Re: NanoVNA-Saver 0.1.0
Rune, Running firmware NanoVNA-H__900_ch_20190924.dfu from hugen with nanovna-saver.v0.1.0 This firmware has TDR mode built-in to the device. If the TDR Transform is enabled in the device, data sent
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Bryan, WA5VAH
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#3767
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Re: NanoVNA-Saver 0.1.0
Hi Larry, you're right - the application still thinks at that point that the NanoVNA is connected - despite having just received an error that it was disconnected. It should probably just disconnect
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Rune Broberg
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#3766
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Another ebay deal?
I saw this https://www.ebay.com/itm/RF-Demo-Kit-NanoVNA-Tester-Board-Filter-Attenuator-for-NanoVNA-F-Vector-Network/174045219309 Thought might be of interest to some. 72 Dom M1KTA
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Dom Baines M1KTA
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#3765
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Re: edy555 design notes on CALIBRATION sets
LCR meter, OSL calibration and measurement for alligator clips, using axial lead 51 Ohm resistor LOAD 23 Ohms 7 uH @ 0.1 MHz 5.5 Ohms 6.6uH @ 1 MHz 40 Ohms 400mH @ 10-100MHz 57 Ohms 900pH @500-900MHz
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Oristo
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#3764
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Re: NanoVNA-Saver 0.1.0
Hi Rune,There is a small bug in the serial connect routine.If I disconnect the Nano while scanning, I get the pop-up error and that's OK.If I then click on the Rescan button, the selected serial port
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Larry Rothman
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#3763
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Re: More comparisons of NanoVNA and Keysight analyzer
On the AIM-4170D PC SW, the y=0 axis is also used for resistance and reactance on the same graph as SWR so here is what it usually looks like:
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W5DXP <w5dxp@...>
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#3762
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Re: NanoVNA-Saver 0.1.0
Hi Nick, this looks ... interesting. The Gtk error isn't something I have any control over - it seems to be your Window Manager (at a guess?) or local Qt implementation that's using Gtk for its
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Rune Broberg
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#3761
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Re: NanoVNA-Saver 0.1.0
Here's the console output when when I hit the load cal button... nick@LM19-2:~$ python3.7 ./nanovna-saver/nanovna-saver.py NanoVNASaver 0.1.0 Copyright (C) 2019 Rune B. Broberg This program comes with
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Nick
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#3760
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Re: NanoVNA-Saver 0.1.0
Hi Bryan, thanks for the feedback! The code used is the same for S11 and S21 charts of the same type, such as the return loss/gain charts - so the errors end up being the same ;-) Thanks for checking
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Rune Broberg
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#3759
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Re: NanoVNA-Saver 0.1.0
Hello Brian, thanks for trying out the software! :-) I do not read from or save to the NanoVNA calibration locations. Currently, my recommendation is that users calibrate the NanoVNA across the full
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Rune Broberg
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#3758
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Re: Deal on ebay
That's actually a good point.? However, the AD4350 only goes down to 137 MHz.? So unless they have done something creative to extend that range down lower, you will need BOTH V1 and V2 if you want
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WY6K Mike Watts
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#3757
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Re: NanoVNA-Saver 0.1.0
Rune, Thanks for the new release. Keep up the great work. I see the same issue with S11 return loss in dB. I do not see it in the phase plots. -- Bryan, WA5VAH
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Bryan, WA5VAH
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#3756
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Re: NanoVNA-Saver 0.1.0
Hi Norbert, thanks for the bug report! I can tell you that the data points are drawn where they should be, but the reference lines are 10 pixels offset. Whoops! I've fixed it on GitHub, and the fix
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Rune Broberg
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#3755
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Re: NanoVNA-Saver 0.1.0
Hi Bill, The .exe file should work just fine on Windows 10. First startup can take a little while, maybe 10-20 seconds, but after that it should run fine. What happens when you try to start it? --
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Rune Broberg
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#3754
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Re: How we use the Nanovna
These are nice little instruments !!Thanks for the update.
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Larry Rothman
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#3753
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Re: How we use the Nanovna
Larry Not very much actually. It was calibrated at the 100 MHz span and then I reduced the span to 50 MHz without recalibration in order to get better resolution. At these levels I am not concerned
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Warren Allgyer
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#3752
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Re: NanoVNA-Saver 0.1.0
Hi Rune, Thanks for your development efforts! I have a quick question about saving calibration data; can you read from / save to memory locations on the NanoVNA? 73, Brian WB8AM
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Brian Garber
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#3751
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Re: NanoVNA-Saver 0.1.0
Is there a trick to get the 0.1. version .exe to work.? I am on a win 10. machine. Is thisa linux .exe?? the other two version unload and install and work well w10 no.I tried to unload the zip file
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bill wright
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#3750
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Re: Quick Tips for New Users
Hi Kurt, Thank you, I look forward to your report. With regards, Bob
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GM4CID <gm4cid@...>
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#3749
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Re: NanoVNA-Saver 0.1.0
Hi Rune, thanks for the software update and for the additional features! One issue I recognized: S21 is with the previous version after calibration right on the 0 dB line and on the current version
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Norbert Kohns
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#3748
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