Changes for page SDR

Last modified by Administrator on 10-03-2021, 11:01
From version < 34.1 >
edited by Jean-Yves Dupertuis
on 04-04-2018, 16:18
To version < 31.1 >
edited by Jean-Yves Dupertuis
on 27-03-2018, 21:22
< >
Change comment: GQRX-SDR

Summary

Details

Page properties
Content
... ... @@ -610,11 +610,6 @@
610 610  
611 611  == GNURadio ==
612 612  
613 -{{error}}
614 -Attention AVANT DE LANCER GNU COMPAGNON VOUS DEVEZ INSTALLER GQRX-SDR, SINON il vous manquera des bibliothèques !!!
615 -{{/error}}
616 -
617 -
618 618  En suivant l'excellent document qui se trouve :
619 619  http://f0fyf.blogspot.ch/2014/08/recepteur-fm-avec-gnuradio.html
620 620  je réalise mon premier programme SDR avec ma clef RTL-SDR.
... ... @@ -621,12 +621,6 @@
621 621  
622 622  [[testSDR.grc>>attach:testSDR.grc]]
623 623  
624 -{{error}}
625 -Sur une version linux , mon module "Options" n'avait pas la dimension de la page !?
626 -ecrivez : 1280, 1024
627 -{{/error}}
628 -
629 -
630 630  [[image:DJtestDaarioSDR.png||height="545" width="562"]]
631 631  
632 632  
testSDR-b.grc
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Dupertuis
Size
... ... @@ -1,1 +1,0 @@
1 -18.1 KB
Content
... ... @@ -1,932 +1,0 @@
1 -<?xml version='1.0' encoding='ASCII'?>
2 -<flow_graph>
3 - <timestamp>Wed Apr 4 10:10:57 2018</timestamp>
4 - <block>
5 - <key>variable</key>
6 - <param>
7 - <key>id</key>
8 - <value>samp_rate</value>
9 - </param>
10 - <param>
11 - <key>_enabled</key>
12 - <value>True</value>
13 - </param>
14 - <param>
15 - <key>value</key>
16 - <value>2e6</value>
17 - </param>
18 - <param>
19 - <key>_coordinate</key>
20 - <value>(176, 5)</value>
21 - </param>
22 - <param>
23 - <key>_rotation</key>
24 - <value>0</value>
25 - </param>
26 - </block>
27 - <block>
28 - <key>variable</key>
29 - <param>
30 - <key>id</key>
31 - <value>cutoff</value>
32 - </param>
33 - <param>
34 - <key>_enabled</key>
35 - <value>True</value>
36 - </param>
37 - <param>
38 - <key>value</key>
39 - <value>100e3</value>
40 - </param>
41 - <param>
42 - <key>_coordinate</key>
43 - <value>(494, 193)</value>
44 - </param>
45 - <param>
46 - <key>_rotation</key>
47 - <value>0</value>
48 - </param>
49 - </block>
50 - <block>
51 - <key>variable</key>
52 - <param>
53 - <key>id</key>
54 - <value>audio_dec</value>
55 - </param>
56 - <param>
57 - <key>_enabled</key>
58 - <value>True</value>
59 - </param>
60 - <param>
61 - <key>value</key>
62 - <value>10</value>
63 - </param>
64 - <param>
65 - <key>_coordinate</key>
66 - <value>(747, 226)</value>
67 - </param>
68 - <param>
69 - <key>_rotation</key>
70 - <value>0</value>
71 - </param>
72 - </block>
73 - <block>
74 - <key>variable</key>
75 - <param>
76 - <key>id</key>
77 - <value>quadrature</value>
78 - </param>
79 - <param>
80 - <key>_enabled</key>
81 - <value>True</value>
82 - </param>
83 - <param>
84 - <key>value</key>
85 - <value>500e3</value>
86 - </param>
87 - <param>
88 - <key>_coordinate</key>
89 - <value>(176, 69)</value>
90 - </param>
91 - <param>
92 - <key>_rotation</key>
93 - <value>0</value>
94 - </param>
95 - </block>
96 - <block>
97 - <key>rational_resampler_xxx</key>
98 - <param>
99 - <key>id</key>
100 - <value>rational_resampler_xxx_1</value>
101 - </param>
102 - <param>
103 - <key>_enabled</key>
104 - <value>True</value>
105 - </param>
106 - <param>
107 - <key>type</key>
108 - <value>fff</value>
109 - </param>
110 - <param>
111 - <key>interp</key>
112 - <value>48</value>
113 - </param>
