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Locked Re: Owen Duffys blog closed

 

Thank you!

73, and thanks,
Dave (NK7Z)

ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 1/31/25 07:41, Dave Daniel via groups.io wrote:
Please *do not* publicly post derogatory comments about other members.
Doing do will get you placed on moderation or banned from the group.
Publicly referring to another
member as "a jerk" is derogatory, in case that is not clear.

DaveD
KC0WJN


On Fri, Jan 31, 2025 at 10:01 Shawn Rutledge K7IHZ via groups.io <social=
[email protected]> wrote:

On Jan 30, 2025, at 18:06, dougconstance via groups.io <dougconstance=
[email protected]> wrote:
Just a thought here on the off-chance that Mr. Duffy might change his
mind about having his material preserved:
If Mr. Duffy's material remains static (no new material is posted by
him), then preserving the material on a website does not make sense
monetarily or administratively. A hosting fee would have to be supported
for some indeterminate period, and someone would have to manage such a
website to keep it current with changes in PHP, Wordpress, etc.

People always seem to overestimate that. Plain web hosting doesn¡¯t cost
much. I¡¯ve had my site up since the 90¡¯s, and it¡¯s not even valuable
enough to bother, TBH. I keep thinking I should add a lot more. I don¡¯t
mind hosting other things in the space that I¡¯m already paying for, as long
as it¡¯s not going to be contentious to do so.

And that¡¯s not even the only way! Some day we will have true peer-to-peer
web hosting, so that I share from my home internet connection and it gets
mirrored automatically by a lot of other people who have read it, got
interested, and want to help share it. This is what I thought the
ipfs.tech project was all about, for example, and indeed it can be used for
that; but it also seems to have gone in a more commercial direction, with
the expectation that most people will pay for hosting their content after
all. And the naming problem continues to be kindof a pain. But most of us
have broadband at home, right? Way more than enough bandwidth to share
some small-scale content with a few thousand friends, as long as they don¡¯t
all visit at the same time. So the expectation that hosting costs
something extra is just rent-seeking, a result of short-sighted
architecture of the web as we know it. And the expectation that it¡¯s ok to
publish something valuable and then change your mind and make it all
disappear in an instant, is also really bonkers, IMO. When we published on
paper, it was impossible. archive.org <> is right to
grab everything they can for as long as they can, so that nothing really
disappears; but yeah it¡¯s often an incomplete archive. They could be doing
it a bit better; and it would be easier if more people were publishing
static pages rather than depending on php and databases and JS.

Too bad Mr. Duffy is apparently being a jerk about it. Somebody must have
made him mad in some way, for him to react like that.
Locked Re: Owen Duffys blog closed

 

On Fri, Jan 31, 2025 at 08:01 AM, Shawn Rutledge K7IHZ wrote:

Too bad Mr. Duffy is apparently being a jerk about it. Somebody must have made him mad in some way, for him to react like that.

This comment is just plain wrong. All of us can choose what happens to the material we personally create. Asking for reconsideration is fine but there's no need to disparage someone over it.
Locked Re: Owen Duffys blog closed

 

Please *do not* publicly post derogatory comments about other members.
Doing do will get you placed on moderation or banned from the group.
Publicly referring to another
member as "a jerk" is derogatory, in case that is not clear.

DaveD
KC0WJN


On Fri, Jan 31, 2025 at 10:01 Shawn Rutledge K7IHZ via groups.io <social=
[email protected]> wrote:


On Jan 30, 2025, at 18:06, dougconstance via groups.io <dougconstance=
[email protected]> wrote:

Just a thought here on the off-chance that Mr. Duffy might change his
mind about having his material preserved:

If Mr. Duffy's material remains static (no new material is posted by
him), then preserving the material on a website does not make sense
monetarily or administratively. A hosting fee would have to be supported
for some indeterminate period, and someone would have to manage such a
website to keep it current with changes in PHP, Wordpress, etc.

