On Tue, Mar 17, 2009 at 9:37 AM, Johnathan Corgan < jcor...@corganenterprises.com> wrote:
> On Tue, Mar 17, 2009 at 5:26 AM, dbeken <dbe...@mytum.de> wrote: > > > last time I didn´t get a solution for my problem of interpolating and > > decimating using a sinusoidal signal. Now i went even easier. I connected > a > > DC Power Supply (with 0.01A max limit) to my LFRX daughterboard. The > USRP2 > > Source is only connected to a Scope Sink. But with 0.5 Voltage input, I > only > > see very small variations about the 0 line. The current is 0.01 A. So, > what > > can I do to see a signal? > > Make sure you don't have AC coupling turned on in your scope block. > > Johnathan > For receiving DC signals, you need to disable the DC offset removal which is automatically performed in the USRP. I am not sure if this happens in USRP2 as well, most likely it does. This thread has the discussion and how it was solved. http://lists.gnu.org/archive/html/discuss-gnuradio/2008-10/msg00465.html Karthik
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