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On 8/15/22 2:18 AM, David J Taylor via groups.io wrote: > On 15/08/2022 09:22, F1AMM wrote: >> Concerning the nanoVNA-F which works very well alone and connected with nanaovna-saver under Win7, here

Hello! I still use a twelve-centimeter slide rule (or a circular one) in my everyday life. Most often when I need to decide which goods is cheaper in a grossery shop - by bringing the compared goods

Fran?ois, Being "open source" can allow others to provide updates which enhance the functionality of the hardware, and perhaps fix bugs left by the manufacturer. On the other hand, there seem to be

Concerning the nanoVNA-F which works very well alone and connected with nanaovna-saver under Win7, here is what Roger Need answered me /g/nanovna-users/message/29253 I don't know if

On 14/08/2022 21:24, Ken Bozarth wrote: > I recently purchased an SV4401A from Aliexpress for $299. As a lab instrument, it is very nice, a giant step up from the F-V2. With up to 1001 data points,

For a parallel resonant circuit there are three different definition of resonance (Nelson M. Cooke, "Mathematics for Electricians and Radiomen," McGraw-Hill, 1942, page 478): 1. The frequency at which

Sorry for the late reply but I've been away. There is only one definition of resonance - that where the reactive component of the impedance is zero. That is true for ANY AC circuit - including

I recently purchased an SV4401A from Aliexpress for $299. As a lab instrument, it is very nice, a giant step up from the F-V2. With up to 1001 data points, the sweep resolution is great. The N

When I was in high school, one of my buddies ordered the brand new Texas Instruments SR-50 scientific calculator. $150 back in 1974. I saw a calculator with the same capabilities, plus the ability to

My first scientific calculator, a CompuCorp 324G (which still works fine) was not an RPN device. When I bought my first RPN calculator, an HP-21, I was doing some assembly programming, and RPN seemed

I do not have a specific reference on this topic. I wrote something on this subject a while ago and have attached it to this post. Whenever the reactance (X) becomes 0 the S11 phase angle will be 0

Hi Folks, Every time you change any information on an existing Subject line, it becomes a new topic. (Even adding a space between words.) If you want to address the contents of an existing thread, you

Which thread is that? -- VY 73, Wes WB7BR

I always felt a little smug using RPN on the HP’s (mine was the HP 41cv) - like I was inputting data and commands the way the processor was seeing it. John, wa3jrs

You and me both Stan, as soon as programmable calculators came out I got my first HP calculator, I still have the last one I bought, an HP48, and I now have an HP41 emulator on my smart phone, one of

Hi, Wich version is safe to update this item to 1500 MHz? I know above 1100 MHz the measure is shit , but hey better something than nothing Attachment of my nanovna here : (it's from AliExpress)

Wow, this thread needs to be turned into a PDF. There is a lot of useful information on the offer. Thank you everyone!

Correct. The Smith chart provides a very clear visualization of impedance transformations which are rotations in Argand space. Well worth learning to use it.

I reworked the NanoVNA-H4 Rev4.3 schematic to remove R44 from the NanoVNA-H4 Rev4.3. This resistor may damage U2 and the battery if the NanoVNA-H4 is not used for a long time and the battery is low. A

Roger- I’m looking at an older post concerning S phase and Impedance phase, where you plot the graph and note that they are zero at an identical frequency, but different otherwise. I have been