114 - <param>
115 - <key>decim</key>
116 - <value>int(quadrature/1e3/audio_dec)</value>
117 - </param>
118 - <param>
119 - <key>taps</key>
120 - <value></value>
121 - </param>
122 - <param>
123 - <key>fbw</key>
124 - <value>0</value>
125 - </param>
126 - <param>
127 - <key>affinity</key>
128 - <value></value>
129 - </param>
130 - <param>
131 - <key>minoutbuf</key>
132 - <value>0</value>
133 - </param>
134 - <param>
135 - <key>maxoutbuf</key>
136 - <value>0</value>
137 - </param>
138 - <param>
139 - <key>_coordinate</key>
140 - <value>(312, 455)</value>
141 - </param>
142 - <param>
143 - <key>_rotation</key>
144 - <value>0</value>
145 - </param>
146 - </block>
147 - <block>
148 - <key>options</key>
149 - <param>
150 - <key>id</key>
151 - <value>DJTestRadioSDR</value>
152 - </param>
153 - <param>
154 - <key>_enabled</key>
155 - <value>True</value>
156 - </param>
157 - <param>
158 - <key>title</key>
159 - <value>Test Radion SDR</value>
160 - </param>
161 - <param>
162 - <key>author</key>
163 - <value>Jean-Yves HB9FOU</value>
164 - </param>
165 - <param>
166 - <key>description</key>
167 - <value></value>
168 - </param>
169 - <param>
170 - <key>window_size</key>
171 - <value>1280, 1024</value>
172 - </param>
173 - <param>
174 - <key>generate_options</key>
175 - <value>wx_gui</value>
176 - </param>
177 - <param>
178 - <key>category</key>
179 - <value>Custom</value>
180 - </param>
181 - <param>
182 - <key>run_options</key>
183 - <value>prompt</value>
184 - </param>
185 - <param>
186 - <key>run</key>
187 - <value>True</value>
188 - </param>
189 - <param>
190 - <key>max_nouts</key>
191 - <value>0</value>
192 - </param>
193 - <param>
194 - <key>realtime_scheduling</key>
195 - <value></value>
196 - </param>
197 - <param>
198 - <key>_coordinate</key>
199 - <value>(8, -1)</value>
200 - </param>
201 - <param>
202 - <key>_rotation</key>
203 - <value>0</value>
204 - </param>
205 - </block>
206 - <block>
207 - <key>analog_wfm_rcv</key>
208 - <param>
209 - <key>id</key>
210 - <value>analog_wfm_rcv_0</value>
211 - </param>
212 - <param>
213 - <key>_enabled</key>
214 - <value>True</value>
215 - </param>
216 - <param>
217 - <key>quad_rate</key>
218 - <value>quadrature</value>
219 - </param>
220 - <param>
221 - <key>audio_decimation</key>
222 - <value>audio_dec</value>
223 - </param>
224 - <param>
225 - <key>affinity</key>
226 - <value></value>
227 - </param>
228 - <param>
229 - <key>minoutbuf</key>
230 - <value>0</value>
231 - </param>
232 - <param>
233 - <key>maxoutbuf</key>
234 - <value>0</value>
235 - </param>
236 - <param>
237 - <key>_coordinate</key>
238 - <value>(734, 297)</value>
239 - </param>
240 - <param>
241 - <key>_rotation</key>
242 - <value>0</value>
243 - </param>
244 - </block>
245 - <block>
246 - <key>low_pass_filter</key>
247 - <param>
248 - <key>id</key>
249 - <value>low_pass_filter_0</value>
250 - </param>
251 - <param>
252 - <key>_enabled</key>
253 - <value>True</value>
254 - </param>
255 - <param>
256 - <key>type</key>
257 - <value>fir_filter_ccf</value>
258 - </param>
259 - <param>
260 - <key>decim</key>
261 - <value>1</value>
262 - </param>
263 - <param>
264 - <key>interp</key>
265 - <value>1</value>
266 - </param>
267 - <param>
268 - <key>gain</key>
269 - <value>1</value>
270 - </param>
271 - <param>
272 - <key>samp_rate</key>
273 - <value>samp_rate</value>
274 - </param>
275 - <param>
276 - <key>cutoff_freq</key>
277 - <value>cutoff</value>
278 - </param>
279 - <param>
280 - <key>width</key>
