Re: First PCB pictures of the V2
How does this differ from the 4.3" NanoVNA-F already available? Tnx, Dale W4OP
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Dale Parfitt
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#8329
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Re: First PCB pictures of the V2
Just another voice asking for a large screen version -- I would really like that! Thanks for all you're doing! John ----
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John Ackermann N8UR <jra@...>
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#8328
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Re: First PCB pictures of the V2
Good job, perhaps offer the option to rotate display 180 degrees so connectors and jog switch point away from user.
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GM4CID <gm4cid@...>
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#8327
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Re: First PCB pictures of the V2
Nice job! I can't wait to get one, I could really use one for BLE antenna development. Can I be a beta tester? Op 17-12-2019 om 15:32 schreef Gabriel Tenma White:
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Reinier Gerritsen
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#8326
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Re: First PCB pictures of the V2
I wish you had chosen an alternate location for the selection switch. Right between the connectors will be awkward to use. It probably would have been better to swap the switch and USB connector
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Sam Reaves
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#8325
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Re: First PCB pictures of the V2
Looks good. What is the lowest frequency you can set the unit to? Sam W3OHM
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Sam Reaves
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#8322
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Re: First PCB pictures of the V2
Ouch, the toggle switch between the outputs? Inconvenient to say at least. I would hope you find a better switch than this one it is to easy damaged especially in the position it is in. Will you be
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Bilbo
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#8321
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Re: errors of "error" models
Good morning GIN&PEZ; To the extent that I can contribute in some positive manner, I am certainly willing to do so under the careful scrutiny of your editorial council to prevent propagating
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Gary O'Neil
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#8320
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Re: Are any of the NanoVNA sold on Amazon any better or worse than any others? Is there a better U.S. site to order from?
I would strongly advise purchasing for Hugen's site: <https://www.alibaba.com/product-detail/Hugen-NanoVNA-H-New-item-Original_62342877955.html> I haven't had any issues ordering form the alababa site
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Mike N2MS
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#8319
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Re: First PCB pictures of the V2
From: Gabriel Tenma White Subject: [nanovna-users] First PCB pictures of the V2 Here are the final pre-production prototypes, and plots showing uncalibrated and calibrated S21 floor. PCB files will be
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David J Taylor
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#8318
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Re: First PCB pictures of the V2
Shields will only show performance in a RF environment, if your lab is clean, you will not notice anything. So keep the shields in place, please. Going to become a VolksVNA. OE8UWW
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Helmut Wabnig
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#8317
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Re: Are any of the NanoVNA sold on Amazon any better or worse than any others? Is there a better U.S. site to order from?
I was wondering about that als
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Helmut Wabnig
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#8316
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Re: Are any of the NanoVNA sold on Amazon any better or worse than any others? Is there a better U.S. site to order from?
There are little sensible specifications on the raw performance. The match at port 1 is significantly better than port 2. As for dynamic range, there should be two figures for that - a system dynamic
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Dr. David Kirkby, Kirkby Microwave Ltd
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#8315
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First PCB pictures of the V2
Here are the final pre-production prototypes, and plots showing uncalibrated and calibrated S21 floor. PCB files will be released when V2 is available for order. The LCD connector can accept the 4
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OwO
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#8313
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Re: Are any of the NanoVNA sold on Amazon any better or worse than any others? Is there a better U.S. site to order from?
One thing I do not understand is why connecting the port 1 and 2 grounds together should decrease performance. Shouldn't all grounds be connected together, and all of these grounds to the chassis?
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Daniel Marks
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#8312
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Re: Are any of the NanoVNA sold on Amazon any better or worse than any others? Is there a better U.S. site to order from?
Here are plots before and after calibration.
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OwO
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#8311
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Re: errors of "error" models
@Gary O'Neil , N3GO - 17 December 2019 /g/nanovna-users/message/8294 Dear Gary, Your decision is really great. So, would you allow us, please, to ask you if could you reconsider your
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gin&pez@arg
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#8310
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Re: Are any of the NanoVNA sold on Amazon any better or worse than any others? Is there a better U.S. site to order from?
I'm pretty sure S11 directivity is a well defined parameter. It is the (uncalibrated) ratio between the |S11| reading when measuring an ideal load and the lowest |S11| reading when measuring loads
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OwO
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#8309
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Re: Are any of the NanoVNA sold on Amazon any better or worse than any others? Is there a better U.S. site to order from?
If you could produce a set of specifications, in a *format* used by Keysight, then people with the right equipment could compare the performance of one NanoVNA-H against and the specifications, and
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Dr. David Kirkby, Kirkby Microwave Ltd
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#8308
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Re: Some test results using a NanoVNA
/g/nanovna-users/message/4970
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Oristo
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#8307
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