I have tried that, but I see 2 issues (but perhaps I'm wrong) : - I need 25 Mhz of BW so if I want to push the LO outside, I need to have a sample rate of 50 MHz --> difficult to have Tx / Rx loopback. - I have tried to set the master clock rate at 60 MHz, the DDC offset at 25 MHz, and a sample rate at 25 MHz. I thought that it could work but I have a cutoff frequency at 12.5 MHz ...
David Le dim. 26 juil. 2020 à 20:49, Marcus D. Leech <patchvonbr...@gmail.com> a écrit : > On 07/26/2020 02:36 PM, David Carsenat wrote: > > What a fast response ! Many thanks. But what do you mean by offset > > tuning ? > > > > For example at a time, I can have a signal at F0rx and at another time > > at F0rx + df. Always with some Signal at F0rx. The RX DC offset > > correction will disturb the Signal for the second example. > > The signal can hop. > You can have the hardware offset the LO by some suitable amount, so that > the LO actually sits at the edge of your bandwidth, for example. > > See the two-step tuning process here: > > https://files.ettus.com/manual/page_general.html > > >
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