281 - <value>1e6</value>
282 - </param>
283 - <param>
284 - <key>win</key>
285 - <value>firdes.WIN_HAMMING</value>
286 - </param>
287 - <param>
288 - <key>beta</key>
289 - <value>6.76</value>
290 - </param>
291 - <param>
292 - <key>affinity</key>
293 - <value></value>
294 - </param>
295 - <param>
296 - <key>minoutbuf</key>
297 - <value>0</value>
298 - </param>
299 - <param>
300 - <key>maxoutbuf</key>
301 - <value>0</value>
302 - </param>
303 - <param>
304 - <key>_coordinate</key>
305 - <value>(489, 256)</value>
306 - </param>
307 - <param>
308 - <key>_rotation</key>
309 - <value>0</value>
310 - </param>
311 - </block>
312 - <block>
313 - <key>wxgui_waterfallsink2</key>
314 - <param>
315 - <key>id</key>
316 - <value>wxgui_waterfallsink2_0</value>
317 - </param>
318 - <param>
319 - <key>_enabled</key>
320 - <value>True</value>
321 - </param>
322 - <param>
323 - <key>type</key>
324 - <value>complex</value>
325 - </param>
326 - <param>
327 - <key>title</key>
328 - <value>Waterfall </value>
329 - </param>
330 - <param>
331 - <key>samp_rate</key>
332 - <value>samp_rate</value>
333 - </param>
334 - <param>
335 - <key>baseband_freq</key>
336 - <value>0</value>
337 - </param>
338 - <param>
339 - <key>dynamic_range</key>
340 - <value>100</value>
341 - </param>
342 - <param>
343 - <key>ref_level</key>
344 - <value>0</value>
345 - </param>
346 - <param>
347 - <key>ref_scale</key>
348 - <value>2.0</value>
349 - </param>
350 - <param>
351 - <key>fft_size</key>
352 - <value>512</value>
353 - </param>
354 - <param>
355 - <key>fft_rate</key>
356 - <value>15</value>
357 - </param>
358 - <param>
359 - <key>average</key>
360 - <value>False</value>
361 - </param>
362 - <param>
363 - <key>avg_alpha</key>
364 - <value>0</value>
365 - </param>
366 - <param>
367 - <key>win</key>
368 - <value>None</value>
369 - </param>
370 - <param>
371 - <key>win_size</key>
372 - <value></value>
373 - </param>
374 - <param>
375 - <key>grid_pos</key>
376 - <value></value>
377 - </param>
378 - <param>
379 - <key>notebook</key>
380 - <value></value>
381 - </param>
382 - <param>
383 - <key>freqvar</key>
384 - <value>None</value>
385 - </param>
386 - <param>
387 - <key>affinity</key>
388 - <value></value>
389 - </param>
390 - <param>
391 - <key>_coordinate</key>
392 - <value>(249, 586)</value>
393 - </param>
394 - <param>
395 - <key>_rotation</key>
396 - <value>0</value>
397 - </param>
398 - </block>
399 - <block>
400 - <key>rational_resampler_xxx</key>
401 - <param>
402 - <key>id</key>
403 - <value>rational_resampler_xxx_0</value>
404 - </param>
405 - <param>
406 - <key>_enabled</key>
407 - <value>True</value>
408 - </param>
409 - <param>
410 - <key>type</key>
411 - <value>ccc</value>
412 - </param>
413 - <param>
414 - <key>interp</key>
415 - <value>1</value>
416 - </param>
417 - <param>
418 - <key>decim</key>
419 - <value>int(samp_rate/quadrature)</value>
420 - </param>
421 - <param>
422 - <key>taps</key>
423 - <value></value>
424 - </param>
425 - <param>
426 - <key>fbw</key>
427 - <value>0</value>
428 - </param>
429 - <param>
430 - <key>affinity</key>
431 - <value></value>
432 - </param>
433 - <param>
434 - <key>minoutbuf</key>
435 - <value>0</value>
436 - </param>
437 - <param>
438 - <key>maxoutbuf</key>
439 - <value>0</value>
440 - </param>
441 - <param>
442 - <key>_coordinate</key>
443 - <value>(260, 287)</value>
444 - </param>
445 - <param>
446 - <key>_rotation</key>
447 - <value>0</value>
448 - </param>
449 - </block>
450 - <block>
