Products > Test Equipment
Siglent SDS1000X HD versus SDS2000X HD
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tautech:

--- Quote from: Electro Fan on June 06, 2024, 02:17:14 am ---Yep, saw that, Thx - just checking to see if someone wants to let one warm up for ~30 min and test it to see what happens :)

I’m guessing it’s going read somewhere between ~20 Hz too high and ~20 Hz too low, but would be interesting to find out …

--- End quote ---
Those that test these instruments in greater detail than I can will tell you Siglent are conservative with their ratings.
It might be half what you expect is what I'm trying to say.

The little SDS800X HD for example has a much lesser timebase accuracy spec (time nuts run away  :) ) of some 25ppm yet none I have seen are anywhere that poor.
Mine's ~9ppm and others I see here ~12ppm.
Electro Fan:
Ok
Let’s see if we can get measurements from 3 users…
2N3055:

--- Quote from: Electro Fan on June 06, 2024, 02:17:14 am ---Yep, saw that, Thx - just checking to see if someone wants to let one warm up for ~30 min and test it to see what happens :)

I’m guessing it’s going read somewhere between ~20 Hz too high and ~20 Hz too low, but would be interesting to find out …

--- End quote ---

Mine reads 10.00001 MHz cold, on switch on. After few minutes it reads 10.0000, with occasional flip to 10.00001 MHz
Scope is 2+ years old now.
Counter is simple counter, so last digit has ±1 digit uncertainty..
Electro Fan:
Thx
That’s when you fed it an accurate 9,999,999.0 Hz?
2N3055:

--- Quote from: Electro Fan on June 06, 2024, 07:10:33 am ---Thx
That’s when you fed it an accurate 9,999,999.0 Hz?

--- End quote ---

10MHz on the dot.
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