Timeline for Where does background noise go on a radio station?
Current License: CC BY-SA 3.0
12 events
| when toggle format | what | by | license | comment | |
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| Oct 29, 2017 at 18:30 | review | Suggested edits | |||
| Oct 29, 2017 at 18:33 | |||||
| Jun 4, 2015 at 9:30 | comment | added | user | This type of question would be on topic on Amateur Radio as it is about the technology of radio. (Specifically, the intricacies of a specific modulation scheme, for example FM; it would be better if you specified if you are talking about FM, AM or something else.) I'm not sure it's really a physics-related question, but then again I'm not a regular here... | |
| Jun 4, 2015 at 8:36 | history | tweeted | twitter.com/#!/StackPhysics/status/606379057257803776 | ||
| Jun 4, 2015 at 5:26 | history | protected | Qmechanic♦ | ||
| Jun 4, 2015 at 4:10 | answer | added | alex.forencich | timeline score: 1 | |
| Jun 3, 2015 at 22:16 | comment | added | AndrejaKo | About the loudness, it seems to me from your description that you're using an FM radio. An AM or SSB radio tuned to a unused frequency, especially if the band being used is "closed", that is to say is suffering from unfavorable radio-wave propagation conditions, will actually produce very quiet static. Due to effects of FM demodulation, you get the effect of very loud static. | |
| Jun 3, 2015 at 19:21 | answer | added | Travis Collins | timeline score: 3 | |
| Jun 3, 2015 at 15:21 | comment | added | dmckee --- ex-moderator kitten | There are actually two parts to this. One is electronic and John has outlines that part below even if it might be better on EE SE. The other involves the logarithmic response of the human hearing systems and might be better on Bio SE. | |
| Jun 3, 2015 at 15:11 | answer | added | John Rennie | timeline score: 21 | |
| Jun 3, 2015 at 15:09 | comment | added | Mason Wheeler | @JonCuster: How does transmitting "the primary frequency" suppress all the background noise? | |
| Jun 3, 2015 at 15:00 | comment | added | Jon Custer | Depending on the answers here, you might also wish to ask over on the amateur radio site, ham.stackexchange.com. But in the meantime, contemplate that the noise is always there. In the 'offline' case, it is entirely possible that the primary frequency was still being transmitted, just no modulation (am or fm) for the radio to translate into music. | |
| Jun 3, 2015 at 14:51 | history | asked | Mason Wheeler | CC BY-SA 3.0 |