[Discuss-gnuradio] USRP1+external VUHF Tuner and C++ Interface

[Luca Pascale]

Hi all,

I am trying to use USRP1 with an external Tuner using the C++ USRP interface
example founded on the wiki.
The Tuner have a 16 MHz BW centered at 21.4MHz IF.
I have connected it (passing through a passband filter centered @21.4M and
16M wide) to USRP using the BasicRX daughterboard. I have some doubt about
this setup.

A) Do I need to control in someway (by a "driver") the doughterboard?

B) How should I have to set the DDC freq ( set_rx_freq() ) to get correctly
the signals around the 21.4M IF ?
  
Thanks in advance,

LUCA
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