechanical Specifications:


RF Performance Plots:


Additional information

Weight 2 lbs