DS Instruments SG6000F Low-Harmonic Generator

The DS Instruments SG6000F RF Signal Generator continues to set the industry standard for affordable, ultra-compact RF signal generation.

The SG6000F delivers a pure low-distortion sine wave, unlike most other compact generators. Its modern fractional-N synthesis covers the full 25 MHz – 6 GHz range with stable output power and very low harmonic content.

Calibrated output power is adjustable from –25 to +13 dBm in 0.25 dB steps, or continuously via the internal variable attenuator.

The bright OLED display and front-panel buttons make local control easy, while USB Type-C and Ethernet interfaces (standard since Rev 7 Q4 2025, DHCP or static IP) provide full remote operation through SCPI commands.

The updated Rev 7 hardware introduces a more robust output amplifier, enhanced internal attenuator, and full-band active harmonic filtering.

The SG6000F is ideal for precision RF testing where low distortion and high signal purity are required. For even lower phase noise and smaller frequency step size, see SG6000PRO.

Key Features

• Upgraded output amplifier (Rev 7 Q4 2025)
• Full-band active harmonic filtering
• Phase control 0–360 °
• External sweep trigger input (MCX, active low)
• USB Type-C and Ethernet remote control (DHCP / Static IP)
• 25 MHz – 6 GHz output frequency range
• Adjustable calibrated output power (step & variable)
• Industry-standard SCPI command support
• Internal 10 MHz TCXO reference (±2.5 ppm, MCX connector)
• On-device frequency sweeping with front-panel buttons
• Bright front-mounted OLED display
• Simple Windows control GUI
• Compatible with .NET, Matlab, Python, Android and Linux
• Powered via 5 V USB Type-C

Specifications

• Frequency Range: 25 – 6000 MHz
• Calibrated Output Power: –25 to +13 dBm
• Harmonic Levels: < –32 dBc (25 MHz – 6 GHz)
• Phase Noise: –74 dBc @ 10 kHz offset
• Internal Digital Attenuator: 64 × 0.25 dB steps
• Internal Variable Attenuator: ≈ 15 dB (12-bit DAC)
• Output Impedance: 50 Ω
• RF Connector: Premium gold microwave SMA
• Power Input: 5 V @ 0.75 A max (USB Type-C)
• Dimensions: 2.75″ × 1.25″ × 3.15″ (70 × 32 × 80 mm)

Common Applications

• Automated test environments
• General RF laboratory use
• Flexible LO sourcing
• Antenna and filter design
• EMC testing
• Production verification and testing
• Educational and university labs
• Aerospace and defense research
• 802.11n and LTE engineering

Looking for lower phase-noise and smaller frequency step size? SG6000PRO