No, it isn't "you just gotta know". Those of us who actually spend the
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time and make the effort to find an engineering sound reference online which everyone can access to answer the question(s), simply mean to help and give you a sound answer without your invoking any number of search engines and avoiding snake oil so prevalent on the www. Chances are we've "been there, done that" in our training/careers. There are sources online that put things much clearer and more succinctly than our own wording. Chances are, we know where to look for clear and concise and engineering sound answers which all can access and learn if they choose to pursue the URL's. I take the effort of helping others by emailing out sound, correct, no snake oil references to properly answer question(s) very seriously. If you don't want to pursue those links, I can't help you. Please don't put them in the "you just gotta know' category.....please..... Yes, I'm just a bit offended. *Example:* Just this week I had to put out yet another "take" on the 101 points allocated to any set frequency span. I just hope others read it and internalized it and are willing to pass it on to other newbies of the NANOVNA community. Nothing but VERY SIMPLE algebra, no "higher" math!!! Distance between points for a given frequency range = (Frequency Range) / 101. Of course, if you use SAVER, you can set any number of bins to greatlyincrease this frequency resolution. EXAMPLE: Frequency Range defined as 1 through 30 MHz. Point spacing (resolution: = (30 MHz - 1 MHz) / 101 = 29 MHz / 101 = 0.29 MHz If I then look specifically at 75/80 meters which spans 3.5 to 4.0 MHz, a total span of 0.5 MHz, I will have 1.74 (at best, 2) points in the whole band. This is not too terribly useful for looking at tuning a multiband antenna. EVERYONE: PLEASE,......P L E A S E,.............., take the above and pass the 101 point "gotcha" on to other new members of the NANOVNA community. PLEASE?? Dave - W?LEV On Fri, Jun 5, 2020 at 11:52 AM BruceN <k4tql@...> wrote:
Gary, --
*Dave - W?LEV* *Just Let Darwin Work* |