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8 GHz PXI RF Amplifier—The PXI‑5691 is a 2‑channel, programmable amplifier offering one fixed gain path and one programmable gain path in a single‑slot 3U PXI module. The PXI‑5691 has gain and noise figure characteristics that optimize the dynamic range and sensitivity of compatible PXI RF Vector Signal Analyzers. The PXI‑5691 can also programmatically bypass its gain by switching to a direct path. This functionality enhances the testing and monitoring performance of compatible PXI RF Vector Signal Analyzers by enabling you to shift the dynamic range to easily monitor both very weak and very strong signals.