HAM FREE Ham Radio Extra Class General Questions and Answers 2

Question 1

What is the maximum symbol rate permitted for RTTY or data emission on the 20-meter band for Amateur Extra class licensees?

Accepted Answer

300 baud

Answer

FCC Part 97 limits the symbol rate on the 20-meter band (14 MHz) to 300 baud for RTTY and data emissions.

Question 2

Which of the following describes the function of a circulatory in a repeater system?

Accepted Answer

It isolates the transmitter and receiver when sharing a single antenna

Answer

A circulator allows the transmitter and receiver to share one antenna by directing RF energy in only one direction, providing isolation between them.

Question 3

What is the purpose of a Beverage antenna?

Accepted Answer

A long-wire receiving antenna for low-frequency directional reception

Answer

A Beverage antenna is a long-wire receiving antenna, typically one or more wavelengths long, used for directional low-band reception.

Question 4

What happens to the impedance at the input of a quarter-wave transmission line section that is short-circuited at the far end?

Accepted Answer

It appears as an open circuit

Answer

A quarter-wave transmission line transforms a short circuit at one end into an open circuit at the other end due to impedance inversion.

Question 5

In the amateur satellite service, what is a linear transponder?

Accepted Answer

A device that retransmits a range of received frequencies shifted to another band

Answer

A linear transponder receives a segment of spectrum on one band and retransmits it on another, preserving all signal modes within that passband.

HAM - Radio Extra Class Test Practice Test