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Peter: It really, really is a fantastic book--- The KINDLE digital download version has links, diagrams and explanatory text--- DO THIS: 1. Estimate the price of your ham shack's current equipment.

Just remember that if you want to know where the antenna is resonant (reactance = 0) you have to measure at the feedpoint of the antenna NOT at the end of the transmission line in your hamshack.

Thanks Steve!

Thanks Bill, Maybe someone can explain it in a message? I think our radio club may have a copy, but I'm not visiting for a few weeks. Thanks

Look at the display options to show R and X traces. But the easiest way to see resonance is on the default smith chart- wherever the trace crosses the horizontal axis is a resonance point. You can

Peter: Yes. Buy a copy of "NanoVNA EXPLAINED" by Mike Richards, G4WNC. It's a RSGB book. Get it on Amazon. I have the Kindle version downloaded immediately after buying it. Very thorough and easy

Thanks Bill, Sorry, my image didn't appear as I had planned. So can resistance and reactance be displayed at the same time (I assume multiple traces?). Can anyone direct to a tutorial? Thanks

Yes NanoVNA can measure resistance and reactance as well as a Smith chart. Resonance is the frequency at which the antenna is purely resistive, and no reactance. You seem to be already aware that the

Greetings, I've recently completed the construction of my first 'home brew' antenna (1/4 wave vertical). A radio friend of mine suggests I should look at resonance as well as SWR. SWR is fine, but I

try cw mode

All, The groups.io fee for maintaining this group has been paid. I received several donations after I sent the notice that the amount required had been reached and have refunded those donations. For

The screenshot function was finally solved, the reason was that there was a problem with my chip, I didn't find that the SD_CS pins were pulled low when I probed the waveform, which was very strange,

This happens when you have common mode issues and the outer surface of the coax shield has become part of the antenna. For example - A dipole connect to coax with out a balun will have this

I have a -F and I have never encountered this problem with either a 10 m coaxial or a 40 m coaxial (3-30 MHz). I make my measurements from the station, the NanoVNA being connected to my PC. The

Whenever I have made measurements to antennas I have had very different results -even calibrating the antenna feed coaxial cable- than placing my VNA-F with a 10 cm. patch cord directly to the

RE: "digging in" Old proverb: "When you're up to your ass in alligators it's hard to remember that your job was to drain the swamp!" Bill K2TNO [email protected]> wrote:

The best way to conquer the "steep learning curve" is to just dig in..... Dave - W?LEV [email protected]> wrote: -- Dave - W?LEV

Yes it can do much more and it has a steep learning curve... Roger

SimSmith can do all this and far more..... And.....its freeware: https://www.ae6ty.com/smith_charts/ And an excellent tutorial: https://www.w0qe.com/SimSmith.html Dave -

There is an excellent free program for Windows that really helps to understand how transmission lines work. It is called TLDetails >> https://www.ac6la.com/tldetails1.html Using this program you