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

WHAT’S WHAT’S NEW ?NEW ?

AL HISLOPAL HISLOP

Electrical EngineerElectrical Engineer

CARECARE

July 1, 2003July 1, 2003

TWO MAJOR CHANGESTWO MAJOR CHANGESSINCE 1999 DENIALSINCE 1999 DENIAL

DIRECTIONAL ANTENNA PATTERNSDIRECTIONAL ANTENNA PATTERNS

LOWER TOWERLOWER TOWER

LCG RF REPORTLCG RF REPORTSAYS RF SAYS RF INCREASESINCREASES

TO SOUTH AND TO SOUTH AND EASTEAST

RF EMISSIONS STUDY CONCLUSIONS, RF EMISSIONS STUDY CONCLUSIONS, LCG Ex. 17, CARE Ex. 80, Pink DividerLCG Ex. 17, CARE Ex. 80, Pink Divider

RF LEVEL RF LEVEL INCREASESINCREASES

WHY?WHY?

RF ERP INCREASED BY 9 MEGAWATTSRF ERP INCREASED BY 9 MEGAWATTS

ANTENNA PATTERN MAXIMUM TO SOUTHANTENNA PATTERN MAXIMUM TO SOUTHSee LCG Ex. 17See LCG Ex. 17

ANTENNAS NOT ABOVE POPULATED ANTENNAS NOT ABOVE POPULATED AREAAREA

LCG Lookout Mt.LCG Lookout Mt.ERP IncreaseERP Increase

LCG ERP on LookoutLCG ERP on Lookout Proposal = Proposal =

9,732,000 watts9,732,000 watts

Present = Present = 732,000 watts732,000 watts

0

2000

4000

6000

8000

10000

12000

Present

Proposed

ERP(kW)

JEFFERSON COUNTY JEFFERSON COUNTY TOWER SITING TOWER SITING REQUIREMENTSREQUIREMENTS

TOWER LOW WITH RESPECT TO RIDGELINETOWER LOW WITH RESPECT TO RIDGELINE

ANTENNAS LOCATED ABOVE POPULATED ANTENNAS LOCATED ABOVE POPULATED AREASAREAS

THE LCG SITE CANNOT COMPLY

NEGATIVES OF LOW TOWER NEGATIVES OF LOW TOWER DESIGNDESIGN

LOW TOWER = INCREASED LOW TOWER = INCREASED RADIATION IN COMMUNITYRADIATION IN COMMUNITY

Antennas mounted length of towerAntennas mounted length of tower

ANTENNAS POINT DIRECTLY AT ANTENNAS POINT DIRECTLY AT RESIDENCESRESIDENCES

MY MY HOMEHOME

LIKE ENRON AND WORLDCOM

RF LEVELSRF LEVELS EXPRESSED AS µW/cm EXPRESSED AS µW/cm22

USE OF % MPE IGNORES USE OF % MPE IGNORES INTERFERENCE POTENTIALINTERFERENCE POTENTIAL

USE OF % MPE CAN MASK RF USE OF % MPE CAN MASK RF INCREASESINCREASES

ONLY

15.2 μW

8.4µW

6.5µW4.0µW

3.3µW

DISCONNECT FROM DISCONNECT FROM TRUTHTRUTH

LCG SAYS RF LEVELS WILL GO DOWNLCG SAYS RF LEVELS WILL GO DOWN

JEFFCO’S CONSULTANT MR. HART JEFFCO’S CONSULTANT MR. HART CONFIRMS RF LEVELS WILL INCREASE CONFIRMS RF LEVELS WILL INCREASE OVER WIDE AREAOVER WIDE AREA

