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  1. <?xml version='1.0' encoding='utf-8'?>
  2. <?grc format='1' created='3.7.10'?>
  3. <flow_graph>
  4. <timestamp>Wed Jul 9 15:50:17 2014</timestamp>
  5. <block>
  6. <key>options</key>
  7. <param>
  8. <key>author</key>
  9. <value></value>
  10. </param>
  11. <param>
  12. <key>window_size</key>
  13. <value>1280, 1024</value>
  14. </param>
  15. <param>
  16. <key>category</key>
  17. <value>Custom</value>
  18. </param>
  19. <param>
  20. <key>comment</key>
  21. <value></value>
  22. </param>
  23. <param>
  24. <key>description</key>
  25. <value>Example of an OFDM receiver</value>
  26. </param>
  27. <param>
  28. <key>_enabled</key>
  29. <value>True</value>
  30. </param>
  31. <param>
  32. <key>_coordinate</key>
  33. <value>(1, 0)</value>
  34. </param>
  35. <param>
  36. <key>_rotation</key>
  37. <value>0</value>
  38. </param>
  39. <param>
  40. <key>generate_options</key>
  41. <value>qt_gui</value>
  42. </param>
  43. <param>
  44. <key>hier_block_src_path</key>
  45. <value>.:</value>
  46. </param>
  47. <param>
  48. <key>id</key>
  49. <value>rx_ofdm</value>
  50. </param>
  51. <param>
  52. <key>max_nouts</key>
  53. <value>0</value>
  54. </param>
  55. <param>
  56. <key>qt_qss_theme</key>
  57. <value></value>
  58. </param>
  59. <param>
  60. <key>realtime_scheduling</key>
  61. <value></value>
  62. </param>
  63. <param>
  64. <key>run_command</key>
  65. <value>{python} -u {filename}</value>
  66. </param>
  67. <param>
  68. <key>run_options</key>
  69. <value>prompt</value>
  70. </param>
  71. <param>
  72. <key>run</key>
  73. <value>True</value>
  74. </param>
  75. <param>
  76. <key>thread_safe_setters</key>
  77. <value></value>
  78. </param>
  79. <param>
  80. <key>title</key>
  81. <value>OFDM Rx</value>
  82. </param>
  83. </block>
  84. <block>
  85. <key>variable</key>
  86. <param>
  87. <key>comment</key>
  88. <value></value>
  89. </param>
  90. <param>
  91. <key>_enabled</key>
  92. <value>True</value>
  93. </param>
  94. <param>
  95. <key>_coordinate</key>
  96. <value>(301, -1)</value>
  97. </param>
  98. <param>
  99. <key>_rotation</key>
  100. <value>0</value>
  101. </param>
  102. <param>
  103. <key>id</key>
  104. <value>fft_len</value>
  105. </param>
  106. <param>
  107. <key>value</key>
  108. <value>64</value>
  109. </param>
  110. </block>
  111. <block>
  112. <key>variable</key>
  113. <param>
  114. <key>comment</key>
  115. <value></value>
  116. </param>
  117. <param>
  118. <key>_enabled</key>
  119. <value>True</value>
  120. </param>
  121. <param>
  122. <key>_coordinate</key>
  123. <value>(367, -1)</value>
  124. </param>
  125. <param>
  126. <key>_rotation</key>
  127. <value>0</value>
  128. </param>
  129. <param>
  130. <key>id</key>
  131. <value>length_tag_key</value>
  132. </param>
  133. <param>
  134. <key>value</key>
  135. <value>"frame_len"</value>
  136. </param>
  137. </block>
  138. <block>
  139. <key>variable</key>
  140. <param>
  141. <key>comment</key>
  142. <value></value>
  143. </param>
  144. <param>
  145. <key>_enabled</key>
  146. <value>True</value>
  147. </param>
  148. <param>
  149. <key>_coordinate</key>
  150. <value>(541, 70)</value>
  151. </param>
  152. <param>
  153. <key>_rotation</key>
  154. <value>0</value>
  155. </param>
  156. <param>
  157. <key>id</key>
  158. <value>occupied_carriers</value>
  159. </param>
  160. <param>
  161. <key>value</key>
  162. <value>(range(-26, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) + range(8, 21) + range(22, 27),)</value>
  163. </param>
  164. </block>
  165. <block>
  166. <key>variable</key>
  167. <param>
