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nanoVNA on Galaxy S5 neo, Android 6.0.1, otg cable, via browser chrome, @ https://cho45.stfuawsc.com/NanoVNA/ everything works perfectly without other drivers / apps etc -- *73, Lucio I0LYL Rome,

I insert a small USB hub: https://www.amazon.com/gp/product/B07SZTHPPR so not direct USB-C to USB-C. That hub is not ideal, because it does not recharge the Android host while it runs NanoVNA WebApp

I have a VNA that I am working to get sold in kit/assembled form that can measure 10000+ ohms in the HF in reflection, and can measure 1000+ ohms up to 600 MHz. I will admit, however, measuring high

For example, if you're transmitting at 3650 kHz and your transmitter has 90W emission at 3650 and 10W at 7300 kHz, your VSWR meter will show you average between 90W at 3650 kHz and 10W at 7300 kHz.

if your transmitter has high distortions and out-of-band emission, you will get different VSWR with VSWR meter. Because VSWR meter shows VSWR for all frequencies in the signal. While NanoVNA shows

the same, all have 128 kB flash

Hi Herb My test chamber is just made of parts from the junk box. What you can see is the reverse side of the lid. It has a milled groove along the circumference with same diameter as the inner

See also W0QE youtube channel - https://www.youtube.com/channel/UCKSyLSu4fm_1RHoO3Jvk4YQ/videos - videos #77, #78, #90 he builds VNA cal sets on all sorts of connectors and compares them with

With so many vendors selling NanoVNA - does any of them specify the flash size - hence actual processor used ? Or are they all the same ?

Daniel, Please reference this document,

How are the calibration standards that come with the NanoVNA made? I tried to make some out of SMA cable end connectors and it was a miserable failure. It is extremely hard to crimp/solder anything on

The band that the primary problem is 40 meters; my xmtr is running on a conventional power supply, not battery powered.

Yes, see message #401 from RF And Microwave Mag on this topic. Alan

--------------------------------------------------------------------------------------------------- Thanks for the suggestion Larry, The enclosure can be constructed in several ways and to me is the

Oristo, I ordered a NanoVNA-H which arrived today. In addition to now having a case, it has the battery display diode already installed and also has firmware 0.2.3.2 installed for upgrading without

Has any thought been given to adding some marker math to both the NanoVNA firmware and also to VNA Saver? For example on a log mag plot it would really be handy to display the frequency and the level

Herb,If you know a plumber** and can get a short length of 2 or 3 in Dia copper pipe, stick some copper end-caps on it and you're good to go after mounting the hardware. It's not as flimsy as an

Kurt Poulsen wrote: "Just for the fun of it I measured a blue junkbox core as in my closed chamber as seen on the picture. "

Hi Andy, if you are able to do a little Math, you can use an S21 through measurement to measure an impedance. Only issue: there is in the moment no software available for the nanovna to do the

It finally occurred to me that careful shopping e.g. on eBay yields a fairly recent Android device with bad ESN cheaply with less trouble than trying to update Android an older device