Re: Bricked NanoVNA-H
Not to be offensive but have verified 3 volt and 5 volt power? LEDs lit>
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Charlie N2MHS <ucfargis1@...>
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#20934
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Re: Pitfalls of measuring components with the NanoVNA
#measurement
Now let's go off the deep end - how do you characterize ferrites and powder iron (rod and toroid) for useable frequency as inductors/choke, transformers, and wide band transformers? Mike N9XYP
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Michael
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#20933
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Re: Nano VNA: An Antenna Stethoscope ( pdf file latest edition de k3eu )
All good ideas. Clubs are always looking for interesting programs. Before Covid, our in-person club meeting would sometimes have a guest speaker ¡°live¡± via Skype. We have a projector and some
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Dave Fugleberg
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#20932
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Re: FINAL ENTRY on my CMC VENTURE
Chris, did you get the PDF version of the measurements? Those are the final version. I'd be glad to work with you on how I made the measurements. Many were made using the HP 7653C and not the NANO.
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W0LEV
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#20931
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Re: Bricked NanoVNA-H
OK, was finaly able to get the NanoVNA-H in DFU mode and was able to find it in DfuSeDemo... loaded the proper firmware DFU file and loaded it correctly as per the procedure... the unit is still
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VE2DX
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#20930
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Re: Bricked NanoVNA-H
ok!... Let me be clear... the unit was NOT loaded with -H4 firmware... The unit was sitting on a shelf for a couple of months and when I pulled it out to use it it was... DEAD... Bricked... NOT
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VE2DX
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#20929
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Re: Nano VNA: An Antenna Stethoscope ( pdf file latest edition de k3eu )
Or post it on Youtube - No need for a DVD - someone can just download it and save it. I would suggest getting some help for this. Someone who is familiar with recording, editing, and synchronizing
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Jim Lux
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#20928
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Re: Nano VNA: An Antenna Stethoscope ( pdf file latest edition de k3eu )
I like the idea but would suggest a USB drive instead of a DVD, as most laptops no longer have DVD drives and USB/thumb drives are quite inexpensive. Sent: Wednesday, February 24, 2021 12:07 PM To:
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Gene - K1AVE
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#20927
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Re: Nano VNA: An Antenna Stethoscope ( pdf file latest edition de k3eu )
Barry K3EUI- I appreciate your dedication to bring this effort to the group. Obviously there is a Power Point version. You will be in demand when hamfests, return Shortly. I encourage you to narrate a
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Larry Macionski
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#20926
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Re: FINAL ENTRY on my CMC VENTURE
Hi Dave, Would love to have a chat to you about your results. I'd like to republish your findings, but wanted to chat about how you came up with them. Chris M0VUE
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c suddell
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#20925
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Re: Triband antenna
Somewhat off-topic - but at least tangentially related: Just last week I purchased a Comet CA-2X4SR, which is marketed as a dual band 2m/70cm antenna. When I swept it, I discovered it is also resonant
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NY2A
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#20924
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Re: Nano VNA: An Antenna Stethoscope ( pdf file latest edition de k3eu )
This is high quality work. I also had reservations regarding the TDR explanation on the nanoVNA, which was well explained in another post. I wish there was a bit more commentary to elaborate on the
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Gregg Messenger VE6WGM
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#20923
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Re: Nano VNA: An Antenna Stethoscope ( pdf file latest edition de k3eu )
Barry, Thanks! Appreciate your hard work. Your explanations parted the clouds for me. Now I feel like I'm flying "VFR on top." Bob, WA2DLL
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Robert Freeman
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#20922
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Re: NanoVNA-H software update
#nanovna-h
Thanks for publishing your actions and results! Please seriously consider writing that up as a sort of "magazine article" and posting it in the group's Files directory. It's a lot easier to find
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DougVL
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#20921
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Re: NanoVNA-H software update
#nanovna-h
Yes, in DFU mode the NanoVNA is only a memory storage device, not a 'computing' device. No communication, no calculating, no measuring. It is just a "solid state disk drive" thing. -- Doug, K8RFT
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DougVL
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#20920
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Re: Nano VNA: An Antenna Stethoscope ( pdf file latest edition de k3eu )
You can also take your Resistive, Reactive, Complex Numbers and run them straight over to Sim Smith for some more fun. I wish we had these Nano's 30 years ago, it's positively amazing what bang for
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unceee@...
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#20919
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Re: Nano VNA: An Antenna Stethoscope ( pdf file latest edition de k3eu )
Berry -- this is a great bit of work. Lots of meat here and served up very well. I read this multipule times and get a bit more into my thick skull each time. Good job! Don Km4udx
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Don - KM4UDX
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#20918
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Re: Nano VNA: An Antenna Stethoscope ( pdf file latest edition de k3eu )
I will add my appreciation to Roy's and to his comment about the slightly erroneous TDR explanation. There are a couple of items i would take up with you- The picture /display of attenuation versus
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Peter LB0K
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#20917
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Re: Bricked NanoVNA-H
If we have managed to find a solution, please write it down, because we all learn from it. Thanks -- *** If you are not part of the solution, then you are the problem. ( http://ha3hz.hu/ ) ***
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Gyula Molnar
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#20916
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Re: NanoVNA-H software update
#nanovna-h
Hello everybody, Because the product can be connected to multiple versions and multiple operating systems, it¡¯s pretty hard for everyone to ¡°chew by mouth¡± what to do. I¡¯m not even talking
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Gyula Molnar
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#20915
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