Triband antenna
Hi, new user so thanks for your patience. Calibrated and confirmed appropriate procedure per reference videos. Did a wide sweep, and then resonant sweeps for two different triband antennas and found:
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Kj7trf
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#20854
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Re: Make menu buttons/font larger?
hugen has recently released a version of DiSlord's v1.0.45, with larger font, for H & H4 (with a few other changes too): https://github.com/hugen79/NanoVNA-H/releases/tag/1.0.45 Not sure if this
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cdmackay
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#20853
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Tone control capability
Is there a capability to control the tone used in the sweep or CW? Iv been using it as a tone generator, but I'd like to be able to control the tone freq and level. Thanks a ton, John
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John Brent - VA3HQB
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#20852
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Re: Pitfalls of measuring components with the NanoVNA
#measurement
Roger: I very much like the S11 phase vs impedance phase chart you did up for us. This sure makes the difference easy to understand :-) Following along... -- VE6WGM
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Gregg Messenger VE6WGM
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#20851
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Re: Pitfalls of measuring components with the NanoVNA
#measurement
I am happy with where this thread has gone. The information is excellent and clearly laid out, and did not digress into anarchy and mayhem :-) Thank you Roger (and others). If anyone observes any
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Gregg Messenger VE6WGM
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#20849
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Re: Pitfalls of measuring components with the NanoVNA
#measurement
This next post is about measuring inductors and self-resonance. I have an old multi-layer choke in my junk box and I measured it with the NanoVNA. My goal is to post some graphs of the results and
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Roger Need
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#20848
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Re: Pitfalls of measuring components with the NanoVNA
#measurement
Hi Roger et al, Ooooppppssss .... I think I blindly stepped into something .... or 'stepped onto' something ... :) I guess it is going to take me awhile to understand that issue .... and the shape of
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tinkera123
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#20847
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Re: Pitfalls of measuring components with the NanoVNA
#measurement
Roger- Your latest message very clearly described the differences between a reflection coefficient phase angle and the phase angle associated with a complex impedance. Sounds like most of the recent
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Ray Anderson
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#20846
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Re: Problem with NanoVNA Saver 0.2.2.1
You are using an ancient version, see if it is the same with the recent one. karlheinz.merscher@...> wrote:
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Dragan Milivojevic
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#20845
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Re: Pitfalls of measuring components with the NanoVNA
#measurement
Roger, you are indeed correct. I also appreciated Arie's comment. Gregg is also correct for the reflected signal measurement - and in saying that this is related to the V/I/phase in the DUT; indeed
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Stan Dye
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#20844
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Problem with NanoVNA Saver 0.2.2.1
Hello, I recently have problems to display Marker 1, Marker 2, Marker 3 and so on . The graphs are shown but I miss the Marker 1, Marker 2, Marker 3 . values (see yellow colour) Anybody out there who
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Karl-Heinz Merscher <karlheinz.merscher@...>
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#20843
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Re: Pitfalls of measuring components with the NanoVNA
#measurement
This is a friendly group and I do not wish to get into some kind of argument with others. If I have posted something in this group which is wrong or confusing please quote what I said and tell me why
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Roger Need
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#20842
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Re: Pitfalls of measuring components with the NanoVNA
#measurement
Arie, Thank you for your comment. That is exactly the misunderstanding I was referring to in my previous post. I am also on Facebook and I have seen several posts there that stated that the "S11 phase
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Roger Need
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#20841
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Re: Pitfalls of measuring components with the NanoVNA
#measurement
Hi Manfred, You note that you cannot use NanoVNA Saver under Windows XP. I inherited a laptop running Windows XP from my daughter. I just tried that if I copy the NanoVNA-App to the C: / root
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Gyula Molnar
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#20840
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Re: Pitfalls of measuring components with the NanoVNA
#measurement
I don't need to "prove" you wrong. Without phase, reactance just becomes a non-dissipative circuit element that doesn't do much outside of resistive losses. One can't have a reactive component without
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W0LEV
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#20839
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Re: Pitfalls of measuring components with the NanoVNA
#measurement
If you explore NanoVNA-App you will find lots of things. Right click on the graph window to find numerous options. Clicking on the text in the upper left corner of the graph window will allow you to
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Jim Shorney
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#20838
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Re: Pitfalls of measuring components with the NanoVNA
#measurement
Roger, I didn't know about that software. I just downloaded it, but it doesn't seem to work with standard firmware, and I'm hesitant about changing to a different firmware, given that the stock one
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Manfred Mornhinweg
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#20837
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Re: Pitfalls of measuring components with the NanoVNA
#measurement
Maybe the misunderstanding is in the fact that the reflectioncoefficient has another phaseangle than the phaseangle between current and voltage on the load. These are two different things. The
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Arie Kleingeld PA3A
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#20836
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Re: Pitfalls of measuring components with the NanoVNA
#measurement
Gregg- I concur with your understanding 100%. Reflection phase with an open is zero degrees and is 180 degrees with a short. Reactive loads (inductive or capacitive) will have phase angles somewhere
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Ray Anderson
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#20835
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Re: Pitfalls of measuring components with the NanoVNA
#measurement
Where Roger and I have differed in the past is with regards to the concept of the S11 phase as measured by the nanoVNA. While Roger has firmly stated in previous conversations that there is no
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Gregg Messenger VE6WGM
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#20834
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