  168. <key>comment</key>
  169. <value></value>
  170. </param>
  171. <param>
  172. <key>_enabled</key>
  173. <value>True</value>
  174. </param>
  175. <param>
  176. <key>_coordinate</key>
  177. <value>(1034, 0)</value>
  178. </param>
  179. <param>
  180. <key>_rotation</key>
  181. <value>0</value>
  182. </param>
  183. <param>
  184. <key>id</key>
  185. <value>packet_len</value>
  186. </param>
  187. <param>
  188. <key>value</key>
  189. <value>96</value>
  190. </param>
  191. </block>
  192. <block>
  193. <key>variable</key>
  194. <param>
  195. <key>comment</key>
  196. <value></value>
  197. </param>
  198. <param>
  199. <key>_enabled</key>
  200. <value>True</value>
  201. </param>
  202. <param>
  203. <key>_coordinate</key>
  204. <value>(1132, 0)</value>
  205. </param>
  206. <param>
  207. <key>_rotation</key>
  208. <value>0</value>
  209. </param>
  210. <param>
  211. <key>id</key>
  212. <value>packet_length_tag_key</value>
  213. </param>
  214. <param>
  215. <key>value</key>
  216. <value>"packet_len"</value>
  217. </param>
  218. </block>
  219. <block>
  220. <key>variable</key>
  221. <param>
  222. <key>comment</key>
  223. <value></value>
  224. </param>
  225. <param>
  226. <key>_enabled</key>
  227. <value>True</value>
  228. </param>
  229. <param>
  230. <key>_coordinate</key>
  231. <value>(663, 1)</value>
  232. </param>
  233. <param>
  234. <key>_rotation</key>
  235. <value>0</value>
  236. </param>
  237. <param>
  238. <key>id</key>
  239. <value>payload_mod</value>
  240. </param>
  241. <param>
  242. <key>value</key>
  243. <value>digital.constellation_qpsk()</value>
  244. </param>
  245. </block>
  246. <block>
  247. <key>variable</key>
  248. <param>
  249. <key>comment</key>
  250. <value></value>
  251. </param>
  252. <param>
  253. <key>_enabled</key>
  254. <value>True</value>
  255. </param>
  256. <param>
  257. <key>_coordinate</key>
  258. <value>(692, 70)</value>
  259. </param>
  260. <param>
  261. <key>_rotation</key>
  262. <value>0</value>
  263. </param>
  264. <param>
  265. <key>id</key>
  266. <value>pilot_carriers</value>
  267. </param>
  268. <param>
  269. <key>value</key>
  270. <value>((-21, -7, 7, 21,),)</value>
  271. </param>
  272. </block>
  273. <block>
  274. <key>variable</key>
  275. <param>
  276. <key>comment</key>
  277. <value></value>
  278. </param>
  279. <param>
  280. <key>_enabled</key>
  281. <value>True</value>
  282. </param>
  283. <param>
  284. <key>_coordinate</key>
  285. <value>(813, 70)</value>
  286. </param>
  287. <param>
  288. <key>_rotation</key>
  289. <value>0</value>
  290. </param>
  291. <param>
  292. <key>id</key>
  293. <value>pilot_symbols</value>
  294. </param>
  295. <param>
  296. <key>value</key>
  297. <value>((1, 1, 1, -1,),)</value>
  298. </param>
  299. </block>
  300. <block>
  301. <key>variable</key>
  302. <param>
  303. <key>comment</key>
  304. <value></value>
  305. </param>
  306. <param>
  307. <key>_enabled</key>
  308. <value>True</value>
  309. </param>
  310. <param>
  311. <key>_coordinate</key>
  312. <value>(170, 65)</value>
  313. </param>
  314. <param>
  315. <key>_rotation</key>
  316. <value>0</value>
  317. </param>
  318. <param>
  319. <key>id</key>
  320. <value>samp_rate</value>
  321. </param>
  322. <param>
  323. <key>value</key>
  324. <value>10000</value>
  325. </param>
  326. </block>
  327. <block>
  328. <key>variable</key>
  329. <param>
  330. <key>comment</key>
  331. <value></value>
  332. </param>
  333. <param>
  334. <key>_enabled</key>
  335. <value>True</value>
  336. </param>
  337. <param>
  338. <key>_coordinate</key>
  339. <value>(255, 67)</value>
  340. </param>
  341. <param>
