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Check out Pelican cases, they have some fairly small ones. Another source is Cabela's (or Walmart, perhaps) - a small gun case might work. Both of those will typically have foam inserts that you cut

Not soft, and you'd need to provide your own padding. But if interested in that retro look, search for "empty cigar box" on ebay. If not considered appropriate for a nanoVNA, could use it for your

While they don't have a zippered area, they do have plenty of room for all the goodies and can be customized with a pre-cut foam section that lets you take out pieces to fit items. Check these out at

I’ve searched for hours and so far come up empty handed... Does anyone have a suggestion for a soft, clamshell style, padded storage case that'll fit a NanoVNA-H4 with enough extra room for typical

I couldn't figure out who from the morass of comments, but somebody wrote "It’s not that important that the phase of the open and short are exactly 180 degrees apart". This is true only if the

And is probably a non trivial modification - you'd need a UI for entering and editing the param

50 years ago: PCAP with punch card decks....;-)

Dave, Thanks. This had been strictly an academic exercise. It is now something to file under "Why short HF whips are so inefficient" I need to start playing with one of the antenna simulation programs

The internal software doe not have not have that cal standard set in it. The side effect is the user then has to "do the math" and adjust as needed. Tedious but still better than not having anything.

[email protected]> wrote: Not if you want to take the unit mobile and use it without a computer, which for me at least is the big attraction of a NanoVNA. Jerry, KE7ER > If I want a laboratory, I

OK, I think I understand now. When calibrating a VNA to the standards, an adjustment is made by the software as to exactly where the reference plane is. The calibration could have been structured such

To do a proper cal on most modern VNA or PNA first the kit used it identified to the machine. The -032kit (SMA) from HP is know the the Agilent E8357 PNA by the kit number and will correct for any

[email protected]> wrote: If, after calibration, there were perfect opens and shorts* at the reference plane*, there would be dots. But the standards apply opens and shorts some distance from the

We should clarify something here regarding very short (as a function of free space wavelength) radiators. A short radiator (a short monopole or small open ended 'wires' of a transmission line)

Thank you Wofgang and Dave for pointing out the obvious I have two Bird type meters and slugs that have been considered to be the standard in commercial radio service for decades. They are rated at

Every video on the topic or all of them? What is wrong with it? As I see it he is just trying to make his homemade set behave similar to the HP one. Could you point to a better article/video about the

Jim's response is making some sense, I think. Ideal transmission lines and antenna wires, and ideal caps and inductors in a matching network, they should all be lossless. The primary issue with very

Links within the FAQ now work. thanks! I could understand the results shown in that FAQ if the VNA is calibrated using one set of O-S-L standards and the VNA is then used to measure the open and short

David, Having O-S-L correction factors only available in host software like nanovna-saver seems a fine solution. Though there are larger ARM processors that should have no trouble doing this sort of

For now I'm just hoping it will be close enough to at least somewhat improve the results. I wouldn't use them for a data-based calibration either, the idea is to maybe just fit delay and a single