[Discuss-gnuradio] replica outband

Hi all,
I'm transmitting my signal with 5Mhz bandwidth with a carrier of 70Mhz,
analyzing output spectrum I see some "replicas" outside the bandwidth
(see attached image).
I'm using a WBX, will the uhd::usrp::multi_usrp::set_tx_bandwidth remove those
replicas? I don't see any filter after the I/Q modulator (ADL5386).

Is this intended ?

Regards

--
cpp-today.blogspot.com