git.gag.com Git - debian/gnuradio/blob - gnuradio-examples/grc/demod/pam_timing.grc

   1 <?xml version='1.0' encoding='ASCII'?>
   2 <flow_graph>
   3   <timestamp>Tue Oct  6 18:00:19 2009</timestamp>
   4   <block>
   5     <key>options</key>
   6     <param>
   7       <key>id</key>
   8       <value>top_block</value>
   9     </param>
  10     <param>
  11       <key>_enabled</key>
  12       <value>True</value>
  13     </param>
  14     <param>
  15       <key>title</key>
  16       <value></value>
  17     </param>
  18     <param>
  19       <key>author</key>
  20       <value></value>
  21     </param>
  22     <param>
  23       <key>description</key>
  24       <value></value>
  25     </param>
  26     <param>
  27       <key>window_size</key>
  28       <value>1280, 1024</value>
  29     </param>
  30     <param>
  31       <key>generate_options</key>
  32       <value>wx_gui</value>
  33     </param>
  34     <param>
  35       <key>category</key>
  36       <value>Custom</value>
  37     </param>
  38     <param>
  39       <key>run_options</key>
  40       <value>prompt</value>
  41     </param>
  42     <param>
  43       <key>run</key>
  44       <value>True</value>
  45     </param>
  46     <param>
  47       <key>realtime_scheduling</key>
  48       <value></value>
  49     </param>
  50     <param>
  51       <key>_coordinate</key>
  52       <value>(10, 10)</value>
  53     </param>
  54     <param>
  55       <key>_rotation</key>
  56       <value>0</value>
  57     </param>
  58   </block>
  59   <block>
  60     <key>random_source_x</key>
  61     <param>
  62       <key>id</key>
  63       <value>random_source_x_0</value>
  64     </param>
  65     <param>
  66       <key>_enabled</key>
  67       <value>True</value>
  68     </param>
  69     <param>
  70       <key>type</key>
  71       <value>byte</value>
  72     </param>
  73     <param>
  74       <key>min</key>
  75       <value>0</value>
  76     </param>
  77     <param>
  78       <key>max</key>
  79       <value>2</value>
  80     </param>
  81     <param>
  82       <key>num_samps</key>
  83       <value>1000</value>
  84     </param>
  85     <param>
  86       <key>repeat</key>
  87       <value>True</value>
  88     </param>
  89     <param>
  90       <key>_coordinate</key>
  91       <value>(13, 80)</value>
  92     </param>
  93     <param>
  94       <key>_rotation</key>
  95       <value>0</value>
  96     </param>
  97   </block>
  98   <block>
  99     <key>const_source_x</key>
 100     <param>
 101       <key>id</key>
 102       <value>const_source_x_0</value>
 103     </param>
 104     <param>
 105       <key>_enabled</key>
 106       <value>True</value>
 107     </param>
 108     <param>
 109       <key>type</key>
 110       <value>float</value>
 111     </param>
 112     <param>
 113       <key>const</key>
 114       <value>-0.5</value>
 115     </param>
 116     <param>
 117       <key>_coordinate</key>
 118       <value>(179, 160)</value>
 119     </param>
 120     <param>
 121       <key>_rotation</key>
 122       <value>0</value>
 123     </param>
 124   </block>
 125   <block>
 126     <key>variable_slider</key>
 127     <param>
 128       <key>id</key>
 129       <value>noise_amp</value>
 130     </param>
 131     <param>
 132       <key>_enabled</key>
 133       <value>True</value>
 134     </param>
 135     <param>
 136       <key>label</key>
 137       <value>noise_amp</value>
 138     </param>
 139     <param>
 140       <key>value</key>
 141       <value>0</value>
 142     </param>
 143     <param>
 144       <key>min</key>
 145       <value>0</value>
 146     </param>
 147     <param>
 148       <key>max</key>
 149       <value>1.0</value>
