Products > Test Equipment
SDG2042X Timebase Calibration
mawyatt:
The images are 1st from Vectron, 2nd SDG2042X and 3rd SSA3021X Plus.
Some time ago I worked over 20 years for the company mentioned in the Chip-Scale Atomic Clock post, so been around precision time and navigation systems & standards a long time ;)
I don't need anything better than what I have regarding an accurate and stable timebase now, but agree the GPS enhanced standard is very interesting and enticing ::)
Best,
vsilves:
Old conversation and maybe the Service Manual did not exist in 2020 but nowadays the Siglent Service Manual states that "there is" a TCXO.
> SDG2000X Series Service Manual SM0202X-E01B
> Service Manual, pg 63.
> There is a TXCO generating a 10 MHz 3.3 V LVCOMS clock source to the entire channel board.
Ref.: https://siglentna.com/wp-content/uploads/dlm_uploads/2020/12/SDG2000X_ServiceManual_SM0202X-E01B.pdf
Just acquried a cheap $15 TCXO 12V external board, and adding two 15KΩ in parallel somewhere I managed to stabilize it using its trim pod to match my SDG2042X exactly, with no noticeable drift. For my purposes just matching the same frequency is sufficient. Don't really care if it is 10MHz exactly or not, but would be nice. Just don't have any better reference (just yet).
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