preview

What Factors Affect Am and Fm Radio Reception?

Decent Essays
Open Document

What Factors Affect AM And FM Radio Reception?
Background Information
Communications are carried by waves. One type of communication is AM and FM radio. AM and FM radio’s use radio waves. A radio wave is an electromagnetic wave propagated by an antenna at various frequencies. In AM (amplitude modulated) radio waves, the audio signal changes the amplitude of the carrier wave. In FM (frequency modulated) radio waves, the audio signal changes the frequency of the carrier wave. Australia’s broadcast bandwidth for AM radio is 500-1500 KHz and for FM radio it is 80-108 MHz. AM radio waves can be affected by electrical interference (such as household appliances) and devices oscillating in the same frequency band. FM radio waves aren’t subject to …show more content…

tenna
I recorded how good the quality of the reception is on a scale of 1-10
I repeated steps 1-4 three times for reliable results
I repeated steps 1-5 but tuned into the AM radio station 1431 KHz

Water test
I tuned the portable radio into the FM radio station 98.1 MHz
I recorded how good the quality of the reception is on a scale of 1-10 (1 being poor, 10 being good)
I submerged the radio antenna completely under water inside a glass
I recorded how good the quality of the reception is on a scale of 1-10
I repeated steps 1-4 three times for reliable results
I repeated steps 1-5 but tuned into the AM radio station 1431 KHz

Metal Box test
I tuned the portable radio into the FM radio station 98.1 MHz
I recorded how good the quality of the reception is on a scale of 1-10 (1 being poor, 10 being good)
I placed the radio inside the metal box and closed the lid
I recorded how good the quality of the reception is on a scale of 1-10
I repeated steps 1-4 three times for reliable results
I repeated steps 1-5 but tuned into the AM radio station 1431 KHz

Incandescent Light Bulb test
I tuned the portable radio into the FM radio station 98.1 MHz
I recorded how good the quality of the reception is on a scale of 1-10 (1 being poor, 10 being good)
I placed the radio right next to the light bulb
I recorded how good the quality of the reception is on a scale of 1-10
I repeated steps 1-4 three times for reliable results
I repeated steps 1-5 but tuned into the AM radio station 1431 KHz

Get Access
Related
Get Access