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*ERROR......ERROR.......SEE THE RED PARAGRAH* I didn't proof the write-up as I was becoming fatigued typing. Sorry guys and gals: Steve, I completely share our frustration! This is the primary reason

Dave (W0LEV), THANK YOU for sharing that! Also, thanks for sharing the attachments! 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist, RFI ARRL Asst.

Steve, I completely share our frustration! This is the primary reason I advise and avoid information by hams and other amateurs in the discipline presented on YouTuBe. Much of the information

While it is true, no calibration is required to see the resonate points of the plate choke. You will see in the log magnitude sweep the “dips” at particular frequencies. However, you have no

Actually looking for resonances on a plate choke doesn't even "require" calibration. Since you're only looking for the frequencies of resonances, no cal. is required. Treat it like you would a grid

I looked at W8JI's page on plate chokes..... and trying to figure out how he does the test cables and general setup for testing plate chokes...esp to arrive at RP values across 160-10m..and also Q,

What he said! Please. Regards, Kirk, NT0Z My book, "Stealth Amateur Radio," is now available from www.stealthamateur.com and on the Amazon Kindle (soon)

It would be a good practice that if you're using a long cable, the calibration frequency step size should be small enough that you don't get a phase wrap between steps. It's like FFT based TDR. That

I've been recently trying to piece together all the various conflicting information on balun and unun measurement with the NanoVNA. The problem is not a lack of tutorials, videos, instructions...it is

Why do you think that your new NanoVNA needs a firmware upgrade? If you purchase a known version, there should be no reason that a new device should immediately need a firmware upgrade. After you have

Wouldn't a magnet answer that question? -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, ?a critter that can be killed but can't

Getting down in the weeds here, but it's not so much the compiler as the parsing library it uses (which might be different at run time and compile time). You d

For SnP (Touchstone, S1P, S2P, etc.) files it's easy, because the values are space delimited. What's *not* easy is that most of the libraries won't do it for you. You have to parse the data fields,

Some software is localized, and when you put out a number, by default it uses comma as the "decimal point". In particular the various MS Visual whatevers can do this for dialogs. What's sort of

Did you change the frequencies in the cal file, or the actual calibration data, keeping the frequencies the same? In general, yes, there's likely some interpolation function.

I would recommend keeping the firmware version that it comes with until you have used it for awhile and become very familiar with its operation. Newer versions of firmware have added many useful

Well, they're typically rated at 500 mate/demate cycles, which is a lot, compared to some of those tiny "snap on" connector which are more like 5-10 cycles. And that spec is more like a "what it's

Hi, I am awaiting delivery of my first nanovna H4. It is going to be used to examine various types of mobile VHF aerial sytems swr performance. I have never used one and I do NOT know which version or

Try this link for discussions on this subject... /g/nanovna-users/topic/97089104?p=Created%2C%2C%2C20%2C1%2C0%2C0 Roger

Terry, yes, this list has lots of traffic. To Unsubscribe, use the Unsubscribe link at the very bottom of any one of the emails you get from the group. There is also a link to Mute a topic, i.e. the