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A little perspective:
I bought my nanoVNA V2, and also a spectrum analyzer, on Ali Express, well before I even knew about this user group. I came across it while looking for something else, and it immediately caught my attention. I had used a full feature VNA and spectrum analyzer once (costing about $100,000 and $30,000, respectively, or so I was told), and said to myself: hey, this looks neat and would come in handy for various projects I'm working on. I chose the model and the store on Ali based on getting something that would cover the 2.45 GHz ISM band, at a price less than $70 (to avoid paying customs), and generally at minimum price.

Unfortunately, the hardware arrived with almost 0 documentation. The only thing sent was a menu map, which was more or less useless. I was given a link to website, which had some minimal instructions which could not be carried out for calibrating. Corresponding with the vendor was completely unsatisfactory -- I am sure they have no idea what they are selling. For them if they sell a VNA, a pair of sneakers, or sex toys -- its exactly the same thing -- what is the profit margin. (The 35-4400 MHz Spectrum Analyzer came with even less documentation, and I have not yet managed to get it to work).

I had never heard of OwO, Hugens, or any of the dedicated people who developed firmware or software, or help other people on this group, until I came across this group searching for some kind of manual. All power to all of you! And many thanks!

But everyone should be aware that there is a commercial jungle out there. My suspicion is that many more people buy a nanoVNA because they saw a commercial advertisement, e.g. on Amazon or Ali, rather than from reading this group's discourse. Thus appeals in this group to respect the developers' wishes will probably have little effect. My advice to all developers, of whatever, is to first decide what your motivation is. If it is to profit from your work, which is perfectly legitimate, then you should take all of the legal precautions necessary, e.g. patent protection, secrecy, etc. This can be quite costly - probably a minimum of $10,000 for each country over the lifetime of the patent, if you know enough to file yourself (otherwise twice or thrice this figure). And if you need to defend a patent against infringement, the costs can easily get to the M$ range. Know that Murphy's law applies here - if something can be copied, and if it is worthwhile to copy, then it will be copied.

Or, a developer can decide that his or her motivation is not monetary, but rather helping mankind, helping the profession or the hobby, or even obtaining or strengthening one's reputation in the technical community. Then you might tell all and share all, and feel some satisfaction that others are benefitting from your efforts. In my opinion, any middle ground between these two approaches is apt to be frustrating.

With regards and gratitude,
Ray 4X1RB

From the home of
Prof. Emeritus Raymond (Reuven) Boxman School of Electrical
Engineering Tel Aviv University
Cell: ???? +972 544 634 217

CEO Clear Wave Ltd.? ????????????? Scientific
Writing Courses: ???????


-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of
OwO
Sent: ????? 02 ?????? 2021 16:20
To: [email protected]
Subject: Re: [nanovna-users] SAA-2N V2.2 DISPLAY ISSUES

I asked?, not forced, people to not help vendors that are selling copies of my design against my will.

How hard is it to simply STOP producing and selling copies of my design? My request is as simple as it gets. Is it that important to Hugen to make a profit off of my work and screw the original developers over while doing it?

On 7 Sep 2021, at 3:42, jmr via groups.io <jmrhzu@...> wrote:

?"I'm wondering what the advantages and disadvantages are of each."

In my opinion all of the jigs shown in this thread significantly degrade the true potential of the nanovna. They are fine if you just want to roughly measure reactance across LF through to VHF but they will significantly degrade the performance of the nanovna for critical measurements like component ESR.

A little perspective:
I bought my nanoVNA V2, and also a spectrum analyzer, on Ali Express, well before I even knew about this user group. I came across it while looking for something else, and it immediately caught my attention. I had used a full feature VNA and spectrum analyzer once (costing about $100,000 and $30,000, respectively, or so I was told), and said to myself: hey, this looks neat and would come in handy for various projects I'm working on. I chose the model and the store on Ali based on getting something that would cover the 2.45 GHz ISM band, at a price less than $70 (to avoid paying customs), and generally at minimum price.

Unfortunately, the hardware arrived with almost 0 documentation. The only thing sent was a menu map, which was more or less useless. I was given a link to website, which had some minimal instructions which could not be carried out for calibrating. Corresponding with the vendor was completely unsatisfactory -- I am sure they have no idea what they are selling. For them if they sell a VNA, a pair of sneakers, or sex toys -- its exactly the same thing -- what is the profit margin. (The 35-4400 MHz Spectrum Analyzer came with even less documentation, and I have not yet managed to get it to work).

I had never heard of OwO, Hugens, or any of the dedicated people who developed firmware or software, or help other people on this group, until I came across this group searching for some kind of manual. All power to all of you! And many thanks!

But everyone should be aware that there is a commercial jungle out there. My suspicion is that many more people buy a nanoVNA because they saw a commercial advertisement, e.g. on Amazon or Ali, rather than from reading this group's discourse. Thus appeals in this group to respect the developers' wishes will probably have little effect. My advice to all developers, of whatever, is to first decide what your motivation is. If it is to profit from your work, which is perfectly legitimate, then you should take all of the legal precautions necessary, e.g. patent protection, secrecy, etc. This can be quite costly - probably a minimum of $10,000 for each country over the lifetime of the patent, if you know enough to file yourself (otherwise twice or thrice this figure). And if you need to defend a patent against infringement, the costs can easily get to the M$ range. Know that Murphy's law applies here - if something can be copied, and if it is worthwhile to copy, then it will be copied.

Or, a developer can decide that his or her motivation is not monetary, but rather helping mankind, helping the profession or the hobby, or even obtaining or strengthening one's reputation in the technical community. Then you might tell all and share all, and feel some satisfaction that others are benefitting from your efforts. In my opinion, any middle ground between these two approaches is apt to be frustrating.

With regards and gratitude,
Ray 4X1RB

From the home of
Prof. Emeritus Raymond (Reuven) Boxman
School of Electrical Engineering
Tel Aviv University
Cell: ???? +972 544 634 217

CEO Clear Wave Ltd.? ?????????????
Scientific Writing Courses: ???????


-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of OwO
Sent: ????? 02 ?????? 2021 16:20
To: [email protected]
Subject: Re: [nanovna-users] SAA-2N V2.2 DISPLAY ISSUES

I asked?, not forced, people to not help vendors that are selling copies of my design against my will.

How hard is it to simply STOP producing and selling copies of my design? My request is as simple as it gets. Is it that important to Hugen to make a profit off of my work and screw the original developers over while doing it?