 150     </param>
 151     <param>
 152       <key>num_steps</key>
 153       <value>1000</value>
 154     </param>
 155     <param>
 156       <key>style</key>
 157       <value>wx.SL_HORIZONTAL</value>
 158     </param>
 159     <param>
 160       <key>converver</key>
 161       <value>float_converter</value>
 162     </param>
 163     <param>
 164       <key>grid_pos</key>
 165       <value></value>
 166     </param>
 167     <param>
 168       <key>notebook</key>
 169       <value></value>
 170     </param>
 171     <param>
 172       <key>_coordinate</key>
 173       <value>(600, -1)</value>
 174     </param>
 175     <param>
 176       <key>_rotation</key>
 177       <value>0</value>
 178     </param>
 179   </block>
 180   <block>
 181     <key>gr_noise_source_x</key>
 182     <param>
 183       <key>id</key>
 184       <value>gr_noise_source_x_0</value>
 185     </param>
 186     <param>
 187       <key>_enabled</key>
 188       <value>True</value>
 189     </param>
 190     <param>
 191       <key>type</key>
 192       <value>float</value>
 193     </param>
 194     <param>
 195       <key>noise_type</key>
 196       <value>gr.GR_GAUSSIAN</value>
 197     </param>
 198     <param>
 199       <key>amp</key>
 200       <value>noise_amp</value>
 201     </param>
 202     <param>
 203       <key>seed</key>
 204       <value>42</value>
 205     </param>
 206     <param>
 207       <key>_coordinate</key>
 208       <value>(45, 497)</value>
 209     </param>
 210     <param>
 211       <key>_rotation</key>
 212       <value>0</value>
 213     </param>
 214   </block>
 215   <block>
 216     <key>root_raised_cosine_filter</key>
 217     <param>
 218       <key>id</key>
 219       <value>root_raised_cosine_filter_0</value>
 220     </param>
 221     <param>
 222       <key>_enabled</key>
 223       <value>True</value>
 224     </param>
 225     <param>
 226       <key>type</key>
 227       <value>interp_fir_filter_fff</value>
 228     </param>
 229     <param>
 230       <key>decim</key>
 231       <value>1</value>
 232     </param>
 233     <param>
 234       <key>interp</key>
 235       <value>spb</value>
 236     </param>
 237     <param>
 238       <key>gain</key>
 239       <value>2*spb</value>
 240     </param>
 241     <param>
 242       <key>samp_rate</key>
 243       <value>1.0</value>
 244     </param>
 245     <param>
 246       <key>sym_rate</key>
 247       <value>1./spb</value>
 248     </param>
 249     <param>
 250       <key>alpha</key>
 251       <value>0.35</value>
 252     </param>
 253     <param>
 254       <key>ntaps</key>
 255       <value>11*spb</value>
 256     </param>
 257     <param>
 258       <key>_coordinate</key>
 259       <value>(50, 295)</value>
 260     </param>
 261     <param>
 262       <key>_rotation</key>
 263       <value>0</value>
 264     </param>
 265   </block>
 266   <block>
 267     <key>gr_add_xx</key>
 268     <param>
 269       <key>id</key>
 270       <value>gr_add_xx_0_0</value>
 271     </param>
 272     <param>
 273       <key>_enabled</key>
 274       <value>True</value>
 275     </param>
 276     <param>
 277       <key>type</key>
 278       <value>float</value>
 279     </param>
 280     <param>
 281       <key>num_inputs</key>
 282       <value>2</value>
 283     </param>
 284     <param>
 285       <key>vlen</key>
 286       <value>1</value>
 287     </param>
 288     <param>
 289       <key>_coordinate</key>
 290       <value>(375, 390)</value>
 291     </param>
 292     <param>
 293       <key>_rotation</key>
 294       <value>0</value>
 295     </param>
 296   </block>
 297   <block>
 298     <key>const_source_x</key>
 299     <param>
 300       <key>id</key>