  342. <key>_rotation</key>
  343. <value>0</value>
  344. </param>
  345. <param>
  346. <key>id</key>
  347. <value>sync_word1</value>
  348. </param>
  349. <param>
  350. <key>value</key>
  351. <value>[0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 0., 0., 0., 0., 0.]</value>
  352. </param>
  353. </block>
  354. <block>
  355. <key>variable</key>
  356. <param>
  357. <key>comment</key>
  358. <value></value>
  359. </param>
  360. <param>
  361. <key>_enabled</key>
  362. <value>True</value>
  363. </param>
  364. <param>
  365. <key>_coordinate</key>
  366. <value>(399, 66)</value>
  367. </param>
  368. <param>
  369. <key>_rotation</key>
  370. <value>0</value>
  371. </param>
  372. <param>
  373. <key>id</key>
  374. <value>sync_word2</value>
  375. </param>
  376. <param>
  377. <key>value</key>
  378. <value>[0j, 0j, 0j, 0j, 0j, 0j, (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1 +0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), 0j, (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), 0j, 0j, 0j, 0j, 0j]</value>
  379. </param>
  380. </block>
  381. <block>
  382. <key>analog_random_source_x</key>
  383. <param>
  384. <key>alias</key>
  385. <value></value>
  386. </param>
  387. <param>
  388. <key>comment</key>
  389. <value></value>
  390. </param>
  391. <param>
  392. <key>affinity</key>
  393. <value></value>
  394. </param>
  395. <param>
  396. <key>_enabled</key>
  397. <value>True</value>
  398. </param>
  399. <param>
  400. <key>_coordinate</key>
  401. <value>(2, 167)</value>
  402. </param>
  403. <param>
  404. <key>_rotation</key>
  405. <value>0</value>
  406. </param>
  407. <param>
  408. <key>id</key>
  409. <value>analog_random_source_x_0</value>
  410. </param>
  411. <param>
  412. <key>maxoutbuf</key>
  413. <value>0</value>
  414. </param>
  415. <param>
  416. <key>max</key>
  417. <value>255</value>
  418. </param>
  419. <param>
  420. <key>minoutbuf</key>
  421. <value>0</value>
  422. </param>
  423. <param>
  424. <key>min</key>
  425. <value>0</value>
  426. </param>
  427. <param>
  428. <key>num_samps</key>
  429. <value>1000</value>
  430. </param>
  431. <param>
  432. <key>type</key>
  433. <value>byte</value>
  434. </param>
  435. <param>
  436. <key>repeat</key>
  437. <value>True</value>
  438. </param>
  439. </block>
  440. <block>
  441. <key>blocks_stream_to_tagged_stream</key>
  442. <param>
  443. <key>alias</key>
  444. <value></value>
  445. </param>
  446. <param>
  447. <key>comment</key>
  448. <value></value>
  449. </param>
  450. <param>
  451. <key>affinity</key>
  452. <value></value>
  453. </param>
  454. <param>
  455. <key>_enabled</key>
  456. <value>True</value>
  457. </param>
  458. <param>
  459. <key>_coordinate</key>
  460. <value>(171, 182)</value>
  461. </param>
  462. <param>
  463. <key>_rotation</key>
  464. <value>0</value>
  465. </param>
  466. <param>
  467. <key>id</key>
  468. <value>blocks_stream_to_tagged_stream_0</value>
  469. </param>
  470. <param>
  471. <key>len_tag_key</key>
  472. <value>packet_length_tag_key</value>
  473. </param>
  474. <param>
  475. <key>maxoutbuf</key>
  476. <value>0</value>
  477. </param>
  478. <param>
  479. <key>minoutbuf</key>
  480. <value>0</value>
  481. </param>
  482. <param>
  483. <key>packet_len</key>
  484. <value>packet_len</value>
  485. </param>
  486. <param>
  487. <key>type</key>
  488. <value>byte</value>
  489. </param>
  490. <param>
  491. <key>vlen</key>
  492. <value>1</value>
  493. </param>
  494. </block>
  495. <block>
  496. <key>blocks_vector_to_stream</key>
  497. <param>
  498. <key>alias</key>
  499. <value></value>
  500. </param>
  501. <param>
  502. <key>comment</key>
