Amplitude Modulation (AM)
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|---|---|
| Frequencies | 137 MHz,153 kHz |
| Frequency Range | 153 kHz - 137 MHz |
| Mode | AM |
| Modulation | AM |
| ACF | — |
| Emission Designator | — |
| Bandwidth | 10 kHz |
| 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 (military and civilian) and CB radio in some countries. 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 |
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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
Civilian Aircraft - 108 MHzMegaHertz (MHz) 10^6 Hz to 137 MHzMegaHertz (MHz) 10^6 Hz
Military Aircraft - 108 MHzMegaHertz (MHz) 10^6 Hz to 144 MHzMegaHertz (MHz) 10^6 Hz, 225 MHzMegaHertz (MHz) 10^6 Hz to 400 MHzMegaHertz (MHz) 10^6 Hz
CB Radio - 26.965 MHzMegaHertz (MHz) 10^6 Hz to 27.405 MHzMegaHertz (MHz) 10^6 Hz (25.6 MHzMegaHertz (MHz) 10^6 Hz to 27.995 MHzMegaHertz (MHz) 10^6 Hz in some countries)
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.
- Automatic detection
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]
- HF AM Radio with RTL SDR (RTL2832) in Direct Sampling Mode with SDR Sharp
- Aviation Band RTL-SDR SDRSarp in AM mode
Additional Images[edit]
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