451 - <key>audio_sink</key>
452 - <param>
453 - <key>id</key>
454 - <value>audio_sink_0</value>
455 - </param>
456 - <param>
457 - <key>_enabled</key>
458 - <value>True</value>
459 - </param>
460 - <param>
461 - <key>samp_rate</key>
462 - <value>48000</value>
463 - </param>
464 - <param>
465 - <key>device_name</key>
466 - <value></value>
467 - </param>
468 - <param>
469 - <key>ok_to_block</key>
470 - <value>True</value>
471 - </param>
472 - <param>
473 - <key>num_inputs</key>
474 - <value>1</value>
475 - </param>
476 - <param>
477 - <key>affinity</key>
478 - <value></value>
479 - </param>
480 - <param>
481 - <key>_coordinate</key>
482 - <value>(770, 476)</value>
483 - </param>
484 - <param>
485 - <key>_rotation</key>
486 - <value>0</value>
487 - </param>
488 - </block>
489 - <block>
490 - <key>blocks_multiply_const_vxx</key>
491 - <param>
492 - <key>id</key>
493 - <value>blocks_multiply_const_vxx_0</value>
494 - </param>
495 - <param>
496 - <key>_enabled</key>
497 - <value>True</value>
498 - </param>
499 - <param>
500 - <key>type</key>
501 - <value>float</value>
502 - </param>
503 - <param>
504 - <key>const</key>
505 - <value>Volume</value>
506 - </param>
507 - <param>
508 - <key>vlen</key>
509 - <value>1</value>
510 - </param>
511 - <param>
512 - <key>affinity</key>
513 - <value></value>
514 - </param>
515 - <param>
516 - <key>minoutbuf</key>
517 - <value>0</value>
518 - </param>
519 - <param>
520 - <key>maxoutbuf</key>
521 - <value>0</value>
522 - </param>
523 - <param>
524 - <key>_coordinate</key>
525 - <value>(535, 474)</value>
526 - </param>
527 - <param>
528 - <key>_rotation</key>
529 - <value>0</value>
530 - </param>
531 - </block>
532 - <block>
533 - <key>variable_slider</key>
534 - <param>
535 - <key>id</key>
536 - <value>Volume</value>
537 - </param>
538 - <param>
539 - <key>_enabled</key>
540 - <value>True</value>
541 - </param>
542 - <param>
543 - <key>label</key>
544 - <value>volume</value>
545 - </param>
546 - <param>
547 - <key>value</key>
548 - <value>1</value>
549 - </param>
550 - <param>
551 - <key>min</key>
552 - <value>0</value>
553 - </param>
554 - <param>
555 - <key>max</key>
556 - <value>100</value>
557 - </param>
558 - <param>
559 - <key>num_steps</key>
560 - <value>100</value>
561 - </param>
562 - <param>
563 - <key>style</key>
564 - <value>wx.SL_HORIZONTAL</value>
565 - </param>
566 - <param>
567 - <key>converver</key>
568 - <value>float_converter</value>
569 - </param>
570 - <param>
571 - <key>grid_pos</key>
572 - <value></value>
573 - </param>
574 - <param>
575 - <key>notebook</key>
576 - <value></value>
577 - </param>
578 - <param>
579 - <key>_coordinate</key>
580 - <value>(524, 539)</value>
581 - </param>
582 - <param>
583 - <key>_rotation</key>
584 - <value>0</value>
585 - </param>
586 - </block>
587 - <block>
588 - <key>rtlsdr_source</key>
589 - <param>
590 - <key>id</key>
591 - <value>rtlsdr_source_0</value>
592 - </param>
593 - <param>
594 - <key>_enabled</key>
595 - <value>True</value>
596 - </param>
597 - <param>
598 - <key>type</key>
599 - <value>fc32</value>
600 - </param>
601 - <param>
602 - <key>args</key>
603 - <value></value>
604 - </param>
605 - <param>
606 - <key>nchan</key>
607 - <value>1</value>
608 - </param>
609 - <param>
610 - <key>sample_rate</key>
611 - <value>samp_rate</value>
612 - </param>
613 - <param>
614 - <key>freq0</key>
615 - <value>freq*1e6</value>
616 - </param>
617 - <param>
618 - <key>corr0</key>
619 - <value>-30</value>
