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well , had this question as well but after reading thru this lot,it still doesent to anwer the original question,its harder to understand when ppl quote what been said already in the thread,just makes

I just had the same problem a couple of days ago. A web search found a statement that at least some phones with USB-C connectors still need the OTG adapter. I went back to using an older phone with

Hi all i have an old version H vna,its running hugens 555 firmware,just wondered the max number of save slots it has,just wondered if i can cal it too all the hf and vhf amature bands excert 6+ 4

Good morning Barry super.... unfortunately I have missed the three sessions ,and this is not recorded I would be happy to share your 200 slides and ask questions . I have experiment with VNA an

Rather than TDR - (where the resolution is c/(frequency step size)) I'd suggest just measuring phase at your frequency of interest - You can directly display phase vs frequency, set a marker or two,

Barry, I enjoyed your talk yesterday evening .. Next Monday at 7PM is fine with me… Should I use the same zoom invite? Tnx & 73s Doug KD4NC Kennesaw, Ga

Yes, open or shorted gives equivalent measurements (one is phase-reversed from the other). And terminated in the characteristic impedance of the cable will give an 'infinite' measurement (no

Some very important observations in previous responses: 1 - to phase match, you don't need any particular value, just to make them the same for two cables 2 - at your target frequency, 5 degrees is

I installed the NanoVna App on my Android hoping to use it on my phone. My phone has a micro usb C socket with usb cable and I normally use this cable to connect to my PC to run NanoVNASave. I bought

Probably want end "open" so you get a reflection to measure the length, not terminated in 50 ohms.

THANK YOU! That helps tremendously.

Sorry...S11 delay. Cable terminated at one end only to allow for trimming.

The time didn't work the first time, and nothing has changed so it won't work again. Steve W5RRX Las Cruces, NM

They also make cool little length adjusters, at least in SMA. I've not seen one in N or UHF. They're not cheap, at least new, but they might show up surplus. Someone with a big box of adapters might

I think you got it correct (almost)... But you see a double delay cause its up and back down the cable... 26.8x2=53.6... And... You need them the same length / delay... If both are 52..or 53 does not

You're seeing the round trip time of ~50 ns What does the S21 me

S11 or S21 delay? On S11 2x delay (to cable end and back) On S21 1x delay (from one port to another(

I am having difficulty constructing a set of phase matched cables using my NanoVNA SAA-2N and the tutorial available at this link

Might I suggest that we continue to meet via Zoom on Monday evenings at 7 pm (EST) to share what we know about the VNA? I don’t see my talk as a “lecture” to record and watch. I’m not a VNA

Great, thanks. So you get the same results if the end is either open or shorted right? Reverse the cable and you can confirm where the break is. With a dummy load the cable length should read very