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T7A02

PRACTICAL CIRCUITS · Station equipment: receivers, transceivers, transmitter amplifiers, RF preamplifiers, transverters; Basic radio circuit concepts and terminology: sensitivity, selectivity, mixers, oscillators, Push-To-Talk (PTT), VFO, modulation

T7A02T7A →

What is a transceiver?

  1. AA device that combines a receiver and transmitter
  2. BA device for matching feed line impedance to 50 ohms
  3. CA device for automatically sending and decoding Morse code
  4. DA device for converting receiver and transmitter frequencies to another band
Why The prefix trans- (transmitter) plus -ceiver (receiver) says it directly: a transceiver is one box that both transmits and receives, usually sharing circuitry such as the VFO, filters and antenna connector between the two functions. Nearly every modern amateur radio is a transceiver, which is why you press PTT to switch the same unit from receive to transmit.
Watch out The choice about converting frequencies to another band describes a transverter, which takes a transceiver's output on one band and shifts it to another, and the impedance-matching choice describes an antenna tuner.
TRANSmitter + reCEIVER = TRANSCEIVER. Transverter is the one that 'converts' bands.
HamSandwich explanation, first draft. The question and answers are the NCVEC text.
← T7A01 All of T7A T7A03 →

The rest of T7A

  1. T7A01 Which term describes the ability of a receiver to detect the presence of a signal?
  2. T7A02 What is a transceiver?
  3. T7A03 Which of the following is used to convert a signal from one frequency to another?
  4. T7A04 Which term describes the ability of a receiver to discriminate between multiple signals?
  5. T7A05 What is the name of a circuit that generates a signal at a specific frequency?
  6. T7A06 What device converts the RF input and output of a transceiver to another band?
  7. T7A07 What is the function of a transceiver's PTT input?
  8. T7A08 Which of the following describes combining speech with an RF carrier signal?
  9. T7A09 What is the function of the switch which selects either SSB or CW-FM on some VHF power amplifiers?
  10. T7A10 What can be added to the output of a transceiver to increase the transmitted output power?
  11. T7A11 What is the function of the Variable Frequency Oscillator (VFO) circuit in a transceiver?
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