Products > Test Equipment
Bode plot up to a few 100 MHz
tautech:
--- Quote from: pope on October 03, 2023, 09:02:15 pm ---Why not sds1104x-e and SDG2042X? It can also do up to 120MHz, right?
--- End quote ---
Both hacked yes but does the OP need another DSO or a 4ch one ?
The little dearer SDS2202X-E also provides 50 Ohm inputs for better system matching and can be coerced to become a 350 MHz model. ;)
mawyatt:
The OP mentioned scope and DAQ front ends, which might imply high impedance. Here's where the DSO and AWG might be a better choice that a VNA, which usually are centered around low Z of 50 ohms.
Best,
tautech:
--- Quote from: mawyatt on October 03, 2023, 09:37:54 pm ---The OP mentioned scope and DAQ front ends, which might imply high impedance. Here's where the DSO and AWG might be a better choice that a VNA, which usually are centered around low Z of 50 ohms.
--- End quote ---
Then old school Bode plots might the only way past the Siglent 120 MHz limit but without a Phase measurement.
Cursors can then provide measurements but only a single one and not in a tabular multiple measurement format.
Maybe DSO Maths can help....need do some study.
mawyatt:
--- Quote from: tautech on October 03, 2023, 09:57:17 pm ---
--- Quote from: mawyatt on October 03, 2023, 09:37:54 pm ---The OP mentioned scope and DAQ front ends, which might imply high impedance. Here's where the DSO and AWG might be a better choice that a VNA, which usually are centered around low Z of 50 ohms.
--- End quote ---
Then old school Bode plots might the only way past the Siglent 120 MHz limit but without a Phase measurement.
Cursors can then provide measurements but only a single one and not in a tabular multiple measurement format.
Maybe DSO Maths can help....need do some study.
--- End quote ---
Wonder if Siglent has considered upping the frequency range since many of the scopes are beyond 120MHz. They have the SDG6000X AWGs which go from 200 to 500MHz. If the scope can handle the higher frequency and one has the higher frequency AWG, then "seems" possible. Of course this from "someone" that doesn't have to do the work, as we see often here ;)
Best,
tautech:
I imagine beyond 120 MHz with a HiZ system good results might be difficult to obtain and much less so for a proper 50 Ohm impedance matched arrangement.
Those smarter than I should also contribute on this. :popcorn:
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