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Op za 11 jun. 2022 om 08:32 schreef Victor Reijs via groups.io <pe1atn.victor.reijs@...>: By the way, NanoVNA Saver uses also these formulas to plot the S11 and S21 for the 2port

Hello Roger, Using Series though, the NanoVNA measures both a S11 and S21 (for that configuration, which I [of course] calibrated). The link I gave ( https://xdevs.com/doc/HP/pub/5988-0728EN.pdf ),

Victor, I am not sure how you are measuring the DUT using S11 reflection and S21 series methods. You have to measure them with the correct reference plane calibration and this usually requires two

Glad you solved it, and sorry I did not reply earlier . . . we were out for the evening . . . -- Sent from my Android device with K-9 Mail. Please excuse my brevity.

Ahoy, Belay my last.... I found my way and cleared out the incorrect firmware. It took much searching thru many messages plus wiggling the usb plug. But now I have the version git-20201013-32077fd

Hi Rich: Thanks for the correction. You are absolutely correct as presented, .016 for this leads one to the 35.917 dB answer And your cell was L4 not M4. Glad confusion removed on final version.

Hello Roger, I thought that the method I used now for the resistors was working. And it seems to work at least for these 4 resistors (330, 985, 5160 and 21800);-) But I now did a 1:1 Guanella choke as

Follow up - the new firmware I uploaded was the wrong one, and I cannot get to a dfu mode either by -QT, the screen menus or by toggling the left jog and switching on and off. I went thru all the menu

Thank you Igor and Dislord. I just acquired a new NanoVNA H4, after using my original NanoVNA H for the last several years. With all features of the H4 over the H model, it is like starting all over

Hi Tim, brevity did the trick, I was able to get back to life using the left jog and on-off switch. The SAA-2N showed up on the -QT software (on my MacBookPro) and got the prompt to load software.

I guess I need to express my gratitude for allowing me to ACCESS the forum, again. I am still looking for any text form of "menu" symbols AKA "menu dictionary". ( No, I do not desire to be "part of

Still OK Neil Colin MM5AGM

Wow, touchy, ta, ta. Mike C. PS I didn't know engines had ears!!

DFU mode does nothing with the screen . . . Perform the steps to enter it (DFU mode) on your unit, and see if it shows up on USB. -- Sent from my Android device with K-9 Mail. Please excuse my

Hi Tim, I would like to get to any mode, but the device does not respond to any input, button or tap. The screen is white and nothing gets a reaction. bob.c

Yes it is listed under Platform after you enter Config-Version. What I don't know if that is the actual chip on the board or what the developer of the firmware just entered as default text for that

Just out of curiosity, is the processor type listed on a display rather than opening up the unit and looking at the chip? [email protected]> wrote:

According to Hugen (manufacturer of -H4) the latest firmware can run on a STM32F302CCT6. /g/nanovna-users/message/24748 Comparison chart >>

Hello all of you, I was wondering if someone measured the T equivalent circuit of an antenna? So the antenna is seen as having three ports: two going to the two points of say a dipole and the third

Sigi, My cupboard yielded exactly 1 suitable box but, in the event, having a bigger format gets away from the "little and fiddly" form of the nano, as well as accommodating the nice R&S flex patch