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resources:tools-software:fm-radio [20 Feb 2014 17:12] – created Paul Cercueilresources:tools-software:fm-radio [18 Oct 2014 05:45] – [Monitoring the FM band] Jie Yan
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 **FM channels:** **FM channels:**
   * either 200 kHz wide, with a frequency deviation limited to 150 kHz total,   * either 200 kHz wide, with a frequency deviation limited to 150 kHz total,
-  * or 100 kHz wide, with a frequency deviation limited to 75 MHz total.+  * or 100 kHz wide, with a frequency deviation limited to 75 KHz total.
  
 ===== The sysfs interface ===== ===== The sysfs interface =====
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 {{:resources:tools-software:capture4.png?300|}} {{:resources:tools-software:capture4.png?300|}}
  
-  * **RX LO Frequency**: the base frequency at which the hardware will be tuned. Set to 87.4 MHz (and not 87.5, since 87.5 is the middle of a 200 MHz channel);+  * **RX LO Frequency**: the base frequency at which the hardware will be tuned. Set to 87.4 MHz (and not 87.5, since 87.5 is the middle of a 200 KHz channel);
   * **RF Baudwidth**: the size of the band you want to capture. Here, we want at least a band of 107.9 - 87.5 = 20.4 MHz   * **RF Baudwidth**: the size of the band you want to capture. Here, we want at least a band of 107.9 - 87.5 = 20.4 MHz
   * **Sampling rate**: the number of samples you want to capture (in millions per second). Here we set this to 22, so that we get a resolution of approximatively one hertz.   * **Sampling rate**: the number of samples you want to capture (in millions per second). Here we set this to 22, so that we get a resolution of approximatively one hertz.
resources/tools-software/fm-radio.txt · Last modified: 14 Mar 2016 22:29 by Robin Getz