Re: F303 and 4" LCD for next generation NanoVNA
#circuit
#flash_size
#improvement
#enclosure
#battery
I've made a new PCB for testing, it's working well now, but At the moment ADC1 can't read VBAT data correctly, and I can't get into DFU mode through the menu yet, I haven't found the cause of the
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Hugen
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#8166
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Re: ordering a bigger screen from aliexpress
my post code is ln95je,i put that and it says wrong format every time,tried it in caps too,same result,what should i put then?
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Paul M3VUV
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#8165
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Re: QUESTION
http://deepelec.com/ I have purchased it from them without any hassle, and with complete tracking online.
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Venkataramanan Sankararaja
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#8164
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Re: Increasing measurement range (ohms) ?
On Sat, Nov 16, 2019 at 12:59 PM, Oristo wrote> Oristo, I picked up a bridge from the eBay link above. The build quality is poor and the 2, 100 ohm resistor pairs are each not in parallel. So even
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Larry Rothman
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#8163
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Re: File updated in [email protected]
Hi Herb, I think Erik or QRP (and maybe Rune) will have to answer that more accurately than me, as what I wrote was my interpretation of their explanation in a forum post waaaay back in October some
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Larry Rothman
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#8162
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Re: File updated in [email protected]
On Wed, Dec 11, 2019 at 12:46 PM, "[email protected] Notification" <[email protected]> wrote: * /NanoVNA_Console_Commands_Dec 9-19.pdf (
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hwalker
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#8161
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Re: ordering a bigger screen from aliexpress
On Thu, Dec 12, 2019 at 12:55 PM, <nanovnauser@...> wrote: ,,, i enter my post code,it just says its in the wrong format,ive tried every which way with no luck,im tearing my hair out,anyone any
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hwalker
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#8160
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Re: QUESTION
Hi David, the NanoVNA-F is designed by a Chinese ham, so what you want to avoid is a clone - not a Chinese one ;-) The original NanoVNA-F is available at http://deepelec.com/ - and only there, as I
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Rune Broberg
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#8159
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Re: ordering a bigger screen from aliexpress
My FCU refuses to honor charges on my card to Aliexpress. I no longer tempt ordering from them. Three times. Same results. Likely due to Chinese vender? Dave - W?LEV -- *Dave - W?LEV* *Just Let
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W0LEV
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#8158
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QUESTION
After using the original with the 2.8" screen, I'm looking to order the 4.3" unit. As best I can gather, there are three units available all with different external presentations. These are: 1)
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W0LEV
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#8157
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ordering a bigger screen from aliexpress
ive found a screen the same as hermans 3.2 inch on aliexpress(thanks for the link herman),however it goes ok trying to buy it untill i enter my post code,it just says its in the wrong format,ive tried
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Paul M3VUV
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#8156
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Re: running nanoVNA-saver under Linux Mint XFCE
Hi, Like others, I am having problems with Python PyQt5 etc. I am trying to get NanoVNA to run with a Raspberry Pi 4 with very little success. Works perfect on the Mac Pro. Do you or others know of a
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g8ore@...
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#8155
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Re: errors of "error" models
Garry, Thanks, I may have formulated unclear but what you state is what I meant. Uncertainties in M act as "error bars" making it uncertain where you are in the graph, Uncertainties in the calibration
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Erik Kaashoek
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#8154
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Re: errors of "error" models
Erik; My bad...I incorrectly stated that zero reactance is established at all three calibration points. Everything goes to infinity at the right edge of the chart. :-) -- 73 Gary, N3GO
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Gary O'Neil
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#8153
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Re: errors of "error" models
Hello again Erik; I think you may be confusing the uncertainty in M with the uncertainty in the calibration standard. For example; if the calibration standard is 45 ohms (a substantial 10 percent
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Gary O'Neil
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#8152
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Re: 30MHz and below
As QRP RX already wrote, you need to repeat the calibration with the new reduced span to have 101 calibration points in there.
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styroflyer
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#8151
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Re: errors of "error" models
Forgive me to add something trying to create a simple mental picture of what you are saying. As the nanoVNA has a almost perfect bridge below 300MHz (apart from a phase shift due to transmission line
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Erik Kaashoek
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#8150
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Re: errors of "error" models
GIN&PEZ; I have only advanced in my understanding to the extent that I have been able to confirm that the results of complex load measurements using the G-mini equations map virtually 1:1 to those
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Gary O'Neil
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#8149
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Re: Free version of LabVIEW coming
Probably should add Python to the mix as candidate for your own application development.. Matlab is gold standard for college academics but it is more targeted at nuts and bolts simulations. It is
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roncraig1@...
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#8148
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Re: errors of "error" models
#82' : On The Two-Port Sine Qua Non Practical Application - Source and Load - REF : 11 December 2019 - /g/nanovna-users/message/8136 Hello, Allow us, please, to announce that we just
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gin&pez@arg
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#8147
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