CDC 3D153 Rf Journeyman Volume 3, Unit 1

14 Questions

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CDC Quizzes & Trivia

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Questions and Answers
  • 1. 
    (401) In the tropospheric scatter mode, the high power amplifier amplifies the radio frequency to
    • A. 

      1 milliwatt

    • B. 

      1 watt

    • C. 

      100 watt

    • D. 

      1 kilowatt

  • 2. 
    (401) Which type of diversity requires two antennas, two receivers, and two transmitters?
    • A. 

      Polarization

    • B. 

      Crossband

    • C. 

      Frequency

    • D. 

      Space

  • 3. 
    (401) The MD-1026 digital data modem can interface up to four groups of, which type of signals?
    • A. 

      Balanced non-return-to-zero (NRZ)

    • B. 

      Conditioned diphase

    • C. 

      Unbalanced NRZ

    • D. 

      Isochronous

  • 4. 
    (401) The trunk group multiplexer TD-1236 can multiplex up to 
    • A. 

      One group of the 512 Kbps data rate family

    • B. 

      One group of the 576 Kbps data rate family

    • C. 

      Four groups of the 512 Kbps data rate families or 576 Kbps data rate families

    • D. 

      Four groups of the 12 Kbps data rate families and 576 Kbps data rate families

  • 5. 
    (401) Digital voice orderwire traffic that originates at the AN/TRC-170's voice orderwire control unit, is encrypted by the 
    • A. 

      KY-68

    • B. 

      KY-58

    • C. 

      KG-84

    • D. 

      KG-81

  • 6. 
    (401) Which jack field in the AN/TRC-170's baseband patch panel provides timing and data connections? 
    • A. 

      Middle

    • B. 

      Center

    • C. 

      Upper

    • D. 

      Lower

  • 7. 
    (401) The tropospheric scatter modem processes mission traffic at data rates of 128 through 4,096 Kbps, within which data rate family?
    • A. 

      512 Kbps

    • B. 

      576 Kbps

    • C. 

      1,024 Kbps

    • D. 

      1,152 Kbps

  • 8. 
    (401) Which unit in the AN/TRC-170 terminal contains the rubidium standard?
    • A. 

      Electrical synthesizer

    • B. 

      Frequency subsystem

    • C. 

      Tropospheric scatter modem

    • D. 

      Transmitter-amplifier converter

  • 9. 
    (401) The quick reaction antenna for the V3 AN/TRC-170 terminal uses how many linearly dual-polarized antennas?
    • A. 

      Two 6-foot-diameter

    • B. 

      Four 6-foot-diameter

    • C. 

      Two 9.5-foot-diameter

    • D. 

      Four 9.5-foot-diameter

  • 10. 
    (402) The Tropo/Satellite Support Radio frequency coverage extends from 
    • A. 

      4.4 to 5.25 GHz

    • B. 

      7.25 to 8.4 GHz

    • C. 

      14.4 to 15.25 GHz

    • D. 

      17.25 to 18.4 GHz

  • 11. 
    (402) Which maximum distance in miles can a Tropo/Satellite Support Radio operate with the 2-foot antenna?
    • A. 

      9

    • B. 

      24

    • C. 

      90

    • D. 

      240

  • 12. 
    (402) What is the maximum distance in feet the Tropo/Satellite Support Radio's radio frequency and baseband assemblies can be separated?
    • A. 

      50

    • B. 

      100

    • C. 

      150

    • D. 

      200

  • 13. 
    (402) In the Tropo/Satellite Support Radio's baseband assembly, a 1-volt peak-to-peak input signal results in how much frequency deviation in the transmitter?
    • A. 

      +/- 4 MHz

    • B. 

      Less than +/- 4 MHz

    • C. 

      More than +/- 4 MHz

    • D. 

      No signal deviation

  • 14. 
    (402) Which frequency is the intermediate frequency of the Tropo/Satellite Support Radio?
    • A. 

      70 MHz with a 10 MHz bandpass

    • B. 

      70 MHz with a 20 MHz bandpass

    • C. 

      700 MHz with a 10 MHz bandpass

    • D. 

      700 MHz with a 20 MHz bandpass