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Lesson 9: Amateur Radio Practices

Lesson 9 of 10, syllabus topic T4. The exam asks 2 questions from this topic, one from each of its 2 groups.

Station setup and operating controls bring together the equipment, power and antennas from the earlier lessons.

What you will learn

  • T4A Station setup: connecting a microphone, RF power meter, a power source, a computer, digital equipment, an SWR meter; RF grounding; Mobile radio installation
  • T4B Operating controls: frequency tuning, use of filters, squelch function, AGC, memory channels, noise blanker, microphone gain, receiver incremental tuning (RIT), bandwidth selection, scanning function; Digital transceiver configuration; DMR code plugs and talk groups

1. Read

  1. Choosing your first radio: Handheld, mobile or baseHelps with T4A
  2. Choosing your first radio: Power supplies and batteriesHelps with T4A
  3. Digital modes: Connecting a computer to a radioHelps with T4A
  4. Electrical and antenna safety: Grounding and bondingHelps with T4A
  5. Choosing your first radio: Programming the radioHelps with T4B
  6. Programming a radio: What a memory channel storesHelps with T4B
  7. Programming a radio: Squelch and scanningHelps with T4B
  8. Programming a radio: Digital voice radiosHelps with T4B
  9. All 23 T4 questions with their answers and explanationsEvery group, with the rule or source behind each answer

2. Explore

  • DC power wiring

    See how much voltage a long, thin power cable loses while the radio transmits. More current or a thinner wire means a larger drop.

3. Practice

Practice one group at a time. A group is ready when you have answered every one of its questions and learned at least 80 percent of them; a question counts as learned when your last three answers to it were correct. To review quickly, go through this lesson’s questions as flashcards.

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