It´s exhausting explaining this over and over again....
viewtopic.php?p=2090#p2090
Everyone seems to figure out, there´s a difference, but noone seems to read why.
And I´m repeating myself again as response to all the other suggestions:
The first thing I did was checking if the OnBoard measurement was accurate. It was in my case.
All caps have been exchanged
All Toroids have been exchanged
Relay has been exchanged
FETs have been exchanged
SMA Connector has been exchanged
In the Last Step even the Ferrite Toroids (Black ones) have been exchanged
None of those actions increased efficiency.
So what´s left here ?
And yes, If I use the *Rxxxx* Mainboard with another RF Board, it works in the 80% PLus Efficiency Region.
Please read the whole thread before posting so we do not need to repeat and repeat and repeat.
I don´t think *Rxxxx* sells bad things on purpose. As far as I know they don´t deliver at the moment.
For obvious reasons they did not get approval, and right now we´re in an ongoing investigation why. But I am out of ideas and spent already too much time and money to consider continuing. (Remember: I do this for free in my free time, I am not involved in any sales while others benefit from my work and money) Now others have to chime in, especially *Rxxxx* would benefit most to investigate this in depth. I assume they do.
73 Manuel; DL2MAN