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THE PROPNET PROGRAM

WHAT IS PROPNET?. PropNET is an ad-hoc wireless network of digital Amateur Radio enthusiasts that provides a mechanism for real-time propagation discovery and keyboard-to-keyboard messaging with an Internet component that displays worldwide data on demand! . PROPNET PROGRAM. INTRODUCED IN 1998 BY EV TUPIS, W2EV AT THE TAPR/ARRL CONFABPROMOTED IN QST MAY 2001IN CONTINUOUS OPERATION SINCE ITS ORIGINATION.

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THE PROPNET PROGRAM

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    1. THE PROPNET PROGRAM

    3. PROPNET PROGRAM INTRODUCED IN 1998 BY EV TUPIS, W2EV AT THE TAPR/ARRL CONFAB PROMOTED IN QST MAY 2001 IN CONTINUOUS OPERATION SINCE ITS ORIGINATION

    4. WHY IS PROPNET DIFFERENT FROM OTHER BEACON PROGRAMS?

    5. ACTIVE STATION TRANSMITS IDENTIFICATION, LOCATION, POWER AND ANTENNA INFORMATION 8 TIMES PER HOUR CONTINOUSLY RECEIVES OTHER PARTICIPANTS TRANSMISSIONS, LOGS AND REPORTS THEM TO CENTRAL DATA BANK VIA INTERNET

    6. TYPICAL ACTIVE STATION MOST STATIONS USING LESS THAN 15 WATTS PSK^31 MODE MOST STATIONS USING SIMPLE VERTICAL ANTENNAS

    7. PROPNET FEATURES PROGRAM HAS BEEN ACTIVE FOR OVER 8 YEARS OPERATES WITH RELIABLE, EASY TO SETUP SOFTWARE PRIMARY FOCUS IS ON 10 AND 6 METERS

    8. PROPNET FEATURES HOWEVER ACTIVITY ALSO AT TIMES ON 20, 17, 15 AND 2 METERS FOR PROJECTS OF SPECIAL INTEREST BOTH CRC (CYCLICAL REDUNDANCY CHECK) AND PARTIAL CAPTURES ARE RECORDED EACH DAY STATIONS ACTIVE ACROSS THE U.S. AND CANADA WITH ?LURKERS? IN EUROPE, AUSTRALIA AND SOUTH AMERICA AT VARIOUS TIMES

    9. REPORTING AND ARCHIVING CONTINUOUS, REAL TIME REPORTING VIA LIVEX AND FINDU AUTOMATIC END OF DAY SUMMARY SENT TO INTERNET VIA PROPNET CATCHES REPORTS

    10. TYPICAL MID AFTERNOON PROPNET MAP 10 METERS

    11. RECORDED DATA ACCOMPANIES MAP

    12. END OF DAY PROPNET STATION CATCH REPORT

    13. NEAT FEATURE FINDU OPTION DISPLAYS FORMATION OF PROPAGATION PATHS HOUR TO HOUR OVER 24 HOUR PERIOD THIS GIVES INSIGHT INTO THE TYPE OF PROPAGATION INVOLVED AND IS PREDICTIVE OF THE NEXT DAY?S OPPORTUNITIES

    14. TO PARTICIPATE NEED A LOW POWER RIG (10 METERS OR 6 METERS) WHICH YOU ARE WILLING TO DEDICATE TO THE PROGRAM NEED THE USUAL PSK^31 HOOKUP TO A COMPUTER (OLD IRON WORKS FINE)

    15. TO PARTICIPATE DOWNLOAD PROPNET SOFTWARE FROM N7YG HOME PAGE FILL OUT SIMPLE SETUP SCREENS JOIN PROPNET YAHOO GROUP

    16. PROPNET PROJECTS PROPNET IS NOT JUST AN ?IS THE BAND OPEN?? PROGRAM THE GROUP ACCUMULATES DATA FOR SPECIAL PROJECTS RESULTS HAVE BEEN PRESENTED AT THE TAPR/ARRL CONFERENCES

    17. AS EXAMPLE SUNSPOT CYCLE PROJECT GROUP IS ACCUMULATING A RECORD OF ?TRANSCONTINENTAL? PROPAGATION ON 10 METERS DURING THE CURRENT BOTTOM OF THE SUNSPOT CYCLE - TO COMPARE WITH OTHER PERIODS IN CYCLE

    18. SUNSPOT CYCLE PROJECT CONTRARY TO CONVENTIONAL WISDOM, COMMUNICATIONS OVER 500 MILE TO 2000 MILE PATHS ON 10 METERS REMAIN SURPRISINGLY COMMON AS WE PASS THROUGH THE BOTTOM OF THE CURRENT CYCLE

    19. W3NRG REPORTED BY PROPNET STATIONS DAYS W3NRG REPORTED BY PROPNET STATIONS ? CRC CONFIRMED

    20. KA5DWI SUMMER 2006

    21. KA5DWI SUMMER 2005

    22. VALUE OF THE DATA BRINGS INTO SHARP CONTRAST THE DIFFERENCES BETWEEN F ? LAYER PROPAGATION - WHICH IS STRONGLY DEPENDENT UPON THE SUN SPOT CYCLE AND THE E ? LAYER PROPAGATION WHICH CAN OCCUR THROUGHOUT THAT CYCLE

