Signal Decay with USRP N210 Using BasicRX

So I’ve been doing some development and my USRP using a custom RF front
end
via the BasicRX daughter board and have noticed an RC decay. I thought
this
was my system, but I recently just put a signal generator directly into
the
USRP and noticed the same thing (although not as high of a time
constant).
My high frequencies are passing through fine (sharp transitions are
present), but when a level is held at a positive or negative voltage, it
decays to zero.

Is there a limitation on the USRP or BasicRX card? Or something else I’m
missing?

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On 09/21/2011 12:18 PM, valentac wrote:

missing?
Yes, the basic boards cannot pass DC (and low frequency). You will want
an LFRX for that. -josh

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