File:AM signal.png
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AM_signal.png (640 × 513 pixels, file size: 336 KB, MIME type: image/png)
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Summary[edit]
| Description |
English: The frequency spectrum of a signal from an AM radio station on the medium wave band. The vertical coordinate is time, the horizontal coordinate is frequency. The central bright line is the radio transmitter's carrier. On either side of it are the "sidebands" that contain the modulation, the information that the radio station is sending, which is an audio signal that represents sound. As time progresses (moving down the graph) the sidebands change, representing the changing tones of the of the speech or music that is being transmitted. Regions in the sidebands near the central carrier represent low audio tones, while regions farther from the carrier represent higher frequency tones. |
| Date | |
| Source | Received with a Sangean ATS909 radio and FFT'd in baudline; image edited in GIMP. |
| Author | Mysid |
Licensing[edit]
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I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:19, 21 June 2007 | | 640 × 513 (336 KB) | Mysid (talk | contribs) | better colors |
| 17:41, 21 April 2007 |  | 381 × 426 (179 KB) | Mysid (talk | contribs) | {{Information |Description=The signal of an AM radio station at ~5970 kHz. Time runs from up to down. |Source=Received with a Sangean ATS909 radio and FFT'd in baudline; image edited in GIMP. |Date=April 21, 2007 |Author= User:Mysid }} [[Category:Rad |
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