Does anyone know if I can buy a Cal kit on its own? If so where?

If you mean the open short and 50ohm SMA

https://www.sdr-kits.net/calibration-information-for-DG8SAQ-VNWA-3-3EC

Designed for VNA callibration use.

72

Dom
M1KTA

I have seen a lot of YouTube videos on making your own DIY cal kits.
It looks fairly easy, and I even have the 100Ohm surface mount resistors.

Question: The main thing you get when you buy a cal kit, aside from flatness
over frequency and accuracy of the center pin length plane for short, open, load,
is the cal parameters that are supplied. My question is this; If I make my own,
we can I learn how they measure those cal kit parameters that they write on the
box/kit? I do have accuracy to VNA's at work that cost three times the value
of my new car, but I have little experience here and I am just getting started.
Thanks for any tips/pointers.

Neal

This depends greatly on what you're using the vna (and cal kit) for.

IMHO the most important thing you're testing is the load. Precision in open/short specs matter, but at a lower level than load measurement. If you use one of your more expensive vnas to test whatever you built/bought you can easily create a good cal kit. Especially if you're staying away from the higher (>1GHz) frequencies.

You might want to look at: http://www.keysight.com/main/redirector.jspx?action=ref&cname=EDITORIAL&ckey=798978&lc=eng&cc=US&nfr=-11143.0.00

-Mark

https://www.sdr-kits.net/calibration-information-for-DG8SAQ-VNWA-3-3EC

............................

data for the cheap one (i would only use this one with the older nanovna
cause its data is only good below 1.5 gig)

https://sdr-kits.net/documents/Amphenol_Cal_Standards_rev5.pdf

..........................

and here the rosenberger data (spec says up to 12 gig)

https://sdr-kits.net/documents/Rosenberger_Female_Cal_Standards_rev5.pdf

https://sdr-kits.net/documents/Rosenberger_Fairview_Male_Cal_Standards_rev1.pdf

https://www.sdr-kits.net/downloads/2014-Rosenberger-Fairview-male-female-Cal-standards.zip

....

yes a good cal kit costs as much as the v2 :-) ... but that´s not
because a good cal kit is expensive but cause the v2 is so cheap hi hi

greetz sigi dg9bfc

Am 16.07.2020 um 17:16 schrieb MarkZ:

> This depends greatly on what you're using the vna (and cal kit) for.
>
> IMHO the most important thing you're testing is the load. Precision in open/short specs matter, but at a lower level than load measurement. If you use one of your more expensive vnas to test whatever you built/bought you can easily create a good cal kit. Especially if you're staying away from the higher (>1GHz) frequencies.
>
> You might want to look at: http://www.keysight.com/main/redirector.jspx?action=ref&cname=EDITORIAL&ckey=798978&lc=eng&cc=US&nfr=-11143.0.00
>
> -Mark
>
>
>