PXIe-5654 Calibration Procedure

Calibration Executive 5.0.2 Help

Edition Date: October 2019

Part Number: 374564U-01

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This topic contains information for calibrating the National Instruments PXIe-5654 using Calibration Executive in a 64-bit Windows environment.

Calibration Executive Procedure Features:

Adjustment

supported
Manual Mode

unsupported
Selectable Test Points

unsupported

Approximate Test Time:

Verify Only
12 minutes
Adjust Only
47 minutes
Verify & Adjust
66 minutes

All devices require a 30-minute warmup period, which is not included in the test time estimates.

Test Equipment| Test Conditions| Device Setup| Test Limit Equations

Test Equipment

The following table lists the test equipment required for calibrating the PXIe-5654 module.

Instrument Recommended
Model
Where Used Requirements
Signal source analyzer Rhode & Schwarz FSUP26 Signal Source Analyzer Verifications:
  • 10 MHz reference amplitude accuracy
  • 100 MHz reference amplitude accuracy
  • RF OUT frequency accuracy
  • RF OUT phase noise
  • PULSE IN operation

Adjustments:

  • Frequency reference accuracy
Frequency range: 0.25 MHz to 20 GHz

Frequency counter resolution: 0.1 Hz

Phase noise measurement using cross-correlation

Frequency counter marker feature

Spectrum analysis capabilities

Frequency reference Symmetricom 8040C Rubidium Frequency Standard Verifications:
  • 10 MHz reference amplitude accuracy
  • 100 MHz reference amplitude accuracy
  • RF OUT frequency accuracy

Adjustments:

  • Frequency reference accuracy
Frequency: 10 MHz

Frequency accuracy: ±1 × 10-9

Power meter Anritsu ML2438A Verifications:
  • 10 MHz reference amplitude accuracy
  • 100 MHz reference amplitude accuracy
  • RF OUT amplitude accuracy
  • RF OUT maximum power
  • RF OUT minimum power

Adjustments:

  • RF OUT power
Frequency range: 250 kHz to 20.8 GHz

Dynamic range: -15 dBm to +20 dBm

Accuracy: < ±4.0%

Power sensor* Anritsu SC7413A Verifications:
  • 10 MHz reference amplitude accuracy
  • 100 MHz reference amplitude accuracy
  • RF OUT amplitude accuracy
  • RF OUT maximum power
  • RF OUT minimum power

Adjustments:

  • RF OUT power
Frequency range: 250 kHz to 20.8 GHz

Dynamic range: -15 dBm to +20 dBm

VSWR:
<1.04, 100 KHz to 10 MHz
<1.17, 10 MHz to 150 MHz
<1.08, 150 MHz to 2 GHz
<1.16, 2 GHz to 12.4 GHz
<1.21, 12.4 GHz to 18 GHz
<1.29, 18 GHz to 20.8 GHz

Accuracy: ≤4%

K(m)-to-K(m) cable Florida RF Labs KMS-160-36.0-KMS

Verifications:

  • RF OUT frequency accuracy
  • RF OUT phase noise

Adjustments:

  • Frequency reference accuracy
Length: 36 in.

Loss: <0.7 dB/ft. (typical) at 20 GHz

Impedance: 50 Ω

*NI recommends that, while using Calibration Executive, you do not use an adapter to extend the power sensor connection.

Test Conditions

The following setup and environmental conditions are required to ensure the PXIe-5654 meets published specifications.

  • Keep connections to the device short. Long cables and wires act as antennas, picking up noise that can affect measurements.
  • Verify that all connections to the module, including front panel connections and screws, are secure.
  • Keep relative humidity between 10% and 90% noncondensing.
  • Maintain an ambient temperature of 23 °C ± 5 °C.
  • Allow a warm-up time of at least 30 minutes after powering on all hardware, loading the operating system, and, if necessary, enabling the device. Unless manually disabled, the NI-RFSG driver automatically loads with the operating system and enables the device. The warm-up time brings the measurement circuitry of the device to a stable operating temperature.
  • Use an appropriate torque wrench to tighten all module RF connectors (SMA, 3.5 mm, or K). NI recommends a 0.565 N · m (5 lb · in.) wrench for SMA connectors and a 0.90 N · m (8 lb · in.) wrench for 3.5 mm or K connectors.
  • Connect the frequency reference source to the signal source analyzer REF IN back panel connector using a BNC(m)-to-BNC(m) cable, and connect the signal source analyzer REF OUT connector to the module's REF IN connector using a BNC(m)-to-SMA(m) cable.
  • Ensure that the PXI Express chassis fan speed is set to HI, that the fan filters, if included, are clean, and that the empty slots contain filler panels.
  • Plug the PXI Express chassis and the calibrator into the same power strip to avoid ground loops.
Note Note  The PXIe-5654 Calibration Procedure is supported only in a 64-bit Windows environment.
Note Note  Frequencies less than and equal to 10 GHz apply to both the 10 GHz and 20 GHz variants; frequencies above 10 GHz apply only to the 20 GHz module.

Device Setup

  1. Install the modules in the PXI Express chassis according to the instructions in the PXIe-5654 Getting Started Guide.
  2. Configure the hardware using Measurement & Automation Explorer (MAX).
  3. Launch the Calibration Executive procedure and complete the setup wizard.

Test Limit Equations

Frequency Accuracy

As Left Calculation: Initial Accuracy + Temperature Stability

As Found Calculation: Initial Accuracy + Aging + Temperature Stability

where

Initial Accuracy = ±0.1 ppm

Temperature Stability (15 °C to 35 °C) = ±0.2 ppm

10-year aging = 1.25 ppm

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