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Re: We started selling nanoVNA-H4 using STM32F303CCT6 and 4-inch LCD
When I try that using Firefox, I get a blank white window after hitting "Send inquiry now" and, yes, I checked the agree with Alibaba box ============================================== Glen, On the
By hwalker · #9389 ·
Poor Manual
Where can I get better manual or instructions?
By Robert E. Gross · #9388 ·
Re: We started selling nanoVNA-H4 using STM32F303CCT6 and 4-inch LCD
Whats the total cost in gbp for sending 1 unit to the uk,ie vna inc shipping?
By Paul M3VUV · #9387 ·
Re: We started selling nanoVNA-H4 using STM32F303CCT6 and 4-inch LCD
When I try that using Firefox, I get a blank white window after hitting "Send inquiry now" and, yes, I checked the agree with Alibaba box 73 Glen K4KV
By GmailK4KV <glenk4kv@...> · #9386 ·
Re: nanovna that continues to indicate 50 ohms when S11 is open
Although this is not the version I made, I am happy to remind you that you can view the correct data by simply switching the blue curve to CH0. The picture shows that the clone manufacturer uses very
By Hugen · #9384 ·
Re: nanovna that continues to indicate 50 ohms when S11 is open
Colin, These are with calibration active, can you go in the calibration menu and switch of the calibration so we can see the raw measurements? This will help understand where the problem is -- NanoVNA
By Erik Kaashoek · #9383 ·
Re: nanovna that continues to indicate 50 ohms when S11 is open
It seems that the more often I calibrate, the worse it gets. It also no longer indicates a short circuit :-( I have attached the picture ope, short and load
By Colin Dexter · #9382 ·
New video by W6LG #general_vna
https://www.youtube.com/watch?v=R5iYuGLvlas&feature=em-uploademail
By Dave Kjellquist, WB5NHL · #9381 ·
Re: coax loss
W6LG just posted a video measuring coax loss using nanovna and -saver: https://www.youtube.com/watch?v=R5iYuGLvlas His measurements were pretty close to the coax loss calc on my site :-) --kv5r
By KV5R <kv5r@...> · #9380 ·
Re: We started selling nanoVNA-H4 using STM32F303CCT6 and 4-inch LCD
NanoVNA-H rev3.4 has been similarly modified, please check https://github.com/hugen79/NanoVNA-H/issues/14 hugen
By Hugen · #9379 ·
Re: We started selling nanoVNA-H4 using STM32F303CCT6 and 4-inch LCD
On Thu, Jan 9, 2020 at 11:16 PM, <hugen@...> wrote: We are still selling through Alibaba, and bulk purchases will be even more favorable due to postage.
By hwalker · #9378 ·
Re: We started selling nanoVNA-H4 using STM32F303CCT6 and 4-inch LCD
On Fri, Jan 10, 2020 at 07:33 PM, Dr. David Kirkby, Kirkby Microwave Ltd wrote: > > LOn Fri, 10 Jan 2020 at 07:16, <hugen@...> wrote: > > This version was ported by Ken Liao (AA6KL). You can
By Hugen · #9377 ·
Re: We started selling nanoVNA-H4 using STM32F303CCT6 and 4-inch LCD
David, A few of us have made purchases using Paypal. The procedure is to leave a message with Maggie King at hugen's Alibaba store that you want to use Paypal. She will send you her Paypal email. Once
By hwalker · #9376 ·
Re: RF Demo Kit Testing tutorial released
Hello Klaus, Your Smith chart 8.png of test field 8 (470 nH) shows at low frequency an Open. That can not be correct. To verify your calibration please test: My Smith chart in diagram
By Rudi · #9375 ·
Re: nanovna that continues to indicate 50 ohms when S11 is open
You can help people helping you by posting some picture. Steps to take: 1: Go to calibration and do a reset and just to be sure switch the calibration off. (did you switch it on after doing your
By Erik Kaashoek · #9374 ·
Re: NanoVNA-Web-Client, problem with Chromebook
We already have reports of a Linux distro with dependencies on a specific Python version that is incompatible with NanoVNA-saver. While running multiple Python versions is possible, screwing things up
By Oristo · #9373 ·
Re: We started selling nanoVNA-H4 using STM32F303CCT6 and 4-inch LCD
LOn Fri, 10 Jan 2020 at 07:16, <hugen@...> wrote: This version was ported by Ken Liao (AA6KL). You can check the following Can you send a *PayPal invoice* to someone so he can pay via PayPay?
By Dr. David Kirkby, Kirkby Microwave Ltd · #9372 ·
Re: nanovna that continues to indicate 50 ohms when S11 is open
That very much smells like bad calibration, which I get far too often. Watch Smith display during calibration. It will generally be incorrect, but should change between open, short and load.
By Oristo · #9371 ·
Re: RF Demo Kit Testing tutorial released
I've measured with the VA5. The measurements are the same.
By Klaus W?rner · #9370 ·
Re: NanoVNA-Web-Client, problem with Chromebook
NanoVNA-saver is written in Python.? Gallium is based on/compatible with Xubuntu, and Python is available in the Ubuntu repositories.? So, I would assume that NanoVNA-saver would run just fine under
By Jim Allyn - N7JA · #9369 ·