Re: Bitx40 very loud, high-pitched, low frequency noise
Thank you so much for your help Woody! I'll try to get my hand on a small ceramic cap and let you know if this resolved the problem. I'll also try to salvage the ferrite sleeve from an old cable. I'll also try to power the bitx using 8 AA batteries as a constant DC source to check if the problem is even related to the power supply. Hopefully 8 AA batteries will allow for at least a couple of minutes of RX operation.
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Re: Isolate any jacks/controls from metal chassis?
#ubitx
Used sticky back copper foil to line the plastic case on my SDRPlay. Worked well. Cleaned up some noise issues.
Jim
WA3APC
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toggle quoted message
Show quoted text
Jack, I just love educated responses that use Bullshit as an argument. What could be more reliable?
Cost of Books - See:? If, for example, you are majoring in architecture or engineering, you may need computer programs that an English or Education major won¡¯t need. The national average for this category in 2017 was $1,100, but the cost of books is soaring every year so count on it going up from 8%-10% from year-to-year.
See FRB report:??
As much as you like to flatter yourself about the high loss rate of books "stolen" via file sharing services (torrent is one type), this type of traffic is almost negligible. Most torrent type traffic is PORN content. Empirical data that I received from ISP traffic pattern analysis indicates that about 93% of the file sharing protocols (in action) carry tagged PORN data. eBook tagged data traffic is almost not measurable in the grand scheme of things.
Good luck on changing the world. Now it is a competition between your high-value books (that apparently are not going to be published, due to lack of profitability) and what people are actually consuming en mass 24/7/365.
--Ron? ? N7FTZ
On Thu, Aug 22, 2019 at 11:20 AM Jack Purdum via Groups.Io <jjpurdum= [email protected]> wrote:
On Thursday, August 22, 2019, 1:48:25 PM EDT, Dr. Flywheel < Dr.Flywheel@...> wrote:
Everyone is entitled to their own opinion. The real question is what works in real life. Here are a few points to think about for people who insist on living in a virtual world: - Many people use torrents to download books, in order to preview their content. Are you really saying that people only use torrent sites to preview books? Far and away most are using the site to get a free book and have no intention of paying for it regardless of its worth. To think otherwise is woefully naive. This is due to the fact that public libraries are limited in their ability to purchase and keep all the books in the world in their limited physical space. Do not assume that if someone downloads your book, they actually keep it forever. What difference can it possibly make whether they keep a free download book or not?
- I like previewing books prior to purchase. I also like physical books and my house is filled with them. I always purchase my books at bottom dollar, either "pre-owned" or "old stock". I use eBay, Amazon, B&N, etc for my purchase. As an author, you will not see a dime coming back to you through my purchase. However,? if you buy a used copy, at least someone bought the book and the author was paid for that copy. If you rip off a copy or someone gives you a file that contains the book, my guess is that copy has never been paid for.;
- Publishing for FREE has never stopped?me from doing just that. If you are using the Internet, if you are using an Intel-based PC, if you are using Linux, if you are using an Android smart phone, if you are using WiFi technology, than you are using code, tools, and documents that I authored and/or contributed to maintain. I have never seen a dime coming back to me for my contributions, neither do I expect remuneration or royalties for my work. All of my work, including that in the Arduino Projects book is Open Source for both the hardware and software. So, in one sense I am paid for it, but in another I receive nothing for it. You're free to write what you want and disseminate it in whatever format you wish. However, publishers expect a return on their investment and I see nothing wrong with that.
- Many publishers act as a Mafia to squeeze a significant $$ by guarding the gates to publishing and physical distribution. When I went to college, my books cost between $3 and $10 each (Dover Edition). What is the justification for charging between $100 and $300 for a book used for educating university students and then changing the book edition every year to prevent resale of books (recycling)? There are many places where students can buy used books at reasonable prices. Perhaps one reason books are so expensive at university books stores is because publishers are getting ripped off by torrent sites. It could be a chicken-egg thing.
- Limiting information flow to the public will never work in today's world. the capabilities are there to distribute and share information by electronic means. This levels the playing field for all participants. The capabilities are orders of magnitude stronger than any laws on the books, as well as the ability to enforce such laws. Authors are better off being benevolent (open source) or offer their products at an enticing and fair price, or ask for voluntary pay from the consumer. There are already many people who take such attitude and being successful at dealing with reality. Do you get to determine "fair price"? Or perhaps the costs of development, editing, printing, binding, marketing, distribution and other costs play a more important part in determining a fair price. How do you know what my time is worth? Hint: You don't have a clue.