People always seem to overestimate that. Plain web hosting doesn¡¯t cost
much. I¡¯ve had my site up since the 90¡¯s, and it¡¯s not even valuable
enough to bother, TBH. I keep thinking I should add a lot more. I don¡¯t
mind hosting other things in the space that I¡¯m already paying for, as long
as it¡¯s not going to be contentious to do so.

And that¡¯s not even the only way! Some day we will have true peer-to-peer
web hosting, so that I share from my home internet connection and it gets
mirrored automatically by a lot of other people who have read it, got
interested, and want to help share it. This is what I thought the
ipfs.tech project was all about, for example, and indeed it can be used for
that; but it also seems to have gone in a more commercial direction, with
the expectation that most people will pay for hosting their content after
all. And the naming problem continues to be kindof a pain. But most of us
have broadband at home, right? Way more than enough bandwidth to share
some small-scale content with a few thousand friends, as long as they don¡¯t
all visit at the same time. So the expectation that hosting costs
something extra is just rent-seeking, a result of short-sighted
architecture of the web as we know it. And the expectation that it¡¯s ok to
publish something valuable and then change your mind and make it all
disappear in an instant, is also really bonkers, IMO. When we published on
paper, it was impossible. archive.org <> is right to
grab everything they can for as long as they can, so that nothing really
disappears; but yeah it¡¯s often an incomplete archive. They could be doing
it a bit better; and it would be easier if more people were publishing
static pages rather than depending on php and databases and JS.

Too bad Mr. Duffy is apparently being a jerk about it. Somebody must have
made him mad in some way, for him to react like that.
Locked Re: Owen Duffys blog closed

 

On Jan 30, 2025, at 18:06, dougconstance via groups.io <dougconstance@...> wrote:

Just a thought here on the off-chance that Mr. Duffy might change his mind about having his material preserved:

If Mr. Duffy's material remains static (no new material is posted by him), then preserving the material on a website does not make sense monetarily or administratively. A hosting fee would have to be supported for some indeterminate period, and someone would have to manage such a website to keep it current with changes in PHP, Wordpress, etc.
People always seem to overestimate that. Plain web hosting doesn¡¯t cost much. I¡¯ve had my site up since the 90¡¯s, and it¡¯s not even valuable enough to bother, TBH. I keep thinking I should add a lot more. I don¡¯t mind hosting other things in the space that I¡¯m already paying for, as long as it¡¯s not going to be contentious to do so.

And that¡¯s not even the only way! Some day we will have true peer-to-peer web hosting, so that I share from my home internet connection and it gets mirrored automatically by a lot of other people who have read it, got interested, and want to help share it. This is what I thought the ipfs.tech project was all about, for example, and indeed it can be used for that; but it also seems to have gone in a more commercial direction, with the expectation that most people will pay for hosting their content after all. And the naming problem continues to be kindof a pain. But most of us have broadband at home, right? Way more than enough bandwidth to share some small-scale content with a few thousand friends, as long as they don¡¯t all visit at the same time. So the expectation that hosting costs something extra is just rent-seeking, a result of short-sighted architecture of the web as we know it. And the expectation that it¡¯s ok to publish something valuable and then change your mind and make it all disappear in an instant, is also really bonkers, IMO. When we published on paper, it was impossible. archive.org <> is right to grab everything they can for as long as they can, so that nothing really disappears; but yeah it¡¯s often an incomplete archive. They could be doing it a bit better; and it would be easier if more people were publishing static pages rather than depending on php and databases and JS.

Too bad Mr. Duffy is apparently being a jerk about it. Somebody must have made him mad in some way, for him to react like that.
Re: F.S. Common Mode test fixture

 

Interesting test fixture. Didn't know it existed.

