Mod 10 SCLA

The HF band extends from what range?

• 3MHz - 30GHz.

• 3MHz - 30MHz

• 3GHz - 30GHz.

• 3Hz - 30Hz.

We characterize an AM radio wave as having a/an

• amplitude, a frequency, wavelength

• power,frequency, sine wave

• aptitude, gratitude, longitude

The magnitude of change in the height of the radio wave. This is the amount of power introduced to

the signal.

• wavelength

• frequency

• amplitude

• modulation

The number of cycles completed by a periodic quantity in a unit of time. The number of cycles per

second

• Amplitude
• Frequency
• Wavelength
• Velocity

The distance over which the wave's shape repeats. It is the distance between consecutive

corresponding points of the same phase on the wave, such as two adjacent crests or troughs.

• Amplitude
• Frequency
• Wavelength
• Velocity

Frequency and wavelength have an __ relationship.

• inverse
• direct
• unrelated
• proportional

Name this symbol

• Ampersand
• Asterisk
• Lambda

• Dollar

Wavelength is measured in what?

• Meters
• Kilograms
• Seconds
• Degrees

This refers to radio waves that travel in a straight line from the transmitting antenna to the

receiving antenna.

• Line of Sight
• Diffraction
• Refraction
• Reflection

__ waves travel at or near the earth’s surface.

• Ground

• Sound
• Light
• Surface