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Connecting to Keysight 8722ES by Agilent in Python

Instrument Card

The Agilent 8722ES Vector Network Analyzer (VNA) allows users to test a RF device’s amplitude and phase with one instrument. It works within 50 MHz to 40 GHz and enables the complete characterization of a device or network.

Keysight 8722ES

Device Specification: here

Manufacturer card: AGILENT

AGILENT

Keysight Technologies, or Keysight, is an American company that manufactures electronics test and measurement equipment and software

  • Headquarters: USA
  • Yearly Revenue (millions, USD): 5420
  • Vendor Website: here

Connect to the Keysight 8722ES in Python

PROTOCOLS > SCPI

from pymeasure.instruments import visa
from pymeasure.instruments.agilent import Agilent8722ES


# Connect to the instrument
resource_manager = visa.ResourceManager()
instrument = Agilent8722ES(resource_manager.open_resource('GPIB0::1::INSTR'))


# Set the start and stop frequencies
instrument.start_frequency = 1e6  # 1 MHz
instrument.stop_frequency = 1e9  # 1 GHz


# Set the number of scan points
instrument.scan_points = 101


# Perform a single scan
instrument.scan_single()


# Get the frequencies and data from the scan
frequencies = instrument.frequencies
data_magnitude = instrument.data_magnitude
data_phase = instrument.data_phase


# Print the frequencies and data
for frequency, magnitude, phase in zip(frequencies, data_magnitude, data_phase):
    print(f"Frequency: {frequency} Hz, Magnitude: {magnitude} dB, Phase: {phase} degrees")


# Disconnect from the instrument
instrument.disconnect()

This script connects to the instrument using the VISA library, sets the start and stop frequencies, and performs a single scan. It then retrieves the frequencies, magnitude, and phase data from the scan and prints them out. Finally, it disconnects from the instrument.

Note: Make sure to install the necessary dependencies (pymeasure, pyvisa, and numpy) before running the script.