Hantek TO1112 said to have a weak trigger - Page 1
Forum section: electronics / beginners

author: Silver_Is_Money
author_rank: Regular Contributor
timestamp: January 05, 2024, 04:43:32 pm
content: A YouTube video I watched on this tablet style DSO stated that the Hantek TO1112 has a "weak trigger". What does it mean for an oscilloscope to have a "weak trigger", and is this to be considered a deal breaker?Have others confirmed this "weak trigger" defect?Would the OWON TAO3072 tablet DSO be appreciably better product, and less likely to have a "weak trigger"?

author: Jwillis
author_rank: Super Contributor
timestamp: January 05, 2024, 07:10:38 pm
content: Apparently it has other issues as well but may have been resolved with firmware update. I don't know. Could you attach the link to the video you watched?

author: Silver_Is_Money
author_rank: Regular Contributor
timestamp: January 05, 2024, 08:04:34 pm
content: Quote from: Jwillis on January 05, 2024, 07:10:38 pmHere's the link:https://youtu.be/ArxyYqqkCUs

author: Jwillis
author_rank: Super Contributor
timestamp: January 05, 2024, 09:10:42 pm
content: I wouldn't say that the trigger is weak.The signal generator he's using is pretty noisy. So triggering becomes difficult when the Hold Off is not set . By increasing or decreasing the Hold Off, the scope can trigger much easier. This is typical of all scopes when trying to measure though noisy signals. For example. If the hold off is set wrong and the signal is jumping around you need to adjust the Hold Off until the wave becomes stable to view.

author: Silver_Is_Money
author_rank: Regular Contributor
timestamp: January 05, 2024, 11:06:18 pm
content: Quote from: Jwillis on January 05, 2024, 09:10:42 pmOK, thank you! That keeps the Hantek TO1112 in the running for me. Would selecting "single" before activating "run/stop" also help?

author: Jwillis
author_rank: Super Contributor
timestamp: January 05, 2024, 11:28:41 pm
content: Single shot could be used but it will trigger at the where ever the trigger is set. So the display image will be random and may not give you much information. Normally you use the single shot along with the Run/Stop function to locate sudden spikes that can be hidden, inconsistent or are to fast to see over time. Like the opening and closing of a switch can produce a ringing effect (bounce) that is hard to see because it's fast and very short term. One of the benefits of a DSO over an analog scope.Personally, I'm not pleased with my Hantek DSO2D15. The USB crapped out, so I can't save on retrieve anything and can't update firmware to fix other issues. But what do you expect for the price.

author: Silver_Is_Money
author_rank: Regular Contributor
timestamp: January 06, 2024, 12:36:41 pm
content: Quote from: Jwillis on January 05, 2024, 11:28:41 pmSo for an intended application that is inherently single shot in nature, the potential problems (weaknesses) underlying the Hantek TO1112 may not be problems of concern.Has there ever been a firmware upgrade for this DSO with which to address weaknesses?

author: Jwillis
author_rank: Super Contributor
timestamp: January 06, 2024, 10:52:25 pm
content: On that particular model I can't say. I do know that updates are supplied to fix problems as they occur. Some times they fix a problem and break something else. But that can be expected for just about anything (cough windows)You can review the most recent updates produced for each model atHantek

author: Silver_Is_Money
author_rank: Regular Contributor
timestamp: January 07, 2024, 12:58:57 am
content: Thanks! There is a zip file containing a 3/7/2023 dated firmware update on the site you provided the link to.