Re: characteristic impedance
On Tue, Jan 28, 2020 at 07:48 AM, <nanovnauser@...> wrote: has anyone written a decent manual for the nanosaver s/w? ======================================================= Probably the best
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hwalker
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#10394
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iffy readings for swr
Hi all,ive a antenna consisting of 2 80m mobile whips in a dipole configuration as i dont have room for anything else,i get different readings on both my analysers,the antenna is at the end of a 60ft
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Paul M3VUV
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#10393
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Re: characteristic impedance
has anyone written a decent manual for the nanosaver s/w?
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Paul M3VUV
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#10392
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Re: test kit
this is what i used for a case,3.2 inch screen too.,just waiting for a 90 degree usb c adaptor to arrive.
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Paul M3VUV
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#10391
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Re: NanoVNA-saver and Windows 10
#nanovna-h4
#nanovna-saver
Bravo
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Gyula Molnar
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#10390
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Re: Recognizing NanoVNA-H4 for software
On Tue, Jan 28, 2020 at 07:04 AM, Larry Rothman wrote: What does the info console command return? If it says H4 somewhere, why not use that? ================================================ The info
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hwalker
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#10389
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Re: test kit
I have adapted a $5 case (don't forget your 20% off coupon) from Harbor Freight for carrying the nanovna. The removable storage bins provide good places for connectors etc.
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Dave Kjellquist, WB5NHL
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#10388
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Re: NanoVNA-saver and Windows 10
#nanovna-h4
#nanovna-saver
I followed the advice to remove the drivers from USBdeview and voila ! My NanoVNA now shows up with COM11 (COM7 before) and the communication works as predicted. Now, what other devices are not
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Patrick TK5EP
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#10387
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Re: test kit
heyI have one of those cases in the garage great idea!
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k9wkj
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#10386
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test kit
Hello, Thought you might get a kick out of this: I bought a microphone and got a hard plastic, foam-lined case with it.? Makes a good home for the Nano. In the kit: two RG316 cables Calibration
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Glen K4KV <glenk4kv@...>
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#10385
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Re: NanoVNA-saver and Windows 10
#nanovna-h4
#nanovna-saver
I'm getting exactly the same results after trying the same configurations and tests.... I don't have another USB5 cable to try.. Will try on another computer. I have a NanoVNA-H sw version0.4.0-3
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Patrick TK5EP
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#10384
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Re: NanoVNA-saver and Windows 10
#nanovna-h4
#nanovna-saver
Correct COM port, but the wrong driver. Delete that and hope that Microsoft's USB Serial Device driver gets loaded subsequently: C:\WINDOWS\system32\DRIVERS\usbser.sy
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Oristo
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#10383
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Re: Recognizing NanoVNA-H4 for software
What does the info console command return? If it says H4 somewhere, why not use that?
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Larry Rothman
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#10382
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Re: Recognizing NanoVNA-H4 for software
Hi Rune - I just hacked my Perl script to handle this by brute force, namely: keep reading into a buffer until len(buffer) does not increase, then use that accumulated buffer length to sort screen
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Oristo
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#10381
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Re: Improving the performance of a pre-V3.4 original Hugen nanoVNA
Hi, dear friends! Made modifications of my NanoVNA-H rev.3.3 today. Resistors values were changed according to rev.3.4 schematic. Also added some capacitors. A trick. The resistors were soldered
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Andy UA3RAW
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#10380
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Re: characteristic impedance
Shorted end is generally better then open end. Open end has some stray field leakage which is equivalent to a couple tenths of pF depending on cable type. Doesn't matter much at VHF and below freqs
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roncraig1@...
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#10379
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Re: Calibration settings for NanoVNA-saver using SDR-Kits BNC calibration kit
Hi Lajos Just read this document. It contain all the answers. Copy the link text and paste it into a browser URL line. The link will probably not survive ? I have tested it and it works.
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Kurt Poulsen
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#10378
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Re: NanoVNA-saver and Windows 10
#nanovna-h4
#nanovna-saver
Gyula and Oristo I installed USBDeview as per Gyula, and it shows ChibiOS/RTVirtualCOM port driver is active and loaded for COM3 (which is the correct COM port). I then tried PuTTY using the
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netwtek@...
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#10377
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Interesting VNA design articles in the HP Journal from 1984
HP Journal - 1984-11, "An Advanced 5-Hz-to-200-MHz Network Analyzer" https://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1984-11.pdf It's interesting to be able to compare block diagram and description of
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Larry Rothman
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#10376
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Recognizing NanoVNA-H4 for software
Hello everyone, I understand from some comments on this list that screenshots captured from the new 4" NanoVNA-H4 are a different size to the regular ones. As the normal NanoVNA-H does not have a
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Rune Broberg
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#10375
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