Just got my 703S. It took me some time to realize that the function generator available via the 'More Apps' menu does not work together with the scope functionality at all. Either use the scope or the enhanced function generator! The low frequency generator accessible via the 'Output' option on the other hand is always available. However it seems that setting some of the other waveforms (triangle etc) then imposes a 100us minimal timebase setting.
fw is 1.29
Just got my 703S. It took me some time to realize that the function generator available via the 'More Apps' menu does not work together with the scope functionality at all. Either use the scope or the enhanced function generator! The low frequency generator accessible via the 'Output' option on the other hand is always available. However it seems that setting some of the other waveforms (triangle etc) then imposes a 100us minimal timebase setting.
fw is 1.29
My ZT-703S arrived today, purchased from AliExpress. I was surprised it wouldn't turn on since the batteries are usually delivered with 50% charge. I opened it up and found that I have no battery inside!!!
I'm wondering if it's worth the effort of sending it back, or probably I'll just buy a battery and put it in myself. Does it matter if I install an ICR or IMR 18650? Are they interchangeable? Which should I be using in this?
I just wanted to post a PSA, most probably know this already but when buying anything of value from AliExpress please video record the opening of your package in one continuous shot all in frame.
I purchased the ZT-703 2x now from AliExpress the first one was returned to the seller because the package weight didnt match the discription during shipping and never made it out of china. The second one was flat out scammed and the seller sent me some gel pads that look like small shoe inserts or something. It came in a large order with several items. The recording i made was corrupt (not sure what happened) Luckily AliExpress refunded my purchase without it. Ended up buying a ADS1013D for 50$ off ebay for use in the mean time. Again just wanted to share my cautionary tale.
Depending on seller, destination country, shipment method (passenger air vs cargo air vs sea), and probably some other variables, lithium chemistry batteries are considered hazardous and are banned from being shipped as regular cargo. I've had a number of items ship from China without their batteries, while others come with. Sometimes they tell you they're shipping sans batteries, and other times they do not. It's pretty much a lottery. Either some sellers are applying the regulations to everything they sell just to avoid hassling with who gets batteries and who doesn't, or they don't care about regulations and ship batteries regardless.
I'm not usually concerned about it, because typically if I'm ordering from AliExpress and the like it's because of a price advantage anyway, so the extra cost of a battery is a non-issue. Fortunately I maintain a supply of most common rechargeable formats including 18650's and a few different LiPo pouch types, so unless it's some exotic battery it's seldom much of an inconvenience for me. It would be courteous for the seller to clearly state in their listings that they ship without batteries, and what type is required, just so buyers can be prepared.
All that to say this is not unusual, and you're unlikely to get a battery from the seller, thought they might be generous enough to refund you a couple bucks to supply your own battery.
Just got my 703S. It took me some time to realize that the function generator available via the 'More Apps' menu does not work together with the scope functionality at all. Either use the scope or the enhanced function generator! The low frequency generator accessible via the 'Output' option on the other hand is always available. However it seems that setting some of the other waveforms (triangle etc) then imposes a 100us minimal timebase setting.
fw is 1.29Did it ever work the other way? All I saw was freq gen made signal a bnc and the signal being generated was in the display.
Does the manual say it works any other way?
I just wanted to post a PSA, most probably know this already but when buying anything of value from AliExpress please video record the opening of your package in one continuous shot all in frame.
I purchased the ZT-703 2x now from AliExpress the first one was returned to the seller because the package weight didnt match the discription during shipping and never made it out of china. The second one was flat out scammed and the seller sent me some gel pads that look like small shoe inserts or something. It came in a large order with several items. The recording i made was corrupt (not sure what happened) Luckily AliExpress refunded my purchase without it. Ended up buying a ADS1013D for 50$ off ebay for use in the mean time. Again just wanted to share my cautionary tale.Interesting. I was about to spend almost $1000 on an oscilloscope on AliExpress. Now you've got me wondering if it's a bad idea.
Depending on seller, destination country, shipment method (passenger air vs cargo air vs sea), and probably some other variables, lithium chemistry batteries are considered hazardous and are banned from being shipped as regular cargo.
Just to let you know, the factory's latest version right now is 1.2.7. If someone says they got 1.3.0, that's actually an internal naming method by the engineering department.
In reality, both versions are the same. Whenever there's a new update, I'll let you all know here first.
Whoa! I could handle "ringing" on the edge, but every edge looks different! 10s persistence shows the variation.
Cheap scope expectation management.
I have an old 15MHz analog scope. It is honestly 15MHz. If you put in a higher-bandwidth signal, you see a 15MHz low-pass filtered version of it. For example, a 6MHz square wave will look pretty rounded, but rock steady with no strange artifacts.
If I update to the new 1.32 (the thing now has "1.30" on it) and something stops working that previously worked
- will it accept a firmware downgrade?
- where can I get the older 1.27 release, just in case?
Goes without saying I'll keep the 1.32 upgrade file around for potential future use.
Anyhow, the FW 1.3.2 like the versions before still has the problem of sporadically showing distortions in the waveform like in this examples:
(Attachment Link)
(Attachment Link)
Has anyone made similar experience?