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Jog Switch does nothing??
I have a NanoVNA (2.8" screen) from about 2020. Overall it works well, but the Jog Switch doesn't do anything. The touch screen works fine, it calibrates OK and measures SWR with ease... but the jog
By DouglasK · #40052 ·
Re: How do I measure this Maxwell choke?
Since the center conductor closes fields to the interior surface of the coax shield, it does not interact with external fields. Therefore, it's only necessary to connect the outer shield between the
By W0LEV · #40051 ·
Re: How do I measure this Maxwell choke?
I do a 'loss' measurement rather than an impedance measurement. To do this, do a 'through' measurement (S21), either on a single wire, or both wires together, connected to the center pins of the
By Stan Dye · #40046 ·
How do I measure this Maxwell choke?
I have made a Maxwell choke for my ladder line feed to my doublet. I would like to check the common mode impedance with the nanovna. Do I just use one of the wires for the reading or both? A
By John Leach K0JHL · #40045 ·
Re: Windows 11 & NanoVNA H4
On Sun, Apr 13, 2025 at 02:14 PM, CLIFTON HEAD wrote: Hi you con download the nanovna-App at https://github.com/DiSlord/NanoVNA-App/blob/main/Win32/Release/NanoVNA-App.exe some time is sufficient
By Maurizio IZ1MDJ · #40044 ·
Re: Windows 11 & NanoVNA H4
I have problems with the NanoVNAsaver this would be helpful. The app that comes up is under development I see nothing more. Can you please give a link for what your talking
By CLIFTON HEAD · #40043 ·
Re: Windows 11 & NanoVNA H4
Mark, If you use NanoVNA app (not NanoVNA Saver) you can remote the screen to your PC. If you have a projector or large TV display then your audience can see what you are doing right on the NanoVNA
By Roger Need · #40042 ·
Re: Windows 11 & NanoVNA H4
Dean, Had a look at the NanoVNAsaver page. The wiki does not seem to have a 'How to get started page'. Can you please give some tips for getting started? 73 Jon, VU2JO [email protected]>
By Jon · #40041 ·
Re: Windows 11 & NanoVNA H4
Mark, I know of NanoVNAsaver https://nanovna.com/?page_id=90 as software to be run on your laptop. There is a little bit of a learning curve using the software but there are a number of Youtube videos
By Dean - KC9REN · #40040 ·
Re: Dummy Antenna and FM Alignment
You're right Brian, I'm sending you an email. Thanks Jeff for the clarification, I did not understand this line nor why it was in the sheet. It's clearer now!
By AArnaud · #40039 ·
Re: Windows 11 & NanoVNA H4
If you are planning on presenting the directivity and radiation pattern of the loop, that is a better job for the TINYSA, not the NANOVNA. The NANOVNA works in impedance space. A SA operates in the
By W0LEV · #40038 ·
Re: Windows 11 & NanoVNA H4
No problem connecting to USB, but you¡¯ll need to choose some software to run on the PC. ?THere¡¯s a NanoVNA App, NanoVNA-Saver (which is python under the hood), and probably others. the user
By Jim Lux · #40037 ·
Windows 11 & NanoVNA H4
I'm new to the group, and also a new user of the H4. I am building a magnetic loop antenna and will be doing a presentation at our ham radio club about the antenna. I would like to show the test
By Mark · #40036 ·
Re: Dummy Antenna and FM Alignment
The alignment instructions say it "shall be carried out below the limiting value", ie a weak signal that does not cause the IF to hit the point where limiting occurs, or in other words a noisy signal
By G8HUL · #40035 ·
Re: Dummy Antenna and FM Alignment
AArnaud, let's continue this off-forum since it no longer involves a NanoVNA. My email address is at the end of this page: https://k6sti.neocities.org/splot Brian
By Brian Beezley · #40034 ·
Re: Dummy Antenna and FM Alignment
The instructions are not the clearest, I've included them in case although that may be off topic. L2 gets aligned at 98.2MHz @ 22.5kHz modulation but at an unknown level, I suppose you're right Brian
By AArnaud · #40033 ·
Re: Measurement correction for Zc Coax caracteristic Impedance
Hi, Ed, Maybe off the rails except that many folks here make measurements of transmission lines and maybe some of them will venture into low enough frequencies so that the high frequency
By Maynard Wright, P. E., W6PAP · #40032 ·
Re: Measurement correction for Zc Coax caracteristic Impedance
? ?nanoVNAers: I fear this most interesting discussion is heading off the nanoVNA rails. Maynard¡¯s offerings are extensions of Oliver Heaviside¡¯s evolution of the Telegrapher¡¯s Equation,
By AG6CX · #40031 ·
Re: Measurement correction for Zc Coax caracteristic Impedance
One reason for a varying inductance in a line is that the total inductance per unit length is due to the combination of the internal and external inductance of the involved conductors. At low
By Maynard Wright, P. E., W6PAP · #40030 ·
Re: Measurement correction for Zc Coax caracteristic Impedance
Yes: I've worked mostly with paired, balanced lines (telephone cable pairs) but the principle is the same. AIEE Transaction 59-778, "Transmission Characteristics of PIC Cable," General Cable Corp.,
By Maynard Wright, P. E., W6PAP · #40029 ·