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It also depends on the frequency range one plans to address. Somewhat "sloppy" or even homebrew standards may be quitr acceptable for HF work, but certainly not into the microwave region. Dave -

Hey Dave, a quick check on Amazon shows the two sets of N calibration standards at $50 and $20. Obviously not HP quality, but also not >1 grand!. No idea if these are any good but I would think they

Thanks, Jim!! I was going to post similar information......?? I'll bet an intelligent www search could find something affordable and "good enough" for the purpose. Dale: What is the purpose for

You mean an inexpensive kit?? Keysight sells them for about $3000. 85518A and 85519A If you only need up to 9 GHz, 85514A or 85515A are $1500, or the 85032E Economy kit to 6 GHz or $1100, etc.

Is there anyone selling just the type Cal set? I have need of a 2nd set. Both male and female desired if possibe. Tnx, Dale W4OP

Thanks Hugen, that explains my SD card problems with my H4. 32GB cards would not work but I just installed a16GB card (microSDHC UHS-I, SanDisk) which saves to the card just fine. Rudy N6LF

Hi Hugen, Thanks for your response. Is there a way to determine whether my microSD card supports SPI ? I will see if I can borrow an older card and test with it. I hope this solves my issue. Thanks

Hi Jacques, the NanoVNA SD card is connected to the SPI bus and only supports microSD cards in SPI mode and less than 32GB. Some high-speed SD cards may not support SPI mode.

Yes, that's probably about as good as you can do.? What you might be able to do is adjust the offset voltage on each AWG to get the "off" have higher attenuation, but it's probably millivolts of

Hi, I'm using a NanoVNA H4 (H/W version 4.2.1) that came with a card reader already built in. Current firmware is DiSlord's excellent V 1.1.00 I'm now trying to use the SD card (Lexar 633x microSDHC

hi Jim, yes. See the datasheet, there are 3 nulled @ 5 GHz, 6 and 7 GHz where it get less than -60dBm. I really do not understood how they adjust the I and Q voltage in order to reach it. I am not

Hi Austin. I've never tried on Linux, but it shouldn't be hard. I will try it out this evening and report back. I will also update the instructions. 73s, Bruce KC1FSZ

Interesting work. It excites me to know of the possibility. However, I use Linux. Have you ported it? This looks like a great solution.

Hi Colin. I'm very glad to hear it worked for you. Drop me a note if you've got any suggestions for how to make it better. 73s, Bruce KC1FSZ

Hi Bruce: Excellent work on this. I am a blind ham and have struggled mightily with the currently available apps for the NanoVna using a screen reader. There is some limited usability with use of the

The wiki page Home ( /g/nanovna-users/wiki/12336/159429 ) has been updated by Larry Rothman <nlroth@...>. *Reason:* Added How-To link to thread about Hams with visual

On 1/31/22 1:07 AM, Antonio Carvalho wrote: > hello Jim, > > Exactly. see attached my setup. > I kept my I and Q at 0 Volts and the better value reached in my Quadrature > modulator was -32 dBm. > I

Hi Austin: This project may be of interest: https://github.com/brucemack/nanovna-controller I worked on this in collaboration with Frank N1FMV. This project creates a simplified HTML interface for the

hello Jim, Exactly. see attached my setup. I kept my I and Q at 0 Volts and the better value reached in my Quadrature modulator was -32 dBm. I did as you told me. Put 0.1, 0.5 V ...... on a port. See

Hi everyone. Have any blind hams successfully used a nanoVNA? They sound like they might come in handy, since companies don't make talking antenna analyzers or Watt meters anymore. Can a computer