Timeline for Can the intelligence message of an FM signal be cross-modulated onto another FM signal due to nonlinearities?
Current License: CC BY-SA 4.0
11 events
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| Jun 27, 2022 at 11:32 | comment | added | Graham Nye | @Frank Added a note on the rusty bolt effect. | |
| Jun 27, 2022 at 11:30 | history | edited | Graham Nye | CC BY-SA 4.0 |
added 171 characters in body
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| Sep 23, 2020 at 20:07 | comment | added | Graham Nye | A diode, perhaps? Two RF signal generators feeding two attenuators. Connect the outputs together then connect them to ground via a signal diode. Connect the output to a receiver/spectrum analyser (possibly via a third attenuator) and view the result. Feed in just enough power to generate intermod without cooking either the diode or the analyser. | |
| Sep 23, 2020 at 20:01 | comment | added | Frank | Hope this isn't off topic in the comments section, but I'm also trying to set up a test and training lab. Is there any such thing as a non-linear test device, either passive or active that you can use to test and demonstrate this is a lab? Mabe a device you imput 2 signals into to observe non-linear affects with real lab test equipment? | |
| Sep 23, 2020 at 19:56 | comment | added | Frank | It already is my job. I'm just trying to get ahead of the curve. :) | |
| Sep 23, 2020 at 19:53 | comment | added | Graham Nye | "I'm not looking to solve any specific problem" Make sure your organisation doesn't find out about your theoretical interest, otherwise it is likely to become your job to fix it. | |
| Sep 23, 2020 at 19:51 | comment | added | Graham Nye | It's both theoretically and practically possible. I'm not familiar with the rules on moving questions but it wouldn't bother me if you did. If you can get the operators to say they are getting transmissions from, say, Fred's Taxi Service, you can 1) eliminate some types of operator error and 2) get a head start on which site and transmitter need fixing. | |
| Sep 23, 2020 at 18:29 | vote | accept | Frank | ||
| Sep 23, 2020 at 17:58 | comment | added | Frank | Also, to answer your question, the operators do recognize the transmissions. We have many channels, and you can fairly easily identitya channel by the type of voice traffic on it. | |
| Sep 23, 2020 at 17:57 | comment | added | Frank | I'm not looking to solve any specific problem, but the issue does come up from time to time. So, this is more of a theoretical issue to find out if it's possible, and if my analysis makes sense. Actually, i'm thinking of moving this to "Signal Processing" stack since they seem to be the more mathematical analitical guys. I'm not sure if that is frowned upon? | |
| Sep 23, 2020 at 17:40 | history | answered | Graham Nye | CC BY-SA 4.0 |