| Products > Test Equipment |
| Possible GW Instek GDS-1000B hack |
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| TK:
I tested the BW after applying the 300MHz hack. Test setup: Signal Generator (Marconi 2024) --> SMA cable --> SMA_BNC --> 50ohm passthrough --> Scope input Channel 1 (1X attenuation) Measured Frequency and Vpp 10MHz 1.2Vpp 100MHz 900mVpp (-3dB) 200MHz 280mVpp 250MHz 110mVpp 300MHz 48mVpp 350MHz 20mVpp (5mV vertical division setting) Cannot measure reliable frequency at 400MHz and up. I think officially it is a 100MHz front end. |
| Mortymore:
@TK What are the bandwidth limit options with the 300MHz BW hack? For the 200MHz, options are 20,100,Full. Note that GW-Instek has the 1000B with 50/70/100MHz bandwidth selections. |
| TK:
--- Quote from: Mortymore on April 30, 2019, 03:41:45 pm ---@TK What are the bandwidth limit options with the 300MHz BW hack? For the 200MHz, options are 20,100,Full. Note that GW-Instek has the 1000B with 50/70/100MHz bandwidth selections. --- End quote --- For 300MHz, BW limitation options are 20, 100, 200, Full. |
| TK:
I am not liking the refresh rate of the GDS1054B. I am feeding an AM modulated signal and on both the Keysight 1000X and Rigol DS1054Z I can see a nice AM modulated waveform but on the GDS1054B I see single traces or at most 3-4 traces, but not the nice area filled trace like the other scopes. The scope UI is very responsive like the Keysight, but I suspect the refresh rate is not near 50,000 wfm/s |
| nctnico:
The update rate depends on the memory depth setting. But don't expect a very graded signal. The GW Instek goes from like 50% to 100% in order not to hide any rare signal occurence. |
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