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Subelement 1
Regulations and Policies
Section 1-16
maximum bandwidth by frequency bands
What is the maximum authorized bandwidth within the frequency range of 50 to 148 MHz?
  • 20 kHz
  • The total bandwidth shall not exceed that of a single-sideband phone emission
  • The total bandwidth shall not exceed 10 times that of a CW emission
  • Correct Answer
    30 kHz
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The maximum bandwidth of an amateur station's transmission allowed in the band 28 to 29.7 MHz is:
  • 6 kHz
  • Correct Answer
    20 kHz
  • 30 kHz
  • 15 kHz
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Except for one band, the maximum bandwidth of an amateur station's transmission allowed below 28 MHz is:
  • Correct Answer
    6 kHz
  • 15 kHz
  • 20 kHz
  • 30 kHz
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The maximum bandwidth of an amateur station's transmission allowed in the band 144 to 148 MHz is:
  • 6 kHz
  • 20 kHz
  • Correct Answer
    30 kHz
  • 15 kHz
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The maximum bandwidth of an amateur station's transmission allowed in the band 50 to 54 MHz is:
  • 20 kHz
  • Correct Answer
    30 kHz
  • 6 kHz
  • 15 kHz
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Only one band of amateur frequencies has a maximum allowed bandwidth of less than 6 kHz. That band is:
  • 18.068 to 18.168 MHz
  • Correct Answer
    10.1 to 10.15 MHz
  • 24.89 to 24.99 MHz
  • 1.8 to 2.0 MHz
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Single sideband is not permitted in the band:
  • 18.068 to 18.168 MHz
  • Correct Answer
    10.1 to 10.15 MHz
  • 24.89 to 24.99 MHz
  • 7.0 to 7.3 MHz
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The bandwidth of an amateur station shall be determined by measuring the frequency band occupied by that signal at a level of _______ dB below the maximum amplitude of that signal:
  • 3
  • 6
  • 36
  • Correct Answer
    26
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Which of the following answers is not correct? Based on the bandwidth required, the following modes may be transmitted on these frequencies:
  • AMTOR on 14.08 MHz
  • packet on 10.145 MHz
  • Correct Answer
    fast-scan television (ATV) on 145 MHz
  • fast-scan television (ATV) on 440 MHz
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Which of the following answers is not correct? Based on the bandwidth required, the following modes may be transmitted on these frequencies:
  • Correct Answer
    fast-scan television (ATV) on 14.23 MHz
  • slow-scan television (SSTV) on 14.23 MHz
  • frequency modulation (FM) on 29.6 MHz
  • single-sideband (SSB) on 3.76 MHz
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Which of the following answers is not correct? Based on the bandwidth required, the following modes may be transmitted on these frequencies:
  • Correct Answer
    single-sideband (SSB) on 10.12 MHz
  • frequency modulation (FM) on 29.6 MHz
  • Morse radiotelegraphy (CW) on 10.11 MHz
  • packet on 10.148 MHz
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