Owon USB scopes are great and I carry one in my robotics bag, but they aren’t ideal for field use because they take too much time and space to setup (laptop, wires, …). So I purchased a the low-cost JinHan handheld oscilloscope and so far, I’ve been pleasantly surprised. I bought the JDS2023 on AliExpress for $113 shipped via DHL (quickly); it integrates a 200MS/s dual channel 20MHz digital o’scope with a 5MHz signal generator in a remarkably small, light package. It has a bright, readable 3.2″ LCD color display and a reasonably intuitive UI (I never needed the manual) although the addition of even a single knob would make the UI better. It offers all the basic scope functions including automatic frequency and p-p amplitude measurements. The Auto button does its job well.
The company makes several models with a variety of speeds and features such as the JDS2012A that integrate a scope and multimeter. However, I prefer to keep carrying my UT136B meter which is smaller, easier, more functional (as a meter), and cheap enough that I won’t care when students lose or destroy it. For advanced diagnostics or impromptu demonstrations, the JDS2023 will replace the Owon USB scope in my robotics bag
The scope comes well packaged and includes a single 6100 (ostensibly 100MHz) scope probe, BNC to alligator-clips cable for the signal generator, USB cable, and separate battery charger. It does not include the required 18650 lithium battery (probably due to air shipping restrictions) or a carrying case…but what do you expect for $113? Power over the USB cable will run the scope.
I haven’t seen anything close to this level of functionality at this price. If I need more, I’ll probably step up to the Owon HDS1021M-N or UNI-T UTD1025CL, but they are twice the price, considerably larger, and sans signal generator.
I tested it quickly using a lab-grade RF signal generator and confirmed the 20MHz bandwidth specification; it clearly shows at least 10 points per cycle of the sinewave (validating the 200MS/s specification) and there is no amplitude compression of the 0dBm signal (nominally 0.632vpp into a 50-ohm load – this is unloaded so it correctly shows 2x vpp); the analog front end 3dB compression point is somewhere north of 40MHz.