Re: Nanovna-F is here
Warren, where did you purchase your NanoVNA-F? Dave
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David Hartley (K5OZ)
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#4978
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Cal Procedure Question
I would like to set up Cal Files for different parts of the Spectrum. One procedure I have talks about doing that, but one of the steps (after setting the Frequency Range) is to hit "Reset". Now
By
Dick
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#4977
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Re: SOLT calibration vs. TRL
*There are several reasons I believe TRL calibration is not too practical on a low-cost VNA.* 1) The length of the line section needs to be between 20 & 160 degrees electrical length - ideally 90
By
Dr. David Kirkby from Kirkby Microwave Ltd <drkirkby@...>
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#4976
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Re: Are there any guidelines for hacking the firmware?
Ltd <drkirkby@...> wrote: Go for it! It will all make more sense after looking at ttrftech's Github and downloading the source. --buck
By
Buck Calabro, KC2HIZ
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#4975
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Re: Nanovna-F is here
But why do you have more than one NanoVNA?? Am I missing out on something?? (I understand getting a -F in addition to the original)... Mike WY6K "... somewhere in the distance, there's a tower and a
By
WY6K Mike Watts
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#4974
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Re: Nanovna-F is here
Good information.? I have one mystery though - what do you do with 3 NanoVNAs?? Why multiples? Mike WY6K "... somewhere in the distance, there's a tower and a light, broadcastin' the resistance,
By
WY6K Mike Watts
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#4973
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Re: SOLT calibration vs. TRL
That is a nice solution. Who is the manufacturer for the relay? Quality SMA packaged relays are not cheap! Thanks,
By
alan victor
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#4972
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Re: Just got mine. Looking it over.
Hi Wes, NanoVNA-Saver should work fine on whatever flavour of Linux you run, assuming it has at least Python 3.7 (maybe even 3.6) and is 64 bit. PyQt5, the user interface library used, isn't available
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Rune Broberg
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#4971
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Re: Just got mine. Looking it over.
There was a USB c issue with NanoVNA devices up to a few weeks ago When hugen added 2 additional resistors on the connector that tell a USB c host device what is being connected.? This was discussed
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Larry Rothman
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#4970
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Re: Can't update firmware
You need to install the st32 serial port drivers.? There is a 24MB zip file on Hugen's Google drive with the drivers.? Link to the drive should be in the wiki.? After installing, connect device and
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Larry Rothman
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#4969
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Just got mine. Looking it over.
So far, loving it, rough spots in the documentation and all. I won't be using it for deep and dark analyses, just getting ham antennae in-band and centered where I want them, and co-ax
By
N9KDY
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#4968
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Can't update firmware
I'm trying to install new firmware using DfuSeDemo. When I start up NanoVNA in DFU mode (with the white screen), and then connect the device to a USB port, Device Manager shows a new Directory is
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xltrader100@...
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#4967
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Re: Am I Fixing my BNC Calibration using Calibration Standards Adjustments in nanoVNA-Saver 0.1.2
This looks very interesting, Bryan! I am happy that my little piece of software has turned out to be able to do things like this ;-) I am a little curious to see Smith chart measurements of your open,
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Rune Broberg
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#4966
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Re: Nanovna-F is here
I got mine a couple of weeks ago, PC software support is sketchy at the moment but will improve. I love it.
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Bilbo
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#4965
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Re: SOLT calibration vs. TRL
I use a 4 port (SMA) transfer relay and calibrate through that then when I want to switch ports for a 4 port measurement I simply activate the relays and it reverses the device under test as seen from
By
Bilbo
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#4964
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Am I Fixing my BNC Calibration using Calibration Standards Adjustments in nanoVNA-Saver 0.1.2
Folks, Because of convenience and several other factors I usually use my nanoVNA through SMA to female BNC connectors. As a result, I calibrate both the nanoVNA and nanoVNA-Saver through the SMA to
By
Bryan, WA5VAH
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#4963
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Nanovna-F is here
Oh...... my....... GOODNESS!!! I love Nanovna original. I have three of them. But Nanovna-F just arrived and it is simply fantastic. It is heavy, thick, completely encased in aluminum and it has a
By
Warren Allgyer
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#4962
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Re: SOLT calibration vs. TRL
True, however, I was thinking forward as I understand a 3 channel nano receiver is under development. Further, the technique for obtaining true 2 port s data currently requires unbolting the test
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alan victor
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#4961
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Re: SOLT calibration vs. TRL
drkirkby@...> wrote: What I meant to say is that when using TRL* calibration on an HP 8753, 6 to 10 dB attenuators need to be added to the test ports of 8753 VNAs. The 8720D
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Dr. David Kirkby from Kirkby Microwave Ltd <drkirkby@...>
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#4960
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Re: SOLT calibration vs. TRL
TRL calibration requires a VNA with 4 receivers. The HP 8753 series, which have 3 receivers, can perform something HP refer to as TRL*. This requires a good match at the test ports - typically 6 to 10
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Dr. David Kirkby from Kirkby Microwave Ltd <drkirkby@...>
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#4959
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