How new technologies affect the art of contesting

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This presentation was hold by Tobias, DH1TW during the Contest University 2010 in Friedrichshafen, Germany

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How new technologies affect the art of contesting

  1. 1. How new technologiesaffectthe art of contesting<br />Tobias Wellnitz, DH1TW Friedrichshafen<br />Tobias@dh1tw.de June 2010<br />
  2. 2. Agenda<br />Comparison (1970 vs 2010)<br />InformationHandling<br />Software Defined Radio<br />PersonalizedUser Interfaces<br />Conclusions<br />
  3. 3. Contesting: 1970 vs. 2010<br />
  4. 4. Let‘s have a look into the past<br />CW<br />Skimmer<br />SDR<br />Band-scopes<br />Station<br />Automatization<br />Stack-<br />Matches<br />PacketRadio<br />Transistor PA TRX<br />CAT<br />PCLogging<br />2000<br />1990<br />1980<br />2010<br />
  5. 5. Information Sources<br />1970<br /><ul><li>Radio (Audio)
  6. 6. Logbook</li></li></ul><li>Information Sources<br />2010<br /><ul><li>Radio 1 (Audio + B-Scope)
  7. 7. Radio 2 (Audio + B-Scope)
  8. 8. Log
  9. 9. DX-Cluster(s)
  10. 10. own CW-Skimmer(s)
  11. 11. Reverse Beacon Network
  12. 12. Propagation Models
  13. 13. …</li></li></ul><li>Information Sources - Comparison<br />2010<br />1970<br /><ul><li>Radio (Audio)
  14. 14. Logbook
  15. 15. Radio 1 (Audio + B-Scope)
  16. 16. Radio 2 (Audio + B-Scope)
  17. 17. Log
  18. 18. DX-Cluster(s)
  19. 19. own CW-Skimmer(s)
  20. 20. Reverse Beacon Network
  21. 21. Propagation Models / Charts
  22. 22. …</li></li></ul><li>Information Quality vs Quantity<br />Increasing Quantity<br />Decreasing Quality<br />Wrong Spots<br />CW-Skimmer<br />Internet DX-Cluster<br />Fake Spots<br />Busted Spots<br />Reverse Beacon Network<br />local spots<br />situational unimport spots<br />
  23. 23. Lets play a game!<br />50:50<br />Amount of RBS / Skimmer Spots in CQ WPX CW 2010?<br />A: 12000<br />C: 293000<br />D: 850000<br />B: 68000<br />
  24. 24. Lets play a game!<br />50:50<br />Amount of RBS / Skimmer Spots in CQ WPX CW 2010?<br />A: 12000<br />C: 293000<br />D: 850000<br />B: 68000<br />
  25. 25. Some more numbers on WPX CW 2010<br />41 CW-Skimmers<br />in 21 Countries<br />DX-Cluster<br />RBN<br />Total Spots<br />~39700<br />~837900<br />Callsigns<br />8240<br />21300<br />WPX Multis<br />2118<br />2942<br />
  26. 26. So what? Is it….<br />Good or Bad?<br />
  27. 27. So what? Is it….<br />Good or Bad?<br />It is different!<br />New information handling strategies needed!<br />
  28. 28. Information Fusion<br />Algorithm<br />
  29. 29. Algorithm Example<br />Check Master.dta<br />No<br />Yes<br />Check QRZ.com<br />Yes<br />No<br />Trash<br />Spot<br />Sent to WinTest<br />
  30. 30. Single Source Concept<br />also applies to radio handing!<br /><ul><li> Avoid duplicate information! (e.g. Frequency)
  31. 31. SDRs improve station integration!</li></li></ul><li>The classic Radio concept<br />Signal<br />Processing<br />User Interface<br />RF<br />Operator<br />Radio<br />
  32. 32. The SDR concept<br />Signal<br />Processing<br />User Interface<br />RF<br />Independency of components!<br />
  33. 33. Example: Softrock Receiver & PC<br />QSD (e.g. Softrock)<br />IQ (stereo)<br />0…96kHz signal<br />PC with Soundcard &<br />SDR Software (eg Winrad)<br />
  34. 34. Example: Softrock Receiver & PC<br />Signal<br />Processing<br />User Interface<br />RF<br />Operator<br />PC with Soundcard<br />& SDR Software<br />QSD (e.g. Softrock)<br />
  35. 35. Why haven‘t SDRs taken off yet?<br />Advantages<br />Great RF performance<br />Great experimentation plattform<br />Very flexible<br />Inexpensive<br />But…<br />PC needed<br />
  36. 36. How future solutions will look like<br />Headphone<br />DSP & <br />Interface<br />RF Part (SDR)<br />Control<br />Data Processing<br />
  37. 37. How future solutions will look like<br />User Interface<br />RF<br />Signal<br />Processing<br />Headphone<br />User Interface<br />RF Part (SDR)<br />DSP & <br />Interface<br />Control<br />Take aways:<br /><ul><li>Real-Time Classification
  38. 38. Personalized User Interface</li></ul>Data<br />Processing<br />
  39. 39. Conclusions<br /><ul><li>Information Handling is becomming more and more important
  40. 40. SDR need to become reliable & foolproof</li></ul>-> Real-Time / Non-Real-Time classification<br /><ul><li>SDR provide the freedom to design your customRadio / Station User Interface</li></li></ul><li>Follow me!<br />Twitter:<br />DH1TW<br />Website:<br />www.dh1tw.de<br />
  41. 41.
  42. 42. Backup Slides<br />
  43. 43. Example #2 Dutch WebSDR<br />PC with Browser<br />WebSDR Server<br />Direct Sampling Receiver<br />with Direct Down Converters<br />PC with Browser<br />Internet<br />IQ Signals (Ethernet)<br />7 Bands simultaneously <br />PC with Browser<br />
  44. 44. Example #2 Dutch WebSDR<br />User Interface<br />PC with Browser<br />Operator<br />User Interface<br />Signal<br />Processing<br />RF<br />Operator<br />PC with Browser<br />Internet<br />WebSDR Server<br />Direct Sampling <br />Receiver<br />User Interface<br />PC with Browser<br />Operator<br />

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