Products > Test Equipment
12 bit Keysight... when?
David Hess:
--- Quote from: EE-digger on January 15, 2024, 07:44:29 pm ---4MPts memory depth? C'mon Keysight. That's like making us use a 4 function calculator instead of Matlab or other.
--- End quote ---
Memory depth is usually more important for marketing than engineering. What matters more is the ratio between memory depth and bandwidth which determines how quickly the memory can be processed. Previous HP DSOs had limited acquisition memory because they had a custom ASIC for processing, and users seem to have loved the fast processing that allowed.
HighVoltage:
--- Quote from: mikeselectricstuff on January 09, 2024, 12:35:46 pm ---Not sure if there's anything new here but there is a 50 page datasheet :
https://www.distrelec.de/en/oscilloscope-infiniivision-4000g-dso-4x-5ghz-5gsps-spi-rs232-rs422-rs485-usb-keysight-dsox4154g/p/30407321
--- End quote ---
That datasheet is actually well made and gives a good overview of the 4000x series.
But I do not see any reason to upgrade to the "G" model.
tooki:
--- Quote from: HighVoltage on January 16, 2024, 09:33:52 am ---
--- Quote from: mikeselectricstuff on January 09, 2024, 12:35:46 pm ---Not sure if there's anything new here but there is a 50 page datasheet :
https://www.distrelec.de/en/oscilloscope-infiniivision-4000g-dso-4x-5ghz-5gsps-spi-rs232-rs422-rs485-usb-keysight-dsox4154g/p/30407321
--- End quote ---
That datasheet is actually well made and gives a good overview of the 4000x series.
But I do not see any reason to upgrade to the "G" model.
--- End quote ---
Of course not. The G models are simply a) color facelift, and b) include most of the options for free. There’s no difference in the hardware itself vs. the immediately preceding models.
Pinkus:
--- Quote from: David Hess on January 15, 2024, 10:08:15 pm ---
--- Quote from: EE-digger on January 15, 2024, 07:44:29 pm ---4MPts memory depth? C'mon Keysight. That's like making us use a 4 function calculator instead of Matlab or other.
--- End quote ---
Memory depth is usually more important for marketing than engineering. What matters more is the ratio between memory depth and bandwidth which determines how quickly the memory can be processed. Previous HP DSOs had limited acquisition memory because they had a custom ASIC for processing, and users seem to have loved the fast processing that allowed.
--- End quote ---
I second this. Very very rarely have I wished for more memory when working with my Keysight MSOX4024a. But (especially when I look at other oscilloscopes in comparison) I am grateful every day for the speed, responsiveness and usefulness of my scope.
mikeselectricstuff:
--- Quote from: Pinkus on January 16, 2024, 11:32:08 am ---
--- Quote from: David Hess on January 15, 2024, 10:08:15 pm ---
--- Quote from: EE-digger on January 15, 2024, 07:44:29 pm ---4MPts memory depth? C'mon Keysight. That's like making us use a 4 function calculator instead of Matlab or other.
--- End quote ---
Memory depth is usually more important for marketing than engineering. What matters more is the ratio between memory depth and bandwidth which determines how quickly the memory can be processed. Previous HP DSOs had limited acquisition memory because they had a custom ASIC for processing, and users seem to have loved the fast processing that allowed.
--- End quote ---
I second this. Very very rarely have I wished for more memory when working with my Keysight MSOX4024a. But (especially when I look at other oscilloscopes in comparison) I am grateful every day for the speed, responsiveness and usefulness of my scope.
--- End quote ---
Definitey agree - even when you do hit memory limits, these can often be memory limits can often be mitigated by choice of acquisition mode, limiting channels etc. as well as smarter trigger/segmented setup.
I have a MSOX3104T and R&S RTM3004 on the bench, and the Keysight gets 95% of the use despite the smaller screen and smaller memory - IMO the UI speed on the R&S is borderline unacceptable for a scope in its price range.
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