‰  NOW 40 WPM  ‰  TEXT IS FROM MARCH 2009 QST  PAGES 70, 71 AND 81  ‰
EDGE OF YOUR PROPERTY, AND YOUR NEIGHBORS APARTMENT OR YARD.  THE
REQUIREMENTS FOR UNCONTROLLED SPACE ARE MORE STRINGENT SINCE YOU CANT
REDUCE OR ELIMINATE EXPOSURE IN AREAS OUTSIDE YOUR CONTROL.  IF YOU CANT
KEEP UNSUSPECTING PEOPLE OUT OF YOUR CON
‰  FROM PAGE 81  ‰
KA1CQR 12 B A N2QT 348,968 B B KB8UUZ 33,916 B B ND0C 36,698 B A KW7N 8,704

DOCUMENTED, FOR NON MOBILE STATIONS THAT EXCEED THE POWER LEVELS TO THE
ANTENNA SHOWN IN TABLE 1.  NOTE THAT THERE ARE SPECIAL REQUIREMENTS FOR
REPEATER STATIONS AND ALSO FOR HIGHER UHF AND MICROWAVE BANDS.  FOR
COMPLETE DETAILS, SEE THE BOOK BY ARRL LAB MANAGER ED HARE, W1FRI, RF
EXPOSURE AND YOU, OR ARTICLES ON THE ARRL WEB.  IF YOUR STATION CONSISTS OF
A 100 W HF TRANSCEIVER AND YOUR ANTENNA IS FED WITH LOW LOSS LINE, YOU WILL
NEED TO REDUCE YOUR POWER ON 10 AND 12 METERS, UNLESS YOU COMPLETE AN
EVALUATION.  SINCE A 50 POWER REDUCTION REPRESENTS JUST 1/2 AN S UNIT,
CHANCES ARE YOU WONT NOTICE.  ON THE OTHER HAND, IF YOUR ELEVATED MATCHED
ANTENNA IS FED WITH 105 FEET OF NON FOAM RG 58, THE POWER FROM YOUR 100 W
TRANSMITTER THAT REACHES YOUR ANTENNA WILL BE AROUND 50 W ON 10 METERS, 55
W ON 12 METERS AND LESS THAN 100 W ON THE OTHER HF AND MF BANDS.  THUS NO
ADDITIONAL ASSESSMENT IS REQUIRED.  NOTE THAT YOUR ACTUAL LOSS SHOULD BE
MEASURED, SINCE MANUFACTURERS SPECIFICATIONS MAY BE CONSERVATIVE.  SO WHEN
‰  FROM PAGE 81  ‰
607,005 A C K1DG 1,982,916 A C N5DX 1,389,545 A C KE9I 497,484 A C K5NA
1,249,620 A C K1LZ 1,787,478 A C W4AN 1,029,155 A C VE3XN 245,291 A C W5KFT

GETTING ON THE AIR W1ZR LEARNING TO LIVE WITH RF SAFETY NOW THAT YOUVE
RECEIVED YOUR LICENSE AND ARE PUTTING TOGETHER A STATION, ITS TIME TO
REMEMBER ALL THAT MATERIAL YOU HAD TO LEARN ABOUT RF SAFETY.  BEFORE 1997
THERE WERE MINIMAL REQUIREMENTS ON LEVELS OF RF SIGNALS THAT COULD OCCUPY
THE SAME SPACE AS PEOPLE IN THE US.  EVERYONE KNEW WHAT A MICROWAVE OVEN
COULD DO TO A HOT DOG, AND EVERYONE HOPED THAT WHAT THEY PUT OUT WOULD NOT
DO THE SAME TO US, OUR FAMILY OR INNOCENT BYSTANDERS.  WHILE IT IS VERY
DIFFICULT TO BOIL WATER WITH AN AMATEUR SIGNAL, THE FCC RULES ISSUED IN
1997, AND THEIR SUPPLEMENT B, PROVIDING AMATEUR RADIO SPECIFIC GUIDELINES,
ARE DESIGNED TO MAKE SURE PEOPLE ARE SAFE FROM RADIATION LEVELS LOWER THAN
THOSE USED FOR COOKING.  THE ACTUAL SAFE LIMITS HAD BEEN DEBATED
INTERNATIONALLY FOR SOME YEARS AND WITH THIS NEW RULING THE US MADE THE
SAFETY LIMITS DEVELOPED BY SCIENTIFIC BODIES A LEGAL REQUIREMENT FOR EVERY
RF EMITTING DEVICE IN THE COUNTRY.  SO, WHAT DO WE NEED TO DO?  ALL
LICENSED AMATEUR RADIO STATIONS ARE REQUIRED TO BE IN COMPLIANCE WITH THE
RF EXPOSURE LIMITS.  A ROUTINE EVALUATION IS REQUIRED TO BE CONDUCTED, AND
‰  FROM PAGE 81  ‰
193,533 A B VE7CC 964,626 A C KA1MDQ 20,800 A B W4KAZ 48,090 A B NR9A
143,226 A B K6XX 943,520 A C K3XO 46,926 A B VE3AT 1,930,480 A C VE4YU
141,030 A B K6AM 648,875 A C VY2ZM 2,339,922 A C VE3EJ 1,923,750 A C N6AN
‰  END OF 40 WPM TEXT  ‰  QST DE W1AW  ƒ