We have worked a lot with MRFE6VS25GN to get it working on 1296 MHz.
We havent any good luck with that.
Can You support with info, application or how to solve the problem.
Please give me feedback as soon as possible, thanks
Unfortunately, we do not have a design reference for 1296 MHz but you can refer to the reference designs we have available https://www.nxp.com/design/development-boards/rf-circuit-collection:RF-CIRCUIT-COLLECTION.
For MRFE6VS25GN please check: 960-1215 MHz Reference Circuit Design Files.