Try reducing the baseband signal magnitude and RF gain—does that reduce the 
unwanted harmonic content?

What offset value are you using? I typically use a value that is a bit more 
than half my application bandwidth.

Some Amount of unwanted mixing and distortion products are *inevitable* with 
any general purpose transmit chain, and the usual strategy in purpose-built 
radios is the use of output filters. 

Sent from my iPhone

> On Dec 2, 2020, at 1:48 PM, Carlo Venier via USRP-users 
> <usrp-users@lists.ettus.com> wrote:
> 
> 
> Hi,
> 
> I have a few questions regarding tx_waveforms script. 
> I'm using an USRP B200mini.
> 
> How can I delete (or reduce) the DC component when using tx_waveform?
> 
> When I set --freq=f0, specifying --lo_offset=(df0), how do I remove (or 
> reduce) the mirrored replica at (f0+2*f0) that is generated? Do you have any 
> advice to suggest? 
> 
> Thank you in advance, 
> 
> Carlo
> 
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> USRP-users@lists.ettus.com
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