Model conversion of a MSO5000 to 500 MHz model (MSO5504) - PART 2
- The measurements used a genuine 50 Ohm termination 1Ghz model
- No significant changes in output (heat wise)
Some results/confirmations of the tests:
- The scope BW is 470 MHz, as previously announced by others.
- With the 500 MHz model setting, the horizontal scale can be lowered to 500 ps. But, no further BW increase is noticeable.
- Besides the official models, currently on sale, MSO5504/02 seems to be the only additional Model possible. Maybe the scope was designed to have a 500MHz BW but, in the end, they couldn't reach it.
- With MSO5504 model, and after a self-calibration, we made some attempts in creating eye diagrams. The scope clearly hasn't the BW nor the memory to do them in a usable way but, nonetheless, it's a nice accomplishment in a scope with these characteristics. You can check them in the attached pics. It seems to prove that it shares much code with the 8000 model.
BTW, and likewise, we also changed a MSO7000 to 1GHz model (MSO7104). It also seems the only possible model besides the "official" ones. No eye/jitter possible with the latest DS7000 FW. Real BW seems close to 989 MHz (measured with bodnar pulser). Further tests ongoing.
Edit1: Corrected the BW of both equipments, by using the correct formulas. The 7000 is almost 1GHz!!!