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Re: NanoVna Parts
Is true its handy to have that switch working, but you can still fully operate the nanovna without it. Everything from the touchscreen can be done, including drag and drop the markers... Cheers! LL
By CT2FZI · #855 ·
Re: Annotated nanoVNA menu diagram
Hi Oristo This looks great! Really helpful. I have spotted a couple of differences between it and what I'm seeing with the 2 trace antenna analyser firmware on my Nano. I believe the 2 trace version
By Mike Brown · #854 ·
NanoVna Parts
Anyone know where to get parts for these. I broke the Multifunctional switch (Jog Switch) on mine and would like to buy a replacement. Jim K.
By jimcking@... · #853 ·
Re: Measurement challenge
Fahnestock clips take me back to Jr. High School Electric shop, where I got my ham radio license in 1956. Stuart. K6YAZ
By Stuart Landau · #852 ·
Re: Battery size
Hello All ! with my unit the charging is limited to just under 500ma regardless even tho the charger is I am using is good for twice that much. So far I am pretty impressed with this little gizmo !
By N8AUM · #851 ·
Re: Problem with shorts and load in cal kits
Dave, I solved this to some extent by cutting screwdriver slots in the back of the short and load, allowing the contacts to be held (somewhat) steady while the nut is tightened. It is a bit awkward to
By John Gord · #850 ·
Re: Some basic load measurements
The error mathematics for a one port VNA measurement with SOL is interesting to investigate. Given the assumption that the short and load are handled as ideal with reflection coefficients of -1 and 1,
By alan victor · #849 ·
Re: Some basic load measurements
There appears to be TWO different loads provided with the NanoVNA instrument. I reported this in an earlier message. The 50 ohm termination with the white gecko unit was pretty poor and demonstrated a
By alan victor · #848 ·
Re: Measurement challenge
Wow, I have not seen those since I was a child, say age 13! Yes, I suppose they would work fine! What I had in mind and what I am currently having pretty good success with is a Pomoma grabber cable to
By alan victor · #847 ·
Test drivers wanted.
Anybody wish to volunteer to perform the task of loading and comparing firmware¡¯s and/or versions/release levels? It would be nice to avoid the judgmental pitting of one against any all others; so I
By Gary O'Neil · #846 ·
Re: Some basic load measurements
I made some further measurements using the 8753 setup. I did the OSL cal on one port and looked at both the Smith chart as well as S11. I didn't bother with the cheap BNC load.? I used averaging (16)
By Peter Gottlieb · #845 ·
Re: Measurement challenge
Alan, Alligator clips are so yesterday... I've got some great Fahnestock clips for you! ;-)
By Larry Rothman · #844 ·
Re: Problem with shorts and load in cal kits
Yes, I had thought about a video on that. I have a video camera, but since I am a Unix person I had problems getting the data off of the card reader. I tried a virtual machine, but that didn¡¯t work.
By Dr. David Kirkby from Kirkby Microwave Ltd <drkirkby@...> · #843 ·
Re: Another case DESIGN
I agree Dave, I was thinking of a larger case with N connectors with short pig tails to SMA. I would love to see if there is a way to use a ls\larger display. Has anyone found a larger display that
By JIM Rogers · #842 ·
Re: Problem with shorts and load in cal kits
Good observation Dave; Alan¡¯s suggestion to use SMA Male-Female adapters to protect the connectors on the NanoVNA would be prudent also. Both also give us something to scrounge for and haggle a
By Gary O'Neil · #841 ·
Re: Annotated nanoVNA menu diagram
Looks real good. I think it needs a button to get you back to the main page. I guess the browser back is the only way to do that Thanks Frank
By Frank S · #840 ·
Re: Measurement challenge
Or turn that around: how sloppy can you be with HF construction techniques and still have reasonable results? Peter
By Peter Gottlieb · #839 ·
Re: Measurement challenge
Yes, that is an excellent test. If you make use of a somewhat narrow sweep so with 101 data points you can obtain the required resolution, you can find the +/- 45 degree phase shift points for S21.
By alan victor · #838 ·
Re: Annotated nanoVNA menu diagram
Terrific addition to our knowledge of the NanoVNA. Thank you very much, Stuart K6YAZLos Angeles, USA
By Stuart Landau · #837 ·
Annotated nanoVNA menu diagram
http://ormpoa.altervista.org/Hnano.htm That URL involves neither JavaScript nor cookies. It is my first CSS learning exercise and certainly buggy. For example, branches wrap badly on narrow displays.
By Oristo · #836 ·