I did it a different way..... and used a clamp on RF ammeter around the coax to measure CM current. Of course the CM current being measured will change, depending on where on the coax, it is clamped.
Still, the measurements can be taken in several different places on the coax. ( marked with painters green tape)....using CM choke #1. Then repeat, using CM choke #2. This also assumes the same power from the XCVR of linear amplifier is being applied. You will know asap, on the freqs being measured, whether CM choke #1 is better / worse then CM choke #2...( or CM choke #3/4/5 etc.
Locked Re: Owen Duffys blog closed

 

On Fri, Jan 31, 2025 at 06:49 AM, Fred_M wrote:


In Mr. Duffy's blog articles are frequently links to previous or related
articles and embedded online calculator applets. A pdf backup cannot replace
those.
It would really be a great gift to the community, if Mr. Duffy would change
his mind and leave his content available.
## agreed. He should just leave the existing content readily available. Just don't add any more material.
Locked Re: Owen Duffys blog closed

 

On Thu, Jan 30, 2025 at 05:06 PM, <dougconstance@...> wrote:


A more appropriate means of preserving static material would be to perform a
website-to-pdf conversion.
In Mr. Duffy's blog articles are frequently links to previous or related articles and embedded online calculator applets. A pdf backup cannot replace those.
It would really be a great gift to the communicty, if Mr. Duffy would change his mind and leave his content available.

regards
Fred
Locked Re: Owen Duffys blog closed

 

Just a thought here on the off-chance that Mr. Duffy might change his mind about having his material preserved:

If Mr. Duffy's material remains static (no new material is posted by him), then preserving the material on a website does not make sense monetarily or administratively. A hosting fee would have to be supported for some indeterminate period, and someone would have to manage such a website to keep it current with changes in PHP, Wordpress, etc.

A more appropriate means of preserving static material would be to perform a website-to-pdf conversion. Blogbooker is one tool for doing this. I've not used it, so cannot opine on its utility. Mr. Duffy's approval and participation would be necessary to make any such tool useful. If such a pdf could be generated, it could be archived in this group's Files section.
Locked Re: Owen Duffys blog closed

 

lester,

It is good you included all your contact information, thus making a lot simpler for the take down order to be sent to you, when you violate both the author's wishes, and copyright law...

73,
Dave,

On 1/30/25 08:12, Lester Veenstra via groups.io wrote:
He apparently has refused but I still stand by my offer to host any revovered material

Lester B Veenstra K1YCM M?YCM W8YCM 6Y6Y W8YCM/6Y 6Y8LV (Reformed USNSG CTM1)
lester@...

452 Stable Ln
Keyser WV 26726 USA

GPS: 39.336826 N 78.982287 W (Google)
GPS: 39.33682 N 78.9823741 W (GPSDO)


Telephones:
Home: +1-304-289-6057
US cell +1-304-790-9192
Jamaica cell: +1-876-456-8898

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Mike C.
Sent: Thursday, January 30, 2025 10:48 AM
To: [email protected]
Subject: Re: [nanovna-users] Owen Duffys blog closed

Has anyone considered fully copying "ALL" the website material if only
for preservation sake for future use? Loss of material like this is
absolutely PRICELESS, to say the least. I am a retired technician and
not a ham but browsing some of the articles would take one to
information once lost will be sad for sure.

I don't know or have ever heard of Mr. Duffy until recently but you'd
think somebody would take the lead and at least contact him for his
permission, maybe !!!

Mike C. Sand Mtn GA




1/29/2025 5:15 PM, Andrew Love via groups.io wrote:
Yes, on archive.org, different capture dates capture different pages. So 'just' browse <snip>
Locked Re: Owen Duffys blog closed

 

He apparently has refused but I still stand by my offer to host any revovered material

Lester B Veenstra K1YCM M?YCM W8YCM 6Y6Y W8YCM/6Y 6Y8LV (Reformed USNSG CTM1)
lester@...

452 Stable Ln
Keyser WV 26726 USA

GPS: 39.336826 N 78.982287 W (Google)
GPS: 39.33682 N 78.9823741 W (GPSDO)


Telephones:
Home: +1-304-289-6057
US cell +1-304-790-9192
Jamaica cell: +1-876-456-8898

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Mike C.
Sent: Thursday, January 30, 2025 10:48 AM
To: [email protected]
Subject: Re: [nanovna-users] Owen Duffys blog closed

Has anyone considered fully copying "ALL" the website material if only
for preservation sake for future use? Loss of material like this is
absolutely PRICELESS, to say the least. I am a retired technician and
not a ham but browsing some of the articles would take one to
information once lost will be sad for sure.

