ARRL Vocabulary Development 3

Question 1

What does 'modulation' mean in radio communications?

Accepted Answer

Varying a carrier wave to encode information

Answer

Adjusting the antenna length for resonance

Answer

Increasing transmitter output power

Answer

Selecting the operating frequency

Question 2

In amateur radio, what is a 'phone' contact?

Accepted Answer

A voice (SSB, FM, or AM) contact

Answer

A contact made using a telephone patch

Answer

A contact using a smartphone app

Answer

A phonetic alphabet drill contact

Question 3

What does 'ARES' stand for?

Accepted Answer

Amateur Radio Emergency Service

Answer

Automated Relay and Emergency System

Answer

Amateur Repeater and Equipment Standards

Answer

ARRL Radio Equipment Specifications

Question 4

What is 'pileup' in DX operating?

Accepted Answer

Multiple stations simultaneously calling a rare DX station

Answer

Excessive static on a frequency

Answer

An antenna installation on a roof or tower

Answer

A log of contacts made during a contest

Question 5

What is meant by 'propagation' in amateur radio?

Accepted Answer

The way radio waves travel from transmitter to receiver

Answer

The process of licensing new amateur operators

Answer

Increasing antenna gain through phasing

Answer

The spreading of interference across a band

Question 6

What is the meaning of 'RST' in amateur radio signal reports?

Accepted Answer

Readability, Strength, Tone

Answer

Receive, Send, Transmit

Answer

Radio Signal Threshold

Answer

Repeater Station Telemetry

Question 7

What does 'PTT' stand for on a microphone or transceiver?

Accepted Answer

Push To Talk

Answer

Power Transfer Technology

Answer

Preset Tone Transmission

Answer

Phase Tuning Toggle