FREE Ham Radio Extra Class General Questions and Answers Flashcards
6 cards from real HAM practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 FREE Ham Radio Extra Class General Questions and Answers flashcards as text
What is the maximum symbol rate permitted for RTTY or data emission on the 20-meter band for Amateur Extra class licensees?
Answer: 300 baud
FCC Part 97 limits the symbol rate on the 20-meter band (14 MHz) to 300 baud for RTTY and data emissions.
Which of the following describes the function of a circulatory in a repeater system?
Answer: It isolates the transmitter and receiver when sharing a single antenna
A circulator allows the transmitter and receiver to share one antenna by directing RF energy in only one direction, providing isolation between them.
What is the purpose of a Beverage antenna?
Answer: A long-wire receiving antenna for low-frequency directional reception
A Beverage antenna is a long-wire receiving antenna, typically one or more wavelengths long, used for directional low-band reception.
What happens to the impedance at the input of a quarter-wave transmission line section that is short-circuited at the far end?
Answer: It appears as an open circuit
A quarter-wave transmission line transforms a short circuit at one end into an open circuit at the other end due to impedance inversion.
In the amateur satellite service, what is a linear transponder?
Answer: A device that retransmits a range of received frequencies shifted to another band
A linear transponder receives a segment of spectrum on one band and retransmits it on another, preserving all signal modes within that passband.
What is the primary advantage of using a direct digital synthesizer (DDS) as a VFO?
Answer: Extremely fine frequency resolution and fast switching speed
DDS provides very fine frequency steps and can switch frequencies in microseconds, making it ideal for modern transceivers.