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mission:log:2014:08:08:darc-side-of-munich-hunting-fm-broadcasts-for-bus-and-tram-display-information-on-90-mhz [2015-05-22 09:18] – [Broadcast FM Primer] chrono | mission:log:2014:08:08:darc-side-of-munich-hunting-fm-broadcasts-for-bus-and-tram-display-information-on-90-mhz [2016-04-13 06:36] (current) – [Broadcast FM Primer] chrono | ||
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**Stereo Difference Signal** | **Stereo Difference Signal** | ||
- | The stereo difference signal (L−R) is modulated onto a 38 kHz double-sideband suppressed-carrier (DSB-SC) signal occupying the baseband range of 23 to 53 kHz. A 19 kHz pilot tone, at exactly half the 38 kHz sub-carrier frequency and with a precise phase relationship to it, is also generated. This is transmitted at 8–10% of overall modulation level and used by the receiver to regenerate the 38 kHz sub-carrier with the correct phase. | + | The stereo difference signal (L−R) is modulated onto a 38 kHz double-sideband suppressed-carrier (DSB-SC) signal occupying the baseband range of 23 to 53 kHz. |
**RDS** | **RDS** | ||
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<WRAP round download> | <WRAP round download> | ||
**Download DARC-Hunter.grc File:**\\ | **Download DARC-Hunter.grc File:**\\ | ||
- | coming after cleanup | + | [[https:// |
</ | </ | ||
==== Negative reference stereo FM station ==== | ==== Negative reference stereo FM station ==== | ||
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===== Updates ===== | ===== Updates ===== | ||
- | [[https:// | + | * [[https:// |
+ | * [[mission: | ||
{{tag> | {{tag> |