Connecting to SG384 by Stanford Research Systems in Python

Instrument Card

The SG380 Series RF Signal Generators use a unique, innovative architecture (Rational Approximation Frequency Synthesis) to deliver ultra-high frequency resolution (1 µHz), excellent phase noise, and versatile modulation capabilities (AM, FM, ØM, pulse modulation and sweeps) at a fraction of the cost of competing designs. The standard models produce sine waves from DC to 2.025 GHz (SG382), 4.05 GHz (SG384) and 6.075 GHz (SG386).

Device Specification: here

Manufacturer card: STANFORD RESEARCH SYSTEMS

Stanford Research Systems is a maker of general test and measurement instruments. The company was founded in 1980, is privately held, and is not affiliated with Stanford University.

• Headquarters: USA
• Yearly Revenue (millions, USD): 25
• Vendor Website: here

Connect to the SG384 in Python

Read our guide for turning Python scripts into Flojoy nodes.

Flojoy

PROTOCOLS > SCPI

📄 IDN

Query a device's identity through the universal *IDN? SCPI command.

📄 MEASURE VOLTAGE

Query an instrument's measured output voltage, such as a DMM or power supply.

📄 SCPI WRITE

Write a SCPI command to a connected bench-top instrument and return the result.

QCodes

from qcodes.instrument_drivers.stanford_research.SG384 import SG384

# Connect to the SG384 RF Signal Generator
sg = SG384('sg', 'TCPIP0::192.168.1.1::inst0::INSTR')

# Set the frequency to 1 MHz
sg.frequency(1e6)

# Get the current frequency
frequency = sg.frequency()
print(frequency)

# Set the amplitude of the BNC output to -10 dBm
sg.amplitude_LF(-10)

# Get the current amplitude of the BNC output
amplitude = sg.amplitude_LF()
print(amplitude)

# Enable the RF output
sg.enable_RF('ON')

# Disable the BNC output
sg.enable_LF('OFF')

# Close the connection to the SG384 RF Signal Generator
sg.close()

This script connects to the SG384 RF Signal Generator using the IP address ‘192.168.1.1’. It sets the frequency to 1 MHz, gets the current frequency, sets the amplitude of the BNC output to -10 dBm, gets the current amplitude of the BNC output, enables the RF output, disables the BNC output, and finally closes the connection to the SG384 RF Signal Generator.