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Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the [email protected] group. *File:* NanoVNA User Guide - cho45 - reformat-a.pdf

Update as promised: Today, Thursday 26th September 2019 the status of my order from TomTop updated by '17 Track' to "arrived at local Post Office". I have collected, paid a nominal customs charge

Here's a ham radio application of where a zeroing function would simplify a process: Let's say you are building a vertical array for 40 meters - two vertical antennas, separated by some distance and

You flash in the new firmware. Look in the FILES & WIKI sections for instructions, utilities and files.

As hugen mentioned yesterday, he is thinking of re-integrating (merging?) the larger fonts with his current source code. The larger fonts were created in order to display Chinese characters.

How do you change to a different version of the firmware?

There are at least two versions of the firmware: one with 2 traces and larger font for an easier to use display or the one with four traces.? You load whichever one you like for your current project.

I purchased a NanoVNA from Amazon. I chose the white face version, just for looks. Reading through messages and manuals here, I see descriptions of unit with 4 traces. The one I received only has two

Rune, I cannot overstate how important your software is.? It is the difference between poor results + frustration vs joy joy joy! Thank you so much,Mike WY6K "... somewhere in the distance, there's a

John, On my NanoVNA if I have my cables attached as your photo shows; and set the frequency range to 50k-900MHz, performing a reset gives me a display with the reference level at -10 dB. When I

This measurement clearly shows why doing an isolation test hides the limited dynamic range of the nanoVNA and you are better of not doing isolation calibration. When not doing isolation calibration

I srr the same problem.? I will try recalling the cal.? Yhanks for the tip. Mike WY6K "... somewhere in the distance, there's a tower and a light, broadcastin' the resistance, through the rain and

Hi John, I guess I *could* make a "zero" offset function; at least for S21. But I don't think it would be particularly accurate, considering what you're trying to do? The premise of the app - which is

Hi Maurizio that's probably what is happening here although the new sweep freq was within the range that the cal covered. Ideally (hint to Rune!) the software would contain a "Zero the sweep" button

Hi all, please find attached a dynamic range test of the NanoVNA with several DC-18GHz precision SMA attenuator. Prior to the test I performed a fresh calibration. I think the result leaves some room

On Thu, Sep 26, 2019 at 08:37 AM, John AE5X wrote: Hi John , the VNA Agilent ( like hp8753D hp8720 hp8510C ) that I used at work , when you change parameter of frequency sweep used during the

It is tricky to *legally* ship batteries - in particular lithium ion batteries, especially as an individual or small company. When my company ships VNA calibration kits, we always put “Contains no

@ qrp Thank for the info. Seller did mention right information (without battery) & i opted for it because of restrictions from customs dept. for clearance of items with battery.

it's better to perform 32768 points IFT for TDR. But I suspect it will not fit into the chip memory :)

drkirkby@...> wrote: What I meant to say is that changing the system impedance doesn’t change the efficiency of the antenna. You change the efficiency by changing its losses. Dave