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FWIW, A good deal of information concerning Heaviside's contributions to EM field theory (including his vector calculus-based formulation of Maxwell's equations as compared to Maxwell's original

They were successful: https://aetherczar.com/a-heaviside-update-memorial-project-to-republish-heaviside-biography/

Hi Nizar, I am surprised you are having touchscreen troubles with your Deepelec NanoVNA-F. Try clearing your calibration data and do another touch screen calibration. Leon changed the touchscreen cal

The only other idea I have is to remove, clean, and re-seat the display cable. It has VDD pins next to gnd pins - maybe there is a short, or some FOD. [email protected]> wrote:

Links I have that still work are: https://aetherczar.com/help-restore-the-heaviside-memorial/ & https://blogs.ncl.ac.uk/alexyakovlev/2014/07/21/heaviside-memorial-project/ . But they lead nowhere. The

In 2014 on a lark, I contributed 10 Pounds to an effort of those in Newcastle seeking to refurbish Heaviside's grave site. They sent a picture. I will grab it of my e-Mail.

It turns out that my board is version 4.2.1, the scrematic is https://github.com/hugen79/NanoVNA-H/blob/F303_ChibiOS_18/doc/Schematic_NanoVNA-H4_2_1.pdf The regulator is LDO1. I managed to lift pin 5.

Hi Bob I have Deeplec Nano-VNA F 4.3'' V2.3 V3.1 FW 1.0.5 but very disappointed by touchscreen on the menu even with good calibration as shown on youtube video, very erratic and bugy , otherwise all

Hello Nizar, Before you buy another NanoVNA, what brand of NanoVNA-F do you have Sysjoint or Deepelec? Have you upgraded to the latest firmware? If it is a Sysjoint, they no longer support the

Hi Stan Thank you very much for all this nice infos about nano vna H4 v3.1. I will select a supplyer from amazon.de to have some advices from you and others .. Thanks again 73's Nizar

Hi Jim, As Roger points out below, you can use a laptop or tablet to connect to your NanoVNA. Also, if you have the 3" -H model, you could buy a newer -H4. I believe the latest version uses an 4" IPS

Hi Victor , many thanks for the link. I have the pdf version of the HP-Agilent seminar "Vector Network Analyzer Basics" , by David Ballo and more recent version , but the course with video and verbal

If you are going to do this, don't do it with single frequencies, do a full sweep. Anyway, multiple people did this before and posted on this same list. <quineatal@...> wrote:

Another experiment. What difference does the NanoVNA CALIBRATE>POWER setting produce in the VNA’s signal level? The Setup: VNA S11 calibrated to start/stop of 50 MHz–90 MHz, 401 sweep points.

https://www.keysight.com/us/en/learn/course.vector-network-analyzer-basics.html

I have a similar item and have been pleasantly surprised at how closely its readings track with my calibrated 5-1/2 digit DMM. I use it a lot when I can't justify dragging out my 400W electronic load.

I recently purchased one of the little XY-FZ35 5A adjustable electronic load modules to test some battery banks. They are ideal for testing small batteries.

NanoVNA-H4 has a reliable touch screen. I have never had a problem with it. And no, there are no common 'bugs' not resolved. It is a very nice device, with lots of features.

It could be U11, or it could be something dragging down the output of U11 (some other failing component presenting a too-high load). If you can manage it, I would unsolder and lift the output leg of