Re: #nanovna-h4 stops at boot screen
#nanovna-h4
Really annoying error on a new device. However, the fault is not an electrical fault. This is a mechanical fault because the tangent is forced to operate by an imaginary pressure.
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Gyula Molnar
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#10499
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Re: #nanovna-h4 stops at boot screen
#nanovna-h4
Hi Hans-Martin, Probably the problem with you is what I had. Unfortunately, the plastic box rests on the touch screen, causing pressure. As a result, there is a malfunction. This disorder may take
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Gyula Molnar
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#10498
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Re: #nanovna-h4 stops at boot screen
#nanovna-h4
Oristo, Thanks for clarifying some of the things that might be wrong. I hope he gets it working. It must be very frustrating for Hans-Martin to finally get his new H4 and it is not working... Roger
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Roger Need
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#10497
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Re: #nanovna-h4 stops at boot screen
#nanovna-h4
Good call. No, that would not be useful, given that it boots to the version screen. FWIW, the power switch already disconnects power to the processor. Yes, I would try that next, if unpinching the
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Oristo
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#10496
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Re: Free Matching software that may be of interest
Sim Smith. It's free and multiplatform. You can't beat the support you get from Ward. Dave VE7HR -- 72 de Dave VE7HR
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Dave Miller
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#10495
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Re: Free Matching software that may be of interest
Smith version 2 was free and does some nice things. The author, Dr Dellsperger, is a retired professor from Bern University of Applied Sciences. I see there is a version 4, but I can't play with it
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Mark Randol
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#10494
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Re: Free Matching software that may be of in
Thank you, I'll look him up
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Kali
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#10493
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Re: #nanovna-h4 stops at boot screen
#nanovna-h4
I have heard that there are cases where the touch display is "pinched" by the case and this may result in faulty touch screen operation. Maybe try taking it out of the case and then try rebooting.
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Roger Need
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#10492
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Re: Your NanoVNA version
Hi All, Thanks for the quick replies (even if they confirmed my worst fears!) I'm running Windows 7 and it is sort of working but I'll give it another go tomorrow, Windows does see something but I
By
Graham G7LMF
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#10491
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Re: Free Matching software that may be of in
Rune is a member of the forum. Just do a search and message him with nanovna saver in the title.? You can also go to his GitHub location Sent from Rogers Yahoo Mail on Android On Thu, 30 Jan 2020 at
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Larry Rothman
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#10490
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#nanovna-h4 stops at boot screen
#nanovna-h4
My H4 arrived very fast. Ordered it directly at the hugen store on alibaba. Unfortunately when turning it on it stops and freezes at the blue boot screen. Switching to DFU mode worked (good not zo
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Hans-Martin Kurka
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#10489
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Re: Free Matching software that may be of interest
Seriously, get real. Expecting Rune to emulate some random device based on a few images and product description is highly inconsiderate. To justify the effort required to modify and extend software
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Oristo
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#10488
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Re: Your NanoVNA version
Except for connecting to the PC, is it working otherwise? What software are you using for the PC? If Windows, does the connection appear on the Device Manager?
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W5DXP <w5dxp@...>
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#10487
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Re: Your NanoVNA version
Yes, missing "CH0" on front bezel makes it a worse clone. .. but it has shields over RF, which makes it at least second generation worse clone. That has >>NOTHING<< to do with worse clone or not...
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Oristo
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#10486
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Re: Cheap calibration loads
#parts
Thanks Dana for confirmation, I've initiated return of items. By the way, the visual inspection doesn't unveil any mechanical or heating issues. They look like new. Regards, Constantin
By
cosbug@...
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#10485
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Re: iffy readings for swr
Depends as well on the power he's going to be sending to the antenna. If he uses an amp I would by far not trust RG58 with 1KW.
By
nanovnagroup@...
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#10484
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Re: Your NanoVNA version
Hi all, I think I know the answer before I ask this but have a bought one of the worst clones? It has green (not blue) leds and won't connect to my PC! Graham G7LMF
By
Graham G7LMF
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#10483
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Re: Free Matching software that may be of interest
Hey Larry, Thanks for reply.. maybe something like this one: https://www.mfjenterprises.com/Product.php?productid=MFJ-269CPRO if you could help me get to Rune.. it woulds be great as I am new to this
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Kali
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#10482
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Re: Free Matching software that may be of interest
I did something similar in Open Office Calc for all four cases, except that my version requires you to set the capacitor and inductance values separately until you find a match so that you can see the
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Dave AB7E
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#10481
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Re: Free Matching software that may be of interest
You should have read ALL of the information there.? The author clearly states that it is his intention for the software to ALWAYS be free, and that he keeps sliding out the expiration date for it
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Dave AB7E
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#10480
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