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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
By hwalker · #10394 ·
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
By Paul M3VUV · #10393 ·
Re: characteristic impedance
has anyone written a decent manual for the nanosaver s/w?
By Paul M3VUV · #10392 ·
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.
By Paul M3VUV · #10391 ·
Re: NanoVNA-saver and Windows 10 #nanovna-h4 #nanovna-saver
Bravo
By Gyula Molnar · #10390 ·
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
By hwalker · #10389 ·
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.
By Dave Kjellquist, WB5NHL · #10388 ·
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
By Patrick TK5EP · #10387 ·
Re: test kit
heyI have one of those cases in the garage great idea!
By k9wkj · #10386 ·
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
By Glen K4KV <glenk4kv@...> · #10385 ·
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
By Patrick TK5EP · #10384 ·
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
By Oristo · #10383 ·
Re: Recognizing NanoVNA-H4 for software
What does the info console command return? If it says H4 somewhere, why not use that?
By Larry Rothman · #10382 ·
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
By Oristo · #10381 ·
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
By Andy UA3RAW · #10380 ·
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
By roncraig1@... · #10379 ·
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.
By Kurt Poulsen · #10378 ·
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
By netwtek@... · #10377 ·
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
By Larry Rothman · #10376 ·
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
By Rune Broberg · #10375 ·