Nano VNA - Useful frequency range
Hi All, I've been reading the comment about frequency range vs sample size and other issues and I'd like to suggest / discuss some thoughts. Although it's nice to have the capability to measure up to
By
Martin
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#3952
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Re: Accuracy of calculated values - Nano VNA and Saver
Hi Martin, I too read Owen's post. I'm not particularly fond of his way of implying that I would be "resistant to correction"; and calling what I do "very hammy". If it is one's intention to post like
By
Rune Broberg
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#3951
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Re: How many hardware versions?
Thanks, Herb and Rune! Wiki now has a "Hardware Versions" link: /g/nanovna-users/wiki
By
Oristo
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#3950
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Re: Cal-Kit Standards' Definitions
Although more difficult to implement in the firmware, and a PITA for users, it would not be surprising if even better performance could be obtained by * Setting C0 to 0 * Reading C1 from the datasheet
By
Dr. David Kirkby from Kirkby Microwave Ltd <drkirkby@...>
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#3949
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New mode R / L / C display
Hi All, I've been using my Nano quite extensively in the workshop, and I find it very handy for quickly checking the value of surface mount components, particularly capacitors and inductors. It would
By
Martin
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#3948
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NanoVNA for sale
Hi All: I am selling my recently acquired NanoVNA , this a hugen version from aliexpress, includes the necessary calibration items also I am including a ST-link V2 programmer. $55.00 includes shipping
By
Ross Bell
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#3947
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Accuracy of calculated values - Nano VNA and Saver
Hi All, Owen Duffy has recently posted a note about the Nano VNA on his blog. https://owenduffy.net/blog/?p=15747 He makes a few points about the accuracy of calculated values with both the Nano VNA
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Martin
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#3946
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Re: How many hardware versions?
The block diagram is missing the measurement of the reference signal? Op 4-10-2019 om 12:31 schreef hwalker:
By
Reinier Gerritsen
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#3945
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Re: info update
In your web space I see many files, I need only DMR-CLEAR_MEMORY_DFU.dfu and an executable program, is it correct? Should I find the program.exe? ..Again: Reasons you might want to upgrade: 1. TDR
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@in3elx
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#3944
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Re: NanoVNA V2
Hello group, some remarks: take a look at Raspberry Pi 3.5" lcds with 480x320 resolution, or bare with ILI9486/ILI9488 controller (a lot of them can be found on chinese shops) please consider the
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Slawek
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#3943
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Re: info update
Rob, Please understand that "DMR-CLEAR_MEMORY_DFU.dfu" will wipe your device and it will not work until you re-load whatever firmware you are upgrading to. It is used to give you a clean slate prior
By
hwalker
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#3942
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Preamp noise figure (NF) measurement?
I am wondering if the nanoVNA could be used to measure the noise figure for a preamp. If it could, I am assuming it would use S21 results in some manner.
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Bruce KX4AZ
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#3941
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Re: How many hardware versions?
Herb, thanks for V2 logical schematics. I'm following the V2 topic with a lot of interest. Diego
By
pluto@...
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#3940
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Re: How many hardware versions?
Pluto, That looks like the design currently being sold. V2 will use two synthesizers that overlap and allow it to exceed a 1 GHz measurement range (see attachment). Herb
By
hwalker
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#3939
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Re: info update
So it's not important to clear the memory? How to use? For other questions, what can you tell me?
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@in3elx
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#3938
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Re: How many hardware versions?
Herb, there appears to be both a "NanoVNA-H V2" and a (completely unrelated) "NanoVNA 2" project. The latter project hasn't been very responsive to questions about who they are, and just seem to have
By
Rune Broberg
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#3937
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Re: Another ebay deal?
Or three... Fit a RCA/0.1" pins/BNC/SO239/SMA (depends what freq range and what is to hand) to either side of a pcb and the DUT (Device Under Test) in between. Even less than $6 probably assuming you
By
Dom Baines M1KTA
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#3936
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Re: How many hardware versions?
Thanks hwalker !! So the Hugen hardware schematics (https://github.com/hugen79/NanoVNA-H/blob/master/doc/Schematic_nanovna_3.3.1.png) *should* be that of the cards currently on the market? Diego
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pluto@...
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#3935
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Re: info update
/g/nanovna-users/message/3929
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hwalker
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#3934
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Re: info update
Where is it?
By
@in3elx
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#3933
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