Please select To the mobile version | Continue to access the desktop computer version

Electronic Engineer Discuss

View: 5127|Reply: 1

2c42 bandwidth problem

[Copy link]

1

Threads

1

Posts

1

Credits

新手上路

Rank: 1

Credits
1
Post time 2021-4-29 21:52:49 | Show all posts |Read mode
Edited by fsHantek at 2021-4-29 21:58

Hello,

I ordered the 2c42 handheld scope from Aliexpress Hantek Official Store:
https://www.aliexpress.com/store/2792111

I received it this week, but I found out that the bandwidth is very poor, nowhere near the advertised 40MHz.
I attach three pictures.

1. the scope probe was adjusted at 1kHz to give a good square wave


2. at 50kHz the square wave is already distorted



3. at 100kHz even worse



A 40 MHz scope should give good square wave result up to 4 MHz !!

This is max. 500 kHz bandwidth graciously !

Did I get a bad sample?


This post contains more resources

You have to Login for download or view attachment(s). No Account? Register

x
Reply

Use magic Report

167

Threads

2071

Posts

2232

Credits

版主

Rank: 7Rank: 7Rank: 7

Credits
2232
Post time 2021-5-6 14:23:22 | Show all posts
Hi, what test line do you use to test square wave?
Have you used another oscilloscope for comparison test?
Please give me more pictures to study.

You have to log in before you can reply Login | Register

Points Rules

Dark room|Mobile|Archiver|Electronic Engineer Discuss

2024-3-29 06:22 GMT+8 , Processed in 0.192161 second(s), 22 queries .

Powered by Discuz! X3.2

© 2001-2013 Comsenz Inc.

Quick Reply To Top Return to the list