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Re: First PCB pictures of the V2
This is very interesting, but I hope it is possible to buy from Europe. What kind of calibration standards are good enough. It will be interesting to see how bad some very low cost 2.4G WLAN antennas
By Leif M · #10160 ·
Re: First PCB pictures of the V2
Hi, Do please put in a suggestion of accepting Paypal (even if they have to charge us extra). In Europe, some banks are not happy with the buyer passing card details to countries where they are not
By Brian Ray <brianray1942@...> · #10159 ·
Re: Nano VNa H4 saving settings
On Fri, Jan 24, 2020 at 09:59 PM, <tonyg1hmo@...> wrote: "¡­ can anyone tell me is it possible to save a configuration? ¡­ ======================================================= Tony, Refer
By hwalker · #10158 ·
Nano VNa H4 saving settings
Hi, I have just purchased a Nanovna H4 from Hugen's Alibaba store. Very impressed so far with it, but can anyone tell me is it possible to save a configuration? For example, when I switch it on, it
By Tony G1HMO · #10157 ·
Re: First PCB pictures of the V2
nanovna-saver support is working, just waiting on a pull request: https://github.com/mihtjel/nanovna-saver/pull/137 The currently available hardware is all 2.8''. The 4'' display version will have to
By OwO · #10156 ·
Re: First PCB pictures of the V2
On Fri, Jan 24, 2020 at 08:10 PM, Gabriel Tenma White wrote: " Ok it looks like I need to do more work on the cal kit parameters. Previously the software only took S parameter files for cal kit
By hwalker · #10155 ·
Re: NanoVNA-H4 firmware ported to latest ChibiOS #nanovna-h4 #firmware #hack #hacking
On Fri, Jan 24, 2020 at 07:24 PM, Ken Liao, AA6KL wrote: " ..Thank you for helping me test out the firmware. I was using Ubuntu and didn't try it out at Windows..."
By hwalker · #10154 ·
Re: First PCB pictures of the V2
Ok it looks like I need to do more work on the cal kit parameters. Previously the software only took S parameter files for cal kit definitions, and I've only added a "fine tune" UI which does length
By OwO · #10153 ·
Re: NanoVNA-H4 firmware ported to latest Chi
Ken,I think you meant to say in the last paragraph that the MCU can NEVER be bricked as you will always be able to get back into dfu mode.? ... Larry On Fri, 24 Jan 2020 at 10:24 PM, Ken Liao,
By Larry Rothman · #10152 ·
Re: NanoVNA-H4 firmware ported to latest ChibiOS #nanovna-h4 #firmware #hack #hacking
Herb, Thank you for helping me test out the firmware. I was using Ubuntu and didn't try it out at Windows. I will be out of reach of my lab computer for the following two days. So it will take a few
By Ken Liao, AA6KL · #10151 ·
Re: RF Demo Kit Testing tutorial released
at 388 US for the kit. they have been putting lot of time on the tutorial and not selling many the way I see it.. [email protected]> a ¨¦crit :
By Pierre Martel <petem001@...> · #10150 ·
Re: NanoVNA-H4 firmware ported to latest ChibiOS #nanovna-h4 #firmware #hack #hacking
On Fri, Jan 24, 2020 at 04:22 PM, Roger Need wrote: How did you manage to get into DFU mode and reflash if the serial port was not recognized in Windows?
By hwalker · #10149 ·
Re: NanoVNA-H4 firmware ported to latest ChibiOS #nanovna-h4 #firmware #hack #hacking
Herb, How did you manage to get into DFU mode and reflash if the serial port was not recognized in Windows?
By Roger Need · #10148 ·
Re: NanoVNA-H4 firmware ported to latest ChibiOS #nanovna-h4 #firmware #hack #hacking
Ken, I used DFU File Manager to convert your hex file to dfu format and then DFU Demo (not File Manger as I previously wrote) was able to load the converted file without error. I encountered the
By hwalker · #10147 ·
Re: RF Demo Kit Testing tutorial released
Ever wonder where the idea for this "RF Demo Kit" came from?? A company called MegiQ has been selling something similar for at least 4 years with their VNA.. https://www.megiq.com/products/vna-sandbox
By Roger Need · #10146 ·
Re: Testing Cookbook Using a VNA
Those new to VNA's will find this 3 part video tutorial very informative. It starts off with the basics, then moves on to calibration and finally on how to test components. Topics like using port
By Roger Need · #10145 ·
Re: Testing Cookbook Using a VNA
"You can get as deep into the pool as you want, but the more you know, the better your measurements will be, and the better you'll know when the instrument is lying to you." One of the best comments!
By Reinier Gerritsen · #10144 ·
Re: NanoVNA-H4 firmware ported to latest ChibiOS #nanovna-h4 #firmware #hack #hacking
Ken, When I try to load your DFU file into DFU File Manager I get a "wrong format" error (see attachment). hugen's latest release loads without error. - Herb
By hwalker · #10143 ·
Re: Corrupted firmware.
Confuse (more). Windows users only need DfuSe for routine firmware updating. Keep it simple as possible. It's also in a google drive "STSW_STM32080_V3.0.6.zip" in the "Firmware" folder (see msg #348
By KV5R <kv5r@...> · #10142 ·
Re: Testing Cookbook Using a VNA
There's always the Wikipedia article, and its slew of references. https://en.wikipedia.org/wiki/Network_analyzer_(electrical) A VNA displays frequency, amplitude (impedance, return loss,
By Mark Randol · #10141 ·