Beware of cheap underperforming clones

As of 2022 there are many badly performing clones on the market. V2/3GHz NanoVNA uses parts like ADF4350 and AD8342 which are costly and clones have been cutting costs by using salvaged or reject parts.

See official store and look for V2 Plus4/V2 Plus4 Pro versions only to avoid getting a bad clone. We have stopped selling V2.2 versions since October 2020, so all V2 hardware that are not Plus or Plus4 are not made by us and we can not guarantee performance.

NanoVNA V2 Forum

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notch filters

Randy True 2020/12/31 09:52

I have some notch and bandpass filters that I want to check the functions of.
What settings in the menu do I select. I tried proof of concept, but didn't come up with the values I was expecting.

Randy W4RTT

Siegfried Jackstien 2020/12/31 13:21

what did you expect and what did you measure?? as long as the notches
are not deeper as the dynamic range of the v2 then you should be able to
measure them with just connecting them between port 0 and 1 (do a
calibration before!!)

dg9bfc sigi

Am 31.12.2020 um 09:52 schrieb Randy True:

Doug Reed 2021/01/04 20:08

Hi Randy.

I'd suggest your best training guide will probably be some of the YouTube videos by W2AEW. I've watched a number of his vids and they are pretty good. His video #316 might be a good place to start. A search for "youtube nanovna low pass filter" turned up quite a few videos. Don't quit watching just because they didn't use a NanoVNA. Whatever VNA they used, the setup is similar if taking the same measurement.

And another very good source of professional material to explain how to use a VNA can be found in the technical support files of the major equipment manufacturers. The old HP Archives, Tektronix, Agilent, Anritsu, etc, all have some excellent guides on making RF measurements with a VNA. The basics of how to use a VNA haven't changed. At most some of the function names have been changed to confuse you. :-) Figuring out which menu to look in could be your biggest problem.....

73, Doug Reed, N0NAS.

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