I don't know or have ever heard of Mr. Duffy until recently but you'd
think somebody would take the lead and at least contact him for his
permission, maybe !!!

Mike C. Sand Mtn GA




1/29/2025 5:15 PM, Andrew Love via groups.io wrote:
Yes, on archive.org, different capture dates capture different pages. So 'just' browse <snip>
Locked Re: Owen Duffys blog closed

 

OK, guys. Please read the messages in this topic before posting more.

Someone already did contact Owen, and his reply was that he is not making the information available for re-posting, for several reasons.

Yes, it is very sad. Owen provided an amazing resource that benefited many of us.

But we must respect his wishes, his privacy, and his copyright.

Stan KC7XE
Locked Re: Owen Duffys blog closed

 

Has anyone considered fully copying "ALL" the website material if only
for preservation sake for future use? Loss of material like this is
absolutely PRICELESS, to say the least. I am a retired technician and
not a ham but browsing some of the articles would take one to
information once lost will be sad for sure.

I don't know or have ever heard of Mr. Duffy until recently but you'd
think somebody would take the lead and at least contact him for his
permission, maybe !!!

Mike C. Sand Mtn GA




?1/29/2025 5:15 PM, Andrew Love via groups.io wrote:

Yes, on archive.org, different capture dates capture different pages. So 'just' browse <snip>
Re: F.S. Common Mode test fixture

 

On Wed, Jan 29, 2025 at 08:36 AM, Dale Parfitt wrote:


W4OP
Email sent to QRZ address.
John K0JHL
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.
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 some of these test circuits. Wiring examples are done the same for both boards.
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

-------- Original message --------From: "PE0CWK via groups.io" <pe0cwk@...> Date: 30/1/25 8:03?am (GMT+10:00) To: [email protected] Subject: Re: [nanovna-users] 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, PE0CWKOp 29-1-2025 om 18:09 schreef Steve, N5TIN via groups.io:> 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 standpoint, the archive is not very useful for this site.>> Steve> N5TIN>>>> On Jan 29, 2025, at 9:39?AM, Roger Weiss (K9RJW) via groups.io <roger.weiss@...> wrote:>>>> ?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 aware of this site>> ands it appears to be a great loss to the community.>> >>>> Regards,>> Roger>>>>> On Mon, Jan 27, 2025 at 10:47?AM Fred_M via groups.io <dl4zao=>>> [email protected]> wrote:>>>>>> Sad news:>>>>>> >>> (mostly electronics) is no longer available.>>>>>> regards>>> Fred>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>
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:

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 standpoint, the archive is not very useful for this site.
Steve
N5TIN


On Jan 29, 2025, at 9:39?AM, Roger Weiss (K9RJW) via groups.io <roger.weiss@...> wrote:

?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 aware of this site
ands it appears to be a great loss to the community.


Regards,
Roger

On Mon, Jan 27, 2025 at 10:47?AM Fred_M via groups.io <dl4zao=
[email protected]> wrote:

Sad news:


(mostly electronics) is no longer available.

regards
Fred
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 standpoint, the archive is not very useful for this site.

Steve
N5TIN

On Jan 29, 2025, at 9:39?AM, Roger Weiss (K9RJW) via groups.io <roger.weiss@...> wrote:

?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 aware of this site
ands it appears to be a great loss to the community.


Regards,
Roger

On Mon, Jan 27, 2025 at 10:47?AM Fred_M via groups.io <dl4zao=
[email protected]> wrote:

Sad news:


(mostly electronics) is no longer available.

regards
Fred
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 aware of this site
ands it appears to be a great loss to the community.


Regards,
Roger

On Mon, Jan 27, 2025 at 10:47?AM Fred_M via groups.io <dl4zao=
[email protected]> wrote:

Sad news:


(mostly electronics) is no longer available.

regards
Fred
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 VHF and UHF where this jig will not function because of lead lengths. All mounting hardware (except the banana sockets) has been replaced with stainless steel.

$50 includes USPS shipping in the USA.

Regards,
Dale W4OP
901 - 920 of 39423