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WHAT’S NEW ?

WHAT’S NEW ?. AL HISLOP Electrical Engineer CARE July 1, 2003. TWO MAJOR CHANGES SINCE 1999 DENIAL. DIRECTIONAL ANTENNA PATTERNS LOWER TOWER. LCG RF REPORT SAYS RF INCREASES TO SOUTH AND EAST. RF EMISSIONS STUDY CONCLUSIONS, LCG Ex. 17, CARE Ex. 80, Pink Divider. RF LEVEL INCREASES.

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WHAT’S NEW ?

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  1. WHAT’S NEW ? AL HISLOP Electrical Engineer CARE July 1, 2003

  2. TWO MAJOR CHANGESSINCE 1999 DENIAL • DIRECTIONAL ANTENNA PATTERNS • LOWER TOWER

  3. LCG RF REPORTSAYS RF INCREASESTO SOUTH AND EAST RF EMISSIONS STUDY CONCLUSIONS, LCG Ex. 17, CARE Ex. 80, Pink Divider

  4. RF LEVEL INCREASES WHY? • RF ERP INCREASED BY 9 MEGAWATTS • ANTENNA PATTERN MAXIMUM TO SOUTH See LCG Ex. 17 • ANTENNAS NOT ABOVE POPULATED AREA

  5. LCG Lookout Mt.ERP Increase LCG ERP on Lookout • Proposal = 9,732,000 watts • Present = 732,000 watts

  6. JEFFERSON COUNTY TOWER SITING REQUIREMENTS TOWER LOW WITH RESPECT TO RIDGELINE ANTENNAS LOCATED ABOVE POPULATED AREAS THE LCG SITE CANNOT COMPLY

  7. NEGATIVES OF LOW TOWER DESIGN • LOW TOWER = INCREASED RADIATION IN COMMUNITY • Antennas mounted length of tower

  8. ANTENNAS POINT DIRECTLY AT RESIDENCESMY HOME LIKE ENRON AND WORLDCOM

  9. RF LEVELS EXPRESSED AS µW/cm2 • USE OF % MPE IGNORES INTERFERENCE POTENTIAL • USE OF % MPE CAN MASK RF INCREASES

  10. ONLY 15.2 μW 3.3µW 8.4µW 4.0µW 6.5µW

  11. DISCONNECT FROM TRUTH • LCG SAYS RF LEVELS WILL GO DOWN JEFFCO’S CONSULTANT MR. HART CONFIRMS RF LEVELS WILL INCREASE OVER WIDE AREA • LCG CLAIMS QUIET ZONE EXEMPTION NO DTV QUIET ZONE EXEMPTION EXISTS

  12. QUIET ZONE ISSUE CAN AFFECT LOCAL RF LEVELS • BY LAW, LCG CANNOT USE PROPOSED ANTENNAPATTERNS • LCG MAY ROTATE PATTERNS 90 DEGREES • LOCAL LEVELS TO WEST WOULD INCREASE

  13. SOLUTION TO QUIET ZONE PROBLEM: ROTATE PATTERN LOW FIELD TO WEST LOW FIELD TO NORTH HIGH FIELD TO WEST

  14. ANTENNA PATTERNS NOT IN ODP • IF APPROVED, JEFFCO HAS NO CONTROL OF ANTENNA PATTERNS • NO GUARANTEE OF REDUCED RF TO WEST • RF INCREASES MAY BE EVEN HIGHER THAN CALCULATED IN POPULATED AREAS • LCG HAS HAD YEARS TO RESOLVE

  15. COSMIC BACKGROUND RADIATION“BREAKTHROUGH IN UNDERSTANDING THE ORIGINS OF THE UNIVERSE”FEB 2003 NASA RELEASE MAP SPACECRAFT

  16. MAP OF THE UNIVERSE& INTERFERENCE • SENSITIVE RECEIVER COMPONENTS MADE • ON LOOKOUT MOUNTAIN • SOME OF THE MOST SENSITIVE RECEIVERS EVER MADE. • TECHNOLOGY ADVANCES IN THE LAST 10 YEARS MADE THESE RECEIVERS POSSIBLE. • WHAT ADVANCES IN THE NEXT 50 YEARS?