LCG CLAIMS QUIET ZONE EXEMPTIONLCG CLAIMS QUIET ZONE EXEMPTION

NO DTV QUIET ZONE EXEMPTION NO DTV QUIET ZONE EXEMPTION EXISTSEXISTS

QUIET ZONE ISSUE CAN QUIET ZONE ISSUE CAN AFFECT LOCAL RF AFFECT LOCAL RF

LEVELSLEVELS BY LAW, LCG CANNOT USE PROPOSEDBY LAW, LCG CANNOT USE PROPOSED

ANTENNAPATTERNSANTENNAPATTERNS

LCG MAY ROTATE PATTERNS 90 LCG MAY ROTATE PATTERNS 90 DEGREESDEGREES

LOCAL LEVELS TO WEST WOULD LOCAL LEVELS TO WEST WOULD INCREASEINCREASE

SOLUTION TO QUIET ZONE SOLUTION TO QUIET ZONE PROBLEM: ROTATE PROBLEM: ROTATE

PATTERNPATTERNLOW FIELD TO NORTHHIGH FIELD TO WEST

LOW FIELD TO WEST

ANTENNA PATTERNSANTENNA PATTERNS NOT IN ODP NOT IN ODP

IF APPROVED, JEFFCO HAS NO CONTROL OF IF APPROVED, JEFFCO HAS NO CONTROL OF ANTENNA PATTERNSANTENNA PATTERNS

NO GUARANTEE OF REDUCED RF TO WESTNO GUARANTEE OF REDUCED RF TO WEST

RF INCREASES MAY BE EVEN RF INCREASES MAY BE EVEN HIGHER HIGHER THAN THAN CALCULATED IN POPULATED AREASCALCULATED IN POPULATED AREAS

LCG HAS HAD YEARS TO RESOLVELCG HAS HAD YEARS TO RESOLVE

COSMIC BACKGROUND RADIATIONCOSMIC BACKGROUND RADIATION

““BREAKTHROUGH IN UNDERSTANDING BREAKTHROUGH IN UNDERSTANDING THE ORIGINS OF THE UNIVERSE”THE ORIGINS OF THE UNIVERSE”

FEB 2003 NASA RELEASE FEB 2003 NASA RELEASE MAP SPACECRAFTMAP SPACECRAFT

MAP OF THE UNIVERSEMAP OF THE UNIVERSE& INTERFERENCE& INTERFERENCE

SENSITIVE RECEIVER COMPONENTS MADESENSITIVE RECEIVER COMPONENTS MADE ON LOOKOUT MOUNTAINON LOOKOUT MOUNTAIN SOME OF THE MOST SENSITIVE RECEIVERS EVER MADE.SOME OF THE MOST SENSITIVE RECEIVERS EVER MADE.

TECHNOLOGY ADVANCES IN THE LAST 10 YEARS TECHNOLOGY ADVANCES IN THE LAST 10 YEARS MADE THESE RECEIVERS POSSIBLE.MADE THESE RECEIVERS POSSIBLE.

WHAT ADVANCES IN THE NEXT 50 YEARS?WHAT ADVANCES IN THE NEXT 50 YEARS?

MITIGATIONMITIGATION

SPENT $40,000 FOR SHIELDINGSPENT $40,000 FOR SHIELDING

NOT DONE YETNOT DONE YET

INTERFERENCE INTERFERENCE EXAMPLE:EXAMPLE:

MOUNTSFIELD AVE.MOUNTSFIELD AVE.

ALREADY EXPERIENCING HIGH ALREADY EXPERIENCING HIGH INTERFERENCE PROBLEMSINTERFERENCE PROBLEMS

RF POWER DENSITY FROM LCG RF POWER DENSITY FROM LCG MEMBERS MEMBERS ALONEALONE WOULD DOUBLE WOULD DOUBLE FROM 7.5 TO 15.2 FROM 7.5 TO 15.2 μμW/cmW/cm22

MOUNTSFIELD LCG LEVELMOUNTSFIELD LCG LEVELCOMPARED TO BLANKETINGCOMPARED TO BLANKETING

INTERFERENCE LEVELINTERFERENCE LEVEL

0.084

15.2

0

2

4

6

8

10

12

14

16

BLANKETING

uW/ cm2

180 x BLANKETING

MOUNTSFIELD

INTERFERENCEINTERFERENCE

TLUP : ANTENNAS TLUP : ANTENNAS ABOVEABOVE RESIDENTIAL AREAS TO RESIDENTIAL AREAS TO MINIMIZE INTERFERENCE. MINIMIZE INTERFERENCE.

LCG INTERFERENCE REMEDIATION PLANLCG INTERFERENCE REMEDIATION PLAN

ONLY A FEW DEVICESONLY A FEW DEVICES

ONLY ONE YEAR.ONLY ONE YEAR.

LCG INTERFERENCE PLANLCG INTERFERENCE PLAN

LIMITED IN SCOPE AND TIMELIMITED IN SCOPE AND TIME

0

10

20

30

40

50

60

70

80

90

100

YEARS

% D

EV

ICE

S C

OV

ER

ED

INTERFERENCE NOT COVERED

INTERFERENCE COVERED

FCC Ignores 4 CARE Petitions FCC Ignores 4 CARE Petitions for Relief from Interferencefor Relief from Interference

March 9, 1999 March 9, 1999 Ex. 35Ex. 35

October 17, 2000 October 17, 2000 Ex. 36Ex. 36

August 23, 2002August 23, 2002 Ex. 89Ex. 89

September 20, 2002 September 20, 2002 Ex. 89Ex. 89

Result-No help from FCC Result-No help from FCC

LOCATE TOWER AWAY LOCATE TOWER AWAY FROM PEOPLEFROM PEOPLE

PROPER LOCATION AWAY FROM PEOPLE AND PROPER LOCATION AWAY FROM PEOPLE AND BUSINESSES BUSINESSES

WOULD MINIMIZE INTERFERENCE WOULD MINIMIZE INTERFERENCE FOR ALL DEVICES FOR ALL DEVICES ALL THE TIMEALL THE TIME

Why a one year plan for a 50 or 100 year project?

