Atten 1102CAL 100Mhz 1GSa/s Oscilloscope - Page 1
Forum section: electronics / general

author: SolderSplashLabs
author_rank: Newbie
timestamp: January 15, 2012, 04:23:24 pm
content: Hi All,I've been watching Dave's videos for a while now and thought I would get involved here as well.I just brought an Atten 1102CAL Oscillioscope off ebay. Very cheap, Spec looked good so I gave it a punt. It arrived very well packed and with out UK import duty!I've had it about a week now, I was pretty happy to start with. The screen is great, viewing angle is good all round and it's 7 inches big!PC Software, Easyscope is a bit crap but that doesn't really bother me.The downside,On both channels with no probes attached if you move the vertical position of the trace it moves away from zero (below) instead of staying at zero. This causes the measurement functions to report incorrect voltages. Now there should be no difference between a static measurement in the middle of the screen and one moved to the bottom of the screen, so this looks like a software bug to me.I've repeated this with a probe clipped to it's own ground and the Scopes gnd test point, the result is the same.At 2v's/dev the Vrms reads 0 whilst the trace is in the centre of the screen. Move the trace to near the bottom of the screen (at -6v) and now the Vrms read 400mV.10v - 800mV RMS5v - 600mV RMS2v - 400mV RMS1v - 40mV RMS500mA - 20mV RMSAgain zero the channel and at all voltages the vRMS is 0.00vTried to contact Atten for a firmware update but had no response. Contacted the ebay distributor and they suggest sending it back to China, I'm not sure i want to do that so I might have to live with this issue. They also said Atten won't distribute firmware updates!Unless someone out there has some Atten firmware.My firmware version is 3.01.01.31Hardware Version 6-4-2.1

author: saturation
author_rank: Super Contributor
timestamp: January 15, 2012, 05:01:59 pm
content: Atten also makes Siglent. Did you see this?http://cseb.hu/siglent/

author: SolderSplashLabs
author_rank: Newbie
timestamp: January 15, 2012, 05:15:37 pm
content: Quote from: saturation on January 15, 2012, 05:01:59 pmThanks I'll have a read

author: Unknown
author_rank: Unknown
timestamp: January 15, 2012, 06:01:22 pm
content: Did you try signal path compensation (or auto calibration or whatever Atten calls it) after giving it some time to warm up?

author: SolderSplashLabs
author_rank: Newbie
timestamp: January 15, 2012, 06:12:16 pm
content: Quote from: alm on January 15, 2012, 06:01:22 pmI did yes, had it on all day before I noticed the issue, ran the auto calibration and it's the same afterwards.

author: Taburn
author_rank: Newbie
timestamp: March 27, 2012, 10:38:01 pm
content: I was wondering if this was resolved? I was thinking of buying one of these scopes from eBay.(Here's the add if you're interested:http://www.ebay.ca/itm/ATTEN-ADS1102CAL-100M-Hz-1G-Digital-Oscilloscope-7-LCD-/320874183698?pt=BI_Oscilloscopes&hash=item4ab5977c12)

author: saturation
author_rank: Super Contributor
timestamp: March 28, 2012, 12:06:11 am
content: If you're in Canada, getting a Rigol 1052e, even with the smaller screen, is less risky and a better measuring instrument despite its flaws.http://www.ebay.ca/itm/Rigol-Oscilloscope-50MHz-DS1052E-1G-SG-1M-USA-warranty-/290423301829?pt=BI_Oscilloscopes&hash=item439e93e6c5Quote from: Taburn on March 27, 2012, 10:38:01 pm

author: Taburn
author_rank: Newbie
timestamp: March 29, 2012, 02:47:51 am
content: Thanks for the reply Saturation.The only thing that makes me hesitate to take your advice is that the Rigol is a 50 MHz scope. Is there much difference between 50 MHz and 100 MHz? (I'm sorry, I'm rather new at this)

author: WBB
author_rank: Regular Contributor
timestamp: March 29, 2012, 03:13:44 am
content: The 100mhz rigol is only a few dollars more than the 50mhz model. And I would agree Rigol seems a much safer buy than Atten.

author: T4P
author_rank: Super Contributor
timestamp: March 29, 2012, 03:05:31 pm
content: Quote from: WBB on March 29, 2012, 03:13:44 amThere's quite a significant difference on proper retailers .They charge starting from 514$ , and anything below that really isn't the right one to buy .

author: saturation
author_rank: Super Contributor
timestamp: March 29, 2012, 05:34:53 pm
content: wbb is right, I forgot. e.g.http://www.ebay.ca/itm/New-RIGOL-DS1102E-100MHz-Oscilloscope-Free-Bag-/251022791781?pt=BI_Oscilloscopes&hash=item3a721fd465Saelig is an authorized Rigol dealer, 1102e for the same price as the 1052e quoted earlier.Quote from: WBB on March 29, 2012, 03:13:44 amQuote from: Taburn on March 29, 2012, 02:47:51 am