- Student debt in the U.S.A is already $1.48 TRILLION. great part of that is attributed to the cost of books Bullshit.. Someone is getting rich in this system and typically it is not the authors. Agreed, and torrent sites play a significant role.
?The world is constantly changing and sticking to old guns does not pay off. I suggest to stop whining and get on with your regularly scheduled programming... On Thu, Aug 22, 2019 at 9:57 AM Jack Purdum via Groups.Io <jjpurdum= [email protected]> wrote:
This is an issue that hits home for me. One of my publishing companies has 3 people who's only job is to shut down torrent sites that allow free downloads of their books. Two years ago, they closed down over 2,000 sites that were downloading copyright material. They estimate that for every book I sell, three are downloaded illegally. We've even had universities point their students to these sites. It's impossible to stop them because the capital costs are little more than the cost of getting a domain name.
True, I'm out the royalties lost, but that's not the real cost of downloading/copying copyright material...regardless of the country's laws about it. The real cost are the books that don't come to the market because authors now know it's simply not worth the effort. If I were in it just for the money, I would have stopped writing around the turn of the century. We've even had readers on this site give the URL's of where my books can be downloaded free of charge. Since there is no way to stop them, my attitude now is: If you illegally download the book and read it, and decide it was worth it, then buy a copy of the book. I doubt there are many who follow this plan, but what else can an author do? It's a rock-hard-place situation.
Jack, W8TEE
On Thursday, August 22, 2019, 11:38:17 AM EDT, Arv Evans < arvid.evans@...> wrote:
The issue of posting something that might be under copyright does come up fairly frequently. When this happens a lot of bandwidth is usually taken by those who charge in to protect the
copyright or patent, and not much ever comes of it.? Most do not know, or do not want to
admit, that for over half of the world copyrights and patents are irrelevant and are not enforced.
This makes it difficult or impossible to police violations in those countries. ? Posting protected
material on a global forum like the BITX20 group seems to be a gray area because the person
posting the material may be in one of the unenforceable areas but the post can be read by
persons located in an enforceable area.? Best we can do is to ask that you do not post protected
material, and to remove those posts when it happens.?
Arv? K7HKL
_._
On Wed, Aug 21, 2019 at 11:00 PM kh6sky < kh6sky@...> wrote: I have asked for permission from the ARRL to post an article from the early 60's and they refused to grant.? I am not optimistic about anything recent.? I have noted that QST authors sometimes post their articles on their own websites, for which I suppose they have permission, but don't know if it would be a work-around to go though the author and ask him to post it here.
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Original firmware upload OK, CEC not so much - what am I doing wrong?
On my no-mods-yet v5 ?BitX when I upload the?UBITXV5_CEC_V1.200_16P.hex I get 16 block symbols in the LCD upper row and no function or encoder response. When I upload?ubitx_20._org.hex I get a functioning radio but I'm back to where I started.
What am I doing wrong?
How can I troubleshoot this?
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I took a course from the Mises Institute once on intellectual property. It wasn't until I was IN the class that I found out the professor was an IP contrarian. He didn't agree with copyright and intellectual property laws. I put up with his oh so libertarian claptrap for a couple of weeks, then told him I was dropping the course, because his opinion was that I didn't deserve anything for the effort I put into my own writing and artwork for my comic book and webcomic series.
People who go to THOSE lengths to justify stealing my work then trying to educate me as to why it wasn't really stealing are toads, and I told him so.
Gwen, NG3P
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Re: Bitx40 very loud, high-pitched, low frequency noise
On 8/22/2019 20:15, SP9DEV wrote:
Would adding a very small capacitor (nano/pico order) help as
well? Or would this be too small to make any difference?
And another question, does anyone know any MacGyver way to
make something working as a ferrite sleeve? I don't have any
right now and would like to test it as soon as possible.
One more thing....
A ferrite sleeve is useful for common mode RFI a higher frequencies,
but has little effect on lower frequencies, like audio.? It provides
a series inductance in the supply line, so more that one turn of a
supply cable through the sleeve (if will fit) will be more effective
than just one pass through.
Woody
--
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On 8/22/2019 21:38, Donald wrote:
Jerry Gaffke, in
post #44333, suggested using a 1/2A fuse for the main board, and
using 2A or 3 A for the PA.
Any suggestions otherwise?
Perhaps a little over-kill, but...
That would provide the ultimate protection for the board, mostly
by avoiding burning of circuit board traces in the event of a
short.? As they say, silicon is faster to blow than a fuse ;)??
Reverse polarity power can kill semiconductors, then (if they go
shorted) blow the fuse.?
