Hello GNUR's! I am currently working with a SDR dongle which I want to lock at four different frequencies to see four consecutive parts of the spectrum. I have to do so because the sampling rate is not enough (2.4 MHz) to see at one glance the bandwidth I need (8 MHz). To achieve so I am multiplexing the values I want to lock my dongle to but I am getting some errors using the pair of blocks "Probe Signal" and "Function Probe" (see the flowgraph in [1] and errors trace [2]). By enabling/disabling some blocks I have guessed that the error about the overflow is caused by the WX GUI Number Sink, while the error of the non-existing attribute appears when I make use of the "variable" defined by the block Function Probe.
Of course I have followed the tutorial [3] and still couldn't make it to work. Thank you very much in advance. Greetings, Alejandro [1] http://imagizer.imageshack.us/a/img673/6338/mw0don.png [2] http://pastebin.com/Kmxyw250 [3] https://gnuradio.org/redmine/projects/gnuradio/wiki/Guided_Tutorial_GRC/61#241-Examining-the-Probe-Signal-Block
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