NO SUBSTITUTE FOR PROPER NO SUBSTITUTE FOR PROPER SITINGSITING

HIGH POWER BROADCAST FACILITIES HIGH POWER BROADCAST FACILITIES AWAY FROM POPULATED AREAS.AWAY FROM POPULATED AREAS.

DOES NOT CONFORM WITH DOES NOT CONFORM WITH RESIDENTIAL INTERFERENCE RESIDENTIAL INTERFERENCE POLICIES.POLICIES.

ALTERNATE SITES EXISTALTERNATE SITES EXIST

SQUAW MOUNTAIN RECEPTION TESTS:SQUAW MOUNTAIN RECEPTION TESTS:EXCELLENT RESULTSEXCELLENT RESULTS

SQUAW MOUNTAIN ALREADY ZONED SQUAW MOUNTAIN ALREADY ZONED FOR TV BROADCASTFOR TV BROADCAST

LCG’S CONCERNS ABOUT LCG’S CONCERNS ABOUT SQUAW MOUNTAINSQUAW MOUNTAIN

““LOST VIEWERS”LOST VIEWERS”

INADEQUATE SPACEINADEQUATE SPACE

““VERTICAL REAL ESTATE”VERTICAL REAL ESTATE”

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 ”

HOW MUCH SIGNAL DO YOU NEED?

SPACE REQUIREMENTSSPACE REQUIREMENTS

SQUAW MOUNTAIN ZONED FOR SQUAW MOUNTAIN ZONED FOR THREE 200 FOOT TOWERSTHREE 200 FOOT TOWERS

AT MOST 3 ANTENNAS NEEDED TO AT MOST 3 ANTENNAS NEEDED TO ACCOMMODATE LCG DIGITALACCOMMODATE LCG DIGITAL

ANALOG REMAINS UNTIL PHASEOUTANALOG REMAINS UNTIL PHASEOUT

DTV SITES ON PLAINSDTV SITES ON PLAINS

DTV CHANNEL 30 FROM CHEYENNE DTV CHANNEL 30 FROM CHEYENNE WYOMING RECEIVED IN LITTLETON WYOMING RECEIVED IN LITTLETON (OVER 100 MILES AWAY)(OVER 100 MILES AWAY)

ANTENNA 530 FEET ABOVE AVERAGE ANTENNA 530 FEET ABOVE AVERAGE TERRAINTERRAIN

TRANSMITTING LESS THAN 10% OF TRANSMITTING LESS THAN 10% OF MAXIMUM ALLOWED POWERMAXIMUM ALLOWED POWER

DTV SITES ON PLAINSDTV SITES ON PLAINS

KWHD CHANNEL 46 DTV KWHD CHANNEL 46 DTV CASTLEROCK “ON THE AIR”CASTLEROCK “ON THE AIR”

ANTENNA 590 FEET ABOVE AVERAGE ANTENNA 590 FEET ABOVE AVERAGE TERRAINTERRAIN

REAL REASON LCGREAL REASON LCGCHOSE LOOKOUT CHOSE LOOKOUT

MOUNTAINMOUNTAIN

LCG LETTER TO JEFFCO PLANNING:LCG LETTER TO JEFFCO PLANNING:March 6, 1998March 6, 1998

““Fourth, and perhaps most Fourth, and perhaps most importantly, Lake Cedar Group importantly, Lake Cedar Group controls a large assemblage of controls a large assemblage of property on Lookout Mountain.”property on Lookout Mountain.”

CONCLUSIONCONCLUSION THE LCG PROPOSAL THE LCG PROPOSAL

INCREASES RF LEVELS OVER A LARGE INCREASES RF LEVELS OVER A LARGE POPULATED AREAPOPULATED AREA

DOES NOT MEET INTERFERENCE DOES NOT MEET INTERFERENCE POLICYPOLICY

STAFF AND JEFFCO RF CONSULTANT,STAFF AND JEFFCO RF CONSULTANT,

MR. HART, AGREE:MR. HART, AGREE:

VIABLE ALTERNATE SITES EXISTVIABLE ALTERNATE SITES EXIST