  503. <value></value>
  504. </param>
  505. <param>
  506. <key>affinity</key>
  507. <value></value>
  508. </param>
  509. <param>
  510. <key>_enabled</key>
  511. <value>True</value>
  512. </param>
  513. <param>
  514. <key>_coordinate</key>
  515. <value>(1040, 378)</value>
  516. </param>
  517. <param>
  518. <key>_rotation</key>
  519. <value>0</value>
  520. </param>
  521. <param>
  522. <key>id</key>
  523. <value>blocks_vector_to_stream_0_0</value>
  524. </param>
  525. <param>
  526. <key>type</key>
  527. <value>complex</value>
  528. </param>
  529. <param>
  530. <key>maxoutbuf</key>
  531. <value>0</value>
  532. </param>
  533. <param>
  534. <key>minoutbuf</key>
  535. <value>0</value>
  536. </param>
  537. <param>
  538. <key>num_items</key>
  539. <value>64</value>
  540. </param>
  541. <param>
  542. <key>vlen</key>
  543. <value>1</value>
  544. </param>
  545. </block>
  546. <block>
  547. <key>digital_ofdm_tx</key>
  548. <param>
  549. <key>alias</key>
  550. <value></value>
  551. </param>
  552. <param>
  553. <key>comment</key>
  554. <value></value>
  555. </param>
  556. <param>
  557. <key>affinity</key>
  558. <value></value>
  559. </param>
  560. <param>
  561. <key>cp_len</key>
  562. <value>fft_len/4</value>
  563. </param>
  564. <param>
  565. <key>_enabled</key>
  566. <value>True</value>
  567. </param>
  568. <param>
  569. <key>fft_len</key>
  570. <value>fft_len</value>
  571. </param>
  572. <param>
  573. <key>_coordinate</key>
  574. <value>(464, 162)</value>
  575. </param>
  576. <param>
  577. <key>_rotation</key>
  578. <value>0</value>
  579. </param>
  580. <param>
  581. <key>header_mod</key>
  582. <value>"BPSK"</value>
  583. </param>
  584. <param>
  585. <key>id</key>
  586. <value>digital_ofdm_tx_0</value>
  587. </param>
  588. <param>
  589. <key>packet_len_key</key>
  590. <value>packet_length_tag_key</value>
  591. </param>
  592. <param>
  593. <key>log</key>
  594. <value>True</value>
  595. </param>
  596. <param>
  597. <key>maxoutbuf</key>
  598. <value>0</value>
  599. </param>
  600. <param>
  601. <key>minoutbuf</key>
  602. <value>0</value>
  603. </param>
  604. <param>
  605. <key>occupied_carriers</key>
  606. <value>occupied_carriers</value>
  607. </param>
  608. <param>
  609. <key>payload_mod</key>
  610. <value>"QPSK"</value>
  611. </param>
  612. <param>
  613. <key>pilot_carriers</key>
  614. <value>pilot_carriers</value>
  615. </param>
  616. <param>
  617. <key>pilot_symbols</key>
  618. <value>pilot_symbols</value>
  619. </param>
  620. <param>
  621. <key>rolloff</key>
  622. <value>0</value>
  623. </param>
  624. <param>
  625. <key>scramble_bits</key>
  626. <value>False</value>
  627. </param>
  628. <param>
  629. <key>sync_word1</key>
  630. <value>sync_word1</value>
  631. </param>
  632. <param>
  633. <key>sync_word2</key>
  634. <value>sync_word2</value>
  635. </param>
  636. </block>
  637. <block>
  638. <key>dtv_dvbt_ofdm_sym_acquisition</key>
  639. <param>
  640. <key>alias</key>
  641. <value></value>
  642. </param>
  643. <param>
  644. <key>comment</key>
  645. <value></value>
  646. </param>
  647. <param>
  648. <key>affinity</key>
  649. <value></value>
  650. </param>
  651. <param>
  652. <key>cp_length</key>
  653. <value>16</value>
  654. </param>
  655. <param>
  656. <key>_enabled</key>
  657. <value>True</value>
  658. </param>
  659. <param>
  660. <key>fft_length</key>
  661. <value>64</value>
  662. </param>
  663. <param>
  664. <key>_coordinate</key>
  665. <value>(768, 186)</value>
  666. </param>
  667. <param>
  668. <key>_rotation</key>
  669. <value>0</value>
  670. </param>
  671. <param>
  672. <key>id</key>
