EATON 2075 GPIB Control & Measurement Software

This software allows you to control the EATON 2075 Noise Figure Meter via GPIB, perform automated frequency scans, display and log Noise Figure (NF) and Gain measurements, and export results to CSV and PNG.

 

System Requirements

  • Windows PC with a GPIB interface (e.g., National Instruments, Prologix, or compatible adapter)
  • EATON 2075 Noise Figure Meter connected via GPIB
  • .NET Framework (matching the program’s build version)
  • Set different ENR table data for noise source calibration

Connecting to the Instrument

  1. Start the program.
  2. Set Board ID, Primary Address, and (if required) Secondary Address according to your GPIB configuration.
  3. Click Open to establish the GPIB connection.
    • If the connection is successful, status information will be displayed in the SRQ Info field.
    • If not, check your GPIB adapter, address settings, and cabling.

Basic Operation

  • Frequency Settings
    • Start Freq / Stop Freq / Step Freq: Define the scan range in MHz.
    • UGain / LGain: Set the upper and lower gain limits before starting a scan.
  • Measurement Format
    • Choose FO–F6 output format in the drop-down menu. Not visible now
  • Simulation Mode
    • Check “Simulated” to test without a real instrument (fake NF/Gain data will be generated).

Running a Scan

  1. (Optional) Adjust UGain and LGain settings.
  2. Ensure the instrument is not busy — the software will check automatically.
  3. Click Start Scan.
  4. The program will:
    • Set the gain limits (if not in simulation mode)
    • Step through the frequency range
    • Read NF and Gain for each frequency
    • Update the chart in real-time
    • Append data to the output window in CSV format

Loss Settings

  • Use Set Loss to enter pre-measurement cable loss values:
    • Loss Before: dB loss before the DUT
    • Loss After: dB loss after the DUT
    • Loss Temp (°C): Ambient temperature (converted to Kelvin internally)
  • No Loss resets these values to zero.

Calibration Functions

  • Frequency Calibration (FC): Aligns the frequency reference of the instrument.
  • Second Stage Calibration (CA): Performs the second-stage internal calibration.
  • Normal Calibration Mode (AF): Enables periodic auto-calibration during operation.

Exporting Data

  1. After a scan, click Export.
  2. Choose where to save:
    • CSV file: Contains exactly the data shown in the output window (with headers).
    • PNG image: Saves the chart with a timestamped title for documentation.
  3. Both files will share the same filename (different extensions).

Additional Features

  • Settings Persistence: All field values are saved to settings.json when the program closes and automatically loaded on startup.
  • Status Monitoring: The SRQ Info label updates with the instrument’s status in real time.

 

The program vill be available here when fully tested. Now just a test version, untested to my real instrument. I made this during my vacation, should work, but no guarantee yet.

eaton2075.zip

 

If you like the program and feel to donate use the Donate button.

 

 

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