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From what I understand you are resetting the cal in the NanoVNA before connecting to NanoVNA Saver. When calibrating with the Calibration Assistant in the PC program NanoVNA Saver you should already

Some preliminary results. Connected two NanoVNAs using Ts (so the impedance at the ports presented to the external device is ~25 ohms). See setup2.jpg - You can see the interference when one nanovna

After having done a 2-port BNC calibration from 100 kHz to 2 MHz with the Nano-H4 (version 0.5.0) then the CH1 LOG MAG =0.01...0.02 dB of the Cal Thru. Perfect! When I connect the H4 to the PC and use

Thank you but I fear, in the UK, finding a TV traditional repair shop will be harder than finding a switch ;-) 73 Brian

Thank you. I've EMailed a friend in the US and asked him to buy a couple and pop them in the post- I will send the money via paypal, that will reduce the shipping! Paying DHL etc $16 seems crazy ;-)

Here is an overseas source for a direct replacement. Cost is less than a dollar and 2 week shipping is reasonable... FedEx or DHL if you need it real quick but costs a lot more.

Many of the motherboards of the televisions made by Vestel have such a joystick. Definitely find one at TV repair shops.

Here you go: https://www.ebay.com/itm/121096249091 So cheap I bought an extra as a spare. 73 -Jim NU0C "Brian Reay via groups.io" <g8osn@...> wrote:

I’m trying to repair a damaged NanoVNA for a family member. The joggle switch was broken off. Initially, I hoped it would be possible to reuse it but there the damage to the switch is worse than I

I have ordered two batches of boards from JLCPCB for the QEX September/October 2021 “Miniature SMA Step Attenuator” pp 9-21 by Tom Alldred VA7TA. There is a quantity of excess PCBs available. I do

On 9/27/21 12:58 PM, Jim Lux wrote: > I'm trying to control a second nanovna (identified as HW V3.5. FW version 1.0.45) with nanovna.py and I'm getting an error > > > > jimlux$ ./nanovna.py? --start

I'm trying to control a second nanovna (identified as HW V3.5. FW version 1.0.45) with nanovna.py and I'm getting an error jimlux$ ./nanovna.py? --start 1000000 --stop 2000000 --points 201 -o test9

NanoVNA have L/C Match function (Marker->Measure->L/C Math in last firmware) This function calculate how compensate measured impedance to 50 Om

Albert, My take... When one talks of distributed circuits like a coax cable or waveguides, the space (and time) origin to solve the Maxwell equations must be set: in the case of guided propagation

You could define it as a POINT on the Smith Chart (the impedance coordinates or the mag and angle of the reflection coef at that point).

Hi Albert, Just so you know your question posted although you didn't ask who does not use the NanoVNA with waveguides. I have no need of waveguides at the frequencies where I live. 73, Bill KU8H bark

OK, I buy this. So another question, how many of you use the NanoVNA with waveguides? de Albert KK7XO

It's a two-dimensional boundary separating two three-dimensional regions, hence "plane". Phil M1GWZ

There are actually two charts as you can see overlaid, usually in two colors to assist reading. The chart on your vna is the Z plane chart. After rotating it 180 degrees it becomes an admittance

In the case of waveguide, where scattering parameters and such were originally used, there is a "plane", cutting across the waveguide.? One hopes, of course, that you're using waveguide that supports