SI 5351 initially worked incorrectly with the TCXO module - the reception and transmission frequencies differed unacceptably (F TX about 13 MHz). After installing the quartz back, the situation improved somewhat. After soldering the leads and warming up, SI 5351 returned to normal for a short time. Most likely, the problem is in it.
Vlad
I haven’t heard about any issues with the SI5351.
The only times I’ve had issues with incorrect frequency is when I’ve forgotten to change the reference frequency value in the menu. I’ve fallen in to that trap a couple of times now and had to do a full RX realignment!
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