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Yes. If we are trying to measure the so called TRUE INSERTION loss... |S21|. And the vna has a reasonable dynamic range, then we could build an appropriate MINIMUM LOSS PAD. It would provide a match

Hello again Alan, Thanks for the detailed answer. I had to google for the design, I have found this website: https://www.electronics-tutorials.ws/attenuators/passive-attenuator.html I have made a

The loss relationship should be written as 1/(1-|s11|^2)... Need to check, is this a valid form for a passive transformer network?

Here is some info on the MFJ cal loads suggested by W7ZQ. Says rated to 1 GHz. - really? Roger

Check the calibration load of 50 ohms.

Seems like I got errors very much like that when I installed on Mint 19.3 Cinnamon. However, I am still able to start and run it by navigating in terminal to the nanovna-saver folder and entering

Hi Luis. Your query stated BALUN. However, if an UNUN, then a simple R pad, either PI or T with a Z value that matches the UNUN transform ratio is required. The method in either case requires a

My VNA doesn't seem to be working but occasionally, I can get a reading on it. Thinking that it might be me, is there a way to reset the nanoVNA back to it's delivered format, in case I have done

Very nice. The stylus holder is a great idea. Thanks for sharing. ---? Ciao baby, catch you on the flip side?? 73 de W3AB/GEO ??? http://www.w3ab.org You can say "over", you can say "out", you

I have a nanoVNA model H, and I've been several designs that were quite clever. I am looking for an enclosure that would fit the nanoVNA model H with the addition of chassis mount PL-239's to SMA's in

Luis, One method: Measure the return loss of the balun with the balun shorted. The return loss should be about twice the balun loss. This is similar to measuring the loss of a shorted or open piece of

There is another thing to be careful of, if using some of the older professional VNAs, like the 8753. The VNA transmits a signal continuously during the sweep, changing the frequency during the sweep.

Get two of them back to back but at those impedance transformation ratios you are looking at ~20dB of attenuation per pad so that could be a problem.

Hi Larry I recommend the BNC 4 part kit from SDR Kits which covers both a male and female calibration kit. The 3 part is male only. You can only find the 4 part kit in the Web shop section. (I have

If that were true, nobody would ever use a VNA above DC, or some frequency very close to it. Like others here, I also have taken measurements at the end of a long coax, with good results.

I've been able to install the NanoVNA-Saver on Ubuntu 20.04 using the attached helper document. I regret to say that I forgot where I found it ... memory loss is the first sign of senility! The nice

Hi Alan Thanks for the reply. You mean like a attenuator circuit made with resistors? I am not sure if I understood. If the unun ratio is 49:1 means that the R pad should receive on the input 2450R

Successful solutions should be found here in the forum: call the SEARCH button and then type nanovnasaver ubuntu or similar and there are several descriptions. There are several descriptions. 73,

Very nice....I think I'll follow your lead as the cleanest enclosure solution, Craig. I like the stylus attach too. 73 Kees K5BCQ

Dan, I didn't get it running either so I am watching this thread. I think I got the nano-saver running in a virtual box under Ubuntu using the instructions for Linux Mint 64 bit which is found in the