 301       <value>const_source_x_1</value>
 302     </param>
 303     <param>
 304       <key>_enabled</key>
 305       <value>True</value>
 306     </param>
 307     <param>
 308       <key>type</key>
 309       <value>float</value>
 310     </param>
 311     <param>
 312       <key>const</key>
 313       <value>0</value>
 314     </param>
 315     <param>
 316       <key>_coordinate</key>
 317       <value>(36, 723)</value>
 318     </param>
 319     <param>
 320       <key>_rotation</key>
 321       <value>0</value>
 322     </param>
 323   </block>
 324   <block>
 325     <key>variable</key>
 326     <param>
 327       <key>id</key>
 328       <value>spb</value>
 329     </param>
 330     <param>
 331       <key>_enabled</key>
 332       <value>True</value>
 333     </param>
 334     <param>
 335       <key>value</key>
 336       <value>4</value>
 337     </param>
 338     <param>
 339       <key>_coordinate</key>
 340       <value>(34, 915)</value>
 341     </param>
 342     <param>
 343       <key>_rotation</key>
 344       <value>0</value>
 345     </param>
 346   </block>
 347   <block>
 348     <key>variable</key>
 349     <param>
 350       <key>id</key>
 351       <value>nfilts</value>
 352     </param>
 353     <param>
 354       <key>_enabled</key>
 355       <value>True</value>
 356     </param>
 357     <param>
 358       <key>value</key>
 359       <value>32</value>
 360     </param>
 361     <param>
 362       <key>_coordinate</key>
 363       <value>(31, 828)</value>
 364     </param>
 365     <param>
 366       <key>_rotation</key>
 367       <value>0</value>
 368     </param>
 369   </block>
 370   <block>
 371     <key>variable</key>
 372     <param>
 373       <key>id</key>
 374       <value>rrctaps</value>
 375     </param>
 376     <param>
 377       <key>_enabled</key>
 378       <value>True</value>
 379     </param>
 380     <param>
 381       <key>value</key>
 382       <value>firdes.root_raised_cosine(nfilts,1.0,0.25/nfilts, .35, 11*spb*nfilts)</value>
 383     </param>
 384     <param>
 385       <key>_coordinate</key>
 386       <value>(180, 935)</value>
 387     </param>
 388     <param>
 389       <key>_rotation</key>
 390       <value>0</value>
 391     </param>
 392   </block>
 393   <block>
 394     <key>gr_throttle</key>
 395     <param>
 396       <key>id</key>
 397       <value>gr_throttle_0</value>
 398     </param>
 399     <param>
 400       <key>_enabled</key>
 401       <value>True</value>
 402     </param>
 403     <param>
 404       <key>type</key>
 405       <value>complex</value>
 406     </param>
 407     <param>
 408       <key>samples_per_second</key>
 409       <value>samp_rate</value>
 410     </param>
 411     <param>
 412       <key>vlen</key>
 413       <value>1</value>
 414     </param>
 415     <param>
 416       <key>_coordinate</key>
 417       <value>(757, 418)</value>
 418     </param>
 419     <param>
 420       <key>_rotation</key>
 421       <value>0</value>
 422     </param>
 423   </block>
 424   <block>
 425     <key>gr_uchar_to_float</key>
 426     <param>
 427       <key>id</key>
 428       <value>gr_uchar_to_float_0</value>
 429     </param>
 430     <param>
 431       <key>_enabled</key>
 432       <value>True</value>
 433     </param>
 434     <param>
 435       <key>_coordinate</key>
 436       <value>(261, 107)</value>
 437     </param>
 438     <param>
 439       <key>_rotation</key>
 440       <value>0</value>
 441     </param>
 442   </block>
 443   <block>
 444     <key>gr_float_to_complex</key>
 445     <param>
 446       <key>id</key>
 447       <value>gr_float_to_complex_0</value>
 448     </param>
 449     <param>
 450       <key>_enabled</key>
 451       <value>True</value>
