Author Topic: New GW-Instek 2000 series digiscope-GDS 2202E (Read 23139 times)

Hydrawerk · « **Reply #25 on:** August 08, 2015, 01:13:13 pm »

Quote from: commie on August 07, 2015, 08:56:41 pm

BTW, you appear to be concerned that there are no Vertical/Horizontal fine controls (note: in GDS-2000E) , well there is, but you need to select them in software via a softkey.

I am sure that there are no fine vertical or horizontal controls accessible via a softkey. There is no such feature in the user manual. If you have found it, please provide a screenshot from the user manual.

commie · « **Reply #26 on:** August 08, 2015, 02:08:15 pm »

Quote from: Hydrawerk on August 08, 2015, 01:13:13 pm

I am sure that there are no fine vertical or horizontal controls accessible via a softkey. There is no such feature in the user manual. If you have found it, please provide a screenshot from the user manual.

Hi Hydrawerk,

You are correct, there is no fine controls for the vertical and horizontal, however if you invoke waveform play and stop then a whole bunch of options appear for the softkey selection, one key is dedicated for 'zoom position' fine or coarse selection.So you can toggle between horizontal coarse/fine adjustments when you are in waveform play/stop/zoom mode, very powerful feature.

If you are viewing a waveform on screen, with nothing selected, then there is no fine control except by pushing in the horizontal/verticle control knobs gets you back to the centre screen in an instant.Can I ask, why you would want fine controls for the horizontal/vertical under nomal waveform viewing, i.e., with nothing selected? I have pre owned quite few scopes in my time and I cannot remember ever having 4 knobs to control the horizontal/vertical position?

Hydrawerk · « **Reply #27 on:** August 08, 2015, 04:06:15 pm »

Quote

Can I ask, why you would want fine controls for the horizontal/vertical under nomal waveform viewing

Because I like it and it is useful. Most scopes have at least fine (=Vernier) vertical controls. Rigol, Keysight, Siglent, Tektronix...

commie · « **Reply #28 on:** August 08, 2015, 04:16:15 pm »

Quote from: Hydrawerk on August 08, 2015, 04:06:15 pm

Because I like it and it is useful.

Okay, yeah, I never knew that, I guess I've learned a new scope feature then.

Hydrawerk · « **Reply #29 on:** August 09, 2015, 11:56:31 am »

~~Their web seems to be out of order.~~ http://www.gwinstek.com/

Hydrawerk · « **Reply #30 on:** August 10, 2015, 06:51:11 pm »

The video works fine.

Hey, they should buy a HD camera. 640×480 was OK back in 2002.

Wuerstchenhund · « **Reply #31 on:** August 11, 2015, 08:51:28 pm »

Quote from: Hydrawerk on August 10, 2015, 06:51:11 pm

Hey, they should buy a HD camera. 640×480 was OK back in 2002.

I guess they filmed in it VHS. But hey, at least it's in color, not black and white

Hydrawerk · « **Reply #32 on:** August 12, 2015, 07:03:33 pm »

GDS-1000B is said to have waveform update rate up to 50 000wfms/s, but there is no trigger output and there are no conditions specified at all.

commie · « **Reply #33 on:** August 12, 2015, 07:20:51 pm »

Quote from: Hydrawerk on August 12, 2015, 07:03:33 pm

GDS-1000B is said to have waveform update rate up to 50 000wfms/s, but there is no trigger output and there are no conditions specified at all.

I assume you looking for a BNC with 50KHz signal on it's output sync'd to it's waveform update? I've just had a look on mine the GDS 2202E 120k waveforms/sec and there are two BNC's, one is for 'Cal', the other for 'go-no-go' output.

If my assumption above is correct, why would you want a sync. output anyway?

Hydrawerk · « **Reply #34 on:** August 13, 2015, 07:45:53 pm »

Quote

I assume you looking for a BNC with 50KHz signal on it's output sync'd to it's waveform update?

Yes.

Quote

If my assumption above is correct, why would you want a sync. output anyway?

Because it is quite common on scopes made by Owon, Keysight (Agilent) or Rigol.
It is useful for checking the actual waveform update rate.

dadler · « **Reply #35 on:** August 13, 2015, 08:15:46 pm »

It's also useful for correlating data with external devices, such as a logic analyzer.

Wuerstchenhund · « **Reply #36 on:** August 13, 2015, 09:05:59 pm »

Quote from: commie on August 12, 2015, 07:20:51 pm

I assume you looking for a BNC with 50KHz signal on it's output sync'd to it's waveform update? I've just had a look on mine the GDS 2202E 120k waveforms/sec and there are two BNC's, one is for 'Cal', the other for 'go-no-go' output.

If my assumption above is correct, why would you want a sync. output anyway?

It's not a "sync" output, the output Hydrawerk is looking for is called a "trigger output", which essentially signals when the scope has been triggered and which has been a standard port on most scopes (aside maybe from the bottom-of-the-barrel class) for ages. As the trigger rate is identical to the waveform update rate the trigger out can be used to measure the waveform update rate of a scope, amongst other things.

commie · « **Reply #37 on:** August 13, 2015, 09:26:44 pm »

The above replies are acknowledged, well it seems not having this signal doesn't appear to be any great handicap.At the end of the day, if you need the latter bnc out then don't buy the GDS-2202E scope.

