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NanoVNA Dynamic Range Test

 

Hi all,
please find attached a dynamic range test of the NanoVNA with several DC-18GHz precision SMA attenuator.
Prior to the test I performed a fresh calibration.
I think the result leaves some room for discussions!

73, Norbert, DG1KPN

NanoVNA Dynamic Range.zip
NanoVNA Dynamic Range.zip
NanoVNA Dynamic Range.zip
NanoVNA Dynamic Range.zip

 

This measurement clearly shows why doing an isolation test hides the limited dynamic range of the nanoVNA and you are better of not doing isolation calibration.
When not doing isolation calibration you measurement of S21 without any connection between CH0 and CH1 will give you a clear indication of the dynamic range.
And when measuring a filter you will also see the limitations of the nanoVNA

Erik, PD0EK
 

Erik
Congrats with your Call

73's
Erik ON8DC

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of
erik@...
Sent: donderdag 26 september 2019 18:54
To: [email protected]
Subject: Re: [nanovna-users] NanoVNA Dynamic Range Test

This measurement clearly shows why doing an isolation test hides the limited
dynamic range of the nanoVNA and you are better of not doing isolation
calibration.
When not doing isolation calibration you measurement of S21 without any
connection between CH0 and CH1 will give you a clear indication of the
dynamic range.
And when measuring a filter you will also see the limitations of the nanoVNA

Erik, PD0EK




---
Deze e-mail is gecontroleerd op virussen door AVG.

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