620 - </param>
621 - <param>
622 - <key>dc_offset_mode0</key>
623 - <value>0</value>
624 - </param>
625 - <param>
626 - <key>iq_balance_mode0</key>
627 - <value>0</value>
628 - </param>
629 - <param>
630 - <key>gain_mode0</key>
631 - <value>True</value>
632 - </param>
633 - <param>
634 - <key>gain0</key>
635 - <value>50</value>
636 - </param>
637 - <param>
638 - <key>if_gain0</key>
639 - <value>30</value>
640 - </param>
641 - <param>
642 - <key>bb_gain0</key>
643 - <value>20</value>
644 - </param>
645 - <param>
646 - <key>ant0</key>
647 - <value>1</value>
648 - </param>
649 - <param>
650 - <key>bw0</key>
651 - <value>0</value>
652 - </param>
653 - <param>
654 - <key>freq1</key>
655 - <value>100e6</value>
656 - </param>
657 - <param>
658 - <key>corr1</key>
659 - <value>0</value>
660 - </param>
661 - <param>
662 - <key>dc_offset_mode1</key>
663 - <value>0</value>
664 - </param>
665 - <param>
666 - <key>iq_balance_mode1</key>
667 - <value>0</value>
668 - </param>
669 - <param>
670 - <key>gain_mode1</key>
671 - <value>False</value>
672 - </param>
673 - <param>
674 - <key>gain1</key>
675 - <value>10</value>
676 - </param>
677 - <param>
678 - <key>if_gain1</key>
679 - <value>20</value>
680 - </param>
681 - <param>
682 - <key>bb_gain1</key>
683 - <value>20</value>
684 - </param>
685 - <param>
686 - <key>ant1</key>
687 - <value></value>
688 - </param>
689 - <param>
690 - <key>bw1</key>
691 - <value>0</value>
692 - </param>
693 - <param>
694 - <key>freq2</key>
695 - <value>100e6</value>
696 - </param>
697 - <param>
698 - <key>corr2</key>
699 - <value>0</value>
700 - </param>
701 - <param>
702 - <key>dc_offset_mode2</key>
703 - <value>0</value>
704 - </param>
705 - <param>
706 - <key>iq_balance_mode2</key>
707 - <value>0</value>
708 - </param>
709 - <param>
710 - <key>gain_mode2</key>
711 - <value>False</value>
712 - </param>
713 - <param>
714 - <key>gain2</key>
715 - <value>10</value>
716 - </param>
717 - <param>
718 - <key>if_gain2</key>
719 - <value>20</value>
720 - </param>
721 - <param>
722 - <key>bb_gain2</key>
723 - <value>20</value>
724 - </param>
725 - <param>
726 - <key>ant2</key>
727 - <value></value>
728 - </param>
729 - <param>
730 - <key>bw2</key>
731 - <value>0</value>
732 - </param>
733 - <param>
734 - <key>freq3</key>
735 - <value>100e6</value>
736 - </param>
737 - <param>
738 - <key>corr3</key>
739 - <value>0</value>
740 - </param>
741 - <param>
742 - <key>dc_offset_mode3</key>
743 - <value>0</value>
744 - </param>
745 - <param>
746 - <key>iq_balance_mode3</key>
747 - <value>0</value>
748 - </param>
749 - <param>
750 - <key>gain_mode3</key>
751 - <value>False</value>
752 - </param>
753 - <param>
754 - <key>gain3</key>
755 - <value>10</value>
756 - </param>
757 - <param>
758 - <key>if_gain3</key>
759 - <value>20</value>
760 - </param>
761 - <param>
762 - <key>bb_gain3</key>
763 - <value>20</value>
764 - </param>
765 - <param>
766 - <key>ant3</key>
767 - <value></value>
768 - </param>
769 - <param>
770 - <key>bw3</key>
771 - <value>0</value>
772 - </param>
773 - <param>
774 - <key>freq4</key>
775 - <value>100e6</value>
776 - </param>
777 - <param>
778 - <key>corr4</key>
779 - <value>0</value>
780 - </param>
781 - <param>
782 - <key>dc_offset_mode4</key>
783 - <value>0</value>
784 - </param>
785 - <param>
786 - <key>iq_balance_mode4</key>
787 - <value>0</value>
788 - </param>
789 - <param>
790 - <key>gain_mode4</key>
791 - <value>False</value>
792 - </param>
793 - <param>
794 - <key>gain4</key>