 452     </param>
 453     <param>
 454       <key>vlen</key>
 455       <value>1</value>
 456     </param>
 457     <param>
 458       <key>_coordinate</key>
 459       <value>(380, 553)</value>
 460     </param>
 461     <param>
 462       <key>_rotation</key>
 463       <value>0</value>
 464     </param>
 465   </block>
 466   <block>
 467     <key>gr_fractional_interpolator_xx</key>
 468     <param>
 469       <key>id</key>
 470       <value>gr_fractional_interpolator_xx_0</value>
 471     </param>
 472     <param>
 473       <key>_enabled</key>
 474       <value>True</value>
 475     </param>
 476     <param>
 477       <key>type</key>
 478       <value>complex</value>
 479     </param>
 480     <param>
 481       <key>phase_shift</key>
 482       <value>0.5</value>
 483     </param>
 484     <param>
 485       <key>interp_ratio</key>
 486       <value>1</value>
 487     </param>
 488     <param>
 489       <key>_coordinate</key>
 490       <value>(349, 662)</value>
 491     </param>
 492     <param>
 493       <key>_rotation</key>
 494       <value>0</value>
 495     </param>
 496   </block>
 497   <block>
 498     <key>variable</key>
 499     <param>
 500       <key>id</key>
 501       <value>samp_rate</value>
 502     </param>
 503     <param>
 504       <key>_enabled</key>
 505       <value>True</value>
 506     </param>
 507     <param>
 508       <key>value</key>
 509       <value>320000</value>
 510     </param>
 511     <param>
 512       <key>_coordinate</key>
 513       <value>(128, 9)</value>
 514     </param>
 515     <param>
 516       <key>_rotation</key>
 517       <value>0</value>
 518     </param>
 519   </block>
 520   <block>
 521     <key>wxgui_scopesink2</key>
 522     <param>
 523       <key>id</key>
 524       <value>wxgui_scopesink2_0</value>
 525     </param>
 526     <param>
 527       <key>_enabled</key>
 528       <value>True</value>
 529     </param>
 530     <param>
 531       <key>type</key>
 532       <value>complex</value>
 533     </param>
 534     <param>
 535       <key>title</key>
 536       <value>Scope Plot</value>
 537     </param>
 538     <param>
 539       <key>samp_rate</key>
 540       <value>samp_rate</value>
 541     </param>
 542     <param>
 543       <key>v_scale</key>
 544       <value>0</value>
 545     </param>
 546     <param>
 547       <key>t_scale</key>
 548       <value>0</value>
 549     </param>
 550     <param>
 551       <key>ac_couple</key>
 552       <value>False</value>
 553     </param>
 554     <param>
 555       <key>xy_mode</key>
 556       <value>False</value>
 557     </param>
 558     <param>
 559       <key>num_inputs</key>
 560       <value>1</value>
 561     </param>
 562     <param>
 563       <key>grid_pos</key>
 564       <value></value>
 565     </param>
 566     <param>
 567       <key>notebook</key>
 568       <value></value>
 569     </param>
 570     <param>
 571       <key>_coordinate</key>
 572       <value>(789, 258)</value>
 573     </param>
 574     <param>
 575       <key>_rotation</key>
 576       <value>0</value>
 577     </param>
 578   </block>
 579   <block>
 580     <key>variable_slider</key>
 581     <param>
 582       <key>id</key>
 583       <value>gain</value>
 584     </param>
 585     <param>
 586       <key>_enabled</key>
 587       <value>True</value>
 588     </param>
 589     <param>
 590       <key>label</key>
 591       <value>Gain</value>
 592     </param>
 593     <param>
 594       <key>value</key>
 595       <value>0</value>
 596     </param>
 597     <param>
 598       <key>min</key>
 599       <value>0</value>
 600     </param>
 601     <param>
 602       <key>max</key>
 603       <value>1</value>
 604     </param>
