Products > Test Equipment

Choosing a ~$10K MSO (Keysight 3000G, LeCroy 4000HD, Tek MSO34, R&S ??)

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EEVblog:

--- Quote from: tooki on November 05, 2023, 06:10:40 pm ---The upshot is, at this point, that unless R&S can come up with an insanely high discount on the MXO4, it's really down to the LeCroy 4000HD and the Keysight 3054G, with me leaning towards the Keysight. The LeCroy would have the advantage of the same user interface as, and high compatibility with, the WaveRunner, and it would bring with it hands-down the best set of options. But it's got the same strengths and weaknesses as the WaveRunner, in that it's an analytical scope. On the other hand, the Keysight would complement the WaveRunner, in that the Keysight is more of a real-time scope that reacts instantly and makes it easier to discover the existence of anomalies. My thinking is that the Keysight would make it easier to identify what it is I want to look at, and that if I really need to analyze it in detail, I could then use the WaveRunner to do so. Similarly, the WaveRunner's FFT is pretty decent, so it could serve that purpose.

Am I missing anything?
Are there any "gotchas" with these models that I don't know about?
Am I giving too much weight to having digital inputs?
Would that be better spent on a separate USB logic analyzer like a Saleae or Analog Discovery?

--- End quote ---

Used Keysight 4000X 1.5G with digital for $10k?
https://savings.em.keysight.com/en/used/oscilloscopes/msox4154a-u01-2466425

tautech:

--- Quote from: EEVblog on November 06, 2023, 03:02:30 am ---
Used Keysight 4000X 1.5G with digital for $10k?
https://savings.em.keysight.com/en/used/oscilloscopes/msox4154a-u01-2466425

--- End quote ---
Stated feature = Capture more data with 4 Mpts memory and standard segmented memory
 ::)
A $339 DSO has 3x more memory.

EEVblog:

--- Quote from: tautech on November 06, 2023, 05:40:20 am ---
--- Quote from: EEVblog on November 06, 2023, 03:02:30 am ---
Used Keysight 4000X 1.5G with digital for $10k?
https://savings.em.keysight.com/en/used/oscilloscopes/msox4154a-u01-2466425

--- End quote ---
Stated feature = Capture more data with 4 Mpts memory and standard segmented memory
 ::)
A $339 DSO has 3x more memory.

--- End quote ---

Quote from the OP: "it's really down to the LeCroy 4000HD and the Keysight 3054G"
I suggested the 4000X for the same price.

2N3055:

--- Quote from: tautech on November 06, 2023, 05:40:20 am ---
--- Quote from: EEVblog on November 06, 2023, 03:02:30 am ---
Used Keysight 4000X 1.5G with digital for $10k?
https://savings.em.keysight.com/en/used/oscilloscopes/msox4154a-u01-2466425

--- End quote ---
Stated feature = Capture more data with 4 Mpts memory and standard segmented memory
 ::)
A $339 DSO has 3x more memory.

--- End quote ---

It is even worse.

4Mpts is available  only on 1 channel per ADC  (ch 1 and 3 for instance) and only in single mode.

If 4 ch enabled and in RUN mode is 1MPTs.
If you enable MSO then only 512KPTs is available

tautech:

--- Quote from: 2N3055 on November 06, 2023, 08:04:07 am ---
--- Quote from: tautech on November 06, 2023, 05:40:20 am ---
--- Quote from: EEVblog on November 06, 2023, 03:02:30 am ---
Used Keysight 4000X 1.5G with digital for $10k?
https://savings.em.keysight.com/en/used/oscilloscopes/msox4154a-u01-2466425

--- End quote ---
Stated feature = Capture more data with 4 Mpts memory and standard segmented memory
 ::)
A $339 DSO has 3x more memory.

--- End quote ---

It is even worse.

4Mpts is available  only on 1 channel per ADC  (ch 1 and 3 for instance) and only in single mode.

If 4 ch enabled and in RUN mode is 1MPTs.
If you enable MSO then only 512KPTs is available

--- End quote ---
Kinda laughable when several DSO's under $10k offer 500 Mpts mem depth.

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