Hi Jan,
> Thanks for your reply. You ask if RX level that MAP65 shows is close to 0,
> no it is not. It is very high, about 65 dB.
>
> Is this the problem?
Well, it is certainly *a* problem. Hard to say, yet,
whether it's *the* problem.
I suspect it means that you have not chosen a fixed-point
FFT for the second FFT. Off the top of my head, I forget
the version numbers that Leif uses here; but whatever
version you are now using -- I think probably a
floating-point one -- change to another.
When I'm home again I will check the FFT versions I'm
actually using.
-- Joe