Re: I added copper shields and it didn't turn out as expected ...
QRP RX, There is no easy way (impossible) to make two sections under the larger shield and have any sort of continuous solder line to the board, so perhaps I'll just take it off. I'll take your other
By
Mike_nano
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#5403
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Re: I added copper shields and it didn't turn out as expected ...
Question: If the NanoVNA is used only for HF, are the shields necessary?
By
W5DXP <w5dxp@...>
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#5402
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Re: Newbie
You could do what I did when I got my Nano back in June - use a very thin cellphone battery.It's perfectly safe and there are a couple of photos in the photo section of the forum:
By
Larry Rothman
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#5401
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Re: Newbie
Excellent information. Thanks for taking the time to provide this information. Tom Stiles
By
hamrad45
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#5400
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Re: Saving multiple Cal data
Hi Nan - Thanks for heads up; I was unaware of any differences, other than between two ("AA") and four trace versions. Unlike commercial software and firmware, open source developers typically do not
By
Oristo
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#5399
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Re: Who has used the nanoVNA wiki to find information?
#wiki
I surely did.. BR-Nan-vk2krn
By
Nan
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#5398
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Re: Saving multiple Cal data
Thanks to all for your responses. The "Reset" menu option got me very confused but its clearer now. For example, Recall 1 and Reset only clears Register 1 and not "ALL" Cal data as I originally
By
Nan
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#5397
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Re: Who has used the nanoVNA wiki to find information?
#wiki
Me too. -- Regards, Martin - G8JNJ
By
Martin
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#5396
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Re: errors of "error" models
#66: Public Invitation : #66 Hello, Allow us, please, to generally express our clear point of view on these extraordinary stupid demands expressed by impotent members of this group, by addressing in
By
gin&pez@arg
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#5395
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Re: Measuring ferrite beads
#test-jig
Hi Jim There is no substitute to hard work. Besides I have a Magic Wand ? Kind regards Kurt -----Oprindelig meddelelse----- Fra: [email protected] <[email protected]> P? vegne af
By
Kurt Poulsen
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#5394
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Re: I added copper shields and it didn't turn out as expected ...
Also it seems that this PCB layout is not good. Because it don't allow to place shield edge on safe distance from c26, c27. Also it looks that there is impedance problem with wire to SMA connector.
By
QRP RX
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#5393
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Re: I added copper shields and it didn't turn out as expected ...
ideald shield should be soldered with no gap. Because any gap leads to ground loop. Longer gap leads to higher noise. Did you see these through holes on the pcb ground? These holes are named "vias",
By
QRP RX
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#5392
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Re: I added copper shields and it didn't turn out as expected ...
yes, you did it wrong. There are two problems with your shields: 1) You're forgot to solder left top corner of shield. The distance to the ground is long, so the shield works as loop antenna and
By
QRP RX
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#5391
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Re: Measuring ferrite beads
#test-jig
Kurt, Just read your comment above. I think you said it works by Magic, Which I believe. I will have to get a bit of experimenting experience before I try ferrite beads I think. Jim, KA6TPR
By
Starsekr
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#5390
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Re: Who has used the nanoVNA wiki to find information?
#wiki
i did
By
Starsekr
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#5389
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Re: Newbie
if you search on the term battery size you will get a lot of information. But here is one post: |kf7dur | |Sep 5 #1870 ? | | |Karl, | |I used a 602040 450mAH (5x20x31.5mm) battery in my Banggood
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Starsekr
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#5388
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Re: NanoVNA-Saver 0.1.3
Hi Bryan, I haven't tried the 0.3.0 firmware yet. Looking at the (sparse) release notes, it's not obvious that there would be anything there that changes how NanoVNA-Saver interfaces with it. I'll see
By
Rune Broberg
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#5387
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Re: NanoVNA-Saver 0.1.3
Rune, I have been using several new features in nanoVNA-Saver 0.1.3 and think that they are great additions. I am trying to use edy555 firmware version 0.3.0 with nanoVNA-Saver version 0.1.3. There
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Bryan, WA5VAH
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#5386
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Re: Authorized Distributor with 6mo Warranty?
I found it on Amazon. I don't know where else you might find it. 73 de K9GXC, Jim
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Jim Potter
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#5385
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Re: Authorized Distributor with 6mo Warranty?
Here is a link to the one I purchased: https://smile.amazon.com/gp/aw/d/B07T6LXNTV?psc=1&ref=ppx_pop_mob_b_asin_title Marco
By
M Garza <mgarza896@...>
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#5384
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