Products > Test Equipment

Hantek 6074BC: Surprising results

(1/1)

BillyO:
Hantek should just stick to making cheap USB scopes.  They seem do a decent enough job at that.

Here is a screen shot from a ~$200 6074BC, supposedly 70Mhz 4ch. USB scope, with a sweep time of 5ns/div.

It shows a 10% to 90% rise time of 2.3ns!

According to this page at Tektronix: https://www.tek.com/en/support/faqs/how-bandwidth-related-rise-time-oscilloscopes#:~:text=Historically%2C%20oscilloscope%20frequency%20response%20tended,Bandwidth%20x%20rise%20time%20%3D%200.45.

That equates to a bandwidth of .45/2.3 GHz or ~ 190MHz!

Did I get something wrong or are these cheap scopes highly underrated?

thm_w:
As you noticed here: https://www.eevblog.com/forum/testgear/hantek6074bc-hack-to-250mhz/
Its the same hardware as in the 250MHz model, and sample rate is 1GS/s, so its not too surprising.

BillyO:
I guess with Hantek's apparent quality control it's not such a stretch to have a few that are software configured for 200MHz to 'leak' out as a 70MHz units.

Navigation

[0] Message Index

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod