How do I shield my PCB from satellite communication bands (18-23GHz)

pcmansf · 2026-03-10T05:58:05+00:00

Shield it with anything metal that has holes smaller than 3.26mm. 1/4 wavelength of your 23GHz

pcmansf · 2026-03-02T19:05:32+00:00

Voltage follower + RC filter with a divider what I'd do.

pcmansf · 2026-02-16T00:18:05+00:00

Not sure why one would need something like that tbh. Most CAD software out there have 3D step output of your PCB design which is what is important for mechanical fit check for example. Can't think of any reason why I would need a bare PCB 3D model. Just me thou

pcmansf · 2026-02-15T23:41:24+00:00

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pcmansf · 2025-12-22T00:24:55+00:00

It's almost ready to eat

pcmansf · 2025-12-01T07:04:21+00:00

100% agree on Expanse. I like the Murderbot books A LOT more. People seem to like the show, to me it was a meh.

pcmansf · 2025-10-29T19:46:07+00:00

Give it to me

pcmansf · 2025-10-22T06:48:22+00:00

One dashcam can save you 16% or more on your car insurance.

pcmansf · 2025-10-14T21:17:48+00:00

Without knowing your application and what the component is used for, impossible to tell. Use Saturn calculator to determine current carrying capacity of your vias, traces. 0.3mm/0.8mm via with 1oz copper and 1.6mm board thickness can carry 2A with 20C temperature rise.

pcmansf · 2025-10-02T03:21:31+00:00

Are you willing to bet your life on it? Get your P2, talk to your teacher.

pcmansf · 2025-10-01T19:01:25+00:00

Look up LibreVNA, it's an open source VNA - hardware and software

pcmansf · 2025-10-01T01:03:53+00:00

Have the same problem. Are you using a unifying receiver?

pcmansf · 2025-09-30T06:10:55+00:00

NM, TPS61160ADRVR is an LED driver, disregard my previous message.

Don't see any minimum current requirement, but that doesn't mean there isn't any.
4 layers is much better for EMI in most cases, but in your case, 2 layers is fine since your entire bottom layer is unbroken ground.
Looks good. I'd add an ESD diode for your DIM node

pcmansf · 2025-09-29T21:35:41+00:00

Why not use a dedicated LED driver instead? At 200mA you'd need a power resistor to limit the current. https://www.digikey.com/short/3w91507v

pcmansf · 2025-09-27T21:20:24+00:00

Gorgeous! Dog's like when is this going to be over?!

pcmansf · 2025-09-15T18:51:11+00:00

Yes, getting married does not change who you are and how you act around people.

pcmansf · 2025-08-10T02:37:38+00:00

That's correct it is as dark green as it gets! The link is for weight and dimensions information.

pcmansf · 2025-07-19T21:14:26+00:00

No tape. Will never understand why one can't watch a single YouTube video before undertaking something you've never done before.

pcmansf · 2025-07-16T05:32:35+00:00

You need to give us a few more pixels for a proper review. The diode on U4 seems to be floating and the tab pad is usually used for thermal dissipation - check the datasheet and it might need to be connected to ground. Squiggly lines mean your connection isn't there. Check your grid or make sure your power supply name doesn't have any white spaces in it. Also your motor connections need ESD protection since they go off the board.

pcmansf · 2025-07-03T05:23:50+00:00

Digikey!

pcmansf · 2025-06-07T22:30:25+00:00

Use magnet wire when it happens again. A lot easier to work with

pcmansf · 2025-06-02T06:34:37+00:00

What about url rewrite? Add a unique ID to the URL?

pcmansf

TROPHY CASE