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The Taylorator – All Your Frequencies Are Belong to Us

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Re: The Taylorator – All Your Frequencies Are Belong to Us

#23

With some filtering on the output to knock down harmonics and aliasing noise, and as long as the power output is low enough, this could actually be legal in the US. IANAL, etc, but this is my understanding: It's actually ridiculously tricky to measure transmitter power output in the terms that the FCC regs are written in, but the rule of thumb is that, given the receiver sensitivity of a typical radio, if you lose th…

The main problem with this line of reasoning is that it neglects important parts defined elsewhere making it seem like this is legal when its not. IANAL, but I do hang out with a lot of hammies. You can't help but absorb a lot of technical stuff with them around.

Like for example, https://www.fcc.gov/enforcement/areas/jammers

It need not saturate the bands, you technically are in violation the moment a non-licensed entity has caused interference to a licensed entity.

Willful is a pretty low bar since general intent can be derived from any related negligent acts. Its pretty safe to say transmitting on these bands without a license is illegal, and yes its a fairly big deal.

Most of the public radio spectrum has been monitored, and archived for later retrieval if circumstances dictate since the 60s. There are services that aggregate this data and make realtime info available globally from satellite systems. Trilateration of signals is fairly trivial in most cases.

You may not get caught if you always stay below the noise floor, but you can't really have any real use of the spectrum in doing so, and algorithmic scanning of structured signals is always improving.

It is really negligent to make it seem like these things are legal, when they aren't, and the author should get in trouble for that.

A simple disclaimer isn't going to cut it when then primary purpose is effectively breaking the law in many civilized nations.

Re: The Taylorator – All Your Frequencies Are Belong to Us

#24

With some filtering on the output to knock down harmonics and aliasing noise, and as long as the power output is low enough, this could actually be legal in the US. IANAL, etc, but this is my understanding: It's actually ridiculously tricky to measure transmitter power output in the terms that the FCC regs are written in, but the rule of thumb is that, given the receiver sensitivity of a typical radio, if you lose th…

> if you lose the signal when you're more than 200 feet from the transmitter, you're probably in the clear.

With the FCC maybe, but someone far worse will be interested, the RIAA. It's copyright infringement by illegal broadcast.

Re: The Taylorator – All Your Frequencies Are Belong to Us

#25
post #6

I remember going to the drive-in movie theater in the 80's. You had to tune your car radio to a specific frequency to hear the movie audio. If this device had existed back then, you wouldn't have needed to tune your car radio at all. I doubt the neighbors would have liked that though. As an aside, I remember being jealous of the neighbors because they got to watch all these movies for essentially free. The irony is t…

> you wouldn't have needed to tune your car radio at all You still need to tune it but there are many "center frequencies" that can be tuned instead of just one. So, you wouldn't have to tune far but you would still have to tune :) If you had a knob like most radios in the 80's it would save you from cranking the knob several times to get the dial into the right range before fine-tuning.

I think the theory is that every car that has an FM radio has it tuned to something. So no matter what, as soon as you put on the FM radio, it would have the audio.

Re: The Taylorator – All Your Frequencies Are Belong to Us

#26

With some filtering on the output to knock down harmonics and aliasing noise, and as long as the power output is low enough, this could actually be legal in the US. IANAL, etc, but this is my understanding: It's actually ridiculously tricky to measure transmitter power output in the terms that the FCC regs are written in, but the rule of thumb is that, given the receiver sensitivity of a typical radio, if you lose th…

And a wonderful April Fool's prank, too!

Re: The Taylorator – All Your Frequencies Are Belong to Us

#29

With some filtering on the output to knock down harmonics and aliasing noise, and as long as the power output is low enough, this could actually be legal in the US. IANAL, etc, but this is my understanding: It's actually ridiculously tricky to measure transmitter power output in the terms that the FCC regs are written in, but the rule of thumb is that, given the receiver sensitivity of a typical radio, if you lose th…

> if you lose the signal when you're more than 200 feet from the transmitter, you're probably in the clear. With the FCC maybe, but someone far worse will be interested, the RIAA. It's copyright infringement by illegal broadcast.

If it's intended for personal consumption it's fine. It's not copyright infringement to hear my neighbor's stereo if it's a bit loud. It is if he's using it commercially for hosting a block party selling tickets it's a problem.

Re: The Taylorator – All Your Frequencies Are Belong to Us

#30
> an SDR is that a sound card takes real-valued samples, and an SDR takes complex-valued samples

Coming from a DAW background this concept was incredibly interesting. I am curious if stereo audio has ever been represented in this way, or if it is generally just used for the half sample rate?

Actually thinking on this now I guess that doesn't really make sense. But still really interested in this alternate view of sampling waveforms.

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