 605     <param>
 606       <key>num_steps</key>
 607       <value>1000</value>
 608     </param>
 609     <param>
 610       <key>style</key>
 611       <value>wx.SL_HORIZONTAL</value>
 612     </param>
 613     <param>
 614       <key>converver</key>
 615       <value>float_converter</value>
 616     </param>
 617     <param>
 618       <key>grid_pos</key>
 619       <value></value>
 620     </param>
 621     <param>
 622       <key>notebook</key>
 623       <value></value>
 624     </param>
 625     <param>
 626       <key>_coordinate</key>
 627       <value>(757, -1)</value>
 628     </param>
 629     <param>
 630       <key>_rotation</key>
 631       <value>0</value>
 632     </param>
 633   </block>
 634   <block>
 635     <key>gr_add_xx</key>
 636     <param>
 637       <key>id</key>
 638       <value>gr_add_xx_0</value>
 639     </param>
 640     <param>
 641       <key>_enabled</key>
 642       <value>True</value>
 643     </param>
 644     <param>
 645       <key>type</key>
 646       <value>float</value>
 647     </param>
 648     <param>
 649       <key>num_inputs</key>
 650       <value>2</value>
 651     </param>
 652     <param>
 653       <key>vlen</key>
 654       <value>1</value>
 655     </param>
 656     <param>
 657       <key>_coordinate</key>
 658       <value>(482, 130)</value>
 659     </param>
 660     <param>
 661       <key>_rotation</key>
 662       <value>0</value>
 663     </param>
 664   </block>
 665   <block>
 666     <key>notebook</key>
 667     <param>
 668       <key>id</key>
 669       <value>notebook_0</value>
 670     </param>
 671     <param>
 672       <key>_enabled</key>
 673       <value>True</value>
 674     </param>
 675     <param>
 676       <key>style</key>
 677       <value>wx.NB_TOP</value>
 678     </param>
 679     <param>
 680       <key>labels</key>
 681       <value>['error', 'phase', 'freq']</value>
 682     </param>
 683     <param>
 684       <key>grid_pos</key>
 685       <value></value>
 686     </param>
 687     <param>
 688       <key>notebook</key>
 689       <value></value>
 690     </param>
 691     <param>
 692       <key>_coordinate</key>
 693       <value>(851, 531)</value>
 694     </param>
 695     <param>
 696       <key>_rotation</key>
 697       <value>0</value>
 698     </param>
 699   </block>
 700   <block>
 701     <key>wxgui_scopesink2</key>
 702     <param>
 703       <key>id</key>
 704       <value>wxgui_scopesink2_0_0</value>
 705     </param>
 706     <param>
 707       <key>_enabled</key>
 708       <value>True</value>
 709     </param>
 710     <param>
 711       <key>type</key>
 712       <value>float</value>
 713     </param>
 714     <param>
 715       <key>title</key>
 716       <value>Scope Plot</value>
 717     </param>
 718     <param>
 719       <key>samp_rate</key>
 720       <value>samp_rate</value>
 721     </param>
 722     <param>
 723       <key>v_scale</key>
 724       <value>0</value>
 725     </param>
 726     <param>
 727       <key>t_scale</key>
 728       <value>0</value>
 729     </param>
 730     <param>
 731       <key>ac_couple</key>
 732       <value>False</value>
 733     </param>
 734     <param>
 735       <key>xy_mode</key>
 736       <value>False</value>
 737     </param>
 738     <param>
 739       <key>num_inputs</key>
 740       <value>1</value>
 741     </param>
 742     <param>
 743       <key>grid_pos</key>
 744       <value></value>
 745     </param>
 746     <param>
 747       <key>notebook</key>
 748       <value>notebook_0,0</value>
 749     </param>
 750     <param>
 751       <key>_coordinate</key>
 752       <value>(798, 638)</value>
 753     </param>
 754     <param>
 755       <key>_rotation</key>
 756       <value>0</value>
