In my head I bought a 46Mhz scope meter, and it’s remarkable for the money..
PG-jivq
I'm using the 702 S and I'm happy with it, thank you Tony for the info.
bilalkoroglu
Thank you sir! I have been searching for the beep in continuity mode from a few reviews now, and once you have a meter with the beep, you never want to go back to the dark ages! I like the 703, and I think that will be my purchase to replace my aged DVM in the garage :)
KegRaider
شكرآ جزيلا لحضرتك استفدت كثيرا من حلقة A620 وقمت بشراءة خالص التحية للعرض الشيق للحلقة والامانة العلمية تلميذك
محمدعثمان-خظغ
Thanks for the review Tony. I've ordered one of these from Alibaba and await its arrival with interest...
jabbalechat
Nice one, thank you Tony. 👍 I got the DSO-3D12 just recently, also not bad for a little bench "all-in-1" tester, can not complain for £80.
johndevires
UPDATE.
With the new 1.4.2. firmware update we now have a third trace available in the form of "FFT" (FAST FOURIER TRANSFORM) availability in glorious RED colour. It replaces the FORMAT position in the fourth menu which was used to delete the stored screen shots. It changes the "X" axis from time to frequency and as such changes the display to that of a a spectrum analyser. Frequency is plotted along the x-axis and amplitude is plotted along the y-axis. FFTs often look like a series of mountain peaks. The horizontal location of peaks indicates which frequencies are strongly present in the W/F. The valleys show which frequencies are absent. I tried this with the built in calibration sig gen on all the available W/Fs and it shows the strongest frequency is the prime 1 KHz followed in the case of square waves by diminishing amplitude peaks at each successive square wave. Quite useful when checking audio problems etc. The second change in the menu is in the 2nd row, what used to be the trigger position, is now "SAMPLE" with two choices, HD & PEAK, peak.
Cortina_Ron
Thank you very much for this prereview review.
guateque
Impressive - I was expecting it to be double the price of the 10Mhz model, but it is just $10 or $20 more? I have only had my 702S for 5 minutes and it's now out of date! I like the larger screen and the image viewer for screenshots, and the signal generator is not bad. My one also has a stiff BNC so I am pleased they fixed that too. I'd love to see a teardown and see the PCB compared with the 10Mhz one. Also the current draw on the battery. 👍
Petertronic
25:08 Why do you connect the probe to ground?
omatadormatador
The latest firmware 1.4.2 has added support for FFT, which looks pretty awesome. I haven't been able to try it yet, though
acraigwest
Thank you for the review, Tony. It is amazing how many features they can cram into these devices. It looked to me like the upper frequency limit of the scope was a triggering issue rather than a bandwidth issue. As you said, the displayed amplitude did not drop significantly between 47 and 48 MHz. Are there any trigger modes other than auto? - if so it might be interesting to experiment with them. Regards, David
davidv
I just got 703s, using to troubleshoot MACBOOK charging problem. Happy so far.
The 703s MENU has a "More APPs" selection; do you know of any that can be loaded? Maybe a 'mirror display to PC'? Because the device does have folders besides "Firmware". ZoTek has nothing I can find.
Thanks
cannapolis
In fact there is no extra digit, one is in V range and the other one in mV :)
ssalient
Tony Do you think the Owon HDS272 is better compared to the 703s? If so, how?
falcon
Hey Tony! Bedankt voor de review. Misschien als ik in een gekke bui ben koop ik deze er ook nog wel bij. Weet je of ik voor de 702 nog mijn firmware kan upgraden zodat ie ook de mode vasthoudt na uitschakelen?
MarcelHuguenin
Hi Tony, you didn't show the main thing for me. Whether or not this device will be able to show the sine wave of its generator with its oscilloscope, precisely while the frequency of the internal generator is changing.
To set up the resonant circuits, I need to look through the oscilloscope window, and at the same time change the frequency of the generator, all this must happen simultaneously.
It seemed to me that if it is possible to reduce the size of the generator window when the oscilloscope is turned on, I might try to check this.
Is this device suitable for this?
73! UR7CQ
SDRSearch
No temperature reading on this one?... :(
Razvan_N
Who is the better zoyi zt703s or fnirsi 2c23t ?
هيانرتقي-لس
I watched to see how crappy this was, and yes, you pointed out that the Owon hand-held oscilloscope was much better. The function generator is not good enough to add a BNC connector. Only 1x 16850 battery and the specs are not detailed fully like compareble test equipment. Maybe the price is good but better not to waste it if a little more get you a much better functioning and usable device. I might sound a little biased as I own an Owon HDS2202S. 3 BNC and more user-friendly operating experience. Thanks for showing us the Zoyi.
