12GHz Signal Generator


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The DS Instruments SG12000L compact RF Signal Generator enables users to generate a high quality RF signal easily and at low cost. The output covers the entire 25 – 12000MHz frequency block. The produced wave is fully synthesized using modern fractional N synthesis. RF output step size varies from a maximum of ~6 KHz to less than 40 Hz, depending on band of operation. The synthesized source can accept an external 10 MHz reference, or it can use its own internal 10 MHz TCXO. Output power is calibrated between -25 and +13dBm, and can be set in 0.5dB steps over the entire frequency range. The crisp OLED display provides useful feedback for the user, and front control buttons provide a quick alternative to USB control. Optional Ethernet is now available, and full-band calibrated RF power control is standard. Like most of our products, the SG12000 easily fits in the palm of your hand, making it a truly portable and bench-space-saving device.

New REV15B with higher dynamic range and phase control shipping as of March 2023!

Low-phase-noise, harmonic-filtered PRO performance version here: SG12000PRO!

Microwave Signal Generator Specifications:

  • Frequency range: 25MHz 12GHz
  • Calibrated power level range: -25dBm to +13dBm
  • Uncalibrated power level range: -30dBm to +14dBm typical
  • Power control resolution: 0.5dB steps + 0.05dB vernier (variable attenuator)
  • Dimensions: 2.75″ x 1.25″ x 3.15″
  • Frequency step size: 40-6000Hz (depending on output frequency)
  • Phase noise at 6GHz: -72dBc @ 10KHz offset
  • Power Input: 5V Standard USB-C (0.75A)
  • Output Impedance: 50 Ohm
  • RF Connectors: Gold 18GHz SMA

Compact SG12000L Features:

  • Adjustable output power over the entire band
  • Frequency-sweeping support
  • Phase control from 0 to 360 degrees with 1.0-degree resolution
  • External reference frequency input (10 MHz MCX)
  • Internal 10MHz TCXO auto-reference (+/-280PPB)
  • Professional industry standard SCPI command support
  • Front frequency user frequency step buttons
  • Front-mounted bright OLED display
  • Sturdy all-aluminum black enclosure
  • Low input voltage monitor
  • Optional Ethernet port
  • Intuitive Windows control GUI

 Common Applications:

  • Automated testing environments
  • Radar systems
  • General RF Lab use
  • Flexible LO sourcing
  • Antenna design
  • EMC Testing
  • Production verification and testing
  • Educational / university lab use
  • Aerospace / Defense Research
  • X-band test setups

Featured on Microwave Journal, Microwaves&RFMilitary&Aerospace Electronics!

USB / Ethernet Control Software:



Enclosure Mechanical Information:



phase noise




UPC: 737212885858

Additional information

Weight N/A
Device Configuration

Ethernet & USB & Display, USB & Display