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How new technologies affect the art of contesting
- 1. How new technologiesaffectthe art of contesting Tobias Wellnitz, DH1TW Friedrichshafen Tobias@dh1tw.de June 2010
- 2. Agenda Comparison (1970 vs 2010) InformationHandling Software Defined Radio PersonalizedUser Interfaces Conclusions
- 3. Contesting: 1970 vs. 2010
- 4. Let‘s have a look into the past CW Skimmer SDR Band-scopes Station Automatization Stack- Matches PacketRadio Transistor PA TRX CAT PCLogging 2000 1990 1980 2010
- 7. Radio 2 (Audio + B-Scope)
- 8. Log
- 14. Logbook
- 15. Radio 1 (Audio + B-Scope)
- 16. Radio 2 (Audio + B-Scope)
- 17. Log
- 18. DX-Cluster(s)
- 21. Propagation Models / Charts
- 23. Lets play a game! 50:50 Amount of RBS / Skimmer Spots in CQ WPX CW 2010? A: 12000 C: 293000 D: 850000 B: 68000
- 24. Lets play a game! 50:50 Amount of RBS / Skimmer Spots in CQ WPX CW 2010? A: 12000 C: 293000 D: 850000 B: 68000
- 25. Some more numbers on WPX CW 2010 41 CW-Skimmers in 21 Countries DX-Cluster RBN Total Spots ~39700 ~837900 Callsigns 8240 21300 WPX Multis 2118 2942
- 26. So what? Is it…. Good or Bad?
- 27. So what? Is it…. Good or Bad? It is different! New information handling strategies needed!
- 29. Algorithm Example Check Master.dta No Yes Check QRZ.com Yes No Trash Spot Sent to WinTest
- 32. The SDR concept Signal Processing User Interface RF Independency of components!
- 33. Example: Softrock Receiver & PC QSD (e.g. Softrock) IQ (stereo) 0…96kHz signal PC with Soundcard & SDR Software (eg Winrad)
- 34. Example: Softrock Receiver & PC Signal Processing User Interface RF Operator PC with Soundcard & SDR Software QSD (e.g. Softrock)
- 35. Why haven‘t SDRs taken off yet? Advantages Great RF performance Great experimentation plattform Very flexible Inexpensive But… PC needed
- 36. How future solutions will look like Headphone DSP & Interface RF Part (SDR) Control Data Processing
- 38. Personalized User InterfaceData Processing
- 42. Backup Slides
- 43. Example #2 Dutch WebSDR PC with Browser WebSDR Server Direct Sampling Receiver with Direct Down Converters PC with Browser Internet IQ Signals (Ethernet) 7 Bands simultaneously PC with Browser
- 44. Example #2 Dutch WebSDR User Interface PC with Browser Operator User Interface Signal Processing RF Operator PC with Browser Internet WebSDR Server Direct Sampling Receiver User Interface PC with Browser Operator