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Did I just increase DS1022CD bandwidth four times?

Probably you are already familiar with famous DS1052E hack where guys were able to double and even triple bandwidth. It happens that on my table is DS1022CD scope with 25MHz analog bandwidth. And this hack doesn’t apply to my model.

We all know that same series Rigol oscilloscope models tend to have identical hardware whether they are 25MHz, 50MHz or 100MHz analog bandwidth. Of course, sampling rate (400MHz) stays the same. So it all lies in the software. I felt that someone would figure out how to do this with this pretty old oscilloscope.

And here it is – a hackaday pointed to a piece of great news – simple way of changing the model from DS1022CD to DS1102CD which converts analog bandwidth from 25MHz to 100MHz. This is quite a step without spending a penny.

DS1022CD –> DS1102CD

Andreas Schuler (aka Krater) shared a simple method of how to do this without using any serial interfaces and firmware updates. By following his step by step guide, you can do this as follows:

    • First of all, go to system info under the Utility menu button;
    • Enter the following scope button sequence: TRIGGER MENU, ACQUIRE, ACQUIRE, UTILITY, MEASURE, STORAGE, CURSOR, CH1, CH1, REF, TRIGGER MENU
    • Press the Run/Stop button;
    • Go back to the menu where you will find new menu entry “Service”;
    • Change the Model number to the one you desire. Probably it will be highest like DS1102CD, which is 100Hz bandwidth scope.
    • Select “Save”;
    • And then restart oscilloscope.

Alternatively, you can change the scope serial number if you wish. But this isn’t necessary. Among other settings, you can find color settings, but I don’t find it necessary. Be sure you don’t touch system parameters. You can start your scope and see that time base range have changed – you can go down to 5ns/div instead of 20ns/div for 25MHz bandwidth. All is left is take marker and change scope model number on it.


Sorry for you guys if you already have 100MHz scope not much fun for you.

Be careful, and don’t brick your scope!

One Comment:

  1. Also didn’t mention that rise time dropped from 14ns to 3.5ns, when changed from DS1022CD to DS1102CD.

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