Radio and Electromagnetic Wave Properties - T3B Flashcards Preview

Ham Radio Technician Test > Radio and Electromagnetic Wave Properties - T3B > Flashcards

Flashcards in Radio and Electromagnetic Wave Properties - T3B Deck (11):
1

What is the name for the distance a radio wave travels during one complete cycle?

Wavelength

2

What term describes the number of times per second that an alternating current reverses direction?

Frequency

3

What are the two components of a radio wave?

Electric and magnetic fields

4

How fast does a radio wave travel through free space?

At the speed of light

5

How does the wavelength of a radio wave relate to its frequency?

The wavelength gets shorter as the frequency increases

6

What is the formula for converting frequency to wavelength in meters?

Wavelength in meters equals 300 divided by frequency in megahertz

7

What property of radio waves is often used to identify the different frequency bands?

The approximate wavelength

8

What are the frequency limits of the VHF spectrum?

30 to 300 MHz

9

What are the frequency limits of the UHF spectrum?

300 to 3000 MHz

10

What frequency range is referred to as HF?

3 to 30 MHz

11

What is the approximate velocity of a radio wave as it travels through free space?

300,000,000 meters per second