National Instruments PXIe-5693 PXI RF Preselector Module

The PXIe-5693 (Part Number: 782549-01) is an advanced RF Preselector Module from National Instruments. This module offers a frequency bandwidth ranging from 20 MHz to 7 GHz. The NI PXIe-5693 module operates as a spectrum monitoring receiver, which enables the preselection and pre-amplification capabilities. This module can be used for the regulation of spectrum and detection mechanism of interference for the signals under test. The PXIe-5693 RF Preselector Module can additionally be used for radio monitoring requirements.

The NI PXIe-5693 comes with sixteen built-in filters; these are highly tuned sub-octave bandpass filters. They aid in suppressing the signals from various recognized bands, such as FM band and TV band. The module can detect the signals that are not desired more conveniently. The instrument also incorporates self-calibration to further enhance the measurement accuracy and reliability of the device. There is a built-in calibration tone for this purpose, which enables the capability to carry out the tuning process over the entire range of the frequency. It allows the PXIe-5693 module to correct the response of the flatness.

The National Instruments PXIe-5693 RF Preselector Module has a bypass signal path for low frequencies, as well as a signal path for the external filter. It further enhances the measurement capabilities of the device. The module enables the user to remove unwanted harmonic frequencies from signals. The module requires only one slot in a PXI Express Chassis. The low-frequency bypass path works for the frequency range of DC to 30 MHz. It makes use of the SMA-to-SMA coaxial cables for module interconnection.