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Jerry has the right answer. I've attached results from a 10M dipole at 30 feet. I calibrated with the feedline, then attached the antenna and raised it to final height. Then, I took these

Well said Cromwell. W8SBH

David, Yes, you can use the VNA in the shack calibrated in the usual way with short cables. It will see what the transmitter sees. Calibrating with your long run of coax instead of the short cables

Thank you Igor:) I'm fairly new to this and I wasn't sure of the official way to report things or even if it was just me doing something wrong and they weren't really problems. 73, John

There are multiple people that did that, just not on this list.

I see. I had a long response to this typed up but decided to not add my amateur lawyer views to this and I deleted it. At this point people should probably do what they feel comfortable with, in terms

Same for me. I reported this in: https://github.com/NanoVNA-Saver/nanovna-saver/issues/314 73 !!

Hi Dave, On this list there are quite a few who are not amateur radio users. I play at HF with my amateur license and very rarely at 144 or 450 MHz. I hardly need a nanoVNA for my casual use of

Hi I have just downloaded NanoVNA Saver V0.3.7 for Windows 7 64bit and I have a couple of questions. In V0.3.7 it starts up with a very wide Marker area with the analysis button at the bottom which

Here's an article by Times Microwave https://www.timesmicrowave.com/DataSheets/Literature/Current%20innovations%20in%20phase%20stable%20coaxial%20cable.pdf 1000ppm (0.1%) change over 20 degrees

Some people preserved the code, you can find the links in this group: /g/open-nanovna/

Dave,If you want to be in compliance with the GPL, you cannot publicly share any binaries without the corresponding source code.Since OneofEleven deleted her Github repo - there is no source code

I may be dumb and old but I have the MyAntennas 4010 antenna and just hooked my nanoVNA H4 up to my shack coax for the readings. Isn’t the result I see on the VNA the same thing my transmitter sees?

A further thought on accuracy of standards. I suspect the transmission impedance of most coax cables which claim to be 50 ohm probably has a 2-5% tolerance between reels, and possibly 1% variation

Surely, as I recall, it is not the accuracy of the dc resistance of the load that is most important, but the ac impedance of the whole device as the frequency increases. Inductance of the resistor(s)

I'm glad I was able to give you a good tip. I wish you a successful experiment. -- *** If you are not part of the solution, then you are the problem. ( http://ha3hz.hu/ ) ***

use 6 @ at 300 ohm smd resistor 1% or https://hforsten.com/improved-homemade-vna.html (middle page) https://www.instructables.com/id/23GHz-SMA-Calibration-Kit/ (23ghz) hi, Red Owl

I found it interesting and gratifying when I measured an antenna via lots of RG-213 with my newly acquired R-X meter.? It showed around 51 Ohms at resonance.? I do that routinely with the nano but

When calibrating at the end of a long cable, especially at higher frequencies, remember that the cable phase influence will change significantly if the temperature changes. Teflon, particularly, has a

Jim wrote: Indeed. For most of us operating below 30mhz, calibrating the VNA through 100 feet of RG8X should be just fine. If you have your doubts, then compare it once with VNA reading taken directly