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Siglent SVA1015X correction proceedure
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canyon:
Gang,

I am trying to apply a correction to a sweep of a rather poor 30db attenuator. I am not understanding the correction details in the manual. I have attached a couple of pics of my setup. At the marker, I am trying to apply a -5db correction at 125MHz as the first step in forming a correction table for this attenuator. Turning the correction on and off, I see no change in the trace. Should I?

Thank you,

Ken
tautech:
To negate the influence that attenuator has on a through signal go back to the TG menu and perform Normalize. You will need to save the Ref trace then apply the Normalize and set the trace to the reference level that suits your needs.
canyon:
Thank you for your quick reply and the answer to my issue. 73, Ken - wa4mnt
tautech:

--- Quote from: canyon on October 03, 2022, 02:17:43 am ---Thank you for your quick reply and the answer to my issue. 73, Ken - wa4mnt

--- End quote ---
Sorry as I could have addressed how you are attempting to characterize the attenuator instead.

So first a through TG to RF In connection at the levels and span you are to use is Normalized then the attenuator is inserted to see its linearity and cursor measurements taken at points of nonlinearity and recorded.
Applying them as a Correction is probably possible but sorry I'm not sure how. 

BTW
Capturing a sweep with the Trace View function and activating another trace to work with could be handy in this use case. Yesterday I posted some examples that should give you an idea of how this is done:
https://www.eevblog.com/forum/testgear/siglent-sva1015x-1-5ghz-spectrum-vector-network-analyzer-(coming)/msg4443871/#msg4443871
canyon:
So the key is to determine how the normalized trace is saved and recalled so it can be applied to future measurements using that device?
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