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<p><div class="WordSection1"><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D;">Hi Matt,<o></o></span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D;">Looks like your WX FFT Sink is missing a newer feature present in the more recent version of GNU Radio – specifically the ability to click on the FFT and have a variable updated with the frequency of the bin you clicked in (which is weird because GRC generated the Python code with what I’m guessing is an old XML definition).<o></o></span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D;">I’d suggest updating your GNU Radio, or remove that callback attribute from the GRC file (either manually, or check in GRC itself). Worst case – comment out that line of Python. But then you will have to enter the tuning offset manually because you won’t be able to click-select any transmissions appearing on the FFT.<o></o></span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D;">Hope that narrows things down a little,<o></o></span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D;">Balint<o></o></span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D;"><o> </o></span></p><div style="border-left:solid blue 1.5pt;"><div><div style="border-top:solid #B5C4DF 1.0pt;"><p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;">From:</span></b><span lang="EN-US" style="font-size:10.0pt;"> op25-dev@yahoogroups.com [mailto:op25-dev@yahoogroups.com] <b>On Behalf Of </b>md123@nycap.rr.com<br><b>Sent:</b> Wednesday, 13 February 2013 1:32 PM<br><b>To:</b> op25-dev@yahoogroups.com<br><b>Cc:</b> Steve Glass<br><b>Subject:</b> Re: [op25-dev] error in gnu rc<o></o></span></p></div></div><p class="MsoNormal"><o> </o></p><p class="MsoNormal"> <o></o></p><div id="ygrp-mlmsg"><div id="ygrp-msg"><div id="ygrp-text"><p>nice. thanks Steve. that worked now the grc file runs. but when i run the file in get this error: AttributeError: 'gr_hier_block2_sptr' object has no attribute 'set_callbac. this is in the terminal part of the grc. here is the whole thing:<br><br>Executing: "/home/matt/op25_grc.py"<br><br>Imported legacy fsk4<br>Using Volk machine: ssse3_32<br>Traceback (most recent call last):<br>File "/home/matt/op25_grc.py", line 493, in <br>tb = op25_grc()<br>File "/home/matt/op25_grc.py", line 231, in __init__<br>self.wxgui_fftsink2_0_0.set_callback(wxgui_fftsink2_0_0_callback)<br>File "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/hier_block2.py", line 54, in __getattr__<br>return getattr(self._hb, name)<br>AttributeError: 'gr_hier_block2_sptr' object has no attribute 'set_callback'<br><br>thanks again. any help would be greatly appreciated. <br><br>---- Steve Glass <a href="mailto:stevie.glass%40gmail.com">stevie.glass@gmail.com</a>> wrote: <br>> Try changing the "type" field of your audio source from "Float" to<br>> "Complex".<br>> <br>> I am working on an update of op25 to use the new tools present in the<br>> latest GNURadio (cmake, grc support, new namespace rules, message passing,<br>> stream meta-information and so on) . I am particularly impressed by GRC as<br>> a means for building radios and want to see this side of our project<br>> improved because I think it allows non-programmers to build radios and play<br>> around more easily.<br>> <br>> ATB<br>> <br>> Steve<o></o></p></div><div><p class="MsoNormal"><span style="color:white;"><o></o></span></p></div></div></div></div></div></p>
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