Products > Test Equipment

New Hantek DSO2X1X models?

<< < (333/388) > >>

casch:

--- Quote from: DavidAlfa on November 11, 2023, 05:18:42 pm ---The only true fact I know of is they ship a 100MHz or 150MHz proble with each version!
They seem to not have any real difference in HW.

--- End quote ---

I also found no sign of a difference between the 100MHz and 150MHz versions of the DSO (at least after the 2D15_conversion upgrade, because I wasn't looking for a difference before). My 100MHz version came with a PP-150 sample. But it has a bandwidth of 100MHz on the nameplate. If you look for the PP-150 on aliexpress, if something is specified, it is always specified as 100MHz.

With the money I saved I bought two 250MHz specified probes (the black ones with the red 1x/10x switch). They were just under 1EUR more expensive than the PP-200 (200MHz specified).

Today I compared both probes (CH1 the 250MHz, CH2 the 100MHz PP-150). I removed the ground pigtails from both probes (avoid interference) and adjusted them cleanly at the calibration output. The rise times of the calibration signal are not sufficient to detect differences between the two probes. Then I inserted a sufficiently thick needle into the signal output of the BNC socket of the wave generator to connect both probes at the same time with their hook (again without pigtails). I set the generator to 1Vpp, 10MHz square:


We know that we cannot accurately predict the signal shape at the output due to the output filter and the capacitive load from the two probes. Both probes are connected to this signal at the same time. The 250MHz probe shows shorter rise times...

I also noticed that the 250MHz probe shows higher amplitudes of the 100MHz interference signal (during probe calibation), which probably comes from the power supply.

Neither are exact measurement results, but rather indicators of the differences to be expected between the two probes. On both probes, the 1x/10x switches are sufficiently stiff to not move on their own, as was written in a review of the 250MHz probe.

viktor63:
$150 and I am the happy owner of this device)) I immediately reflashed it to D15 (many thanks to DavidAlfa) and also had to declare war on HF noise, replaced the capacitors with others with an operating frequency of 200 kHz, replaced the input capacitor with Nichicon 47mkf, added ceramic capacitors 0.1 uF and 1 MCF for power buses and ferrite rings for wires. Now it is a little closer in image quality to analog))

viktor63:
Power consumption is pleasing)

viktor63:
Test AWG square 50mv frequency 500kHz.
What problems ))

viktor63:
1MHz

Navigation

[0] Message Index

[#] Next page

[*] Previous page

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