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The DMR-CLEAR_MEMORY_DFU.dfu file was corrupt... I have redone the download. It would be better if there was a checksum txt-file ...

Hi Norbert, I haven't had time to look at the data yet, as I'm away for an event part of this weekend, but I just wanted to thank you already for the in-depth bug report :-) I will look at it when I

Hi all, maybe someone likes to know how I did the SFZ450 filter measurements. Attached is a picture of the test adapter that can be calibrated with tiny SOL. 73, Norbert, DG1KPN

Its only purpose is to erase existing firmware in a device. A nanoVNA with that firmware installed can >>ONLY<< install firmware. I downloaded and verified DMR-CLEAR_MEMORY_DFU.dfu that is linked in

Just my humble opinion, but I think the group needs to start using hashtags. There is a huge amount of great information already in the group posts, wiki and files, but if it can't be easily

Hi Rune, I did some more testing on the marker issue. I am using a cal-file with 804 points. The CF=450kHz@10kHz span. If I select one segment it works. Selecting two segments ist doesn't. Obviously

That is a tiny font build (not aa). My smartphone cannot focus well enough for legible text with it.

I would like to try too ... Thank You and all the best ... Vlatko

Is there a previous "stable" version of type "800_aa" ("without bugs")? I am glad that you will continue with the modification of the 800_AA version. Thank's for your job. Why can't I use

Hi Bryan, I was able to duplicate your measurement, also with a 68 pF capacitor. On this screenshot, it's easy to see the effects of frequency on this capacitor, and what you should watch out for.

I don't know the exact numbers but the cost target is certainly not 100 USD, especially if the target retail price is under $60 ;) To get some idea the LCD costs on the order of $4, and the MCU $1.5.

Hello Re LCD size. What if e.g. a RPi4 is used as the digital board? I understand that the component cost target is 100 USD. A single RPi is 35 USD so in volume it is probably cheaper. The ADC would

Hi During alignment or design iterations of a filter seeing the 1 dB, 3 dB, 6 dB and "many" dB points are quite handy. Bo

1) I installed the NanoVNA-H__800_ch_20191003 version and now it no longer crashes (after the screen calibration, with or without saving). With 4 tracks the fonts are now very small ... this is a

AA version font requires a larger flash, resulting in saving the settings of the flash address overlaps with the program flash and I will modify the aa version later.

I confirm, it also crashes with the "aa" version of 03 October ... 1) press CONFIG 2) I press TOUCH CAL 3) eseguo calibrazione 4) restart 5) blocked initial screen (with info...frozen boot ..) Now I

Rune, Thanks, let us know if you get any additional info. Do you know how things are progressing between nanoVNA-saver and the NanoVNA-F? The command set doesn't seem to be as homogeneous as the

Mike, I agree on all points. I come from a test and measurement background, so -3 dB was always drummed into me with regards to equipment purchasing and test standards. I was only fore warning Rune

---------------------------------------------------------------------------------- The 10khz-1.5GHz is not an official build but was done by one of our members at the request of another member. The

I see anomalies in the plots if using more than a value of '1' in the "Segments" cell. See attached image: this is a 320 MHz Low Pass Filter and the protrusion around 500 MHz on the gain plot is one