is atten atf20b function generator any good? - Page 1
Forum section: electronics / testgear

author: hussamaldean
author_rank: Unknown
timestamp: April 20, 2019, 03:48:02 am
content: Hi allI am planning to buy this function and according to the manual, it looks promising and it will be great addition to my lab since my current DDS has limited square and triangle up to 500KHz but this can go higherdid anybody use it before or shall I look for another brand ?regards

author: Daruosha
author_rank: Regular Contributor
timestamp: April 20, 2019, 08:09:04 pm
content: Generally it's much better if you buy something with more community support and known by other people. With this model there's no support, firmware update and who knows how many bugs does it have.If you're looking for the cheapest of the cheap, buy something like Feeltech 3200 series. Or if you can afford, get a Rigol or Siglent ones.How much does it cost in your country and what other brands are available?

author: hussamaldean
author_rank: Unknown
timestamp: April 21, 2019, 04:09:44 am
content: Quote from: Daruosha on April 20, 2019, 08:09:04 pmif this one costs like 600$ then forget about rigol or siglent

author: tautech
author_rank: Super Contributor
timestamp: April 21, 2019, 04:46:55 am
content: Quote from: hussamaldean on April 21, 2019, 04:09:44 amThe 30 MHz SDG1032X is $359Ramp is still 500 KHz max but Square to full 30 MHz frequency.Datasheet:https://www.siglenteu.com/download/2412/

author: boB
author_rank: Frequent Contributor
timestamp: April 21, 2019, 04:49:03 am
content: We have a couple of Atten oscilloscopes.They are awful IMO

author: hussamaldean
author_rank: Unknown
timestamp: April 21, 2019, 04:55:19 am
content: Quote from: tautech on April 21, 2019, 04:46:55 amyeah I know but siglent is not available here in Iraq or if it is available it would be like 1K+ $prices here is by three timesQuote from: boB on April 21, 2019, 04:49:03 amwell, I do appreciate your opinion. however, this is the best what I could found here

author: tautech
author_rank: Super Contributor
timestamp: April 21, 2019, 04:59:12 am
content: Quote from: hussamaldean on April 21, 2019, 04:55:19 amHave you looked for other suppliers ?https://www.siglenteu.com/how-to-buy/

author: hussamaldean
author_rank: Unknown
timestamp: April 21, 2019, 05:01:05 am
content: Quote from: tautech on April 21, 2019, 04:59:12 amman, I am in Iraq not Germnay 🤣🤣

author: tautech
author_rank: Super Contributor
timestamp: April 21, 2019, 05:13:31 am
content: I know.So Norm Electronics Ltd in Greece is closest to you.I can find out how the factory supplies your part of the world if you like. Sometimes not all their distributors are listed on their web pages.

author: hussamaldean
author_rank: Unknown
timestamp: April 21, 2019, 05:19:26 am
content: Quote from: tautech on April 21, 2019, 05:13:31 amthe problem is not the availability or closest dealerthe problem with the boarder agency which I have to pay a lot as bribe just to get it in time otherwise I have to wait like 4 months

author: tautech
author_rank: Super Contributor
timestamp: April 21, 2019, 05:36:52 am
content: OK.

author: rf-loop
author_rank: Super Contributor
timestamp: April 21, 2019, 07:14:49 am
content: Quote from: tautech on April 21, 2019, 04:46:55 amSDG1032X / SDG1062X Ramp/triangle limit out from factory carton is 500kHz.Factory have selected this limit for specified linearity. With this limit it meet specs with all frequencies of Ramp, even if it is <0.1% (or >99.9%) duty or most easy case 50%It need remember what kind of bandwidth it need if it is used example for sawtooth, example 0 .. 0.1% symmetry. Triangle itself is quite easy case.If we reduce sawtooth/triangle quality then limit can be of course higher.I have changed my SDG1032X ramp function (sawtooth - triangle) max frequency limit to 5MHz. Of course with this it do not meet specifications.Here can see why Siglent set max limit Ramp freq 500kHz.Here examples with 500kHz, 2MHz, 5MHz (SDG1032X Ramp max limit changed to 5MHz)0% symmetry set value (of course in real life this symmetry is not at all true with higher frequencies, there is not hundreds of MHz class output stage).500kHz, 2MHz, 5MHz0% symmetry setting give maximal corner ringing (and rise time)Note that image include total sum off errors, not only inside generator. (oscilloscope - cable - impedance match etc)50% symmetry ramp aka triangle.500kHz, 2MHz, 5MHzBut, 500kHz is max limit after factory out from carton. What owner do after then, well it is owners decision and responsibility.. here more about this:https://www.eevblog.com/forum/testgear/siglent-sdg1000x-waveform-generators/msg1307521/#msg1307521Then for OP@hussamaldean:If this Atten ATF20B model price is $600 in your hand in your country (perhaps including very extremely high shipping cost and possible taxes if any) it is totally too much about this <censored word>.How it is possible you can not get Siglent to Iraq with reasonable price. But, reliable delivery is perhaps problem due to security etc situation in some areas?https://www.eevblog.com/forum/testgear/atten-atf20b-teardown/Read this. Do you still want it with $600

author: Daruosha
author_rank: Regular Contributor
timestamp: April 21, 2019, 10:25:19 pm
content: Is Feeltech available in your country?

author: hussamaldean
author_rank: Unknown
timestamp: April 22, 2019, 05:28:33 am
content: Quote from: Daruosha on April 21, 2019, 10:25:19 pmno but the other onehttp://www.uruktech.com/product/digital-function-generator/but the quality is so bad beyond your imagination