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Chapter 11

Chapter 11. “Safety” Steve Irick, WB9DUS Discussion Leader. Chapter 11. Hazardous Materials. E0A09 Which insulating material commonly used as a thermal conductor for some types of electronic devices is extremely toxic if broken or crushed and the particles are accidentally inhaled?.

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Chapter 11

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  1. Chapter 11 “Safety” Steve Irick, WB9DUS Discussion Leader

  2. Chapter 11 Hazardous Materials

  3. E0A09Which insulating material commonly used as a thermal conductor for some types of electronic devices is extremely toxic if broken or crushed and the particles are accidentally inhaled? • Uranium Hexaflouride • Beryllium Oxide • Zinc oxide • Mica

  4. Chapter 11 RF Exposure

  5. E0A02 When evaluating exposure levels from your station at a neighbor’s home, what must youdo? • Nothing; you need only evaluate exposure levels on your own property • Advise your neighbors of the results of your tests

  6. E0A02 (Cont.) • Make sure signals from your station are less than the controlled MPE limits • Make sure signals from your station are less than the uncontrolled MPE limits

  7. Chapter 11 RF Exposure (Cont.)

  8. E0A03 Which of the following would be a practical way to estimate whether the RF fields produced by an amateur radio station are within permissible MPE limits? • Use a computer-based antenna modeling program to calculate field strength at accessible locations

  9. E0A03 (Cont.) • Use a calibrated antenna analyzer • Use a hand calculator plus Smith-chart equations to calculate the fields • Walk around under the antennas with a neon-lamp probe to find the strongest fields

  10. Next Class Session • Study Chapter 2 “Operating Practices” • Study the Chapter 2 Question Pool questions found in the chapter Blue Boxes e.g. page 2-6 • Prepare your Chapter 11and Chapter 2Study Guide materials

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