Re: [Discuss-gnuradio] signal level

[Activecat]

On Thu, Jun 5, 2014 at 4:09 PM, Marcus Müller <address@hidden> wrote:

Hi Ali,
>power is very less...
Of course, since power is proportional to amplitude squared.
Obviously, if you try to drive an DAC with more than it's maximum amplitude, you will get clipping.
This is a nonlinear thing and has very bad effects on your spectrum, and that's why you usually avoid it.

Dear Sirs,

There is a parameter "Ch0: Gain(dB)" on both UHD Source and UHD Sink.

Does this gain apply before or after the ADC?

Meanwhile depends on daughtercards, sometime there are some built-in "auto-gain" mechanism, is this correct?