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According to the Github page it is the latest "Official" release, Feb 24 2025 . I just d/l it last week. Don't know about older units. I have a Deepelec V3 and seems to be fine

Instead of reading where the plot intersects, read the numbers at the top of the screen which is where your cursor is placed. You have: -0.774 dB loss at 54.6 + j 35.2 ohms equivalent of 64 ohms for

Hi All i tryed to change the balun designe with the same FT140-43 but with 1X12 turns this time , I measure the charateristic impedance of the balun is around 142 Ohm ( see Smith shart focused on the

Hi Dave Thanks Pse take a look to the graphic curve , the losses difference is huge over all the band from 50Khz to 30Mhz , marker value not so important here . 73's Nizar

Please compare at the same frequency. Your 50-ohm (actually 52-ohm) measurement is at 27.7 MHz. Your 72-ohm measurement is at 14.2 MHz. Please repeat at the same frequency and get back with us. Dave -

Hi I am a little confused, my 1/1 balun done with FT140-43 2x10 turns with 1mm wire as illustrated by photo attached, i want to measure losses by S21 Logmag function after a good thru calibration,

Hi here my best adjustement to the balun around FT140_43, Zc = 62 Ohm , (SWR=1.25:1 with 78 ohm coaxial cable) . the impedance is centered to the Smith shart and focused there with a resistance trimer

Is nanovna saver version V0.7.3 the latest? Is it backward compatible to all (older) nanovna hardware/firmware and all the various forms of the nanovna implementations? Understand that some features

Hi It helps me to adjust gaps between 1/1 current balun wires to have a Zc = 48.5 Ohm (initially wires are colled together gives 39 Ohm characteristic impedance of twean lead of balun ) . amazing

Hi It will be very appréciated if we can save display smoothing setting to the C0 , C1... C6 calibration memory. If we can display batterie voltage with a very small police characters below batterie

Hi Graphic image option of H4+DiSlord firmware 1.2.40 done by the Nano_App 1.1.218 is a really amasing option, it make bigger the Nano VNA screen with larger PC screen and mouse option running

I don't plan on putting one up. I do not see it as the best antenna to use. People say they have worked a lot of stations with it, but others have said they worked people using a gutter or bedspring

The impedance of an EFHW is dependent on many factors such as surroundings, groung and wire gauge and changes at the higher harmonic frequencies. Has anyone actually measured the antenna? Mike N2MS

Hey Jon, Yes mate, despite the age, if aren't learning something new every day, then there's something wrong . Always great to step outside of the circle once in a while Jon. Have an awesome day. Pete

I have also learned a good bit from this discussion Pete. 73 Jon, VU2JO [email protected]> wrote:

Mike, you can use this program to measure your transformer without using a resistor. It lets you vary the effective resistance by typing instead of soldering. https://k6sti.neocities.org/splot Brian

Jon & Mike, Thanks very much with this. I have learnt so much over the past 24 Hours and still a long way to. Cheers Pete

The NanoVNA-H with firmware version 1.2.43 (Build Time Feb 19 2025) has more Meu buttons than what I see on the supplied NanoVNA Menu Structure Map. Where can I find the updated map? Most menu

I tested my unun by placing a 2400 ohm resistor in series with the S21 input. This loads the secondary with approximately 2450 ohms which is the typical source resistance for an EFHW -- Mike G8GYW

Here it is Ed: "The turns ratio shown is actually 2:15, implying a nominal impedance ratio of 1:56 (NOT 1:49), or a nominal load of 2813 ohms. Beside that, the measurement technique looks sound." This