Amplitude Modulation (AM)

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Amplitude Modulation (AMAmplitude Modulation)
AM radio.jpg
Frequencies 153 kHzKiloHertz (kHz) 10^3 Hz153,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
0.153 MHzMegaHertz (MHz) 10^6 Hz
,137 MHzMegaHertz (MHz) 10^6 Hz137,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
137,000 kHzKiloHertz (kHz) 10^3 Hz
153 kHzKiloHertz (kHz) 10^3 Hz
0.153 MHzMegaHertz (MHz) 10^6 Hz
137,000 kHzKiloHertz (kHz) 10^3 Hz
137 MHzMegaHertz (MHz) 10^6 Hz
Frequency Range 153 kHzKiloHertz (kHz) 10^3 Hz153,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
0.153 MHzMegaHertz (MHz) 10^6 Hz
- 137 MHzMegaHertz (MHz) 10^6 Hz137,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
137,000 kHzKiloHertz (kHz) 10^3 Hz
Mode AMAmplitude Modulation
Modulation AMAmplitude Modulation
ACF
Bandwidth 10000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).10 kHzKiloHertz (kHz) 10^3 Hz
0.01 MHzMegaHertz (MHz) 10^6 Hz
10 kHzKiloHertz (kHz) 10^3 Hz
0.01 MHzMegaHertz (MHz) 10^6 Hz
10 kHzKiloHertz (kHz) 10^3 Hz
0.01 MHzMegaHertz (MHz) 10^6 Hz
Location Worldwide
Short Description Long range commercial broadcast and international radio. Also used for aviation communications.
I/Q Raw Recording Download file
Audio Sample

Long range commercial broadcast and international radio. Also used for aviation communications. High powered international stations can be received from all around the world with a sufficient antenna system.


Click Here to Hear AM Radio Live at WebSDR Univ. of Twente[edit]

Samples[edit]

AMAmplitude Modulation Aviation
135.9 MHzMegaHertz (MHz) 10^6 Hz
Aviation AM.jpg

Auckland Aviation:

Frequencies[edit]

Long wave – 153 kHzKiloHertz (kHz) 10^3 Hz to 279 kHzKiloHertz (kHz) 10^3 Hz

Medium wave – 531 kHzKiloHertz (kHz) 10^3 Hz to 1611 kHzKiloHertz (kHz) 10^3 Hz in ITU regions 1 and 3 and 540 kHzKiloHertz (kHz) 10^3 Hz to 1610 kHzKiloHertz (kHz) 10^3 Hz kHzKiloHertz (kHz) 10^3 Hz in ITU region 2.

Short wave – 2.3 MHzMegaHertz (MHz) 10^6 Hz to 26.1 MHzMegaHertz (MHz) 10^6 Hz

Aircraft - 108 MHzMegaHertz (MHz) 10^6 Hz to 137 MHzMegaHertz (MHz) 10^6 Hz

Decoding Software[edit]

Any software with AMAmplitude Modulation mode for listening.

For C-QUAM AMAmplitude Modulation Stereo, SoDiRa seems to be the only software capable of decoding AMAmplitude Modulation stereo. Demo version is free.

Antennas[edit]

Broadcast AMAmplitude Modulation is vertically polarized. However, at HFHigh Frequency (3-30 MHz) and lower frequencies signal bounce may allow horizontally polarized antennas to pick up signals as well.

Aviation AMAmplitude Modulation is vertically polarized.

Video Examples[edit]

Additional Images[edit]