As you all know, I've only had the GDS-2202E a couple of days so I'm still figuring out what it can do for me and I can honestly say it's one hellava nice scope, the more I use it the more I like it and I've got 200MHz bandwidth to pla ^-^y with, yeah!

My Rigol DS1104Z(unhacked with two options activated), Ermmm.. thinking of Ebaying it. What do you think?

dadler · « **Reply #38 on:** August 13, 2015, 09:34:07 pm »

I still use my DS1054z in the garage as my beater. If you have no use for it and truly think it doesn't offer any advantages over your new scope, perhaps sell it.

I've found that having multiple is useful as these things seem to break =P hehe

commie · « **Reply #39 on:** August 15, 2015, 03:02:10 pm »

Quote from: Hydrawerk on August 08, 2015, 04:06:15 pm

Quote
Can I ask, why you would want fine controls for the horizontal/vertical under nomal waveform viewing
Because I like it and it is useful. Most scopes have at least fine (=Vernier) vertical controls. Rigol, Keysight, Siglent, Tektronix...

Hi Hydrawerk,

With regards to my GDS2202E not having vertical/horizontal fine controls, I have been having a little play and found for large excursions of vertical the response speeds up, and for small excursions it slows right down which is the same as having fine/coarse controls except it's automatic on the GDS2202E scope. I maintain, the GDS2202E is a good scope.

Hydrawerk · « **Reply #40 on:** August 16, 2015, 01:25:29 pm »

The scope is OK for the price. http://www.tme.eu/en/katalog/#id_category=112665&s_field=artykul&s_order=ASC&visible_params=2%2C2101%2C2102%2C383%2C1813%2C1939%2C55%2C74%2C72&used_params=2%3A83681%3B55%3A377926%3B

fanOfeeDIY · « **Reply #41 on:** August 16, 2015, 03:54:16 pm »

Hi commie,

GDS-2000E is listed on my chart and seem to me the only model has many serial decoding as standard feature.

https://www.eevblog.com/forum/testgear/digital-oscilloscope-comparison-chart/msg678378/#msg678378

commie · « **Reply #42 on:** August 16, 2015, 04:27:00 pm »

Quote from: fanOfeeDIY on August 16, 2015, 03:54:16 pm

Hi commie,

GDS-2000E is listed on my chart and seem to me the only model has many serial decoding as standard feature.

Yep, it's currently the only scope with serial bus decoding as a standard feature and it does not come with any options, all the options are included standard. Rigol have responded by releasing all 4 of their options for the price of one(DS2202A).I payed £946+vat for my GDS2202E, equivalent Rigol DS2202A+all options would cost me approx. £1200.00+vat.

Hydrawerk · « **Reply #43 on:** August 16, 2015, 04:33:42 pm »

Yes, and GDS-2000E seems to have better tools for long record management like Play/Pause and Search.

hansan · « **Reply #44 on:** December 09, 2015, 08:08:49 pm »

Hi Commie,

How do you like your GDS-2202E oscilloscope?

I am looking for a better low range 4 channel 100MHz scope and the GDS-2204E is on my short list.
(The 200MHz model is only 40 Euros more expensive compared with the 100MHz model.)

I did not see any real review yet of this scope, therefore I would like to ask you and other users how this scope behaves in use to get a bit better picture, before I make a decision.

There is a lot of voices on the forum pushing for or Rigol or for the Tek/HP/LeCroy/R&S brands. Instek does not seem to be so popular.

Greetings!

Hydrawerk · « **Reply #45 on:** December 09, 2015, 09:54:48 pm »

GW Instek is a bit weird, not so much bang per buck, but their scopes do have decent PSU with good caps. The scope will live for ages.

Mark_O · « **Reply #46 on:** December 10, 2015, 06:16:16 am »

Quote from: commie on August 15, 2015, 03:02:10 pm

With regards to my GDS2202E not having vertical/horizontal fine controls, I have been having a little play and found for large excursions of vertical the response speeds up, and for small excursions it slows right down which is the same as having fine/coarse controls except it's automatic on the GDS2202E scope.

That's not what Hydra was referring to. Vernier controls are not for managing the rate of change (which you described), but rather setting the scale to intermediate values beyond the fixed 1/2/5 settings. So, e.g. if you wanted to set the vertical to 185 mV/div, that would be possible on most other scopes, but not on the GDS2000E series. You're locked into 50/100/200/500 mV/div, etc.

And anticipating your reply...

Just because you may never have used such a capability, and others may not use it often, does not mean it is not a valuable and useful capability to have. It is unfortunate that Instek failed to incorporate it, since the scope is so good in many other ways, and it is not difficult to implement.


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Author Topic: New GW-Instek 2000 series digiscope-GDS 2202E (Read 23139 times)

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