Model composition

PXIe: PXI Express high-speed modular instrument bus

56: NI PXI RF / IF test series

65: 14 GHz wideband VSA, supports digital down-conversion

Without suffix: Standard performance version

System composition (three-module combination)

3.6 GHz version: PXIe-5603 (down-converter) + PXIe-5622 (intermediate frequency digitizer) + PXIe-5653 (analog signal generator / local oscillator) NI

14 GHz version: PXIe-5605 (wideband down-converter) + PXIe-5622 + PXIe-5653 NI

Key technical indicators

Frequency range: 20 Hz～3.6 GHz or 20 Hz～14 GHz

Instantaneous bandwidth: Up to 50 MHz (3 dB)

Background noise: Typical -165 dBm/Hz (1 GHz, preamplifier on)

Phase noise: -129 dBc/Hz @ 10 kHz offset (800 MHz carrier)

Spurious-free dynamic range: Typical 80 dB

Third-order intermodulation point (IIP3): Typical +21 dBm

Amplitude accuracy: ±0.1 dB (absolute)

Digitizer: 16 bit, high-speed sampling; memory 64 MB / 256 MB selectable NI

Input interface: SMA, 50 Ω; maximum input power +10 dBm

Reference and timing: 10 MHz internal and external reference; PXI trigger bus, NI-TClk synchronization NI

Operating temperature: 0～55 ℃; storage -40～70 ℃

Calibration cycle: 2 years

Core features

Modular three-slot design, integrates down-conversion, digitization, and local oscillator generation, easy to integrate and expand NI

50 MHz wideband capture, compatible with 5G NR, Wi-Fi 6E/7, radar, etc. wideband signals

High sensitivity and linearity, stable and reliable for both weak signals and large signals measurement

Support RF List Mode, multi-band test quick switching, production line efficiency can be increased by approximately 10 times

Software-defined architecture, can switch between spectrum analysis and vector analysis; compatible with LabVIEW modulation toolkit, supports custom modulation analysis NI

Adapt to multiple standards: GSM, EDGE, WCDMA, LTE, Bluetooth, WLAN, DVB-C/H/T, ATSC, etc. NI

Typical applications

Wireless communication: 5G/4G terminal, Wi-Fi / Bluetooth / IoT module research and production testing NI

RF components: power amplifier, filter, mixer, front-end module performance characterization

Semiconductor: RF IC, SoC, transceiver chip ATE testing

Aerospace and defense: radar signal analysis, electronic warfare, satellite communication testing

Spectrum monitoring: high-sensitivity signal capture, interference analysis NI

Installation and usage tips

Installation: Three modules installed in adjacent slots of 3U PXIe, connect local oscillator, intermediate frequency, and RF lines; connect 10 MHz reference and trigger NI

Preheating: Preheat for 30 minutes before high-precision measurement

Protection: RF input does not exceed +10 dBm, to avoid front-end damage

Maintenance: Keep SMA interface clean, regularly check cables, calibrate once every 2 years NI