EEVblog #310 - Cheap Siglent and Agilent scopes

A quick look at some cheap scopes at TrioSmartCal with Charles.
The Agilent DSO1052B
The Siglent SDS1204CFL
The Siglent SDS1022C / Atten 1022CL+ / BK Precision 2530B
The Unique UQ2062C

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[EEVblog]

Link is in the description. Sydney based. Probably better options for non-oz buyers of course.

[uni-byte]

An Irish guy selling Chinese equipment in Australia. Priceless .. global style.

[johnnyfp]

The Unique UQ2062C is a colour version of the uni-t ut2025. The buttons, screen layout are identical (just not in colour).

[Pagweb]

Not in the United States. I asked the manager of the college of engineers at my university if I could have one of the old oscilloscopes and he told me their not allow to sell them or give them away. He said that by law they have to dispose of any equipment because they were bought with tax payer's money and it's not fair to just give them away. I know; it didn't make sense to me either.

[austinmarangoni]

Don't get me wrong I love Dave's videos, they're great! I was just marveling at the fact that he said it was a "quick one" and yet it was 15 minutes. Its not a complaint just merely an observation that I found humerous. Sorry if I upset anyone!

[KozmykJ]

I had a Siglent SDS1102CM last year. I liked the features it had to offer but I didn't like the way the triggering couldn't handle noisy waveforms. The display would jitter. I returned it and got a Rigol DS1052E instead, no jitter on that one. Siglent customer support were very easy to deal with though.

[aqib]

@3:54 turning unused channels off via auto set, my OLD school HP 54111D digitiising Oscilloscope does that

[altimmons]

“Cheap”. His cheap and my cheap are totally different. Now I know the good stuff is gonna cost but it doesn’t mean I can afford it.

[ssjgohan]

First of all, you need an electromagnetically quiet room, which usually also means an acoustically and optically 'quiet' room (because all light sources, depending on what frequencies you're after, emit some RF, and sound waves cause abberations in the test equipment). Then you usually use a branching antenna, shielded BNCs to the outside and an RF spectrum analyzer (nothing fancy here) + spectrum calibration source. Make sure your DUT is tested in all orientations.

[Orcinusx]

Yeah, I'd love to hear Dave's opinion on the Owon SDS-series of scopes! Even a teardown and a full review!

[douro]

It's amazing that you can get them that inexpensively nowadays with waveform intensity control.

[westin]

What kind of equipment would be needed to check for RF emmisions from electronic devices? I want to see the intensity of the RF and the frequency of the RF. The frequency coverage would be from a 1kHz to 10Ghz. I assume this would be a spectrum analyzer of some sort. What type of attennas would be used to cover that range of frequencies.

[Nermash]

There is a lot of info on the Eevblog forum. I own one and it is great. Big screen, high res, responsive, 10 MB memory at full speed. Only downside is low waveforms/s...

[demonbreed]

Thanks, I have bought myself a SIGLENT SDS1022C for £110 on eBay second hand, cant wait to get my hands on it :)

[Topy]

The UQ2062C looks a lot like a Uni-T, which is also an OEM for Voltcraft in Germany among others.

[Nermash]

To be honest, I haven't compared the specs or anything, I just noticed you saying "pretty much the same speed as the Agilent one I just tore down" :)

[mdcplas]

I can just hear Dave saying to himself " DUDE go away I know what I am doing, Your a salesman I am a engineer"

[robbie]

do you mean they use a piece for a long time before throwing it away, or they stockpile equipment, and throw it away all at once? because if it's the former, i wouldn't have to wait a long time, i'd just be getting old equipment.

[esavarem]

I wish semi-good oscilloscopes were cheaper. I own a Agilent U2702A (2 channel 200MHz USB Scope), and I'd sometimes like a a nice standalone 4ch scope, with possibly basic protocol analyzing. Digital inputs wouldn't hurt either (eg. when trying to debug something with 8+3 parallel lines). But currently anything above couple of hundreds is too much for me

[EEVblog]

The next video will step that up a tad... ;-)