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As expected - verifying by using known length of KNOWN coax it is easily said then done .... I found "Belden YR 16664 " "factory cable" and cannot find any data on it... I found piece of worn-out

I always had this question as well Since you must enter a VF it must be calculating physical length. Incorrect as I pointed out - the graph shows the coax cable type and its VF , it also gives the

Before the VNA was available, I would just measure the C between center conductor + braid. Knowing how many pf per foot the cable was, it's a simple math calculation for the physical length.

--- Since the TDR graph did identify the coax type it is not clear if the "length" includes the VF - hence is it electrical or mechanical length ? --- I always had this question as well Since you

Yes, that's a great idea! I happen to use one a bit longer - https://www.amazon.com/gp/product/B07FC825HF/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 but I do use it often. Long and short USB

After you buy a sma to pl259 cable sttach i and the vna to plexiglass with velcro. That way you will not break. See attacheddei De K8HTB

Take a look at this nanoVNA TDR tutorial by W2AEW: https://youtu.be/9thbTC8-JtA VF must be entered numerically in order to obtain correct physical length. The X axis scale is defined by the stimulus

It is great, just be aware of the connector used (UFL). These are tiny and aren't intended for many insertions. I bought this same board (different vendor) and use it to train hams on the nanoVNA.

I did made two remeasures - one with open end and one with shorted end. They are within 300 mm from each other... Which one is "closer to reality " ? Since the TDR graph did identify the coax

I came across this NanoVNA/Analyzer test board on Amazon when I was shopping for some connectors. Anybody tried this? Seems to be a great way to validate operation. https://a.co/d/0tqeYuN Garosa

Hello Are you French speaking? 73 -- Fran?ois

A recommendation - you can get SMA-N or SMA-UHF adapters - but wrestling a stiff 1/2" coax like RG-213 or LMR-400 and directly connecting to your relatively tiny NanoVNA is asking to have the SMAs

You will also need adapters for connecting the NanoVNA's SMA connectors to your antenna cables. Don't forget to get the proper 'gender' of connector adapters! You would probably want an SMA male to

Seesii is a seller of NanoVNA products on Amazon. They probably buy in bulk from Hugen. There are many satisfied customers including some here in this group. The price is reasonable and what you

Thank you for the suggestion Roger. Sesi wasn't on that list of reputable manufacturers that Dragan mentioned I believe. Is that an issue? This one on the other hand is? Is it the same connectors

I own several NanoVNA's, a RigExpert AA55-Zoom and a MFJ-259. They are listed according to ease of use. If all you want to do is measure antennas and SWR up to 70 cm your best choice is a

There are no illegal clones, this is an open source project. If you are looking for the lowest price go to AliExpress, plenty of 3rd party (clones) manufacturers. If you don't mind paying a bit more,

Newbie here. I am interested in testing antennas for resonance and swr. 80m to 70cm. Both indoors and outdoors. I was thinking of buying an entry level antenna analyzer. Several helpful people

Display setup.

OK, I found the download for 0.5.5. It appears that when I load an s1p file all the trace images are just dots and not solid lines. Is there a setting that I am not familiar with that will change