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| Oscilloscope Bode Plot Speed Comparison |
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| KungFuJosh:
--- Quote from: Martin72 on June 24, 2023, 06:53:06 pm ---Today the tests with 2504X-HD and 1104X-E. --- End quote --- Did you use the same AWG for all of the tests, or did the models with internal AWGs get the internal AWGs used? |
| Martin72:
Hi, As described in the first post, I also use an external generator for the 2000 models because the 1104 does not have an internal one. At work, with the 2104X+, it was a SDG1062X, here at home a SDG2122X. That should not play a role for the speed. And as I'm writing this, I could have done without the external ones on the 2000s, because their internal generators should also run via usb (internal). |
| Martin72:
--- Quote ---will examine the board, then present the circuit (it´s passive) --- End quote --- Under the (wonderful) andonstar microscope you can see three components for the filter, a coil, cap, resistor. Measuring them with my mastech LCR tweezer, the Resistor is 470ohm, the coil 118µH (I guess 100µH)a and the cap varies between 1µF and 1nF depending on the testfrequency. Not to forget the jumpers on the board for termination: 50 ohm to ground, 75 ohm terminal in to the filter. Because of the "unknown" cap I run a simulation, 100nF should be the right value.. The simulation is close enough to say these are the values you could take for the filter ( Lowpass: Signal after the coil, bandpass: signal after the cap.) when you don´t have the demoboard(99.99% of all contributors here I guess.. ;) ) Martin |
| M Harris:
Keysight MXR608A, about 1.2s per point. |
| Performa01:
--- Quote from: M Harris on June 25, 2023, 03:19:49 am ---Keysight MXR608A, about 1.2s per point. --- End quote --- So for ~500 points its a total of 10 minutes. |
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