I'm looking at LO options for Transverter to take 1296 MHz up to 5760 MHz. The LO would nominally be 5760-1296=4464 MHz.
I'm considering trying Analog Devices ADF4350 which has max spec at 4400 MHz. Have you seen any discussion of actual ceiling frequency?
As this is for ham use, it need not meet all specs (at all temperatures), but should generally lock.
I'd like to avoid the MAX2870/2871 which are rated to ~6 GHz, but is more costly (I have a few ADF4350 from years-gone-by, so would like to start there first.)
Grateful for any advice or general comments,
Dave