The PXI-1420 MW Downconverter Module is a PXI 3U, 1-slot downconverter module that, in conjunction with Local Oscillator Module PXI-1450B, converts microwave signals within the 2.75 to 26.5 GHz frequency range into baseband intermediate frequency (IF) signals to drive today’s newest generation of digitizers.

The PXI-1420 MW Downconverter Module is intended for use in applications such as synthetic instrumentation, microwave receivers, signal intelligence, and anywhere a microwave signal needs to be down converted to a baseband frequency for data capture, analysis, and measurement. When combined with a companion high-speed digitizer (> 1 Gs/s) and user-provided software (e.g., LabVIEW®), the PXI-1420 provides a total measurement solution in support of microwave test and measurement applications.

Description Specification
RF Frequency Range 2.75 to 26.5 GHz
IF Output 250 ±175 MHz
Aux. Input / Output Range 100 kHz to 425 MHz
LO Frequency Range 3 to 9 GHz




Operation Manual

Letter of Volatility


Ordering Information

As of January 2021, all purchase orders for Phase Matrix products must reference NI part numbers and must be submitted to NI Corp or its distribution partners. Please contact your local NI office for purchasing instructions and options.

Model PXI-1420 MW Downconverter
Options None 
Accessories None
Related Products PXI-1410, PXI-1430B, PXI-1440B, PXI-1450B


The NI and PMI part numbers listed below are for the same product. No changes were made to the products.


NI Part Number 781782-01 PMI 1420 2.7 GHZ -26.5 GHZ DOWNCONVERTER

Servicing Information►

When requiring service for your PMI product through NI, please reference your serial number and the following module part number:

NI Module Part Number Description



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Phase Matrix warrants its products to be free from defects in material and workmanship for one year from the date of delivery. Damage due to accident, abuse, or improper signal level is not covered by the warranty. Removal, defacement, or alteration of any serial number, inspection label, marking or seal may void the warranty. Phase Matrix will repair or replace, at its option, any components of this product that prove to be defective during the warranty period provided that the entire unit is returned freight prepaid to Phase Matrix, Inc. or an authorized service facility. In-warranty units will be returned freight prepaid; out-of-warranty units will be returned freight COLLECT. No warranty other than the above is expressed or implied.