 757     </param>
 758   </block>
 759   <block>
 760     <key>wxgui_scopesink2</key>
 761     <param>
 762       <key>id</key>
 763       <value>wxgui_scopesink2_0_0_0</value>
 764     </param>
 765     <param>
 766       <key>_enabled</key>
 767       <value>True</value>
 768     </param>
 769     <param>
 770       <key>type</key>
 771       <value>float</value>
 772     </param>
 773     <param>
 774       <key>title</key>
 775       <value>Scope Plot</value>
 776     </param>
 777     <param>
 778       <key>samp_rate</key>
 779       <value>samp_rate</value>
 780     </param>
 781     <param>
 782       <key>v_scale</key>
 783       <value>0</value>
 784     </param>
 785     <param>
 786       <key>t_scale</key>
 787       <value>0</value>
 788     </param>
 789     <param>
 790       <key>ac_couple</key>
 791       <value>False</value>
 792     </param>
 793     <param>
 794       <key>xy_mode</key>
 795       <value>False</value>
 796     </param>
 797     <param>
 798       <key>num_inputs</key>
 799       <value>1</value>
 800     </param>
 801     <param>
 802       <key>grid_pos</key>
 803       <value></value>
 804     </param>
 805     <param>
 806       <key>notebook</key>
 807       <value>notebook_0,1</value>
 808     </param>
 809     <param>
 810       <key>_coordinate</key>
 811       <value>(792, 777)</value>
 812     </param>
 813     <param>
 814       <key>_rotation</key>
 815       <value>0</value>
 816     </param>
 817   </block>
 818   <block>
 819     <key>gr_pfb_clock_sync_ccf</key>
 820     <param>
 821       <key>id</key>
 822       <value>gr_pfb_clock_sync_ccf_0</value>
 823     </param>
 824     <param>
 825       <key>_enabled</key>
 826       <value>True</value>
 827     </param>
 828     <param>
 829       <key>sps</key>
 830       <value>spb</value>
 831     </param>
 832     <param>
 833       <key>gain</key>
 834       <value>gain</value>
 835     </param>
 836     <param>
 837       <key>taps</key>
 838       <value>rrctaps</value>
 839     </param>
 840     <param>
 841       <key>filter_size</key>
 842       <value>nfilts</value>
 843     </param>
 844     <param>
 845       <key>init_phase</key>
 846       <value>14</value>
 847     </param>
 848     <param>
 849       <key>_coordinate</key>
 850       <value>(341, 777)</value>
 851     </param>
 852     <param>
 853       <key>_rotation</key>
 854       <value>0</value>
 855     </param>
 856   </block>
 857   <block>
 858     <key>wxgui_scopesink2</key>
 859     <param>
 860       <key>id</key>
 861       <value>wxgui_scopesink2_0_0_0_0</value>
 862     </param>
 863     <param>
 864       <key>_enabled</key>
 865       <value>True</value>
 866     </param>
 867     <param>
 868       <key>type</key>
 869       <value>float</value>
 870     </param>
 871     <param>
 872       <key>title</key>
 873       <value>Scope Plot</value>
 874     </param>
 875     <param>
 876       <key>samp_rate</key>
 877       <value>samp_rate</value>
 878     </param>
 879     <param>
 880       <key>v_scale</key>
 881       <value>0</value>
 882     </param>
 883     <param>
 884       <key>t_scale</key>
 885       <value>0</value>
 886     </param>
 887     <param>
 888       <key>ac_couple</key>
 889       <value>False</value>
 890     </param>
 891     <param>
 892       <key>xy_mode</key>
 893       <value>False</value>
 894     </param>
 895     <param>
 896       <key>num_inputs</key>
 897       <value>1</value>
 898     </param>
 899     <param>
 900       <key>grid_pos</key>
 901       <value></value>
 902     </param>
 903     <param>
 904       <key>notebook</key>
 905       <value>notebook_0,2</value>
 906     </param>
 907     <param>