  17. MITIGATION • SPENT $40,000 FOR SHIELDING • NOT DONE YET

  18. INTERFERENCE EXAMPLE:MOUNTSFIELD AVE. • ALREADY EXPERIENCING HIGH INTERFERENCE PROBLEMS • RF POWER DENSITY FROM LCG MEMBERS ALONE WOULD DOUBLE FROM 7.5 TO 15.2 μW/cm2

  19. MOUNTSFIELD LCG LEVELCOMPARED TO BLANKETINGINTERFERENCE LEVEL 180 x BLANKETING MOUNTSFIELD

  20. INTERFERENCE • TLUP : ANTENNAS ABOVE RESIDENTIAL AREAS TO MINIMIZE INTERFERENCE. • LCG INTERFERENCE REMEDIATION PLAN • ONLY A FEW DEVICES • ONLY ONE YEAR.

  21. LCG INTERFERENCE PLANLIMITED IN SCOPE AND TIME INTERFERENCE NOT COVERED INTERFERENCE COVERED

  22. FCC Ignores 4 CARE Petitions for Relief from Interference March 9, 1999 Ex. 35 October 17, 2000 Ex. 36 August 23, 2002 Ex. 89 September 20, 2002 Ex. 89 Result-No help from FCC

  23. PROPER LOCATION AWAY FROM PEOPLE AND BUSINESSES WOULD MINIMIZE INTERFERENCE FOR ALL DEVICES ALL THE TIME LOCATE TOWER AWAY FROM PEOPLE Why a one year plan for a 50 or 100 year project?

  24. NO SUBSTITUTE FOR PROPER SITING • HIGH POWER BROADCAST FACILITIES AWAY FROM POPULATED AREAS. • DOES NOT CONFORM WITH RESIDENTIAL INTERFERENCE POLICIES.

  25. ALTERNATE SITES EXIST • SQUAW MOUNTAIN RECEPTION TESTS: EXCELLENT RESULTS • SQUAW MOUNTAIN ALREADY ZONED FOR TV BROADCAST

  26. LCG’S CONCERNS ABOUT SQUAW MOUNTAIN • “LOST VIEWERS” • INADEQUATE SPACE “VERTICAL REAL ESTATE”

  27. HOW MUCH SIGNAL DO YOU NEED? WHAT THE FCC SAYS YOU NEED WHAT THE FCC SAYS YOU NEED IF YOU DON’T HAVE THIS MUCH SIGNAL, LCG SAYS YOU ARE A “ LOST VIEWER ”

  28. SPACE REQUIREMENTS • SQUAW MOUNTAIN ZONED FOR THREE 200 FOOT TOWERS • AT MOST 3 ANTENNAS NEEDED TO ACCOMMODATE LCG DIGITAL • ANALOG REMAINS UNTIL PHASEOUT

  29. DTV SITES ON PLAINS • DTV CHANNEL 30 FROM CHEYENNE WYOMING RECEIVED IN LITTLETON (OVER 100 MILES AWAY) • ANTENNA 530 FEET ABOVE AVERAGE TERRAIN • TRANSMITTING LESS THAN 10% OF MAXIMUM ALLOWED POWER

  30. DTV SITES ON PLAINS • KWHD CHANNEL 46 DTV CASTLEROCK “ON THE AIR” • ANTENNA 590 FEET ABOVE AVERAGE TERRAIN

  31. REAL REASON LCGCHOSE LOOKOUT MOUNTAIN LCG LETTER TO JEFFCO PLANNING: March 6, 1998 “Fourth, and perhaps most importantly, Lake Cedar Group controls a large assemblage of property on Lookout Mountain.”

  32. CONCLUSION • THE LCG PROPOSAL • INCREASES RF LEVELS OVER A LARGE POPULATED AREA • DOES NOT MEET INTERFERENCE POLICY • STAFF AND JEFFCO RF CONSULTANT, MR. HART, AGREE: VIABLE ALTERNATE SITES EXIST

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