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July 2025
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779465-01, 2 Channels, 3 GHz, Programmable, PXI-5690 RF Amplifier
Rated 4.8/5 | 20 ratings
Actual item may vary if no part number is provided on quote request.
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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 779465-01 PXI RF Amplifier
National Instruments part number 779465-01 is an identifying part number for the PXI-5690, a PXI RF Amplifier with 2 channels, 3 GHz programmable module with fixed and configurable gain. The NI 779465-01 allows users to bypass its gain by switching to a direct path programmatically. This capability enhances the testing and monitoring performance of PXI RF Vector Signal Analyzers by allowing the adjustment of dynamic range to effectively monitor signals ranging from very weak to very strong. It is designed for use with RF vector signal analyzers, such as the NI PXI-5660.
It functions as a straightforward device that either amplifies or attenuates its input signal based on the selected path and gain settings, with no triggering scheme required. In this model, Channel 0 (CH 0) operates as a fixed gain preamplifier with a gain of 30 dB. This channel features a low noise figure and a flat frequency response, allowing users to utilize CH 0 similarly to a conventional fixed gain preamplifier. Conversely, Channel 1 (CH 1) functions as a programmable preamplifier with two user-selectable paths.
On the 779465-01, the primary path includes fixed gain amplification followed by a step attenuator, adjustable in 1 dB increments via software according to the user-defined gain settings. The output gain range for this path is from -10 to +20 dB.
The direct path provides an option to bypass the attenuator-amplifier hardware, which is useful for handling higher power inputs that could potentially cause distortion in the RF preamplifier. This device weighs 9.2 oz and measures 8.5 x 0.8 x 5.1 inches in dimensions.
| Part Number | 779465-01 |
|---|---|
| Model Name | PXI-5690 |
| Part Type | PXI RF Amplifier |
| Frequency Range | 100 kHz to 3.0 GHz |
| Number of Channels | 2 |
| Maximum Amplitude Gain Accuracy (db) | 0.40 |
| Maximum Output Power | +20 dBm |
| Maximum Noise Density at Ch0 (db) | 10 |
| Dimensions | 8.5 x 0.8 x 5.1 in. |
| Weight | 9.2 oz. |
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