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the problen with visa-ebay-paypal is with ebay-paypal, i can not use any of my birthday visa gift cards on ebay or paypal, visa said - go to a store with an id and use, i have used on the net for

Hello All, I have attached a pic of the NanoVNA Saver Display Charts options. Is there a way to select those 5 options in NanoVNA-APP? |S21| S21 |Z| shunt S21 |Z| series S21 R+jX shunt S21 R+jX series

No, none of my computers and other devices has been compromised. I will make no further comments on this pointless exchange because it has veered way off topic for the reflector plus you are dead set

A trans publication on /g/eznec/message/397 -- Fran?ois

A third way that avoids rules of thumb uses an iterative procedure with automatic optimizers to adjust everything for maximum performance: http://ham-radio.com/k6sti/wbc.htm Brian

A trap is simply a resonant circuit. You can measure it like any resonant circuit. But since traps are build to handle significant power, they are usually somewhat large, which makes them more

I think this is a good demo: https://youtu.be/jpt51hDA5DQ?si=g5BsOyOOrL8Ad0UI Ralph’s channel is very informative. Alex

Hello I do it with my NanoVNA but connected to the PC on nanovan-saver. I have a 1 m coxial extension cable (RG223 U) and I calibrate at the end of this cable. I place a small 3 turns coil on a ? 12

I wrap a few turns around the trap. Scan the RL abd look for a dip like I used to with a GDO in the old days. I still use my GSO which I fund easier as I get an audio tone which dips as I tune across

hi, SV4401A is a product of SYSJOINT, please visit https://www.sysjoint.com/en/content/?145.html for more details

hi, Is the coaxial trap a two-port device? If so, connect the VNA ports to the trap ports and observe the logmag trace, just like testing a filter.

I feed the RFfrom a signal generator through a resistor, then read the voltage across the trap as it is tuned. The resistor value depends on your test equipment. If you have a 50 ohm source, start

Hello all. Is there any documentation someone can point me to that details how to test coaxial traps (I am building ones for 40m & 80m) using a NanoVNA?

No mention of who builds it, who does the firmware, software that it is compatible with ...

Hi I don't know, I. Got my one from banggood and it arrived in the UK in 10 days, And a great price, Dave

YZTERA SV4401a 7 inch Touch LCD 50khz 4.4ghz Vector Network Analyzer Found on Amazon.

I was able to ship a completed Norcal 40a board complete with potentiometers and connectors to Turkey for $11.40 cad using Canada Post surface mail. The package weighed in at 225 grams. Totally

My experience with having small orders shipped from the US to Chile by mail, since about 1980 until nowadays, is like this: In the beginning, there was airmail and surface mail. Airmail arrived

You may want to check the cable-to-plug interface of the supplied coax cables. On mine the ground sleves are not soldered or crimped but just hold in place by the shrink tubing. Depending on how I

Hello Indeed the curve you show (nanovna-h4_S21zoom_in.png) is perfect. I have never managed to do better than what I offered you. I don't know the cause. My box is a nanoVNA-F as attached. It has an