¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io
Date
Re: Cal Procedure Question
Hello Dick, No, reset is confined to the register you are working. It will clear cal data in only that register. The frequency display range you entered will stay in tact. After reset, begin the cal.
By alan victor · #5021 ·
Re: SOLT calibration vs. TRL
Very nice. You may want to post your system to the message group that is discussing test fixtures. Part of the discussion raises the query on testing devices so full 2 port data is required. I raised
By alan victor · #5020 ·
Re: Am I Fixing my BNC Calibration using Calibration Standards Adjustments in nanoVNA-Saver 0.1.2
bryburns via Groups.Io wrote: Just a different thought. I might be incorrecr here, but from what I have seen of this machine in the last half-day, not automatically "applying" means you can look
By N9KDY · #5019 ·
Re: Any ideas for test jigs?
It looks like I cant add hash tag afterwards
By Leif M · #5018 ·
Re: Am I Fixing my BNC Calibration using Calibration Standards Adjustments in nanoVNA-Saver 0.1.2
[email protected]> wrote: I would not worry about it. I was mainly making the point that measuring DC resistance to 1 milli ohm resolution is not hard with equipment most hobbyists would have. Dave
By Dr. David Kirkby from Kirkby Microwave Ltd <drkirkby@...> · #5017 ·
Re: Am I Fixing my BNC Calibration using Calibration Standards Adjustments in nanoVNA-Saver 0.1.2
Hi Bryan, it does indeed help - I will be making better input validation for that part of the interface. In fact, it's already on the list for 0.1.4. ;-) If you want to save a log file, you should use
By Rune Broberg · #5016 ·
Re: Am I Fixing my BNC Calibration using Calibration Standards Adjustments in nanoVNA-Saver 0.1.2
Rune, I have noticed that you save the "Calibration standards" information in the ".ini" file for nanoVNA-Saver. Great idea. I also observe that after loading the information from the ".ini" file you
By Bryan, WA5VAH · #5015 ·
Adapters, SMA to N and BNC.
There has been mention of the high price of SMA adapters. The standard here is N but it appeared that the package described below, that included BNC and TNC, would be the best way to go. Adapters for
By John Nightingale · #5014 ·
Re: Am I Fixing my BNC Calibration using Calibration Standards Adjustments in nanoVNA-Saver 0.1.2
Dave, You are correct. I can't measure the skin effect resistance with anything I have available. So, I am stuck with the best measurement I can make of the short I use. -- Bryan, WA5VAH
By Bryan, WA5VAH · #5013 ·
NanoVNA-Saver 0.1.3
I just released NanoVNA-Saver 0.1.3! https://github.com/mihtjel/nanovna-saver/releases/latest This release adds a couple of much requested features: Popout charts All charts can now be popped out as
By Rune Broberg · #5012 ·
Re: Any ideas for test jigs?
I've been thinking about a test jig for measuring capacitors and inductors. Ideally, this would have built in calibration modes and support all three DUT measurement configurations with the VNA.
By Steven Dick · #5011 ·
Re: Any ideas for test jigs?
Hi Sala, Some test jig ideas can be found here: https://www.kn5l.net/RfAmp/CeTf/ I found if leads are pushed into the breadboard hard enough, they will short to foil. Better to flip single sided PWB.
By John KN5L · #5010 ·
Re: Any ideas for test jigs?
"I measured a simple class A common emitter amplifier and theory and test results do not match." Beware of signal levels, especially when measuring active devices. Regards, Martin - G8JNJ
By Martin · #5009 ·
Re: Test fixtures #test-jig
I ordered these to hack: https://www.ebay.com/itm/123879478099
By Oristo · #5008 ·
Re: Test fixtures #test-jig
By the time you get the boards made and get the connectors, you have spent at least as much as Marcus is asking. He has done the research and gotten the line section correct for the board material.
By Glenn Little · #5007 ·
Re: Can't update firmware
The windows operating system needs an STMicroelectronics driver installed. 'DfuSeDemo.exe' installed for me in a folder that also includes a 'Driver' folder, in which are folders for Win7-10, in each
By Oristo · #5006 ·
Re: Any ideas for test jigs?
Can't see why it is off topic. Much of the calibration is about test jigs or extensions of the reference plane. See hash tag #test-jigs. BTW, hashtags are active in this group. BUT they can only be
By Starsekr · #5005 ·
Any ideas for test jigs?
I measured a simple class A common emitter amplifier and theory and test results do not match. So, it will be fun and interesting to measure some amplifiers. Have you ideas for test jigs What to
By Leif M · #5004 ·
Re: Another ebay deal?
There is a how-to, linked in Wiki Application Notes: http://ormpoa.altervista.org/gnuplot/ Non-interactively, after downloading the four *.p files from above: * One time only, to generate gridpoint
By Oristo · #5003 ·
Re: Just got mine. Looking it over.
Hello Gyula I also have Rune's fantastic application running on a 32 bit Windows7 machine but battled to get running on a 32bit version of Ubunu (latest LTS v18) and after a remote session with Ohan
By Nigel ZS6RN · #5002 ·