How many times per second is a new frame transmitted in a fast-scan (NTSC) television system?

  1. 30
  2. 60
  3. 90
  4. 120


How many horizontal lines make up a fast-scan (NTSC) television frame?

  1. 30
  2. 60
  3. 525
  4. 1080


How is an interlaced scanning pattern generated in a fast-scan (NTSC) television system?

  1. By scanning two fields simultaneously
  2. By scanning each field from bottom to top
  3. By scanning lines from left to right in one field and right to left in the next
  4. By scanning odd numbered lines in one field and even numbered lines in the next


How is color information sent in analog SSTV?

  1. Color lines are sent sequentially
  2. Color information is sent on a 2.8 kHz subcarrier
  3. Color is sent in a color burst at the end of each line
  4. Color is amplitude modulated on the frequency modulated intensity signal


Which of the following describes the use of vestigial sideband in analog fast-scan TV transmissions?

  1. The vestigial sideband carries the audio information
  2. The vestigial sideband contains chroma information
  3. Vestigial sideband reduces bandwidth while allowing for simple video detector circuitry
  4. Vestigial sideband provides high frequency emphasis to sharpen the picture


What is vestigial sideband modulation?

  1. Amplitude modulation in which one complete sideband and a portion of the other are transmitted
  2. A type of modulation in which one sideband is inverted
  3. Narrow-band FM modulation achieved by filtering one sideband from the audio before frequency modulating the carrier
  4. Spread spectrum modulation achieved by applying FM modulation following single sideband amplitude modulation


What is the name of the signal component that carries color information in NTSC video?

  1. Luminance
  2. Chroma
  3. Hue
  4. Spectral intensity


What technique allows commercial analog TV receivers to be used for fast-scan TV operations on the 70 cm band?

  1. Transmitting on channels shared with cable TV
  2. Using converted satellite TV dishes
  3. Transmitting on the abandoned TV channel 2
  4. Using USB and demodulating the signal with a computer sound card


What hardware, other than a receiver with SSB capability and a suitable computer, is needed to decode SSTV using Digital Radio Mondiale (DRM)?

  1. A special IF converter
  2. A special front end limiter
  3. A special notch filter to remove synchronization pulses
  4. No other hardware is needed


What aspect of an analog slow-scan television signal encodes the brightness of the picture?

  1. Tone frequency
  2. Tone amplitude
  3. Sync amplitude
  4. Sync frequency


What is the function of the Vertical Interval Signaling (VIS) code sent as part of an SSTV transmission?

  1. To lock the color burst oscillator in color SSTV images
  2. To identify the SSTV mode being used
  3. To provide vertical synchronization
  4. To identify the call sign of the station transmitting


What signals SSTV receiving software to begin a new picture line?

  1. Specific tone frequencies
  2. Elapsed time
  3. Specific tone amplitudes
  4. A two-tone signal