Re: [Discuss-gnuradio] offset at input of LF_RX

[ematlis]

On Thu, 21 Jun 2007, Matt Ettus wrote:

> > > > Oddly enough, usrp_oscope.py doesn't show any DC bias whatsoever,
> > > > regardless of what offset I put into the function generator.  Maybe
> > > > it's removed inside the flow-graph?
> > >
> > > DC offset is automatically removed in hardware, but you can turn that
> > > feature off.
> > Can you explain that in more detail, please?  Do you have a capacitor
> > is series with the signal flow to remove any dc?
>
> It is done digitally.

If there is no dc-removing capacitor in the circuitry , then should I not 
expect that for a board using a single (positive) supply, that the signal 
is always above zero?


> Matt

thanks,
eric