What type of amateur station simultaneously retransmits the signal of another amateur station on a different channel or channels?
The correct answer is C: Repeater station. According to FCC Part 97.3(a)(39), a repeater station is an amateur station that simultaneously retransmits the signal of another amateur station on a different channel or channels. This is the primary function of a repeater - receiving on one frequency and retransmitting on another.
Repeaters extend the communication range by receiving weak signals on one frequency (the input) and retransmitting them at higher power on another frequency (the output). This allows stations that might not be able to hear each other directly to communicate through the repeater. The simultaneous retransmission on different channels is what defines a repeater station.
Exam Tip
Repeater = Simultaneous retransmission on different channels. Remember: Repeaters receive on one frequency and simultaneously retransmit on another frequency - that's what makes them repeaters.
Memory Aid
"**R**epeater = **R**eceives and **R**etransmits on **D**ifferent **C**hannels (think 'R = RRDC')"
Real-World Application
Your local 2-meter repeater receives signals on 146.160 MHz (input) and simultaneously retransmits them on 146.760 MHz (output) at higher power. When you transmit on 146.160 MHz, the repeater immediately retransmits your signal on 146.760 MHz, allowing other stations to hear you even if they're too far away to receive your original transmission directly.
FCC Part 97.3(a)(39)Key Concepts
Why Other Options Are Wrong
Option A: Incorrect. Beacon stations transmit continuously for propagation study, but they don't retransmit other stations' signals. They transmit their own identification and location.
Option B: Incorrect. Earth stations communicate with space stations but don't retransmit other amateur stations' signals on different channels.
Option D: Incorrect. Message forwarding stations handle digital messages but don't simultaneously retransmit signals on different channels like repeaters do.
题目解析
The correct answer is C: Repeater station. According to FCC Part 97.3(a)(39), a repeater station is an amateur station that simultaneously retransmits the signal of another amateur station on a different channel or channels. This is the primary function of a repeater - receiving on one frequency and retransmitting on another. Repeaters extend the communication range by receiving weak signals on one frequency (the input) and retransmitting them at higher power on another frequency (the output). This allows stations that might not be able to hear each other directly to communicate through the repeater. The simultaneous retransmission on different channels is what defines a repeater station.
考试技巧
Repeater = Simultaneous retransmission on different channels. Remember: Repeaters receive on one frequency and simultaneously retransmit on another frequency - that's what makes them repeaters.
记忆口诀
**R**epeater = **R**eceives and **R**etransmits on **D**ifferent **C**hannels (think 'R = RRDC')
实际应用示例
Your local 2-meter repeater receives signals on 146.160 MHz (input) and simultaneously retransmits them on 146.760 MHz (output) at higher power. When you transmit on 146.160 MHz, the repeater immediately retransmits your signal on 146.760 MHz, allowing other stations to hear you even if they're too far away to receive your original transmission directly.
错误选项分析
Option A: Incorrect. Beacon stations transmit continuously for propagation study, but they don't retransmit other stations' signals. They transmit their own identification and location. Option B: Incorrect. Earth stations communicate with space stations but don't retransmit other amateur stations' signals on different channels. Option D: Incorrect. Message forwarding stations handle digital messages but don't simultaneously retransmit signals on different channels like repeaters do.
知识点
FCC Part 97.3(a)(39), Repeater station, Simultaneous retransmission, Different channels
Verified Content
Question from official FCC Technician Class question pool. Explanation reviewed by licensed amateur radio operators.