What Frequency Ranges Do You Typically Work With On the Job?

I am always being approached by people who are suggesting topics for Essentials. One of those topics is specific to frequency ranges. So, in order to match this topic to the interests of the community members I am asking you to respond to the poll question:

Of the frequency ranges listed below, which range do you typically work in on the job?

Top Comments

Gough Lui over 6 years ago +3

I mostly work sub-Ghz ("slow" digital, audio) with a little RF. But a lot of the time, I'm working at several-hundred THz. [In case you didn't get the reference ... I mean visible light ] - Gough
michaelkellett over 6 years ago +3

Like (I suspect) most E14 members I use the odd part (like a Bluetooth module) that operates at low GHz. But all my real work is way sub GHz. You need more categories than you have offered. Most of my…
dougw over 6 years ago in reply to Gough Lui +2

Good point. We work from UV through LWIR. But also some interest in X-rays and Gamma rays.

clem57 over 5 years ago

But mine is in the THz too.
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DAB over 6 years ago

I work in RF, IR, visible light and UV.

DAB
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rscasny over 6 years ago in reply to Gough Lui

Funny guy!
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michaelkellett over 6 years ago

Like (I suspect) most E14 members I use the odd part (like a Bluetooth module) that operates at low GHz.

But all my real work is way sub GHz. You need more categories than you have offered.

Most of my stuff is processing analogue data in the 0 - 10MHz range, a little extending up to 100MHz.
My digital things (micros and FPGAs) work in the 1 - 500MHz range.

Techniques and applications change a lot in the lower regions, at the low end (below 20Hz) things like decoupling cap sizes are a problem, in switching supplies (100kHz to a few MHz) then ESR and parasitics become much more significant. And so on all the way up to THz.

MK
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dougw over 6 years ago in reply to Gough Lui

Good point. We work from UV through LWIR. But also some interest in X-rays and Gamma rays.
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Gough Lui over 6 years ago

I mostly work sub-Ghz ("slow" digital, audio) with a little RF.

But a lot of the time, I'm working at several-hundred THz. [In case you didn't get the reference ... I mean visible light ]

- Gough
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dougw over 6 years ago

0 to 20GHz
Most RF work is between 900 MHz and 6GHz.
Of course there is lots of sub GHz circuitry and maybe the odd low frequency RFID
EMI/EMC compliance testing ranges from 10 KHz to 20 GHz.
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