开云体育

Hi Lapo My +1 to display as R +/-Jx. Even will be ideal to display as line graphics: SWR, R and JX ! As some antenna analyzers done it, Rigexpert etc... 73, Serge

The link has been corrected.

Try to add c38 on my schematic.

Hugen, Can you please tell me what you changed so I can fix my white unit? I assume it is an issue with the charger/inverter circuit design? Thanks, Larry

On Tue, Jul 30, 2019 at 01:36 AM, Lapo Pieri wrote: > > Hi, > 02:32 Mon 29 Jul 19 , hugen@... wrote: > > You may have pressed the touch screen while adc is initializing. > > No, I don't I'm

Such a change will cause the adc to fail to calibrate properly, although this will not cause major errors, but it is not recommended. Do not compile the 1300Mhz version, there will be a big error

Larry Rothman, Once again, with the original firmware there are no problems with the inclusion. I corrected the code, now nothing freezes. void adc_init(void) { rccEnableADC1(FALSE); ADC->CCR = 0;

I just had a look at hugen's schematic. He runs a battery charger/inverter chip off of the battery to get +5v. He then uses a 3.2v LDO regulator (XC6206P322MR) chip to run most of the electronics. I'm

One thing you might want to try is to compile a DFU for hugen's 300MHz firmware, then use any free ARM disassembler and compare your compile to Hugen's. You may be able to zero-in on the problem area.

The hang occurs both on battery power and on port USB. With native, stock firmware never freezes. With native firmware does not hang. With the firmware, which is compiled from source Hugen, freezes.

My white Gecko clone hangs at the splash screen sometimes as well when running off the battery but never hangs when powered by the USB port. Does yours hang when powered by USB or battery? These

Everything is smooth, my analyzer freezes on the splash screen. The code below does not fix this. Sometimes it works, sometimes every other time. I have an original firmware dump STM32, merged when I

Thank you Hugen! release 1.03 works very good for me

Frank, Why don't you try something like what I drew for message /g/nanovna-users/message/608 ? Since I don't own a 3D printer (yet), I would assume my design could be printed on it's

I am guessing that the N9914 is about 25 dB more expensive! I have been unlikely with FieldFoxs. Bought an N9923A reconditioned from Agilent. I found endless firmware bugs, then it had a hardware

Yes, my error. Oh well, only a hand calculator away!

Hello Joe and nice work on your LabVIEW interface to the nanoVNA. I'm wondering if you plan on sharing this with the group? I would be very interested in learning how you did what you did. I have been

My original reason to design a case for this little thing, is the open sides are a place for something to get in and short the beast out. I never liked "test equipment" to get dirt or particles to get

I get it Frank. Boxing it up does have some downside. I think it depends on what you want to do with it, how much use/abuse it will receive, and whether or not your hands are more functional than

Hi Alan, I just want to point out that the polynomial + delay + impedance method for characterising standards is itself just an approximation. In this day and age (of cheap storage) it is simpler to