795 - <value>10</value>
796 - </param>
797 - <param>
798 - <key>if_gain4</key>
799 - <value>20</value>
800 - </param>
801 - <param>
802 - <key>bb_gain4</key>
803 - <value>20</value>
804 - </param>
805 - <param>
806 - <key>ant4</key>
807 - <value></value>
808 - </param>
809 - <param>
810 - <key>bw4</key>
811 - <value>0</value>
812 - </param>
813 - <param>
814 - <key>affinity</key>
815 - <value></value>
816 - </param>
817 - <param>
818 - <key>minoutbuf</key>
819 - <value>0</value>
820 - </param>
821 - <param>
822 - <key>maxoutbuf</key>
823 - <value>0</value>
824 - </param>
825 - <param>
826 - <key>_coordinate</key>
827 - <value>(0, 237)</value>
828 - </param>
829 - <param>
830 - <key>_rotation</key>
831 - <value>0</value>
832 - </param>
833 - </block>
834 - <block>
835 - <key>variable_slider</key>
836 - <param>
837 - <key>id</key>
838 - <value>freq</value>
839 - </param>
840 - <param>
841 - <key>_enabled</key>
842 - <value>True</value>
843 - </param>
844 - <param>
845 - <key>label</key>
846 - <value>Frequence RTN</value>
847 - </param>
848 - <param>
849 - <key>value</key>
850 - <value>98.2</value>
851 - </param>
852 - <param>
853 - <key>min</key>
854 - <value>88</value>
855 - </param>
856 - <param>
857 - <key>max</key>
858 - <value>108</value>
859 - </param>
860 - <param>
861 - <key>num_steps</key>
862 - <value>100</value>
863 - </param>
864 - <param>
865 - <key>style</key>
866 - <value>wx.SL_HORIZONTAL</value>
867 - </param>
868 - <param>
869 - <key>converver</key>
870 - <value>float_converter</value>
871 - </param>
872 - <param>
873 - <key>grid_pos</key>
874 - <value></value>
875 - </param>
876 - <param>
877 - <key>notebook</key>
878 - <value></value>
879 - </param>
880 - <param>
881 - <key>_coordinate</key>
882 - <value>(4, 460)</value>
883 - </param>
884 - <param>
885 - <key>_rotation</key>
886 - <value>0</value>
887 - </param>
888 - </block>
889 - <connection>
890 - <source_block_id>analog_wfm_rcv_0</source_block_id>
891 - <sink_block_id>rational_resampler_xxx_1</sink_block_id>
892 - <source_key>0</source_key>
893 - <sink_key>0</sink_key>
894 - </connection>
895 - <connection>
896 - <source_block_id>blocks_multiply_const_vxx_0</source_block_id>
897 - <sink_block_id>audio_sink_0</sink_block_id>
898 - <source_key>0</source_key>
899 - <sink_key>0</sink_key>
900 - </connection>
901 - <connection>
902 - <source_block_id>low_pass_filter_0</source_block_id>
903 - <sink_block_id>analog_wfm_rcv_0</sink_block_id>
904 - <source_key>0</source_key>
905 - <sink_key>0</sink_key>
906 - </connection>
907 - <connection>
908 - <source_block_id>rational_resampler_xxx_0</source_block_id>
909 - <sink_block_id>low_pass_filter_0</sink_block_id>
910 - <source_key>0</source_key>
911 - <sink_key>0</sink_key>
912 - </connection>
913 - <connection>
914 - <source_block_id>rational_resampler_xxx_1</source_block_id>
915 - <sink_block_id>blocks_multiply_const_vxx_0</sink_block_id>
916 - <source_key>0</source_key>
917 - <sink_key>0</sink_key>
918 - </connection>
919 - <connection>
920 - <source_block_id>rtlsdr_source_0</source_block_id>
921 - <sink_block_id>rational_resampler_xxx_0</sink_block_id>
922 - <source_key>0</source_key>
923 - <sink_key>0</sink_key>
924 - </connection>
925 - <connection>
926 - <source_block_id>rtlsdr_source_0</source_block_id>
927 - <sink_block_id>wxgui_waterfallsink2_0</sink_block_id>
928 - <source_key>0</source_key>
929 - <sink_key>0</sink_key>
930 - </connection>
931 -</flow_graph>
932 -