Thanks, This means when I send a complex signal I see it on spectrum, I
too send a converted signal and I see a converted signal on the spectrum.
Signals are not the same... I expect that signals in two formats (format
int16 or float 32 ) be the same on a spectrum.
I only have a signal in two formats...
The fact that your signal is all zeros seems to be a problem with
your signal; have you maybe scaled it incorrectly, so that it
(correctly) gets rounded to all 0?
Can you explain how should I scale a float signal according to a block
in Gnuradio?
I don't know what "don't acceptable" would mean in this context. The
USRP
accepts any int16.
The fact that your signal is all zeros seems to be a problem
with your signal; have you maybe scaled it incorrectly, so that
it (correctly) gets rounded to all 0?