Re: Nano VNA SAVER graphs of a 40m loop antenna
I have a 40m 144' horizontal loop also at about 20'. It is a right triangle. The pointy end is due east and is a little lower. I feed it with BalunDesigns 1:1 balun and then about 55 feet of 450-ohm
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Dan Halbert (KB1RT)
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#33765
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Re: VNA buying aid
I like my SAA-2N, it is the one I generally reach for in the shack. It works fine with external programs or standalone, updates work fine, and I like the type N connectors, as my shack is mostly type
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Donald S Brant Jr
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#33764
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Re: VNA buying aid
I don't see much mention of the SAA-2N v2.2 Does everyone recommend the H4 over the SAA-2N? The price difference is not of concern I am more concerned about functionality and support. Brian W1BKW
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Brian Wall
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#33763
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Re: VNA buying aid
What ever you buy, I'd recommend using its "official shop". There are links on the homepage.
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Leif M
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#33762
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Re: VNA buying aid
I would strongly recommend buying from R&L Electronics. You won't get a clone from them!! Here is the link to them for the NANOVNA-H4:
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W0LEV
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#33761
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Re: VNA buying aid
Nanovna-H4 is a great basic vna, if you don't need multiple GHz frequencies. It runs the latest firmware and is actively supported. And you should be able to get one for less than $100
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Stan Dye
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#33760
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Re: Nano VNA SAVER graphs of a 40m loop antenna
Hi Jim. Thanks for the reply. The answer is simple. Convenient! A pair of trees are there, about 100 feet apart and between them, nothing. No balun used. The ends of the dipole are away from each tree
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alan victor
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#33759
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Re: VNA buying aid
Have you checked the homepage(s). Like https://nanorfe.com/ and https://nanorfe.com/nanovna-versions.html I can recommend V2 Plus4 Pro V2.4, it costs 299$ plus 18650 battery. But today I would try to
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Leif M
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#33758
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Re: Nano VNA SAVER graphs of a 40m loop antenna
Hello Alan Did you start with some ideal calculated length for 7.05 MHz, set the dipole at 7 feet high and then trim the length for best return loss? Or perhaps put up precut wire for a higher
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Jim
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#33757
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Re: Screen replacement?
I know this is old but thank you so much for posting that link about the larger screen job. That guy did an amazing job and it was enjoyable to scroll through Good day !
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Brandon Parker <bmanthug@...>
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#33756
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Re: FW flashing with STM32CubeProgrammer
#firmware
#flashing
#macos
#nanovna
#nanovna-h
I am doing something wrong. I uploaded bin file of memory to my computer (NanoVNA.H.v1.1.00FromVanoVNA.bin). If I compare what I saved to my computer to memory, I get a match. I then downlodaed from
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Peter (WB3IZU)
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#33755
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Re: VNA buying aid
NanoVNA-H4 NanoVNA v2 Plus4 Istvaan
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Istv¨¢n
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#33754
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Re: Is a negative Offset Delay in ps ok?
Hi Stan and others, Thanks for the reply. Based upon my photos from earlier in the thread does a negative offset delay seem reasonable. It doesn't to me, but my experience is limited. Best, Chris
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CD
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#33753
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VNA buying aid
Hi, I like to replace my first edition NanoVNA with a newer, read better one. Can you advise me a good model that runs with the Nanovna-saver program and does not break the bank? 73' Ron ON2RON
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Ron Liekens
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#33752
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Re: Is a negative Offset Delay in ps ok?
Normally you try to calibrate at the reference plane where you want to take the measurements, and the delay is set to 0. The e-delay is a method of adjusting the position of the reference plane before
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Stan Dye
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#33751
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Re: Is a negative Offset Delay in ps ok?
Hello Robin. Thanks for the response. The F-F adapter 15mm long. It was replaced with about 50mm of transmission line in the form of a female SMA with 50 ohm coax cable. My question is about using a
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CD
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#33750
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Re: Is a negative Offset Delay in ps ok?
Christopher, in air¡ªstrictly vacuum¡ª205 ps is equivalent to about 60 mm, which is not so far off the length of the F-F adapter that you had removed. The numbers, when all is going well, tend not
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G8DQX list
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#33749
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Re: NanoVNA App - Installation and Use
#applications
You need to use Device manager to see if a COM port is active for your NanoVNA. If it isn't there you need to get it installed somehow. The method depends on which OS you are using. Once you can
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Roger Need
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#33748
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Is a negative Offset Delay in ps ok?
Hello, I SOL calibrated my NanoVNA using a 30cm cable + F to F SMA coupler and the SOL end pieces. I removed the coupler and attached the 30cm cable to a ~5cm 50 ohm coax cable soldered to the input
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CD
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#33747
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Re: The NanoVNA has an app?
There are two Android apps for updating FW on the TinySA'S and NanoVNA H and H4's. 1- StmDfuUsb 2- StmDfuBlue for those who have installed bluetooth modual. Both will install dfu, bin or hex files.
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Clyde Lambert
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#33746
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