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Can anyone tell me what the Correction option is doing ?

Applying it sends to create some kind of offset by 20db on the S11 display, but if I remove the 50 ohm
load then s11 baseline is minus 20db.

73 de Andy

On Mon, Nov 11, 2019 at 06:53 PM, Andy wrote:

Can anyone tell me what the Correction option is doing ?

Enable/disable error term apply to the measurement result.
When you disable it, NanoVNA shows you uncorrected raw values (with no calibration apply).

Thanks Qrp !

Why would you want to ever disable this?

Why would you want to ever disable this?

When trying to evaluate / improve upon firmware calibration
by experiments with uncorrected data on hosts, e.g.
/g/nanovna-users/message/6696
/g/nanovna-users/message/6609
/g/nanovna-users/message/6600
/g/nanovna-users/message/6595
/g/nanovna-users/message/6484

Thanks. Interesting to see.