That is why a shunt power diode is useful in addition to a only
fuse - to blow the fuse before the reverse polarity voltage
reaches critical devices.? A series diode will stop the reverse
voltage without blowing the fuse but will add about a 0.6 volt
drop to the equipment.
Woody
--
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There is a racket going on with college textbooks.
These days you can wind up spending $300 on a required book for a class.
And there's various schemes to discourage a used market, kickbacks to
encourage the powers that be to choose specific textbooks, etc
Costs can be way more than $1k/yr.
Not true everywhere.?
Some schools make a policy of of using freely available material where possible.
And even make it possible to get credit by "attending" class online.
Worth considering when shopping for a University.
Generally speaking, I find it best to keep my nose clean with respect to obeying the law.
If you feel a law is wrong enough that it needs breaking, then go for it.
That can at times be an important civic duty.
But don't be surprised if there are consequences.
Regarding the ARRL and their grip on those copyrights, that's their privilege.
They seem enough of a force for mostly good that it is worth putting up with (YMMV).
Though if I spent 6 months on a project that I wanted made easily available
to amateurs worldwide, publishing in QST or QEX would not be my first choice.
Jerry, KE7ER
toggle quoted message
Show quoted text
On Thu, Aug 22, 2019 at 02:05 PM, Ken Hansen wrote:
So textbooks cost $1K/year, tuition is $20K, and it's the TEXTBOOKS that are the problem?
?
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Re: Bitx40 very loud, high-pitched, low frequency noise
On 8/22/2019 20:15, SP9DEV wrote:
Would adding a very small capacitor (nano/pico order) help as
well? Or would this be too small to make any difference?
And another question, does anyone know any MacGyver way to make
something working as a ferrite sleeve? I don't have any right
now and would like to test it as soon as possible.
Piotr,
Lower value capacitors cannot hurt, but they are only useful for
Very High Frequencies.? The type of capacitor (electrolytic,?
ceramic, silver mica, etc.)? have different characteristics at
different frequencies. ? For example, tantalum electrolytic
capacitors are typically useful at higher frequencies than
aluminum electrolytic capacitors due to the lower ESR at high
frequencies.? Lower capacitance ceramic or silver mica capacitors
typically have lower ESR at high frequencies than do electrolytic
ones. ? For the very lowest ESR, "chip" (SMD) capacitors perform
best.? This is because the lead wires on other capacitors add
inductance in series with the capacitor, thus increasing the ESR.?
In your case. it is doubtful that going below .01 uf will be
helpful.
A physically small ceramic capacitor of .1 or .01 uf should be low
enough to bypass anything less than VHF frequencies or very
fast transient spikes.?? Here is a reactance calculator that will
give the effective series resistance (ESR) of a capacitor.? This
is for an ideal capacitor and does not take into account lead
length and the type (construction) of the part.
If you have any old computer cables, power supply cables, or
similar that have a molded lump in the line, that is a ferrite
sleeve.? Many times I have cut away the? molded plastic, pulled
out the wire, and used them in my circuits.
?
Good luck!
Woody - KZ4AK
Google translate (maybe):
Kondensatory o ni?szej warto?ci nie mog? zaszkodzi?, ale s?
przydatne tylko w przypadku bardzo wysokich cz?stotliwo?ci. Rodzaj
kondensatora (elektrolityczny, ceramiczny, mika srebrna itp.) Ma
r¨®?ne w?a?ciwo?ci przy r¨®?nych cz?stotliwo?ciach. Na przyk?ad
kondensatory elektrolityczne tantalu s? zwykle u?yteczne przy
wy?szych cz?stotliwo?ciach ni? aluminiowe kondensatory
elektrolityczne ze wzgl?du na ni?szy ESR przy wysokich
cz?stotliwo?ciach. Kondensatory ceramiczne lub srebrowe miki o
ni?szej pojemno?ci zwykle maj? ni?sz? ESR przy wysokich
cz?stotliwo?ciach ni? elektrolityczne. W przypadku najni?szej ESR
kondensatory ?chipowe¡± (SMD) dzia?aj? najlepiej. Jest tak,
poniewa? przewody o?owiane w innych kondensatorach dodaj?
indukcyjno?? szeregowo do kondensatora, zwi?kszaj?c w ten spos¨®b
ESR. W Twoim przypadku. w?tpliwe jest, aby p¨®j?? poni?ej .01 uf
b?dzie pomocne.
Fizycznie ma?y ceramiczny kondensator .1 lub .01 uf powinien by?
wystarczaj?co niski, aby omin?? cokolwiek mniejszego ni?
cz?stotliwo?ci VHF lub bardzo szybkie przej?ciowe impulsy. Oto
kalkulator reaktancji, kt¨®ry da efektywn? rezystancj? szeregow?
