Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

How new technologies affect the art of contesting

15,048 views

Published on

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

Published in: Technology
  • Be the first to comment

  • Be the first to like this

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 />

×