    23. AS EXAMPLE KF6XA>W3NRG PROJECT THROUGH THEIR PARTICIPATION IN PROPNET TWO ?LOCAL? STATIONS HAVE REPLICATED AN UNUSUAL PROPAGATON PATH FIRST IDENTIFIED BY THE NAVY DURING WORLD WAR II

    24. AS EXAMPLE KF6XA>W3NRG PROJECT DATA COLLECTION BEGAN IN 2001 USING PSK31 MODE ON 28.131 MH KF6XA IS LOCATED IN MURRIETA, CA W3NRG IS LOCATED IN CORONADO, CA

    25. KF6XA>W3NRG PROJECT DISTANCE BETWEEN STATIONS 63 MI KF6XA AT 1400 FT ASL W3NRG AT SEA LEVEL USED BOTH UI-VIEW AND N7YG DECODING SOFTWARE

    26. KF6XA>W3NRG PROJECT BOTH STATIONS USE RADIO SHACK HTX-10 TRANSCEIVERS AT <10 WATT TRANSMITTER POWER LEVEL BOTH STATIONS USE VERTICAL LOW GAIN ANTENNAS BOTH STATIONS TRANSMIT 8 BEACON SIGNALS PER HOUR

    27. THE PATH

    28. THE PATH TOPO PROFILE

    29. SO WHAT IS THE ?BIG DEAL? IT IS NOT UNHEARD OF TO HAVE A 10 METER CONTACT OVER 63 MILES THE INTRIGUING ASPECT OF THE KF6XA>W3NRG EXPERIMENT IS CONSISTANCY

    30. KF6XA>W3NRG PROJECT HUNDREDS OF THOUSANDS OF FULL AND PARTIAL PSK^31 CAPTURES WERE ARCHIVED CONCLUSION COMMUNICATIONS WERE POSSIBLE OVER THIS PATH AT LEAST 80% OF THE TIME OVER THE FOUR YEARS THAT DATA WAS COLLECTED

    31. VERIFICATION OF WWII NAVY STUDIES AFTER WE FIRST REPORTED THE PATH IN QST, JUNE 2002, BOB GONSET, W6VR BROUGHT TO OUR ATTENTION A STUDY BY NAVY RESEARCHERS DURING WWII THEY FOUND THE SAME ANOMOLY OVER APPROXIMATELY THE SAME PATH!!

    32. SUGGESTED MODEL THE AUTHOR CAUTIONS THAT HE IS BY NO MEANS A RADIO PROPAGATION EXPERT. THE MODEL WE USE IN TRYING TO VISUALIZE THE PROPAGATION WE SEE ON THE PATH WAS SUGGESTED BY THE WWII EXPERIMENTERS

    33. SUGGESTED MODEL THERE IS A COLD SURFACE LAYER OVER SAN DIEGO IN CONSEQUENCE OF THE WATERS OF THE PACIFIC THERE IS A WARM UPPER LAYER IN CONSEQUENCE OF THE HEATING OF THE SUN PROPAGATION RESULTS FROM REFRACTION THROUGH THAT BOUNDARY

    34. SUGGESTED MODEL

    35. VALUE OF THE DATA DATA PROVIDES VISBILITY ON THE CHARACTERISTICS OF THE PATH OVER THE DAILY CYCLE IN VARIOUS SEASONS OF THE YEAR PATH IS PROBABLY A VERY SPECIAL CASE OF ?TROPOSPHERIC REFRACTION?

    36. IN SUMMARY THE PROPNET PROGRAM HAS INTRODUCED A NUMBER OF HAMS TO THE PSK^31 DIGITAL MODES THE PROGRAM OFFERS ?NEAT? VISUAL REPORTS ON PROPAGATION CONDITIONS THE DATA IS ARCHIVED FOR FUTURE RESEARCH

    37. IN SUMMARY PARTICIPATION IN THE PROGRAM HAS RESULTED IN NEW FRIENDS AND CONTACTS THE OPPORTUNITY FOR ?SCIENTIFIC? OBSERVATIONS FROM THE DATA GROWS AS THE ARCHIVE GROWS HOUR BY HOUR, DAY BY DAY AND YEAR BY YEAR

    38. IN SUMMARY THE PROPNET COMBINATION OF THE COMPUTER, THE INTERNET AND QRP RF, ALONG WITH A CURIOSITY ABOUT PROPAGATION TENDS TO APPEAL TO HAMS WHO LIKE TO UTILIZE THE HOBBY FOR MORE THAN JUST THE ORDINARY COMMUNICATIONS ACTIVITIES

    39. HOW MIGHT THE EL CAJON CLUB HELP PROPNET NEEDS ONE OR TWO WELL LOCATED 6 METER STATIONS IN THE SOUTHWEST A STRONG SOUTHWEST 6 METER ?ANCHOR? WOULD BE VERY WELCOME FOR MID WEST AND EAST COAST PROPAGATION REPORTING

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