Calibrating to a long coax?
#applications
#calibration
#measurement
If I connect the NanoVNA-H to a length of coax (about 20m of RG-11/U in this case) and perform an SOL calibration through the coax, will the NanoVNA then show me the feed point characteristics of the
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Neil Preston W0NRP
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#13596
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Re: Trouble buying from China
Update from Mike, K0JTA: Picked up and processed May 6 in Hong Kong via DHL, and is now in "CINCINNATI HUB, OH - USA" at this time!!! -Looks as if I will have the shipment in hand VERY soon, unless
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Mike K0JTA
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#13595
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Re: Are any of the NanoVNA sold on Amazon any better or worse than any others? Is there a better U.S. site to order from?
How about the rampant misuse of "your" and "you're"? ---? Ciao baby, catch you on the flip side ?? 73 de W3AB/GEO ??? http://www.w3ab.org You can say "over", you can say "out", you just can't
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GEO BADGER
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#13594
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Re: NanoVNA firmvare, compiled by DiSlord
#firmware
On Mon, May 18, 2020 at 12:09 PM, DiSlord wrote: ...Add Brightness setting to config menu. Now for set Brightness need select Config->Brightness and use leveler button Left or Right for adjust it. On
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hwalker
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#13593
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Re: Are any of the NanoVNA sold on Amazon any better or worse than any others? Is there a better U.S. site to order from?
What's a Grocer's Apostrophe? (humor) https://suewardell.com/2019/12/21/whats-in-a-name-and-the-grocers-apostrophe-what-do-you-think-dear-reader/ -- 73 de Rich NE1EE On the banks of the Piscataqua
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Rich NE1EE
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#13592
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Re: Are any of the NanoVNA sold on Amazon any better or worse than any others? Is there a better U.S. site to order from?
I purchased mine from https://www.alibaba.com/product-detail/Original-Hugen-NanoVNA-H4-4-0_62455845943.html as suggested by members of the microwave group I'm a member of. Delivery was less than a
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GEO BADGER
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#13591
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Re: Are any of the NanoVNA sold on Amazon any better or worse than any others? Is there a better U.S. site to order from?
R&L said that there may be H4's stock this week! randy.ab9go@... This message sent to you from my mobile device via speech-to-text technology.
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Randy.AB9GO
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#13590
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Re: NanoVNA firmvare, compiled by DiSlord
#firmware
I also always upload last stable version of my firmware to: /g/nanovna-users/files/Dislord%27s%20Nanovna%20-H%20Firmware Last NanoVNA-H is v0.8.4.5 at Apr 30 I not update H variant
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DiSlord
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#13589
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Re: NanoVNA firmvare, compiled by DiSlord
#firmware
Added Wiki links: /g/nanovna-users/wiki#Sources .. for -H and -H4 dfu appends, as well as H4 Hardware.py The most recent NanoVNA-H found was from Apr 30..? Those links will need
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Oristo
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#13588
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Re: nanovna cases
#enclosure
I use standart case for NanoVNA-H and iPhone 5s battery on 1560mAh (height 3.5mm) many phone battery have height 3-3.5mm and can be put in this case.
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DiSlord
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#13587
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Re: nanovna cases
#enclosure
On 5/18/2020 3:22 AM, M Craig Leftwich wrote: > I wanted to add a larger capacity battery to my NanoVNA and protect it from getting damaged, so housed my device in an enclosure from Standard Supply
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Dale Miller - KC2CBD
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#13586
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Re: nanovna cases
#enclosure
Here's one I got from an Ebay seller name Rexroillc.? It was $12.99 I've seen an enclosure a fellow ham friend has that has his callsign on it.? I don't know where he got it though. 73 Stan KM4HQE
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Stan Gammons
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#13585
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Re: Trouble buying from China
it's not just China. I ordered something in April from an individual in Brisbane, Australia. He gave it to their Postal Service for express air, and it sat "awaiting departure" for a solid month.
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Timothy Buchanan
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#13584
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Re: Trouble buying from China
If the item shipped via Hong Kong, which a lot do, highly likely the hold up is there. One of the postal options seems to be it has no priority and will get put on a plane if there's space. Often this
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stevepilotltd
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#13583
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Re: NanoVNA firmvare, compiled by DiSlord
#firmware
Next H4 update: Cleanup ADC code (used for touch screen and battery measure). Reduce touch press check from 1kHz to 20Hz and set touch press ADC time to 1 tick (it allow little more reduce measure
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DiSlord
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#13582
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Re: Are any of the NanoVNA sold on Amazon any better or worse than any others? Is there a better U.S. site to order from?
R&L. Still $59.95 for the H4 but out of stock, http://www.randl.com/shop/catalog/product_info.php?cPath=15_8620&products_id=75145 The H is in stock for $49.95
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Vince Vielhaber <vev@...>
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#13581
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Re: Are any of the NanoVNA sold on Amazon any better or worse than any others? Is there a better U.S. site to order from?
i got my from Amazon it the new one comes with battery, Its working great and i got it in less than a week, if you need a link let me know.
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englishwalt99@...
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#13580
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Re: nanovna cases
#enclosure
There are several great case designs for the smaller NanoVNA for 3D printers on Thingiverse. I printed one and it fits like a glove. There are several designs for building cases that protect the
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Jim Parks <jim.ny0j@...>
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#13579
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Re: Nanovna vs Antenna Analyzer
Mark, If you are just measuring SWR on HF antennas you can do the calibration from 1 to 30 MHz. on the CH0 SMA connector and store it in one of the memory slots 1-4. Then just recall it after powering
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Roger Need
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#13578
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Re: Trouble buying from China
Ordered the NanoVNA-H 4 from Amazon on 5/14, shipped on 5/15, arrived 5/16. Now I just have to figure out what to do with it. Michael WA7SKG Arnie Merrick via groups.io wrote on 5/18/20 9:56 AM:
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Michael WA7SKG <wa7skg@...>
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#13577
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