(ESR) kondensatora. Dotyczy to idealnego kondensatora i nie
uwzgl?dnia d?ugo?ci o?owiu oraz rodzaju (budowy) cz??ci.
Je?li masz jakie? stare kable komputerowe, kable zasilaj?ce lub
podobne, kt¨®re maj? uformowany guzek w linii, jest to tuleja
ferrytowa. Wiele razy odci??em uformowany plastik, wyci?gn??em
drut i u?y?em ich w moich obwodach.
--
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Jerry Gaffke, in post #44333, suggested using a 1/2A fuse for the main board, and using 2A or 3 A for the PA.
Any suggestions otherwise?
|
Re: Isolate any jacks/controls from metal chassis?
#ubitx
On Thu, Aug 22, 2019 at 09:54 AM, <jhowell39@...> wrote:
Electric guitar body cavities (pickup mounts, etc) often use a conductive copper tape for shielding
I bought a roll on Amazon some time back. The copper tape is handy. One thing to note is: The tape claimed to have conductive adhesive. There was absolutely nothing conductive at all about the adhesive.? I cut a hole in a piece of paper and stuck two pieces of the tape together so they only make contact through the 1/2 inch hole in the paper and I could not measure any resistance less than an open circuit. If I stuck two pieces of copper tape together where they overlap (the edge of one going down the center of the other) then I measured a low resistance connection between them. I believe in the case of the overlap, the rough edge of the copper tape where I cut it was making contact with the top of the copper foil I stuck it to. I still like the tape, I just make sure I add some solder bridges across the overlapped layers. Even if the adhesive was conductive, probably not a good idea to rely on it for a solid electrical connection. I've found this tape handy for adding big ground areas to prototype board projects, too. Tom, wb6b
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So textbooks cost $1K/year, tuition is $20K, and it's the TEXTBOOKS that are the problem?
Bullshit.
If textbooks were free, a year at university would decrease by 5%, or about the amount the average non-athlete student pays in sports-related fees on many colleges.
Want to lower textbook expenses? Tell professors to stop changing textbooks each year, let an ecosystem of used books develop around the campus. When I was in college (1985) I had a calculus book by a man named Anton, he 'revised' his textbook every couple years, rendering previous used editions worthless. Are there really sufficient advances in the field of Calculus 1 to justify rewriting the book every couple years? But this is curriculum-wide - why do Norton Anthologies if Early American Lit get revises every few years? The underlying body of literature is static - all the authors met their fate over a century ago, yet the textbooks keep being revised... etc.
toggle quoted message
Show quoted text
On Aug 22, 2019, at 3:36 PM, Dr. Flywheel < Dr.Flywheel@...> wrote: Jack, I just love educated responses that use Bullshit as an argument. What could be more reliable?
Cost of Books - See:? If, for example, you are majoring in architecture or engineering, you may need computer programs that an English or Education major won¡¯t need. The national average for this category in 2017 was $1,100, but the cost of books is soaring every year so count on it going up from 8%-10% from year-to-year.
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It's a perfectly apropos response to a statement that is without foundation or fact, which is exactly what your statement was. I highlighted the BS part. What you wrote below doesn't change the BS you offered in the first note.
One wonders how you know most torrent traffic is on porn sites, but that's another question and doesn't lessen the revenue lost on books. Can you supply the place where you found the statement: "eBook tagged data traffic is almost not measurable in the grand scheme of things." or is that just more BS? To the individual, losing the royalties on 20,000 books might mean the difference between writing another book or not. While that may be small "in the grand scheme of things", it is not small to the individual.
"Now it is a competition between your high-value books (that apparently
are not going to be published, due to lack of profitability) and what
people are actually consuming en mass 24/7/365." Actually, had you read carefully, you would have noticed that I said that I would have stopped writing at the turn of the century if I was only motivated by profit. Actually, I written six books since 2000 and have another one coming out next year. The loss is not what I won't write, it's what all of the other very talented writers don't write because it's no longer worth the effort. Some of them write as a primary income source and they simply cannot exist with torrent sites, so they do something else. That's the real cost.
Jack, W8TEE
On Thursday, August 22, 2019, 4:36:47 PM EDT, Dr. Flywheel <Dr.Flywheel@...> wrote:
Jack, I just love educated responses that use Bullshit as an argument. What could be more reliable?
Cost of Books - See:? If, for example, you are majoring in architecture or engineering, you may need computer programs that an English or Education major won¡¯t need. The national average for this category in 2017 was $1,100, but the cost of books is soaring every year so count on it going up from 8%-10% from year-to-year.
