[Discuss-gnuradio] Wire format: using 8-bit (sc8) vs using 16-bit (sc16) resolution to gnu radio

[Nick Kara]

Hi, i am using usrp N200 and i set to gnu radio the wire format as either 16-bit -> sc16

or 8-bit ->sc8 and host format fc32(complex float) when i use

a) sc16 the power in the window where i see the spectrum is at -110 dB or -100 dB, without transmitter sending data (so i see only noise)

b) sc8 the power in the window where i see the spectrum is at -80 db, without transmitter sending data (so i see only noise as before) 

Any ideas why i have a bigger starting power in 8-bit? It is -80 dB again -110 dB.

Thanks