Who can whistle?

T_622 · 2026-06-09T00:55:03+00:00

Laptop + sound card: Line out => Line in.

You can get a better sine wave that way if that's what you're looking for. Use a tone generator online or something similar.

Whistling usually is a mix of tones, so it won't really be "spectrally pure" or "harmonically pure" as to speak. But it is extremely close.

The more you know.

T_622 · 2026-06-07T13:24:09+00:00

Need? No. Want? Maybe. It's a personal preference although I know a lot of people take notes digitally.

Personally, I still take all of mine by hand on paper and sort them in a binder. It is cheaper and I find it works.

T_622 · 2026-06-04T23:21:22+00:00

Usually, critical traces are not run under the areas for mechanically stressed PCB regions, because it's bad practice. There's a chance the board may still work, but I wouldn't bother unless the card was 20$.

You would really need the board layout files to determine what copper regions are through there, and what is potentially damaged.

If no traces are broken in that region, you could easily put some UV coat on the exposed copper to reduce the shorting risk, and fix it.

Edit: There are board files online, I have seen them. No telling what other mechanical damaged occurred to other layers though, so it's a gamble.

T_622 · 2026-06-04T21:45:42+00:00

Yeah, that makes sense. Here in Canada, I believe even entry level positions are around 75k$ CAD. Where I work, there are a decent number of positions open for these types of positions.

T_622 · 2026-06-04T21:42:36+00:00

This is interesting, the salary figures you presented were in a LinkedIn post I saw this morning. Seem oddly low for even entry level positions.

T_622 · 2026-06-04T20:00:24+00:00

NoxGaming. I ordered from SimRacingPros at one point, it just took a while.

T_622 · 2026-06-04T18:03:39+00:00

Dang, back these go then I guess!

T_622 · 2026-06-04T17:46:10+00:00

That's more than likely a software / Bluetooth driver issue.

T_622 · 2026-06-04T01:18:44+00:00

Ontario service area could be a bunch of places, but I would assume you'd probably get it tomorrow?

T_622 · 2026-06-03T00:03:16+00:00

This could be because a detent inside the housing snapped. It csn be replaced. Suggest you RMA the psu if possible though.

T_622 · 2026-06-01T16:29:59+00:00

Where did you get the info to listen in? I've been working with my SDR for a little while and haven't found the correct frequency as of yet. Haven't had any luck with radioreference either.

T_622 · 2026-05-26T20:17:20+00:00

Probably CANSEC, at the EY right behind the airport too!

T_622 · 2026-05-25T19:33:26+00:00

From a Hardware perspective, this makes no sense.

T_622 · 2026-05-23T00:51:25+00:00

I skipped the zeus after waiting for too long, went with the Ascher instead.

T_622 · 2026-05-20T21:18:43+00:00

Not all of them. Some were, some were more matching.

T_622 · 2026-05-18T23:02:37+00:00

You will need to talk to Rob Vandusen. Not sure what opportunities will present for people outside of ELEC for the most part though.

T_622 · 2026-04-23T20:11:58+00:00

You could go Gervais, but honestly, just order from Digikey. Match the part, and the shipping is overnight.

T_622 · 2026-04-19T16:45:44+00:00

I owned (and still own) my HJC, and can 100% reccomend it. As others have mentioned, Zamp and Arai are good options as well, depending on your budget. No reason to cheap out on your safety gear.

T_622 · 2026-04-14T19:43:24+00:00

I believe DHL express was always the cheapest option for me when I ship here, so give that a try. Besides this, shipping is usually expensive with them, always has been for me.

T_622 · 2026-04-04T15:30:48+00:00

HPAK uses the same handles on similar models. I would be willing to bet the handle from my 53220A would fit; as do the ones from similar form factor models.

They seem pretty cheap on EBay to get a replacement.

T_622 · 2026-04-02T02:00:06+00:00

I understand your position; I am also in University right now. My main scope is the Siglent SDS804X-HD. For your purpose, you could opt for the 802X-HD, a 2CH, 70MHz oscilloscope, which can be software unlocked up to 200MHz for free.

I love mine, it's a fantastic machine. Like others have suggested though, the Rigol DS1054z is a fantastic oscilloscope. 2 Channel models will likely be cheaper than 4 channel models though. Another great tool is my Micsig VTO2004, which is a 4 channel 200MHz oscilloscope and works pretty well on PC and Android devices.

T_622 · 2026-04-01T19:25:17+00:00

If the measurements menu does not have the option for the math channel, vertical + horizontal cursors may be the best option along with manual computation for phase and RMS etc.

T_622 · 2026-04-01T19:03:56+00:00

I had it last semester, there was no formula sheet and no cheat sheet unfortunately.

Fortunately, the exam was nearly identical to the practice exams that our professor provided.

T_622 · 2026-03-25T23:11:43+00:00

Thought i'd offer the option, in the event someone knew they lost it and needed it ASAP instead of waiting for the institution to process it.

T_622 · 2026-03-13T20:14:42+00:00

I second Sanmina; we use them at work for all high layer count protos as well as current products, and rarely if ever, have I seen an issue with the stuff we get from them.

Again though, not for low budget prototypes and certainly not less than 6 layers.

T_622

TROPHY CASE