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G4B06

AMATEUR RADIO PRACTICES · - Tests and test equipment

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What is an advantage of a digital multimeter as compared to an analog multimeter?

  1. ABetter for measuring computer circuits
  2. BLess prone to overload
  3. CHigher precision
  4. DFaster response
Why A digital multimeter displays a numeric reading to several digits, so you can resolve a value far more finely than you can by eyeballing a needle against a printed scale on an analog meter. That extra resolution is what the pool calls higher precision. Analog meters still have their uses, but reading exact values is not one of them.
Watch out Faster response is actually an analog strength: the moving needle shows trends and lets you peak or null an adjustment, while a digital display's numbers jump around and update only a few times per second.
Digital = more digits = higher precision. Analog = moving needle = better for peaking and nulling.
HamSandwich explanation, first draft. The question and answers are the NCVEC text.
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The rest of G4B

  1. G4B01 What item of test equipment contains horizontal and vertical channel amplifiers?
  2. G4B02 Which of the following is an advantage of an oscilloscope versus a digital voltmeter?
  3. G4B03 Which of the following is the best instrument to use for checking the keying waveform of a CW transmitter?
  4. G4B04 What signal source is connected to the vertical input of an oscilloscope when checking the RF envelope patter…
  5. G4B05 Why do voltmeters have high input impedance?
  6. G4B06 What is an advantage of a digital multimeter as compared to an analog multimeter?
  7. G4B07 What signals are used to conduct a two-tone test?
  8. G4B08 What transmitter performance parameter does a two-tone test analyze?
  9. G4B09 When is an analog multimeter preferred to a digital multimeter?
  10. G4B10 Which of the following can be determined with a directional wattmeter?
  11. G4B11 Which of the following must be connected to an antenna analyzer when it is being used for SWR measurements?
  12. G4B12 What effect can strong signals from nearby transmitters have on an antenna analyzer?
  13. G4B13 Which of the following can be measured with an antenna analyzer?
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