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Feature request: higher analog bandwidth

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Post time 2020-1-15 03:48:49 | Show all posts |Read mode
I have been using Hantek USB scopes, they are great.
1. Analog bandwidth:

One thing is an issue, all Hantek models seem to only go up to 250MHz analog bandwidth, even the models that have 1Gsps sampling rate.
In high end hardware development, we often have to inspect the quality of 156MHz and sometimes 322MHz clock signals.
For the 156M a scope with 500MHz analog bandwidth is required.
Feature request: for new models, please provide 500MHz analog bandwidth with high performance amplifiers, and 1GSps sample rate. 1GHz analog with 1Gsps digital would be even better.

2. Bode Plot feature:
You have some scopes that also have function generators, like the DSO3254A. Can you update your software to use this model to capture Bode Plots?.
This would make use of the signal generator output and one of the oscilloscope inputs.
This could be used for characterization of DC/DC converter control loop stability.

3. Power VNA feature:
Another useful feature could be a VNA function (Vector Network Analyzer). This would also make use of the signal generator output and one of the oscilloscope inputs, that already exists in the Hantek hardware.
VNAs are used for signal path measurements in the range of 10kHz ... several GHz, on 50 Ohm signal paths, that is outside of the range of the typical Hantek scope.
But, VNAs are sometimes used for decoupling network PDN impedance measurements also, in the range of 100Hz...200MHz, in an arrangement we call shunt-through impedance measurement.In this usage the output signal would go into a very low impedance DUT (mili ohm range), and the input signal of the VNA/scope would be around -110dBm that would require a high gain low noise amplifier. This could work with an external amplified box, it does not have to be built into the scope, but the software needs to support it. The result would be displayed either as an S-parameter or a shunt-through impedance plot, and exported into an s-parameter file.


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