 908       <key>_coordinate</key>
 909       <value>(797, 915)</value>
 910     </param>
 911     <param>
 912       <key>_rotation</key>
 913       <value>0</value>
 914     </param>
 915   </block>
 916   <connection>
 917     <source_block_id>random_source_x_0</source_block_id>
 918     <sink_block_id>gr_uchar_to_float_0</sink_block_id>
 919     <source_key>0</source_key>
 920     <sink_key>0</sink_key>
 921   </connection>
 922   <connection>
 923     <source_block_id>gr_uchar_to_float_0</source_block_id>
 924     <sink_block_id>gr_add_xx_0</sink_block_id>
 925     <source_key>0</source_key>
 926     <sink_key>0</sink_key>
 927   </connection>
 928   <connection>
 929     <source_block_id>const_source_x_0</source_block_id>
 930     <sink_block_id>gr_add_xx_0</sink_block_id>
 931     <source_key>0</source_key>
 932     <sink_key>1</sink_key>
 933   </connection>
 934   <connection>
 935     <source_block_id>gr_add_xx_0</source_block_id>
 936     <sink_block_id>root_raised_cosine_filter_0</sink_block_id>
 937     <source_key>0</source_key>
 938     <sink_key>0</sink_key>
 939   </connection>
 940   <connection>
 941     <source_block_id>gr_throttle_0</source_block_id>
 942     <sink_block_id>wxgui_scopesink2_0</sink_block_id>
 943     <source_key>0</source_key>
 944     <sink_key>0</sink_key>
 945   </connection>
 946   <connection>
 947     <source_block_id>root_raised_cosine_filter_0</source_block_id>
 948     <sink_block_id>gr_add_xx_0_0</sink_block_id>
 949     <source_key>0</source_key>
 950     <sink_key>0</sink_key>
 951   </connection>
 952   <connection>
 953     <source_block_id>gr_noise_source_x_0</source_block_id>
 954     <sink_block_id>gr_add_xx_0_0</sink_block_id>
 955     <source_key>0</source_key>
 956     <sink_key>1</sink_key>
 957   </connection>
 958   <connection>
 959     <source_block_id>gr_add_xx_0_0</source_block_id>
 960     <sink_block_id>gr_float_to_complex_0</sink_block_id>
 961     <source_key>0</source_key>
 962     <sink_key>0</sink_key>
 963   </connection>
 964   <connection>
 965     <source_block_id>const_source_x_1</source_block_id>
 966     <sink_block_id>gr_float_to_complex_0</sink_block_id>
 967     <source_key>0</source_key>
 968     <sink_key>1</sink_key>
 969   </connection>
 970   <connection>
 971     <source_block_id>gr_pfb_clock_sync_ccf_0</source_block_id>
 972     <sink_block_id>gr_throttle_0</sink_block_id>
 973     <source_key>0</source_key>
 974     <sink_key>0</sink_key>
 975   </connection>
 976   <connection>
 977     <source_block_id>gr_pfb_clock_sync_ccf_0</source_block_id>
 978     <sink_block_id>wxgui_scopesink2_0_0</sink_block_id>
 979     <source_key>1</source_key>
 980     <sink_key>0</sink_key>
 981   </connection>
 982   <connection>
 983     <source_block_id>gr_float_to_complex_0</source_block_id>
 984     <sink_block_id>gr_fractional_interpolator_xx_0</sink_block_id>
 985     <source_key>0</source_key>
 986     <sink_key>0</sink_key>
 987   </connection>
 988   <connection>
 989     <source_block_id>gr_fractional_interpolator_xx_0</source_block_id>
 990     <sink_block_id>gr_pfb_clock_sync_ccf_0</sink_block_id>
 991     <source_key>0</source_key>
 992     <sink_key>0</sink_key>
 993   </connection>
 994   <connection>
 995     <source_block_id>gr_pfb_clock_sync_ccf_0</source_block_id>
 996     <sink_block_id>wxgui_scopesink2_0_0_0</sink_block_id>
 997     <source_key>3</source_key>
 998     <sink_key>0</sink_key>
 999   </connection>
1000   <connection>
1001     <source_block_id>gr_pfb_clock_sync_ccf_0</source_block_id>
1002     <sink_block_id>wxgui_scopesink2_0_0_0_0</sink_block_id>
1003     <source_key>2</source_key>
1004     <sink_key>0</sink_key>
1005   </connection>
1006 </flow_graph>