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I will lookup how to use NanoSaver. Thanks Darrell Sent from my over-rated IPhone 7 Plus. Any Mis-spellings or grammar errors are due to my IPhone auto correct feature.

Thank you. Excuse my beginner questions but it seems I have a lot to learn. I will be using a auto tuner. I was just trying to find out what my SWR would be on the different bands and where it would

Dave is right about this: Many hams do simple tie their 50 or 75 ohm coax directly into the center-fed dipole. Often that works just fine, so OK to just flip something up and try the baluns and chokes

You are most concerned with the impedance the end of the coax presents to your matching network/radio. Therefore, you should measure at the shack end of the coax. Calibrate the VNA as a stand-alone

As far as a counterpoise goes: As a single-ended, common mode source/load, the fields must go somewhere. They don't just abruptly stop at the feed of the EFHW (end fed half wave). Yes, the coaxial

It is my understanding that this Matchbox is a 9:1. The system gets good reviews on 80-10m. So if I am using this system, would I need to calibrate the NanoVNA using the coax, then get my measurements

Not quite correct! Ladder line is a transmission line just like coaxial line. However, they perform their function differently. 1) The center fed dipole is a balanced source/load - differential

I am slowly getting parts in to try my end fed long wire antenna. Correct me if I am wrong. With a center fed dipole, the 300 or 450 ohm ladder line feeding it is part of the antenna. I would think I

This doesn't answer your question, but I believe you could achieve the same result by calibrating the VNA through your run of coax to the antenna feed point. So perhaps have an assistant up on the

I am going to be working with wire antennas in the 3 to 30 MHz range. I would like to attach the VNA at the antenna feed point and have the antenna at operating height. Therefore I would like to use

Polyethylene and PTFE (Teflon) are notorious for being not-sticky and paint won't stick. So they make primers that purport to either give a "tooth" to the surface or that make the surface otherwise

What is “self-etching primer”?

A thin coat of conductive paint over a coat of self etching primer will take care of any and all ESD issues. I use it a lot when installing RF assemblies into cheap plastic project boxes. The

How can I put nanovna Saver into Debug mode? John

You could be missing the correct Microsoft Visual C++ package Here are the links: This is for the VNA Saver software page and it mentions the issue further down

S parameters get used in matrix calculations on arbitrarily complex networks, they have to be mathematically correct. The "Return Loss" in dB, on the other hand, strikes me as a handy way to casually

The book is available (legally) on the web as a pdf: http://www.w3pga.org/Antenna%20Books/Reflections%20III.pdf Maxwell had an amazing career, and knew this stuff cold. Lots of good insights in that

Clarifying it seems unlikely to appreciably mitigate Wiki confusion...

Thanks.

https://store.cq-amateur-radio.com/shop/reflections-iii/