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Under the assumption that one of the devices, vna or sa is Bad, pad the sa or the vna with say 10 db of pad. This will force a decent match, to the tune of a 20db return loss. Then do your filter loss

As a check try the same measurement with just a pad. Try a 3 or 6 db whatever pad you may have on hand. The suspect area I believe is either source or load termination either from the vna or the sa.

To anybody who is wondering how the switch works internally, mine was broken, so I tore it apart and photographed it. Then I enhanced the photo to explain the contacts. -Pete K7PEB

Its in the files section of the Nanovna group under presentations.? On Fri, 10 Jan 2020 at 4:23 PM, uni berry<uniden355@...> wrote: Hi Luc, Could you please show me the link for the english

I have an open circuit on the other end of some 50cm of coaxial cable. What is the easiest way to insert some delay to tune off that cable. NanoVna_save seems to need to calibrate the Vna after every

Yes, that’s exactly what I see

Sorry, after having rearranged my text, some not meant to send text had remained below 73, Hans DJ7BA Sorry, please ignore this remainder. Von: DJ7BA <dj7ba@...> Gesendet: Freitag, 10. Januar

Hi Jim, yes, once you got started using SimSmith, you will not want to miss it anymore. It is the perfect companion of NannVNA and NanoVNA saver or any VNA. You can not only “measure resonance from

Hi Luc, Could you please show me the link for the english translation of your presentation? I can not find File Section on your website. Regards [email protected]> wrote:

Test field 8 is a series LC. Hence at DC this is an Open. It most have a trajectory that rotates CW and cross the short side of the chart at the series resonate point. There after the Z must be

Just to be clear, you are saying that the vna gives an insertion loss that is different than what the SA TG provides and the difference is as much as 2- 3 dB?

There is a 2 to 3 dB difference between what the spec an says and the nanoVNA. I know the spec an is good as it is calibrated.

Is there a difference in S21 after thru calibration using a direct cable between CH0 and CH1? That should not be as the thru calibration should normalize S21 -- NanoVNA Wiki:

Hello Klaus, It looks like, tha we have slightly differen PCB layouts. My PCB layout was posted in number 9245. 73, Rudi DL5FA

Hello Klaus, I am glad that your RF Demo Kit now works as it should. I think it is mainly for learning, and not for every day work. 73, Rudi DL5FA

Thanks for the replies! Actually My spec an has a tracking gen which I normalize. I noticed after doing a cal on the nanovna and nanoVNA F that there is a 2 to 3 dB difference in the measurement. Used

Sometimes the 'scale' function needs to be reset to 1:1. Bob

From: Robert E. Gross Where can I get better manual or instructions? ========================== https://www.amazon.co.uk/guide-NanoVNA-Christoph-Schw%C3%A4rzler-ebook/dp/B083BB82G5/ David -- SatSignal

This is correct. 8 contains a series capacitor. This is an isolator at low frequency.

Quite right, whatever impedance but no signal in on CH1 will show 50 ohm. Thanks. /Torbjorn