Model Definition

• PXIe: PXI Express high‑speed modular bus

• 56: NI PXI RF/microwave test series

• 93: RF preselector with 7 GHz coverage and integrated LNA/filter bank

• Module type: RF preconditioning front‑end (not a generator or analyzer)

Key Specifications

• Frequency ranges

  • Bypass path: 20 Hz to 30 MHz

  • Preselector path: 20 MHz to 7.0 GHz

  • External filter path: 20 MHz to 3.0 GHzNI

• Preselector filters: 16 integrated sub‑octave bandpass filters

• Gain: +20 dB typical (LNA selectable; bypassable)

• Noise figure: <3.5 dB (typical, 50 Ω)

• Input impedance: 50 Ω (SMA female)

• Max input power: +10 dBm (continuous)

• VSWR: <1.2 (20 MHz–7 GHz)NI

• Self‑calibration: Built‑in 10 MHz calibration tone

• Operating temperature: 0 °C to 55 °C

• Calibration interval: 2 years

Interface & Communication Configuration

• Host bus: PXI Express Gen 1, PXI/PXIe chassis compatible

• RF input: SMA female, 50 Ω

• RF output: SMA female (to receiver/analyzer)

• Control: PXI backplane, NI‑5693 driver software

• Synchronization: PXI trigger bus, 10 MHz reference I/O

• Software support: LabVIEW, LabWindows/CVI, C#, Python

Core Functions

• RF preselection: 16 integrated bandpass filters suppress out‑of‑band interference, harmonics, and image signals.

• Low‑noise amplification: Selectable +20 dB LNA improves system sensitivity and noise floor.

• Multi‑path routing: Low‑frequency bypass, preselector, and external filter paths support flexible measurement setupsNI.

• Self‑calibration: Internal calibration tone corrects flatness and gain drift across frequency.

• High‑dynamic‑range front‑end: Reduces LO leakage and spurious responses for accurate EVM and spectrum measurements.

Applications

• Spectrum monitoring & surveillance: Interference detection and signal purification.

• Wireless communications: 5G NR, LTE, Wi‑Fi 6/7, and IoT device testing.

• RF component test: Amplifiers, filters, mixers, and front‑end modules.

• Semiconductor: RF IC, transceiver, and SoC characterization.

• Aerospace & defense: Radar, electronic warfare, and satellite communication test.

Usage & Maintenance

• Installation: Insert into 3U PXIe chassis; connect RF IN from DUT and RF OUT to receiver/analyzer.

• Warm‑up: 30 minutes at ambient temperature before high‑accuracy measurements.

• Operation: Select filter path and LNA state via software; avoid input over +10 dBm.

• Maintenance: Keep SMA connectors clean and dry; inspect cables periodically.

• Calibration: Perform self‑calibration monthly; factory calibrate every 2 years.