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Hi Thanks! I think I will change the firmware since "sounds" numbers are more important to me than the last 100 MHz. Bo

Hi The way I see the "marker points" is semi-automatic. The user will have to press e.g. the LPF button, if the DUT is a LPF. The S/W then looks from low to high frequency for the selected "marker

So it is already thin.? No help there... Mike WY6K "... somewhere in the distance, there's a tower and a light, broadcastin' the resistance, through the rain and through the night..."

How thick is your FR4? Thinner board will keep the RF more concentrated in the dielectric below the traces. Dave. -- Dr. David Kirkby, Kirkby Microwave Ltd, drkirkby@...

Oristo, thank you! Exactly what I need! Now, to find time to implement all the things I want to do .. oh, and fix all the bugs... ;-) -- Rune / 5Q5R

0,8 mm.

Hi Maurizio, good to hear that the antivirus cleared it - phew! I don't know if I can do anything to make that go easier, other than put fewer viruses in? ;-) I guess fewer than none is difficult. I

Does this help? "Here is the simplest way to save a widget as an image. This approach works on Qt 5:" ui->myWidget->grab().save("image.png");

Hi Bryan, great to hear that the software just runs, and I'm also happy that the calibration assistant worked out. It was really a last-minute addition, so I'm happy it works! ;-) The plot scaling for

FWIW, calibrating 50kHz to 100MHz with these 34cm SMA-to-BNC pigtails: https://www.ebay.com/itm/254218176301 .. and a generic BNC terminator and female coupler yields lower CH0 LOGMAG when

Hi Bo, now I've gotten to your long list of ideas! Thanks for providing them! Screenshot/image saving is definitely interesting! Currently, the graphs/plots are all painted directly on a Qt widget, so

Thanks Warren.? Mine has those shields.? I have heard that the shields increase the dynamic range above 300 MHz and especially above 600 MHz.? Is that not true? Mike WY6K

Bo,? HOw thick is that FR4 board?? Thinner material would improve the isolation, right? Mike WY6K

There is no such option. You can modify firmware but the logic for frequency boundaries is not easy, needs to deal with this. By the way, edy555 firmware uses different frequency segments boundaries.

Hi John, if you experience crashes, please try: - Running the program for a command prompt, which preserved the crash message, - Running using "-D logfile.txt" as a parameter, which saves debug data

qrp.ddc, I purchase cables of unknown quality at hamfests and the nanoVNA has paid for itself in helping me avoid selecting cables that physically looked fine, but from both cable ends looked like

did you tried original edy555 firmware? Firmware from hugen79 and from edy555 have different frequency modes. So they have different behavior at different frequency boundaries.

In my previous post, I was referring to coax from my hamshack to the antenna - not a piece of transmission line a foot or 2 long. Please remember that from a practical viewpoint, LOW resolution in a

Hi From a market volume point of view it might be an idea to divide the RF boards into: 1) Si5351A, as now. This is more than fine for the vast majority of radio amateurs 2) Si5351A + ADF4351, lower

on this list. that he has nothing to learn from a genuine ham of long and diverse experience. Not all of us are simply warmed over chicken banders. Some of us have ended up embarrassing engineers. On