| Products > Test Equipment |
| Siglent SDS1000(X) / SDS2000(X) or LeCroy WaveAce (Blackfin) hacks? |
| << < (7/19) > >> |
| markus_jlrb:
FYI, I can confirm the mod described by tautech extend the BW above 300MHz. For my model SDD2204X only one cap is mounted nearby the AD8370 ic in front of pin 8 and 9. This one cap I had desoldered today. The 3dB (voltage) BW is located at 330MHz. 10dB BW reach the 70cm ham band at 440MHz. (50mV/div) of a 1Vpp signal. I have attached some pictures measured with my DSO. Markus PS.: The 500MHz signal is passing a 3dB splitter to a second scope to compare the sigs. Means that the 316mV from the SMY01 has to be devided by 0.707. |
| tautech:
--- Quote from: markus_jlrb on August 17, 2018, 07:23:40 pm ---FYI, I can confirm the mod described by tautech extend the BW above 300MHz. --- End quote --- FYI So there is no confusion, the waveforms I have posted are from factory SDS2304X, unmodified in any way. The signal amplitude/s in screenshots are either 1V or 100mV p-p so roll off can easily be seen. The screenshots were not taken in one session. |
| markus_jlrb:
Sorry tautech, It was the post from KeBeNe and his mod. But good to know that the dso BW is comparable with the factory tuned. Markus |
| tv84:
--- Quote from: markus_jlrb on August 17, 2018, 07:23:40 pm ---The 3dB (voltage) BW is located at 330MHz. 10dB BW reach the 70cm ham band at 440MHz. (50mV/div) of a 1Vpp signal. --- End quote --- Cool! And, if I'm successfull in my investigations, soon you'll all be able to reclassify the scopes to the SDS2304X category (to match it's newer HW capabilities). I think it's just a magic byte that needs to be changed... |
| KeBeNe:
Here is my measurement with 100mV, -3db point and 500Mhz. @ tv84, that would be great and then all the options, have all bought up on PAS, I would like to have them |
| Navigation |
| Message Index |
| Next page |
| Previous page |