Anyone know about how to calibrate phase in nanovna , i have a 2 ways phasing harness from rg11 75 that i made 10 years ago and never try and forget on wich frequency were they calculated , so i need to look at there response and if they are made near correct , and what is the acceptable error i can have . phase degree .

I have never used the nanovna before but I have made a few phasing harnesses with the limited info on the internet.

Couldn't you fit two 50ohm dummy loads on the pl259 plugs and then sweep the band to see where the swr is at it's lowest? This might give an indication of the freq you made them for.

I think you will have some reflections with those connectors and adaptors. There was a German page on the internet that showed how to make one really nice but I can't find it now. If I do I will upload it.

Is that 50Ω coax? I'm sure you're supposed to use either 75 or 100 for it to match properly

75! 100%

RG11 (as mentioned) is 75ohm nominal impedance.

I just found that link, some really good info... (just scroll down)

http://dg7ybn.de/Phasing/Phasing.htm

D'oh I didn't read that bit properly and was looking more at the picture.
Please excuse me I've had a heavy weekend. Right.... time for bed!

it is good to thank you all . yes i use a high quality belden rg11 , 75ohms.thanks also guys for the link already have a heavy search before i posted .
King Croccy this german site i notice before , even some spanish one and some youtube , but myquestion is how to have to read that phase on a network , if do you have any experience, i wont use it , only just to have some knowledge.thanks again .