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Yes the S11 bridge method starts to get quite inaccurate after the impedance gets higher than a few hundred ohms. Fortunately the NanoVNA can do S21 measurements and we can determine complex impedance

I have tested the 1:49 transformer loss and found it to be 1 to 1.5 dB depending on the band. I checked this loss several ways with good agreement using the Nanovna. I also measured the feed point

What are the exact steps to adjust the display brightness? Mine comes up with a keypad and 1 800 I think it was. I tried something and it went dim and I managed to get it back where it was. I would

To test for insertion loss (S21) you need two identical back to back. You may want to observe phase with frequency as well. In those cases you ahv eto allow for two devices so the insertion loss is

Thanks Herb! On the larger screen being a lot slower, it should only be slower based on the number of pixels compared between models. I had to do a lot of rewriting of library lcd routines from

Dislord, the talented Russian coder, who collaborated with edy555 on his recent 0.7.0 firmware release has uploaded a beta 0.8 firmware with the following Google directly translated Russian comments:

On Sat, Mar 14, 2020 at 10:12 AM, Jim Potter wrote: ...mine was the smaller screen version, but the AURSINC version was complete with battery and shielding. I find it convenient to use it with my

Praba Karan, Depends what you are trying to check and over what frequency range? Are you just looking to measure VSWR vs frequency or other things maximum power handling capability, efficiency

Thanks, mine was the smaller screen version, but the AURSINC version was complete with battery and shielding. I find it convenient to use it with my laptop, but I haven't taken it into the field.

On Sat, Mar 14, 2020 at 09:30 AM, Mark Schoonover wrote: Another approach is to put a 2.5K resistor across the output. ========================================================= That was pretty much

Another approach is to put a 2.5K resistor across the output. 73! Mark KA6WKE Latest Video: https://ka6wke.net/gmail Website: https://www.ka6wke.net wrote:

Just double-checked, mine was the 4" H-4 from seller AURSINC on Amazon. It was the first thing in my hands after my coffee!

Likely the Dave - W?LEVbest way is to connect two of them back-to-back. Dave - W?LEV

On Sat, Mar 14, 2020 at 09:05 AM, Jim Potter wrote: Robert, Which one did you get? I made a purchase several months ago of the one sold by AURSINC. ================================================

Hi, i tried today the latest satsagen software version with my GPSO modified adalm pluto and I always get a "xo_correction return error Unknown error". I run the adalm sucessfully with 25 Mhz...not

Robert, Which one did you get? I made a purchase several months ago of the one sold by AURSINC. Thanks, Jim

Hi, i tried today the latest satsagen software version with my GPSO modified adalm pluto and I always get a "xo_correction return error Unknown error". I run the adalm sucessfully with 25 Mhz...not

I received mine from Amazon a couple of days ago and love it! The only thing that bugged me a little was the tiny artifacts from the marker. I got brave and upgraded the firmware to the February

What is the right way to check 1:49 UnUn with nanovna?

I saw a YouTube on how a guy was using a HackRF one as a tracking generator with the RSP2 with the new RSP_SAS software release.? But, when I go to the tracking generator options with my RSP2, there