  673. <value>dtv_dvbt_ofdm_sym_acquisition_1</value>
  674. </param>
  675. <param>
  676. <key>maxoutbuf</key>
  677. <value>0</value>
  678. </param>
  679. <param>
  680. <key>minoutbuf</key>
  681. <value>0</value>
  682. </param>
  683. <param>
  684. <key>occupied_tones</key>
  685. <value>64</value>
  686. </param>
  687. <param>
  688. <key>type</key>
  689. <value>complex</value>
  690. </param>
  691. <param>
  692. <key>snr</key>
  693. <value>1</value>
  694. </param>
  695. </block>
  696. <block>
  697. <key>fft_vxx</key>
  698. <param>
  699. <key>alias</key>
  700. <value></value>
  701. </param>
  702. <param>
  703. <key>comment</key>
  704. <value></value>
  705. </param>
  706. <param>
  707. <key>affinity</key>
  708. <value></value>
  709. </param>
  710. <param>
  711. <key>_enabled</key>
  712. <value>True</value>
  713. </param>
  714. <param>
  715. <key>fft_size</key>
  716. <value>fft_len</value>
  717. </param>
  718. <param>
  719. <key>forward</key>
  720. <value>True</value>
  721. </param>
  722. <param>
  723. <key>_coordinate</key>
  724. <value>(1072, 170)</value>
  725. </param>
  726. <param>
  727. <key>_rotation</key>
  728. <value>0</value>
  729. </param>
  730. <param>
  731. <key>id</key>
  732. <value>fft_vxx_0_0</value>
  733. </param>
  734. <param>
  735. <key>type</key>
  736. <value>complex</value>
  737. </param>
  738. <param>
  739. <key>maxoutbuf</key>
  740. <value>0</value>
  741. </param>
  742. <param>
  743. <key>minoutbuf</key>
  744. <value>0</value>
  745. </param>
  746. <param>
  747. <key>nthreads</key>
  748. <value>1</value>
  749. </param>
  750. <param>
  751. <key>shift</key>
  752. <value>True</value>
  753. </param>
  754. <param>
  755. <key>window</key>
  756. <value>()</value>
  757. </param>
  758. </block>
  759. <block>
  760. <key>import</key>
  761. <param>
  762. <key>alias</key>
  763. <value></value>
  764. </param>
  765. <param>
  766. <key>comment</key>
  767. <value></value>
  768. </param>
  769. <param>
  770. <key>_enabled</key>
  771. <value>True</value>
  772. </param>
  773. <param>
  774. <key>_coordinate</key>
  775. <value>(163, 0)</value>
  776. </param>
  777. <param>
  778. <key>_rotation</key>
  779. <value>0</value>
  780. </param>
  781. <param>
  782. <key>id</key>
  783. <value>import_1</value>
  784. </param>
  785. <param>
  786. <key>import</key>
  787. <value>from gnuradio.digital.utils import tagged_streams</value>
  788. </param>
  789. </block>
  790. <block>
  791. <key>qtgui_const_sink_x</key>
  792. <param>
  793. <key>autoscale</key>
  794. <value>False</value>
  795. </param>
  796. <param>
  797. <key>alias</key>
  798. <value></value>
  799. </param>
  800. <param>
  801. <key>comment</key>
  802. <value></value>
  803. </param>
  804. <param>
  805. <key>affinity</key>
  806. <value></value>
  807. </param>
  808. <param>
  809. <key>_enabled</key>
  810. <value>True</value>
  811. </param>
  812. <param>
  813. <key>_coordinate</key>
  814. <value>(768, 538)</value>
  815. </param>
  816. <param>
  817. <key>gui_hint</key>
  818. <value></value>
  819. </param>
  820. <param>
  821. <key>_rotation</key>
  822. <value>0</value>
  823. </param>
  824. <param>
  825. <key>grid</key>
  826. <value>False</value>
  827. </param>
  828. <param>
  829. <key>id</key>
  830. <value>qtgui_const_sink_x_0_0_1</value>
  831. </param>
  832. <param>
  833. <key>legend</key>
  834. <value>True</value>
  835. </param>
  836. <param>
  837. <key>alpha1</key>
  838. <value>1.0</value>
  839. </param>
  840. <param>
  841. <key>color1</key>
  842. <value>"blue"</value>
  843. </param>
  844. <param>
  845. <key>label1</key>
  846. <value></value>
  847. </param>
  848. <param>
