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NI 781259-02, 10 MHz ±10 × 10^-6, 50 Ohms, 533 nHz, PXIe-5663E Vector Signal Analyzer
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National Instruments 781259-02 PXIe-5663E Vector Signal Analyzer
The National Instruments 781259-02 (PXIe-5663E) is a high-performance, 6.6 GHz modular vector signal analyzer (VSA) engineered for wideband RF signal analysis, automated wireless test, and spectrum monitoring. Operating across a broad frequency range from 10 MHz to 6.6 GHz with a fine 533 nHz tuning resolution and a standard 50 Ω input impedance, it delivers up to 50 MHz of real-time instantaneous equalized bandwidth (10 MHz bandwidth from 10 MHz to 120 MHz; 20 MHz bandwidth from 120 MHz to 330 MHz; and 50 MHz bandwidth from 330 MHz to 6.6 GHz).
The analyzer’s intermediate frequency (IF) and digitizer stage employs a high-speed 16-bit analog-to-digital converter operating at a 150 MS/s sample rate. Its integrated onboard digital downconverter (DDC) provides adjustable analysis bandwidths ranging from 50 MHz down to 0.9 kHz, maintaining outstanding phase linearity during wideband captures (±3.0° max deviation below 120 MHz and ±4.5° max deviation up to 6.6 GHz). Selectivity performance is highly configurable via software windowing functions, achieving a 60 dB to 3 dB shape factor ratio of 2.5 max with a Flat Top window and 4.1 max with a 7-term Blackman-Harris window.
Designed for exceptional dynamic range and measurement accuracy, the PXIe-5663E spans an amplitude range from the average noise level up to +30 dBm, maintaining amplitude settling accuracy within 0.1 dB of final value (settling within 50 µs to 5 ms depending on step size). Local oscillator (LO) isolation prevents interference at the RF input, keeping LO leakage below -60 dBm up to 3.0 GHz and below -55 dBm through 6.6 GHz. Integrating locked timing support to external 10 MHz reference signals (locking within 1 second max), the module provides a flexible, modular foundation for complex modulation analysis, spectral mask testing, and multi-channel synchronized RF test platforms.
Part Number |
781259-02 |
|---|---|
Model Name |
PXIe-5663E |
Part Type |
6.6 GHz Vector Signal Analyzer |
Tuning Resolution |
533 NHz |
Input Impedance |
50 Ohms |
Frequency |
10 MHz ±10 × 10^-6 |
Amplitude Range |
Average Noise Level To +30 DBm |
Peak-To-Peak Amplitude |
0.2 V To 1.5 V |
Lock Time To External Reference |
1 S Maximum |
Frequency Range |
10 MHz To 6.6 GHz |
Associated part numbers for 781259-02:
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Eligible returns may be accepted within 30 days at Apex Waves’ discretion. A 25% restocking fee applies; non-refundable and built-to-order products are excluded.
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