Repeaters & Linking Systems Flashcards
7 cards from real Ham Radio Technician Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Repeaters & Linking Systems flashcards as text
What is the primary purpose of a repeater in amateur radio?
Answer: To retransmit signals simultaneously on a different frequency to extend range
A repeater receives a signal on its input frequency and simultaneously retransmits it on its output frequency to extend the range of communications.
What is the term for the difference between a repeater's input (receive) frequency and its output (transmit) frequency?
Answer: Offset
The offset is the frequency difference between what the repeater receives and what it transmits, typically expressed in kHz or MHz.
What is the standard repeater frequency offset for the 2-meter (144 MHz) band?
Answer: 600 kHz
The standard offset for 2-meter repeaters is 600 kHz, applied either plus or minus from the output frequency.
What is the standard repeater frequency offset for the 70-centimeter (440 MHz) band?
Answer: 5.0 MHz
The standard offset for 70-centimeter (UHF) repeaters is 5.0 MHz, which is larger than the 2-meter offset.
What is CTCSS in the context of repeater operation?
Answer: A subaudible tone system used to selectively activate repeaters
CTCSS (Continuous Tone-Coded Squelch System) uses subaudible tones transmitted with your signal to selectively open a repeater's squelch.
What does 'full duplex' mean in the context of repeater operation?
Answer: The repeater can receive on its input and transmit on its output simultaneously
Full duplex operation means the repeater receives on its input frequency and retransmits on its output frequency at the same time.
What is a 'courtesy tone' on a repeater?
Answer: A tone played by the repeater signaling it is ready for the next transmission
A courtesy tone is played by the repeater after a transmission ends to indicate it has received the signal and the channel is ready for another station.