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Re: Locked, then white screen on NanoVNA-H
Tried this and still just a white screen. I guess it's bricked. Thanks for all the responses. Perry
By Perry Westberry · #28229 ·
NanoVNA-H(4)
Dear, I have a problem with the NanoVNA-H(4) and NanoVNA-App I can connect it on com5 but it does not read the data and mention always a number of points error Does someone has a trick to solve this
By John M. Polard F5VLB · #28228 ·
Re: Which cable measuring method is more accurate - IYHO
Hi, out of curiosity I've made a measurement of my nanovna H4 stock RG316 cable (of length 163mm end to end, incl connectors). NanoVna App shows 158.4mm, while H4 (Measure->Cable) shows almost
By igor-m · #28227 ·
Re: spreadsheet for importing snp files, Excel 2010
Thank you for doing this for us Mike
By K6AMQ Mike · #28226 ·
Re: spreadsheet for importing snp files, Excel 2010
Not sure. I was using the spreadsheet to 1. Confirm that menu items were returning values I expected, so that I could update the manual with meaningful language 2. Explore data relationships. I
By Rich NE1EE · #28225 ·
Re: Nanovnasaver plots
One port S11 measurement on a NanoVNA-H4 gives good results up to several thousand ohms (see attached 3K ohm example). It is better than using the S21 serial method. The S21 serial method does not
By Roger Need · #28224 ·
Re: spreadsheet for importing snp files, Excel 2010
Rich, What is SWR:Linear? Roger
By Roger Need · #28223 ·
spreadsheet for importing snp files, Excel 2010
I updated this spreadsheet for the convenience of others by rearranging the columns and including instructions in the spreadsheet. ~R~ 72/73 de Rich NE1EE The Dusty Key On the banks of the Piscataqua
By Rich NE1EE · #28222 ·
Re: Nanovnasaver plots
Thanks, Victor! 73, Costin, YO8RCD ?n lun., 30 mai 2022 la 12:16, Victor Reijs <pe1atn.victor.reijs@...> a scris:
By Costin R · #28221 ·
Re: Question S21 measurement relay
Alright, thank you! Best Fabio
By Fabio · #28220 ·
Re: Nanovnasaver plots
For a choke we want to determine high im[edance values and the one port is not really good in that (low accuracy). See here for some background:
By Victor Reijs · #28219 ·
Re: NanoVNA Saver 0.4.0 MacOS #nanovna-saver
Solved : just change line thickness and point size before closing window
By alex · #28218 ·
NanoVNA Saver 0.4.0 MacOS #nanovna-saver
Hi all, I don't know if this has been posted before, but I'll give it a try. I use the software on my Mac and all seems to run. But when I go to 'Display Setup' and check 'Show lines' the software
By alex · #28217 ·
Re: Nanovnasaver plots
Thanks, just been reading the late G3TXQ articles. Very useful. He said a one port measurement is no good. Surely if I terminate the choke with a r ohm resistor , I can measure R + j X that way and
By F4WCV · #28216 ·
Re: Nanovnasaver plots
There are two methods to Convert S21 to Z. The series method is used for "high impedances" and the "shunt method" for low impedances. These are built into the latest firmware for H/H4 and in NanoVNA
By Roger Need · #28215 ·
nVNA-H4 v4.3_MS, firmware 1.1, User Manual 0100
I posted an updated version of this doc, which is the same content as the older doc, but because it contains more operational information, I renamed it to a user manual. I thought that I had sent a
By Rich NE1EE · #28214 ·
File Notifications #file-notice
The following files and folders have been deleted from the Files area of the [email protected] group. * /user manual and menu maps/nVNA-H4 v4.3_MS, firmware 1.1, Menu Items & Descriptions
By Group Notification <noreply@...> · #28213 ·
Re: Locked, then white screen on NanoVNA-H
Yes, disconnect all power for a while. The ultimate and first try to fix ANY and EVERY computer that I know of. Even my wife has learned that. Dave K8WPE David J. Wilcox¡¯s iPad
By David Wilcox K8WPE · #28212 ·
Re: Locked, then white screen on NanoVNA-H
Thanks, Roger. I'll give that a try. Perry [email protected]> wrote:
By Perry Westberry · #28211 ·
Re: Nanovnasaver plots
You might find this useful...I did it with real data from my -H4 and my EF 40 m wire. You can make a copy of this spreadsheet so that you have a backup. Then open it, and start a new spreadsheet.
By Rich NE1EE · #28210 ·