  849. <key>marker1</key>
  850. <value>0</value>
  851. </param>
  852. <param>
  853. <key>style1</key>
  854. <value>0</value>
  855. </param>
  856. <param>
  857. <key>width1</key>
  858. <value>1</value>
  859. </param>
  860. <param>
  861. <key>alpha10</key>
  862. <value>1.0</value>
  863. </param>
  864. <param>
  865. <key>color10</key>
  866. <value>"red"</value>
  867. </param>
  868. <param>
  869. <key>label10</key>
  870. <value></value>
  871. </param>
  872. <param>
  873. <key>marker10</key>
  874. <value>0</value>
  875. </param>
  876. <param>
  877. <key>style10</key>
  878. <value>0</value>
  879. </param>
  880. <param>
  881. <key>width10</key>
  882. <value>1</value>
  883. </param>
  884. <param>
  885. <key>alpha2</key>
  886. <value>1.0</value>
  887. </param>
  888. <param>
  889. <key>color2</key>
  890. <value>"red"</value>
  891. </param>
  892. <param>
  893. <key>label2</key>
  894. <value></value>
  895. </param>
  896. <param>
  897. <key>marker2</key>
  898. <value>0</value>
  899. </param>
  900. <param>
  901. <key>style2</key>
  902. <value>0</value>
  903. </param>
  904. <param>
  905. <key>width2</key>
  906. <value>1</value>
  907. </param>
  908. <param>
  909. <key>alpha3</key>
  910. <value>1.0</value>
  911. </param>
  912. <param>
  913. <key>color3</key>
  914. <value>"red"</value>
  915. </param>
  916. <param>
  917. <key>label3</key>
  918. <value></value>
  919. </param>
  920. <param>
  921. <key>marker3</key>
  922. <value>0</value>
  923. </param>
  924. <param>
  925. <key>style3</key>
  926. <value>0</value>
  927. </param>
  928. <param>
  929. <key>width3</key>
  930. <value>1</value>
  931. </param>
  932. <param>
  933. <key>alpha4</key>
  934. <value>1.0</value>
  935. </param>
  936. <param>
  937. <key>color4</key>
  938. <value>"red"</value>
  939. </param>
  940. <param>
  941. <key>label4</key>
  942. <value></value>
  943. </param>
  944. <param>
  945. <key>marker4</key>
  946. <value>0</value>
  947. </param>
  948. <param>
  949. <key>style4</key>
  950. <value>0</value>
  951. </param>
  952. <param>
  953. <key>width4</key>
  954. <value>1</value>
  955. </param>
  956. <param>
  957. <key>alpha5</key>
  958. <value>1.0</value>
  959. </param>
  960. <param>
  961. <key>color5</key>
  962. <value>"red"</value>
  963. </param>
  964. <param>
  965. <key>label5</key>
  966. <value></value>
  967. </param>
  968. <param>
  969. <key>marker5</key>
  970. <value>0</value>
  971. </param>
  972. <param>
  973. <key>style5</key>
  974. <value>0</value>
  975. </param>
  976. <param>
  977. <key>width5</key>
  978. <value>1</value>
  979. </param>
  980. <param>
  981. <key>alpha6</key>
  982. <value>1.0</value>
  983. </param>
  984. <param>
  985. <key>color6</key>
  986. <value>"red"</value>
  987. </param>
  988. <param>
  989. <key>label6</key>
  990. <value></value>
  991. </param>
  992. <param>
  993. <key>marker6</key>
  994. <value>0</value>
  995. </param>
  996. <param>
  997. <key>style6</key>
  998. <value>0</value>
  999. </param>
  1000. <param>
  1001. <key>width6</key>
  1002. <value>1</value>
  1003. </param>
  1004. <param>
  1005. <key>alpha7</key>
  1006. <value>1.0</value>
  1007. </param>
  1008. <param>
  1009. <key>color7</key>
  1010. <value>"red"</value>
  1011. </param>
  1012. <param>
  1013. <key>label7</key>
  1014. <value></value>
  1015. </param>
  1016. <param>
  1017. <key>marker7</key>
  1018. <value>0</value>
  1019. </param>
  1020. <param>
  1021. <key>style7</key>
  1022. <value>0</value>
  1023. </param>
  1024. <param>
  1025. <key>width7</key>
  1026. <value>1</value>
  1027. </param>
  1028. <param>
  1029. <key>alpha8</key>
  1030. <value>1.0</value>
