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Re: Nano VNA Interface to a Mac
You can connect the nanoVNA to the mac using the latest version of SimSmith. See https://www.youtube.com/watch?v=-lFvQg9GKR4&list=PLUl8S204xIezUOWbThMDWEdkK7h4Ywei7 for an overview Intro toSimSmith is
By ward harriman <ward.harriman@...> · #23905 ·
Re: calibration question #calibration
Syd, Yes you should calibrate at the end of the cable, not the VNA connectors. solation iswhen a load is attached to both inputs at the same time o r if you have only one load, just to ch1. Only the
By Gary W9TD · #23904 ·
calibration question #calibration
When calibrating the NanoVNA, one plugs in the open, short, & dummy load (O, S, L) directly into the NanoVNA; hence, the calibration plane is at the unit itself. Since I'm using connector cables to
By Syd <nhuq1@...> · #23903 ·
Re: danger measuring antenna
Blowing dust, snow, or rain, are even more of a charging hazard than the field from a passing thunderstorm.? Continuous charging. It charges until something breaks down, so you get a buzz or
By Jim Lux · #23902 ·
RF DEMO kit #charts
Fooling around with this kit the other day I noticed 2 things. The smith chart, when calibrated from 1M - 900M, gave a not so smooth graph for the various smith charts. How do I fix this resolution
By Syd <nhuq1@...> · #23901 ·
Re: danger measuring antenna
Static will build up on the antenna, not just the coax. Or even the stuff sitting on the bench.? The ESD sensitivity varies substantially among the various small VNAs. Some have resistor bridges/pads
By Jim Lux · #23900 ·
Re: danger measuring antenna
When connecting any length of coax to any sensitive measurement instrument, I ALWAYS first grab the end of the coax and effectively short the end with a finger or hand. If there has been a recent
By W0LEV · #23899 ·
danger measuring antenna
I saw a video about the dangers of using the nanoVNA by connecting to the antenna coax: static buildup on the coax. So I guess one way around this is to measure right at the antenna. The nano is
By Syd <nhuq1@...> · #23898 ·
Re: Nano VNA Interface to a Mac
Andy - I just updated my Mac configuration to interface with both my NanoVNA/NanoVANH4 and old miniVNA Tiny. Once you've installed Python you can either use "Homebrew" or MacPorts to load the app. I
By Dino Papas · #23897 ·
Re: Use of Outer Conductor on NanoVNA-H4
Hi All, Yes, let us all practice respect and tolerance. We come from many backgrounds and levels, and what is great about this group is that we can all learn from each other, and help each other. Like
By Ray · #23896 ·
Re: Use of Outer Conductor on NanoVNA-H4
Andy, you wrote: ¡® Doesn¡¯t that phrase ¡°1 port device¡± suggest a single input? ¡® A port has two terminals (signal and reference). If you are attempting to determine the inductance of a
By Ray Anderson · #23895 ·
Re: Use of Outer Conductor on NanoVNA-H4
This is a classic question on "wire" antennas (think a whip on an HT - the shield on the coax connector goes nowhere).? "the other wire" is there, it's just not at the connector. It's in the stray
By Jim Lux · #23894 ·
Re: Use of Outer Conductor on NanoVNA-H4
Sure, it works. the "shield" connection is via the PWB.? You *might* see a diffe
By Jim Lux · #23893 ·
Re: Use of Outer Conductor on NanoVNA-H4
Andy, You are doing it right as the outer conductor is connected through the nanoVNA. The way I do it though is to mount two SMA jacks on a piece of single-sided PCB and have two short wires with
By Gary W9TD · #23892 ·
Re: Use of Outer Conductor on NanoVNA-H4
Over what frequency and targeted value of inductance are you measuring? If you just want the inductance, it would be appropriate to connect the inductor across the source port, Channel 0, only. One
By W0LEV · #23891 ·
Re: Use of Outer Conductor on NanoVNA-H4
Here is a quote from P. 14 of the Absolute Beginner¡¯s Guide to NanoVNA found at your site: "When measuring one port devices, such as an antenna or individual components, the VNA transmits a signal
By Andrew Kurtz <adkurtz@...> · #23890 ·
Re: Use of Outer Conductor on NanoVNA-H4
OK, I will ignore the rectum who likes to insult and bluster without adding an iota of value to the conversation. I have attached a single alligator clip to the pin of CH0 and to one end of an
By Andrew Kurtz <adkurtz@...> · #23889 ·
Re: Download NanaoVNA Labview
From that link to Diligent link in post #8119: "LabVIEW Home Edition has now been replaced by the free LabVIEW Community Edition from National Instruments! Learn more about the Community Edition at
By Ted KX4OM · #23888 ·
Re: Use of Outer Conductor on NanoVNA-H4
Simple circuit theory taught in HS physics, and even some HS algebra classes, teach this concept!! This is even hands-on demonstrated to grade schoolers in the Fort Collins, Colorado Museum of Science
By W0LEV · #23887 ·
Re: Use of Outer Conductor on NanoVNA-H4
Andy, please forgive me suggesting that the below is a truly bizarre interpretation. For all practical purposes anything connected to an SMA connector implicitly requires two connections: a) a coaxial
By G8DQX list · #23886 ·