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Subelement 3

Station Assembly, Practice and Safety

Section 3-01

functional layout of HF stations

A low pass filter in an HF station is most effective when connected:

  • Correct Answer
    as close as possible to the transceiver output
  • as close as possible to the antenna tuner output
  • as close as possible to the antenna midway between the transceiver and antenna
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A low pass filter in an HF station is most effective when connected:

  • as close as possible to the antenna
  • as close as possible to the antenna tuner output
  • as close as possible to the linear amplifier input
  • Correct Answer
    as close as possible to the linear amplifier output
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In designing an HF station, which component would you use to reduce the effects of harmonic radiation?

  • Dummy load
  • Correct Answer
    Low pass filter
  • Antenna switch
  • SWR bridge
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Which component in an HF station is the most useful for determining the effectiveness of the antenna system?

  • Correct Answer
    SWR bridge
  • Antenna switch
  • Linear amplifier
  • Dummy load
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Of the components in an HF station, which component would normally be connected closest to the antenna, antenna tuner and dummy load?

  • Transceiver
  • Low pass filter
  • Correct Answer
    Antenna switch
  • SWR bridge
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Of the components in an HF station, which component would be used to match impedances between the transceiver and antenna?

  • Correct Answer
    Antenna tuner
  • Antenna switch
  • Dummy load
  • SWR bridge
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In an HF station, which component is temporarily connected in the tuning process?

  • SWR bridge
  • Low pass filter
  • Antenna tuner
  • Correct Answer
    Dummy load
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In an HF station, the antenna tuner is usually used for matching the transceiver with:

  • Correct Answer
    most antennas when operating below 14 MHz
  • most antennas when operating above 14 MHz
  • mono-band Yagi type antennas
  • tri-band Yagi antennas
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In an HF Station, the antenna tuner is commonly used:

  • with most antennas when operating above 14 MHz
  • to tune into dummy loads
  • to tune low pass filters
  • Correct Answer
    with most antennas when operating below 14 MHz
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