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July 2025
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NI 781261-01, 85 MHz to 6.6 GHz, 100 MHz, PXIe-5673E RF Vector Signal Generator
Rated 4.7/5 | 9 ratings
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Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
National Instruments 781261-01 RF Vector Signal Generator
National Instruments 781261-01 (an identifying part number for the PXIe-5673E Model) RF Vector Signal Generator is a comprehensive solution designed for RF signal generation and modulation tasks in various industrial and research settings. It is made up of multiple PXI Express hardware modules, such as the PXIe-5611 IQ modulator, the PXIe-5450/5451 arbitrary waveform generator (AWG), and the PXIe-5650/5651/5652 RF analog signal generator (LO source). When combined, these modules provide an impressive instantaneous bandwidth of 100 MHz and a broad frequency range of 85 MHz to 6.6 GHz.
With an amazing dynamic range of 156 dB compression-to-noise, the 781261-01 is an excellent signal deliverer. At 0 dBm output level, its noise density is usually as low as -144 dBm/Hz. Complex signal creation processes are made easier for users by the efficient storing and manipulation of signals made possible by the onboard waveform memory.
A notable characteristic of this system is the smooth integration made possible by the NI-RFSG instrument driver software, which enables every module to operate as a single, cohesive unit. This smooth functioning increases overall efficiency by streamlining configuration and control.
The system is physically contained within a PXI/3U CompactPCI form factor that has four slots wide, guaranteeing compatibility and simple integration with current configurations. Each module's front panel connectors, which include SMA and SMB connectors for a range of input and output signal types, provide flexible connectivity choices.
The 781261-01 has fast rise and fall periods (less than 5 ns) and a maximum pulse repetition frequency (50 MHz) for pulse modulation. Furthermore, it offers accurate control over output parameters and strong overload prevention features.
To provide dependable and secure operation, the PXIe-5611 IQ modulator module has overload protection for both DC input and RF power. With exact power output resolution and impedance matching, the front panel's LO output operates across a broad frequency range of 50 MHz to 6.6 GHz.
The National Instruments 781261-01 RF Vector Signal Generator is an indispensable instrument for wireless communications, radar, electronic warfare, and RF component testing.
| Part Number | 781261-01 |
|---|---|
| Model Name | PXIe-5673E |
| Part Type | RF Vector Signal Generator |
| Frequency Range | 85 MHz to 6.6 GHz |
| Bandwidth | 100 MHz |
| Dynamic Range | 156 dB |
| Noise Density | -144 dBm/Hz |
| Onboard Memory | Up to 512 MB |
| Form Factor | Four-slot wide PXI/3U CompactPCI |
| Integration | NI-RFSG instrument driver software |
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