Atten AD7042CA digital oscilloscope purchase - Page 1
Forum section: electronics / general

author: alan monro
author_rank: Contributor
timestamp: September 27, 2012, 02:32:33 am
content: Good day ,My old 30 meg BW cro just died , all of the power supply electrolytic s need replacing.So I purchased a new 40 meg digital oscilloscope .Atten AD7042CA. and it is being delivered in a couple of days .It is brand new and $200 . I think the AD7000 series came out in about 2008 .There is not much info anywhere about them as I tend to think they were badged with many other names .(maybe Techtronics ?)Would any one have any knowledge `about the cro as it would be greatly appreciated. Thanks Alan .

author: T4P
author_rank: Super Contributor
timestamp: September 27, 2012, 03:07:45 am
content: Umm, why would you want to buy a 40meg CRO for 200$?

author: alan monro
author_rank: Contributor
timestamp: September 27, 2012, 07:23:02 am
content: Good day T4P.I accidentally referred to my new purchase as a cro . silly me!...................Alan

author: donald
author_rank: Contributor
timestamp: September 27, 2012, 08:50:30 am
content: Howdy, i can not find any info what so ever about that model..are u sure its 100% same one , and where did u mange to purchase this?interested getting a cro (digital/analog) $200 sound quite reasonable for a beginner..

author: Deckert
author_rank: Regular Contributor
timestamp: September 27, 2012, 11:18:53 pm
content: Closest model I can find is the ADS1042CA (which is indeed 40 MHz). I just hope for your sake it's got fairly recent firmware loaded on it, else you may in in for some hassle.--deckert

author: alan monro
author_rank: Contributor
timestamp: September 27, 2012, 11:37:37 pm
content: Quote from: Deckert on September 27, 2012, 11:18:53 pm

author: alan monro
author_rank: Contributor
timestamp: September 27, 2012, 11:47:40 pm
content: Quote from: Deckert on September 27, 2012, 11:18:53 pmYes this would suit a learner with its switchable foolproof automatic functions They have sold a lot of these to TV, electronics servicemen and have had a lot of praise from the same ,.I am a retired technician and have the ability to spot an absolute bargain so thats why a purchased it.......Alan

author: Bored@Work
author_rank: Super Contributor
timestamp: September 28, 2012, 05:39:08 am
content: Excuse me, you sound more like a car salesman, than a retired technician bargain spotter. What you have "spotted", i.e. you want to sell us, is what we in the industry call a lemon. Especially since there aren't many TV servicemen anymore, so Atten couldn't have sold a lot of these DSOs to them.And the autoset function doesn't suit learners, it prevents them from understanding what they are doing.

author: alan monro
author_rank: Contributor
timestamp: September 28, 2012, 06:29:24 am
content: I respect your view no matter how wrong you are. How about doing likewise .Can we keep this a friendly forum .??I am new to this forum and feel that am not welcome already.Is this normal for this particular forum.?................................Alan

author: EEVblog
author_rank: Unknown
timestamp: September 28, 2012, 06:38:55 am
content: Quote from: alan monro on September 28, 2012, 06:29:24 amNo, that's just Bored@Work being his usual cantankerous self.You are welcome, and you'll find this by far the best forum to talk about scopes and other test gear.Dave.

author: htassell
author_rank: Unknown
timestamp: September 28, 2012, 06:41:27 am
content: Hi Alan,It looks on Trio Smartcal's website like it is a cathode ray oscilloscope (albeit colour) rather than an LCD one. Is that the case?I guess it should do the job well if you only need to look at low frequeny signals and don't mind it taking up a bit of bench space. I like the button and knob layout on it. How easy have you found it to use?It also only has 250 MSa/s per channel which isn't huge. Did you consider spending an extra hundred dollars or so and getting yourself one of the 60-100MHz 1GSa/s models available on the market?http://www.triosmartcal.com.au/atten-oscilloscopes/2655-atten-ads7022s-25mhz-2-channel-monochrome-oscilloscope.html

author: EEVblog
author_rank: Unknown
timestamp: September 28, 2012, 06:49:36 am
content: Quote from: htassell on September 28, 2012, 06:41:27 amNo, it's LCD.It's an old model that TrioSmartCal would be clearing out. I saw these type on my last trip there, and one (Atten) was in my videoDave.

author: alan monro
author_rank: Contributor
timestamp: September 28, 2012, 07:07:32 am
content: You are right Dave I think the 7000 lcd series came out 2008 . There was a review in silicon chip Febuary 2008 of the 60 meg version ie AD7062CA and they absolutely loved it . The specs are the same except for the response.I dont mind a new older model as long as it is fantastic and i can afford it.The only real difference between mine and a new model is the new ones are much dearer..................Thanks Dave........................Alan

author: T4P
author_rank: Super Contributor
timestamp: September 28, 2012, 07:11:35 am
content: Are these one of the earlier models that Atten got into a lawsuit with Rigol? (Copying...)

author: htassell
author_rank: Unknown
timestamp: September 28, 2012, 07:29:25 am
content: My mistake on the display - I saw CRO on the description at the top and assumed they were being literal - but missed the specs of the LCD a bit further down.Seems good value for $200 when you consider some of the DSO Nano's get above that price.

author: EEVblog
author_rank: Unknown
timestamp: September 28, 2012, 10:20:50 am
content: Quote from: htassell on September 28, 2012, 07:29:25 amFor sure, bargain if that's all you've got to spend, and don't mind the larger form factor.No contest against a DSONano, which is only useful if you absolutely must have a pocket form factor.$200 for a 40MHz dual channel colour bench scope with TFT was unheard of only a few years ago, even from China. But here it is in Oz. Granted, it's a clearance special. I recon you could probably resell it on ebay for more!Dave.

author: alan monro
author_rank: Contributor
timestamp: September 28, 2012, 10:59:06 pm
content: Quote from: htassell on September 28, 2012, 07:29:25 amIm happy .............................Alan

author: alan monro
author_rank: Contributor
timestamp: September 28, 2012, 11:01:25 pm
content: I wouldnt be at all surprised . Most scopes are more or less coppied .............Alan

author: alan monro
author_rank: Contributor
timestamp: September 28, 2012, 11:23:18 pm
content: Quote from: alan monro on September 28, 2012, 10:59:06 pm

author: T4P
author_rank: Super Contributor
timestamp: September 29, 2012, 01:08:03 am
content: "Most?" Nah. If somebody did they would be in courts now. Unless it was Atten copying something from (eg)Tek in which case under the chinese law is allowed and if the overseas company tries to file a lawsuit, they will automatically lose in china

author: alan monro
author_rank: Contributor
timestamp: September 29, 2012, 11:43:22 pm
content: Quote from: alan monro on September 28, 2012, 10:59:06 pm

author: saturation
author_rank: Super Contributor
timestamp: September 30, 2012, 06:10:55 pm
content: Seems like this scope is in this family from Atten:http://translate.google.com/translate?sl=zh-CN&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&layout=2&eotf=1&u=http%3A%2F%2Fwww.dz17.cn%2Fproduct%2FADS7022CN.htmIt looks more like the early Instek designs. Key is this family of scopes do ~ 250MS/s per channel.

author: alan monro
author_rank: Contributor
timestamp: October 01, 2012, 06:17:27 am
content: Thanks for the information but I could not use it . Somehow unknown by you there is malware attached to that site according to my antivirus . Thanks ............................Alan