Lesson 6

Question 1

is a subaudible tone transmitted along with normal voice audio to open the squelch of a receiver

Answer 1

CTCSS

Question 2

CTCSS

Answer 2

Continuous Tone-Coded Squelch System

Question 3

DCS

Answer 3

Digital Coded Squelch

Question 4

uses digital codes instead of subaudible CTCSS tones to open repeaters, seems to be used more frequently in metropolitan areas.

Answer 4

DCS

Question 5

If you can’t transmit on a repeater, even though you can hear the output, it could be because of:

Answer 5

Improper transceiver offset.

The repeater may require a proper CTCSS tone from your transceiver.

The repeater may require a proper DCS tone from your transceiver

Question 6

What term describes the use of a sub-audible tone transmitted along with normal voice audio to open the squelch of a receiver?

Answer 6

CTCSS

Question 6

Are amateur station control operators ever permitted to operate outside the frequency privileges of their license class?

Answer 6

Yes, but only in situations involving the immediate safety of human life or protection of property

Question 7

What is the purpose of the color code used on DMR repeater systems?

Answer 7

Must match the repeater color code for access

Question 8

What type of signaling uses pairs of audio tones?

Answer 8

DTMF

Question 9

Which of the following describes a linked repeater network?

Answer 9

A network of repeaters in which signals received by one repeater are transmitted by all the repeaters in the network

Question 10

What is RACES?

Answer 10

An FCC part 97 amateur radio service for civil defense communications during national emergencies

Question 11

What information is contained in the preamble of a formal traffic message?

Answer 11

Information needed to track the message

Question 12

What does the term “traffic” refer to in net operation?

Answer 12

Messages exchanged by net stations

Question 13

Which of the following could be the reason you are unable to access a repeater whose output you can hear?

Answer 13

Improper transceiver offset.

The repeater may require a proper CTCSS tone from your transceiver.

The repeater may require a proper DCS tone from your transceiver

Question 14

Which of the following is standard practice when you participate in a net?

Answer 14

Unless you are reporting an emergency, transmit only when directed by the net control station

Question 15

Which of the following is a characteristic of good traffic handling?

Answer 15

Passing messages exactly as received

Question 16

What is meant by “check” in a radiogram header?

Answer 16

The number of words or word equivalents in the text portion of the message

Question 17

What is the Amateur Radio Emergency Service (ARES)?

Answer 17

A group of licensed amateurs who have voluntarily registered their qualifications and equipment for communications duty in the public service

Question 18

How can you join a digital repeater’s “talk group”?

Answer 18

Program your radio with the group’s ID or code

Question 19

Which of the following are typical duties of a Net Control Station?

Answer 19

Call the net to order and direct communications between stations checking in

Question 20

When do FCC rules NOT apply to the operation of an amateur station?

Answer 20

FCC rules always apply

Question 21

What is the purpose of a squelch function?

Answer 21

Mute the receiver audio when a signal is not present