Re: F.S. Common Mode test fixture
Email sent to QRZ address.
John K0JHL
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John Leach K0JHL
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#39252
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Re: test board, how to use
A rule that has worked well for me is that attempting to emulate short direct connections with anything else will not work out above 50 MHz.
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Bruce Akhurst
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#39251
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Re: test board, how to use
Roger,
If you look closely at the SDR board, you will see that it has the same connections as the Nano board. The top row and bottom two rows are connected to ground, which you would need to build
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tgerbic
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#39250
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Locked
Re: Owen Duffys blog closed
Yes, on archive.org, different capture dates capture different pages. So 'just' browse different dates until you find what you want!Sent from my Galaxy
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Andrew Love
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#39249
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Locked
Re: Owen Duffys blog closed
Some blogs work (including the enlarged images), some don't, is my experience.
There is still a lot to read.
Regards,
Kees, PE0CWK
Op 29-1-2025 om 18:09 schreef Steve, N5TIN via groups.io:
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PE0CWK
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#39248
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Locked
Re: Owen Duffys blog closed
Unless I¡¯m missing something the ¡°continue reading¡± links on the abbreviated blog entries are not archived, and go nowhere except an error page. Neither are the images.
From a practical
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Steve, N5TIN
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#39247
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Locked
Re: Owen Duffys blog closed
In case you are interested the way back machine has archived content from
owenduffy.net. This appears to be the last time they were able to
successfully get new content from the site. I was not
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Roger Weiss (K9RJW)
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#39246
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F.S. Common Mode test fixture
I built this fixture some time ago. It makes measuring chokes, baluns and ununs common mode very simple. The SOL(T) CAL loads are built onto the PCB.
My interest in common mode reduction now lies in
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Dale Parfitt
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#39245
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Locked
Re: Owen Duffys blog closed
There has been some discussion of this here in VK1 land and at least one
local is trying to convince Owen to pass the baton to someone else, but for
now it seems that the Internet Archive may well be
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mike.carden
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#39244
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Locked
Re: Owen Duffys blog closed
That is hilarious!!!
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Tom KG3V
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#39243
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Re: test board, how to use
Thanks for that. I have one of those boards, have started to solder the sockets but didn't get the whole way through the process. I didn't get the resistors mentioned in the pdf, but not a big
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Roy J. Tellason, Sr.
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#39242
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Locked
Re: Owen Duffys blog closed
As my friend Tom (SK) use to tell me 80% of what you read about antennas on the internet is BS. Only trust information written by the Brits. I guess I would include articles, studies by
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Ray W8LYJ
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#39241
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Locked
Re: Owen Duffys blog closed
Rick,
I agree with your comment. Owen Duffy has the copyright to all material he created on his site. The Wayback machine may have scraped it but that does not affect his copyright.
Anyone
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Roger Need
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#39240
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Locked
Re: Owen Duffys blog closed
I sorry to say Owen has responded with the following.
"Hello Mikek,
Thanks for your kind words.
I have made a decision to close the site.
There are a lot of factors at play, but essentially I
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Mikek
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#39239
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Locked
Re: Owen Duffys blog closed
I sent an email to a good address as of 12-2024 telling him about this discussion and asking if someone else could host the site.
Hosting is not something I can do, but I would make a donation if/when
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Mikek
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#39238
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Locked
Re: Owen Duffys blog closed
As far as I know, he¡¯s still alive. Just took down his web content.
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Jim Lux
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#39237
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Locked
Re: Owen Duffys blog closed
Actually he has...? Look at the last entry in the wayback machine...? I saw something there, but can no longer locate it... It was the last entry...
73, and thanks,
Dave
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Dave (NK7Z)
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#39236
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Locked
Re: Owen Duffys blog closed
I agree that a resource like Owen Duffy's should be preserved. Here's what he called "The fine print" on his blog. Note the next-to-last line about copyright.
"The fine print
The information
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Doug Constance - W6DDC
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#39235
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Locked
Re: Owen Duffys blog closed
Agreed. Does anyone know how to get in touch with Owen Duffy or his estate? we should get permission before contributing any data.
Mike N2MS
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Mike N2MS
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#39234
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Locked
Re: Owen Duffys blog closed
If anyone is willing to do the work, please raise your hand. Obvious first step is to get his permission. In that context of a contact, if here wants to just get out of supporting the site, I am
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Lester Veenstra
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#39233
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