Re: The T-Check confusion
Hi Erik Just one more practical comment. Whatever you do the single forward and the single reverse measurement s1p files does not carry any information about the port mismatch to take into account for
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Kurt Poulsen
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#8050
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Re: Using the Nano as a receiver?
Yes, CH1 is a receiver that looks for signals at the frequency (or harmonic) of CH0. Keep in mind that nanoVNA steps, rather than sweeps, so that if set for a wide span will probably miss a narrow
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Oristo
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#8049
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Re: Using the Nano as a receiver?
Read here: /g/nanovna-users/topic/34079496#2165 -- NanoVNA Wiki: /g/nanovna-users/wiki/home NanoVNA Files: /g/nanovna-users/files Erik, PD0EK
By
Erik Kaashoek
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#8048
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Re: The T-Check confusion
I've found and bought an affordable SMA transfer switch (2x2 switch) on eBay and I was hoping it would allow me to extend nanoVNA or one of my home build VNA's to full two port capability by extending
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Erik Kaashoek
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#8047
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Using the Nano as a receiver?
Hi, I'm quite new to the topic. I learned a lot about the bad design of commonly available antennas and have modified quite a number since then with the help of the Nano. From what I understand, a VNA
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troesne1@...
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#8046
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Re: The T-Check confusion
Hi Gabriel You are right it is a matter og software and for that matter firmware. As the NanoVNA is presently it does not have facilities embedded for neither calibration kit data and full 10/12 term
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Kurt Poulsen
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#8045
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Re: errors of "error" models
@ Gary O'Neil, N3GO - 8 December 2019 /g/nanovna-users/message/8024 Dear Gary, Once again, we thank you for your time. You are right. Yes, this is indeed an endless,
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gin&pez@arg
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#8042
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Re: The T-Check confusion
Hi Eric A 10dB att in the Ch1 path will not cure the problem as you also have a (invisible) mismatch in the Ch0 sourse impdance as well. So two attenuator might give some further improvements. But it
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Kurt Poulsen
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#8041
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Re: The T-Check confusion
I've deliberately chosen not to rely on scikit-rf in NanoVNA-Saver. Library reliance is kept at a minimum, and figuring out the mathematics behind the calibration was part of the fun of writing the
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Rune Broberg
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#8040
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Re: The T-Check confusion
Kurt, It appears (in my limited understanding) the poor matching to Z0 of CH1 (port 2) is the biggest reason why the T-check is not performing well on the nanoVNA. Would you agree that using a 10dB
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Erik Kaashoek
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#8037
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Re: Brand new user here
Stylus: Guitar pick works also STX VHF/UHF Rover
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K5ATX Groman
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#8036
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Re: Brand new user here
I find metallic works well.
By
Bob Albert <bob91343@...>
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#8035
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Re: Brand new user here
i use a pen cap or a tooth pick its a resistive screen so anything pointy and non metalic will work even a #2 pencil
By
k9wkj
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#8034
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Re: connector swap
Photos? On Sun, 8 Dec 2019 at 1:49 PM, Nulluser00@...<Nulluser00@...> wrote: I mounted my NanoVNA on an Budd aluminim cast box and use male SMA to male SMA to a female SMA to male BNC
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Larry Rothman
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#8033
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Re: 1.5 GHz ??
Oh that's useful information. I have some simple measurements to do at 1.2Ghz, will give it a try.
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Cathryn Mataga (KE6I)
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#8032
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Re: Brand new user here
Try your local computer store. I just bought a pack of 10 from Amazon for less that $& US. *Clyde K. Spencer*
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Clyde Spencer
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#8031
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Re: nanoVNAPartner v0.17
I have this problem also. -- Cheers, Ed Humphries, KT4ED
By
Ed Humphries
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#8030
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Re: The T-Check confusion
Hi Herman First of all it is not the mini-VNA it is the DG8SAQ VNWA. Sorry these kind of measurements is only possible with a VNA having 10/12 term error correction facilities. NanoVNA is not able to
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Kurt Poulsen
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#8029
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Re: 1.5 GHz ??
No configuring necessary.? Simply key in the frequency. By default it comes up with 900 MHz but you can ask for up to 1.5 GHz and you will get it. Bob
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Bob Albert <bob91343@...>
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#8028
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1.5 GHz ??
I have read elsewhere than the NANOVNA will operate to1.5 GHz. Is this ture? If so, how do I configure it to do so? -- *Dave - W?LEV* *Just Let Darwin Work* *Just Think*
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W0LEV
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#8027
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