the usage:
in an S1P file, or part of columns of a S2P file (where S11 is also incorporated),? the reflection coefficient is reported.
By definition the coefficient can never be >1.
There's something wrong if there's a value >1.
Cause can be a faulty VNA or bad calibration.
73
Arie PA3A
Op 28-8-2022 om 07:59 schreef F1AMM:
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Hello
I received this email
The following files and folders have been uploaded to the Files area of the [email protected] group.
* /S11.EXE ( /g/nanovna-users/files/S11.EXE )
*By:* Brian Beezley <k6sti@...>
*Description:*
This Windows program checks Touchstone files for |S11| > 1. These improper values may indicate invalid VNA calibration.
I downloaded this S11.EXE from the given page. Origin: Group Notification <noreply@...>
I don't know how we can discuss this application (noreply). I don't even understand the usage. The following message is displayed:
s11 tmp.s1p
This program checks Touchstone files
for |S11| > 1. These improper values
may indicate invalid VNA calibration.
No files found with |S11| > 1
Arie Kleingeld PA3A