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Technician License Course Chapter 2

Technician License Course Chapter 2. Lesson Plan Module 3 – Radio Equipment Basics. The Basic Radio Station. Basic Station Organization. Station Equipment Receiver Transmitter Antenna Power Supply Accessory Station Equipment Microphones, speakers, Morse Code keys.

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Technician License Course Chapter 2

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  1. Technician License CourseChapter 2 Lesson Plan Module 3 – Radio Equipment Basics

  2. The Basic Radio Station

  3. Basic Station Organization • Station Equipment • Receiver • Transmitter • Antenna • Power Supply • Accessory Station Equipment • Microphones, speakers, Morse Code keys

  4. Transmit/Receive (TR) Switch • If the station antenna is shared between the transmitter and receiver, the TR switch allows the antenna to be switched to the transmitter when sending and to the receiver when receiving. • In a transceiver, this TR switch is inside the unit and requires no attention by the operator.

  5. Special Stations You Will Use (Repeaters) • Repeaters are automated stations located at high places that receive and then retransmit your signal – simultaneously. • Dramatically improves range of low power or mobile stations. • The basic components of a repeater are the same as your station: receiver, transmitter, antenna and power supply.

  6. Repeaters • But, repeaters are transmitting and receiving at the same time using the same antenna. • This requires a very high quality and specialized filter to prevent the transmitted signal from overpowering the receiver. • This specialized filter is called a duplexer.

  7. Repeaters • Repeater Station Equipment • Receiver • Transmitter • Antenna • Power Supply • Duplexer • Controller

  8. Repeater

  9. Basic Station Accessories • Human interface accessories: • Microphones • Speakers • Earphones • Computer • Morse code key • TV camera • Etc. • Station performance accessories: • Antenna tuner • SWR meter (antenna match checker) • Amplifier • Antenna rotator (turning antenna) • Filters • Etc.

  10. Accessory Equipment

  11. What type of amateur station simultaneously retransmits the signal of another amateur station on a different channel or channels? (T1F09) • A. Beacon station • B. Earth station • C. Repeater station • D. Message forwarding station

  12. What type of amateur station simultaneously retransmits the signal of another amateur station on a different channel or channels? (T1F09) • A. Beacon station • B. Earth station • C. Repeater station • D. Message forwarding station

  13. What could be used in place of a regular speaker to help you copy signals in a noisy area? (T4A02) • A. A video display • B. A low pass filter • C. A set of headphones • D. A boom microphone

  14. What could be used in place of a regular speaker to help you copy signals in a noisy area? (T4A02) • A. A video display • B. A low pass filter • C. A set of headphones • D. A boom microphone

  15. If Figure T5 represents a transceiver in which block 1 is the transmitter portion and block 3 is the receiver portion, what is the function of block 2? (T7A07) • A. A balanced modulator • B. A transmit-receive switch • C. A power amplifier • D. A high-pass filter

  16. If Figure T5 represents a transceiver in which block 1 is the transmitter portion and block 3 is the receiver portion, what is the function of block 2? (T7A07) • A. A balanced modulator • B. A transmit-receive switch • C. A power amplifier • D. A high-pass filter

  17. Reading Assignment: Chapter 3

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