I too am having an issue with GRC or gnu radio... You see, version 0.60 could not transmit on side B because I was doing this: u.tune(0, subdev, freq), but the txrx could receive on side B.
In version 0.65 I switched the code to u.tune(subdev._which, subdev, freq). Now the A/B transmit works. Just today, I discovered that the tvrx on side B will send out "peculiar" signals until I change the subdev._which back to zero. So I am not sure if this is a bug, a feature, or If am tuning this wrong. I am using USRP rev3 and month-recent version of the trunk. How do I tune the USRP for receiving on side A? How do I tune the USRP for receiving on side B? How do I tune the USRP for transmitting on side A? How do I tune the USRP for transmitting on side B? -Josh On 4/27/07, Anastasopoulos Achilleas <[EMAIL PROTECTED]> wrote:
Hi, I am running a simple graph in GRC-0.65 with complex USRP as source (with TVRX at the B side) and a complex FFT as a sink. What I see is not expected: I see the FFT of a real signal (symmetric around 0). When I run the python example usrp_fft.py I get the expected result. ./usrp_fft.py -RB -f 93.1e6 -d 16 I attach the grc graph for anyone who wants to take a look at it and give me some hint as to what I might be doing wrong. Thanks Achilleas
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