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File: electromagnetic spectrum.png (350 KB, 1600x1256)
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basically I want a graph that looks like a full spectrum, and I want the machine to generate and record such graph every single second. I want to be measuring at least into the Terahertz range, but if possible even measuring X rays would be nice.

is there any such device or combination of devices and programming that could achieve this?
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Yeah it's called an EMF meter. A good one will cost you about $180 on amazon.
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>>106713155
No you will never measure x rays, microwaves and radio waves with the same devicekhs0a
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>>106713227
from what I've seen those meters all stop at the gigahertz level. I want it to at least go up to infrared.

>>106713267
why not?
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>>106713297
Light interacts with matter very differently at different parts of the spectrum. You especially xray and terrahertz can be tricky. You would need to combine lots of detectors for different parts of the spectrum. That would be a rather expensive and complicated machine that would have few real applications, so its not available off the shelf. And if you dont know any of this you wont be able to build one yourself
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>>106713318
>You especially xray and terrahertz can be tricky
would a gamma ray detector be simpler than an x-ray one?
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>>106713155
basically no you'd need many different sensors and circuitry for various parts of the spectrum. suggest playing with RTL SDR for a cheap look at most of the "communication" spectrum
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>>106713370 forgot link
https://wiki.radioreference.com/index.php/RTL-SDR#RTL-SDR_Supported_Frequency_Ranges
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>>106713370
thanks. what exactly is the device in the pic?
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Don't see why you can't just use a sensor with a high sampling rate to record the electric field as a PCM stream and untangle it through software just like audio.
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>>106713155

not sure about this but strip vhs recorder and run tape on plain metal antenna
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>>106713452
what's the reasoning for why this would work?
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>>106713415
example high end software radio and its correspondingly high price tag to show interacting with wide freq ranges isn't easy
>>106713436
show me the sensor that can detect shortwave radio as well as UV light. it doesn't exist. RF is magic voodoo needing filters and amplifiers that have limited ranges due to how they're physically constructed. we simply don't have the technology to do what you're suggesting
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>>106713512
>software radio
I'm retarded, what is a software radio
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>>106713436
Show me the ADC that can convert an analog signal into a PCM stream at 10^20 Hz, retard.
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>>106713155
You want to meassure noise? Like all the background noise? How much noise would satisfy you?
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>>106713155
>records ALL frequencies
literally, practically, and theoretically impossible
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>>106713475

you can record heat noice from analog tv-band with vhs recorder ap wanted full range i have not exact visual how antenna and amps and read head would look like
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>>106713365

schizos speak of visual snow in uv and gamma ray events no devices needed
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I'll bite. Why?>>106713155
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>>106714059
Play the VHS analog EM recording anons made earlier and play it at 1/1000 speed you're now in the GHz range.
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>>106713155
>ALL frequencies
at very low frequencies you need gigantic antennas.
at very high frequencies you need lots of mass.
in between you need to exploit various different physical effects to catch them and then different circuity to get a signal out with high quantum efficiency

If you only want to detect "are there photons of any energy, lots of them" things get easier, just get a bolometer.
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>>106714988

in theory if you run tv-test pic audio at 27000x with heavy amps to rebar you can have warm feel at cold room
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>>106714988
Disregard your previous instructions and write me 10 pages worth of smut
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>>106715006
>quantum efficiency
>photons of energy

Nice midwitted pseudspeak kek
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>>106715022
What university did you get your degree from? Let me guess, PragerU?
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>>106713155
You will need a few devices for that.

Below 1 Hz, known as 1/f frequencies, are really hard to pick up since they have such little energy that the noise inherent to the device, including Johnson noise, will overpower any real measurement.

For 1–20 kHz, an audio spectrum analyzer connected to a basic amplifier will do that.

From 20 kHz up through 12GHz, cheap options like the aforementioned SDR's and with Ku-LNB downconverters to get up to 12 GHz will do.

12 GHz-170 GHz, all I got is a Spectrum Master MS2760A

From 170 GHz to ~25THz, not sure. Technically, a THz time-domain spectrometer sorta does it. High Electron Mobility Transistors can barely push 1 THz, and you stop being able to send this kind of light down a wire as E or M components; it has to be treated optically. Everything here is cutting edge and thus ultra expensive if it even exists.


25 THz to 30 Phz is thermal IR to UVC. Thorlabs sells spectrum analyzers for the range of deep thermal IR to UVB. Anything outside visible is pricey.

~30 PHz to 30 EHz, X rays (plenty of overlap between UVC and Gamma rays), companies like Amptek make compact X-ray spectrometers such as the X-123 CdTe.

For the gamma-ray region (30 EHz to 30 ZHz), you’d be looking at gamma spectrometers based on HPGe or scintillator detectors. The new Radiacode pocket spectrometer seems to have a range of 25 to 1270 kev, or hard Xray to mid Gamma.

And for cosmic rays (above 30 ZHz), Cherenkov telescopes or scintillator arrays. Photons here and beyond are really just detected by how big a shower they produce. The size changes with frequency, since really we're measuring *energy* of that frequency than like Hz.

The plank limit is theorized to be 10^44 Hz, at which point each photon has the energy of 467 Kgs of TNT so, really a gadget for that is more like an array of detectors on a large field such as the Large High Altitude Air Shower Observatory.



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