  1031. </param>
  1032. <param>
  1033. <key>color8</key>
  1034. <value>"red"</value>
  1035. </param>
  1036. <param>
  1037. <key>label8</key>
  1038. <value></value>
  1039. </param>
  1040. <param>
  1041. <key>marker8</key>
  1042. <value>0</value>
  1043. </param>
  1044. <param>
  1045. <key>style8</key>
  1046. <value>0</value>
  1047. </param>
  1048. <param>
  1049. <key>width8</key>
  1050. <value>1</value>
  1051. </param>
  1052. <param>
  1053. <key>alpha9</key>
  1054. <value>1.0</value>
  1055. </param>
  1056. <param>
  1057. <key>color9</key>
  1058. <value>"red"</value>
  1059. </param>
  1060. <param>
  1061. <key>label9</key>
  1062. <value></value>
  1063. </param>
  1064. <param>
  1065. <key>marker9</key>
  1066. <value>0</value>
  1067. </param>
  1068. <param>
  1069. <key>style9</key>
  1070. <value>0</value>
  1071. </param>
  1072. <param>
  1073. <key>width9</key>
  1074. <value>1</value>
  1075. </param>
  1076. <param>
  1077. <key>name</key>
  1078. <value>""</value>
  1079. </param>
  1080. <param>
  1081. <key>nconnections</key>
  1082. <value>1</value>
  1083. </param>
  1084. <param>
  1085. <key>size</key>
  1086. <value>1024*10</value>
  1087. </param>
  1088. <param>
  1089. <key>tr_chan</key>
  1090. <value>0</value>
  1091. </param>
  1092. <param>
  1093. <key>tr_level</key>
  1094. <value>0.0</value>
  1095. </param>
  1096. <param>
  1097. <key>tr_mode</key>
  1098. <value>qtgui.TRIG_MODE_FREE</value>
  1099. </param>
  1100. <param>
  1101. <key>tr_slope</key>
  1102. <value>qtgui.TRIG_SLOPE_POS</value>
  1103. </param>
  1104. <param>
  1105. <key>tr_tag</key>
  1106. <value>""</value>
  1107. </param>
  1108. <param>
  1109. <key>type</key>
  1110. <value>complex</value>
  1111. </param>
  1112. <param>
  1113. <key>update_time</key>
  1114. <value>0.10</value>
  1115. </param>
  1116. <param>
  1117. <key>xmax</key>
  1118. <value>2</value>
  1119. </param>
  1120. <param>
  1121. <key>xmin</key>
  1122. <value>-2</value>
  1123. </param>
  1124. <param>
  1125. <key>ymax</key>
  1126. <value>2</value>
  1127. </param>
  1128. <param>
  1129. <key>ymin</key>
  1130. <value>-2</value>
  1131. </param>
  1132. </block>
  1133. <connection>
  1134. <source_block_id>analog_random_source_x_0</source_block_id>
  1135. <sink_block_id>blocks_stream_to_tagged_stream_0</sink_block_id>
  1136. <source_key>0</source_key>
  1137. <sink_key>0</sink_key>
  1138. </connection>
  1139. <connection>
  1140. <source_block_id>blocks_stream_to_tagged_stream_0</source_block_id>
  1141. <sink_block_id>digital_ofdm_tx_0</sink_block_id>
  1142. <source_key>0</source_key>
  1143. <sink_key>0</sink_key>
  1144. </connection>
  1145. <connection>
  1146. <source_block_id>blocks_vector_to_stream_0_0</source_block_id>
  1147. <sink_block_id>qtgui_const_sink_x_0_0_1</sink_block_id>
  1148. <source_key>0</source_key>
  1149. <sink_key>0</sink_key>
  1150. </connection>
  1151. <connection>
  1152. <source_block_id>digital_ofdm_tx_0</source_block_id>
  1153. <sink_block_id>dtv_dvbt_ofdm_sym_acquisition_1</sink_block_id>
  1154. <source_key>0</source_key>
  1155. <sink_key>0</sink_key>
  1156. </connection>
  1157. <connection>
  1158. <source_block_id>dtv_dvbt_ofdm_sym_acquisition_1</source_block_id>
  1159. <sink_block_id>fft_vxx_0_0</sink_block_id>
  1160. <source_key>0</source_key>
  1161. <sink_key>0</sink_key>
  1162. </connection>
  1163. <connection>
  1164. <source_block_id>fft_vxx_0_0</source_block_id>
  1165. <sink_block_id>blocks_vector_to_stream_0_0</sink_block_id>
  1166. <source_key>0</source_key>
  1167. <sink_key>0</sink_key>
  1168. </connection>
  1169. </flow_graph>
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