Stanford Research FS710

The Stanford Research Systems FS710 is a 10 MHz AGC distribution amplifier that delivers seven stable outputs from a single input source. Built-in Automatic Gain Control compensates for up to 30 dB of cable loss, enabling 10 MHz reference distribution over distances approaching one mile. The transformer-coupled input accepts signals from 50 mVpp to 5 Vpp across the 10 MHz ± 100 kHz band, while all seven outputs deliver 1 Vpp into 50 Ω with ±10% stability.

Output level is adjustable from 0.75 to 1.25 Vpp via front-panel potentiometer. Input and output impedance are jumper-selectable between 50 Ω and 75 Ω, with VSWR below 1.2 at 10 MHz on both ports. Harmonic distortion remains below -25 dBc across the output spectrum.

Technical Specifications

• Frequency: 10 MHz ± 100 kHz


• Type: Insulated BNC, transformer coupled


• Level: 50 mVpp to 5 Vpp


• VSWR: <1.2 at 10 MHz


• Impedance: 50 or 75 Ω (jumper selectable) Output


• Quantity: 7 local grounded BNCs


• Level: 1 Vpp into 50 Ω, ±10% (adjustable 0.75–1.25 Vpp)


• VSWR: <1.2 at 10 MHz


• Distortion: < -25 dBc Gain Control


• AGC range: Up to 30 dB compensation Power


• Input: 100/120/220/240 VAC, 50/60 Hz


• Consumption: 3 W Physical


• Dimensions: 7.75" W × 2" H × 7.5" D


• Weight: 3 lbs Environmental


• Operating temperature: 0°C to 40°C

Key Features

• Single input drives seven independent outputs with AGC stabilization


• Transformer-coupled input isolation


• Dual impedance selection for flexible system integration


• Potentiometer-adjustable output amplitude


• Low harmonic distortion for precision timing applications


• Compact rack-compatible form factor

Typical Applications

• Multi-instrument 10 MHz clock distribution in measurement systems


• Long-distance frequency standard distribution with automatic cable loss compensation


• Laboratory timebase routing to geographically dispersed equipment

Compatibility & Integration The FS710 accepts standard BNC connectors on input and output. Impedance selection via jumper allows operation in both 50 Ω and 75 Ω systems. Universal AC mains voltage support (100–240 VAC) accommodates global installation environments.