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[Discuss-gnuradio] usrp2 tune two different frequencies

From: ematlis
Subject: [Discuss-gnuradio] usrp2 tune two different frequencies
Date: Mon, 20 Apr 2009 10:33:18 -0400 (EDT)
User-agent: Alpine 2.00 (LFD 1167 2008-08-23)

Hi all-

is it possible to tune the USRP2 to two different frequencies? I can do this with the USRP1 and a LFRX daughterboard using usrp.tune twice:

# Ch 0
r = usrp.tune(self.u, 0, self.subdev[0], target_freq1)

# Ch 1
r = usrp.tune(self.u, 1, self.subdev[1], target_freq2)

to tune each DDC to a separate frequency. However, it's not clear to me how to do this with the USRP2 since in the examples I saw there is no explicit mention of which subdevice is being tuned:

r = self.u.set_center_freq(target_freq1)

thanks for any suggestions.


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