Electronics > Beginners
Rogol 1054Z actual bandwidth
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kahe40:
here a  sweep 50M to 500M with 10M step, you see those spikes every 10M.
Rigol is not fast enough, but Micsig and Siglent show them clearly.
Center of Grid is around 225M, so you get an idea of BW and Freq.
Micsig goes down very fast, Siglent is the best of all
and Rigol has a linear degree, like a triangle.
Rigols 5ms are too short for the entire sweep (or user error?),
but I tried to make it comparable.
Sweep was done with RF-Explorer-SigGen,
yes, maybe it is a toy but better than nothing...

Micsig TO1104   https://ibb.co/hTupS6

Rigol 1074Z hack  https://ibb.co/mf2b76

Siglent 1202XE   https://ibb.co/cMZCfR


edit: have not found out, how to post pictures with iPad, sorry
bingo600:
I measured mine to around 134Mhz , for the 3dB mark
DS1054Z (100Mhz Hacked)

/Bingo
xrunner:

--- Quote from: rstofer on December 20, 2017, 01:52:58 am ---
I suppose something less than 50 MHz for those who don't think the original bandwidth has changed.  Say 10 MHz?

No point in going beyond 200 MHz because it is pretty well establised that the -3dB point is around 130 MHz.


--- End quote ---

Here's my data. First up is from 10 MHz to 150 MHz. The -3dB point is where the cursors on the right intersect, about 130 MHz.

Second is from 10 MHz to 500 MHz, again where the cursors intersect is -3dB @ 130 MHz. But certainly the scope can easily display signals in excess of 500 MHz.

Note: Using TG output of a Rigol DS815 triggered externally, some amplitude anomalies are expected. The TG output was set to 0 dBm into 50 ohms at the scope.
rhb:
The Rigol has  a very strange response.  It looks like a filter  skirt with the corner frequency below 50 MHz.
Fungus:

--- Quote from: kahe40 on December 20, 2017, 02:40:49 pm ---here a  sweep 50M to 500M with 10M step, you see those spikes every 10M.
Rigol is not fast enough, Rigol has a linear degree, like a triangle.

--- End quote ---

What sort of settings are these?


Rigol has 1GSa/s and 24M pts.


--- Quote from: rhb on December 21, 2017, 01:31:02 am ---The Rigol has  a very strange response.  It looks like a filter  skirt with the corner frequency below 50 MHz.

--- End quote ---

Just a display artifact from the settings, nothing to do with frequency response.
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