Well, that was a waste of several
hours of my life.
Tried using one of the SPF5189 devices into
first a ADL5350 mixer and then a Anaren dbl bal
mixer 2.5 to 10Ghz, using the ADF osc as the lo.
I can see 5.760 from the sig gen on the
SDRConsole with RSP2 but could not see OHM in
B'ham but I was only using an LPA on its own.
I see ebay has some similar boards marked as
upto 6ghz but does not state device, probably
the same as above with a different printed
cover! At £6.68 guess a punt will not kill me.
Whilst all the stuff was out re-tried these
supposed 1W amps for 2.4, RF2126 devices, what a
croc. Best was 150mw o/p at 2.4 which rose to
300mw at 2.3, obviously, the matching etc is not
right I guess. Pity, its a nice pcb but I guess
I win a nice heatsink though.
So, back to the drawing board.