See FRB report:??
As much as you like to flatter yourself about the high loss rate of books "stolen" via file sharing services (torrent is one type), this type of traffic is almost negligible. Most torrent type traffic is PORN content. Empirical data that I received from ISP traffic pattern analysis indicates that about 93% of the file sharing protocols (in action) carry tagged PORN data. eBook tagged data traffic is almost not measurable in the grand scheme of things.
Good luck on changing the world. Now it is a competition between your high-value books (that apparently are not going to be published, due to lack of profitability) and what people are actually consuming en mass 24/7/365.
--Ron? ? N7FTZ
On Thu, Aug 22, 2019 at 11:20 AM Jack Purdum via Groups.Io <jjpurdum= [email protected]> wrote:
On Thursday, August 22, 2019, 1:48:25 PM EDT, Dr. Flywheel < Dr.Flywheel@...> wrote:
Everyone is entitled to their own opinion. The real question is what works in real life. Here are a few points to think about for people who insist on living in a virtual world: - Many people use torrents to download books, in order to preview their content. Are you really saying that people only use torrent sites to preview books? Far and away most are using the site to get a free book and have no intention of paying for it regardless of its worth. To think otherwise is woefully naive. This is due to the fact that public libraries are limited in their ability to purchase and keep all the books in the world in their limited physical space. Do not assume that if someone downloads your book, they actually keep it forever. What difference can it possibly make whether they keep a free download book or not?
- I like previewing books prior to purchase. I also like physical books and my house is filled with them. I always purchase my books at bottom dollar, either "pre-owned" or "old stock". I use eBay, Amazon, B&N, etc for my purchase. As an author, you will not see a dime coming back to you through my purchase. However,? if you buy a used copy, at least someone bought the book and the author was paid for that copy. If you rip off a copy or someone gives you a file that contains the book, my guess is that copy has never been paid for.;
- Publishing for FREE has never stopped?me from doing just that. If you are using the Internet, if you are using an Intel-based PC, if you are using Linux, if you are using an Android smart phone, if you are using WiFi technology, than you are using code, tools, and documents that I authored and/or contributed to maintain. I have never seen a dime coming back to me for my contributions, neither do I expect remuneration or royalties for my work. All of my work, including that in the Arduino Projects book is Open Source for both the hardware and software. So, in one sense I am paid for it, but in another I receive nothing for it. You're free to write what you want and disseminate it in whatever format you wish. However, publishers expect a return on their investment and I see nothing wrong with that.
- Many publishers act as a Mafia to squeeze a significant $$ by guarding the gates to publishing and physical distribution. When I went to college, my books cost between $3 and $10 each (Dover Edition). What is the justification for charging between $100 and $300 for a book used for educating university students and then changing the book edition every year to prevent resale of books (recycling)? There are many places where students can buy used books at reasonable prices. Perhaps one reason books are so expensive at university books stores is because publishers are getting ripped off by torrent sites. It could be a chicken-egg thing.
- Limiting information flow to the public will never work in today's world. the capabilities are there to distribute and share information by electronic means. This levels the playing field for all participants. The capabilities are orders of magnitude stronger than any laws on the books, as well as the ability to enforce such laws. Authors are better off being benevolent (open source) or offer their products at an enticing and fair price, or ask for voluntary pay from the consumer. There are already many people who take such attitude and being successful at dealing with reality. Do you get to determine "fair price"? Or perhaps the costs of development, editing, printing, binding, marketing, distribution and other costs play a more important part in determining a fair price. How do you know what my time is worth? Hint: You don't have a clue.
- Student debt in the U.S.A is already $1.48 TRILLION. great part of that is attributed to the cost of books Bullshit.. Someone is getting rich in this system and typically it is not the authors. Agreed, and torrent sites play a significant role.
?The world is constantly changing and sticking to old guns does not pay off. I suggest to stop whining and get on with your regularly scheduled programming... On Thu, Aug 22, 2019 at 9:57 AM Jack Purdum via Groups.Io <jjpurdum= [email protected]> wrote:
This is an issue that hits home for me. One of my publishing companies has 3 people who's only job is to shut down torrent sites that allow free downloads of their books. Two years ago, they closed down over 2,000 sites that were downloading copyright material. They estimate that for every book I sell, three are downloaded illegally. We've even had universities point their students to these sites. It's impossible to stop them because the capital costs are little more than the cost of getting a domain name.
True, I'm out the royalties lost, but that's not the real cost of downloading/copying copyright material...regardless of the country's laws about it. The real cost are the books that don't come to the market because authors now know it's simply not worth the effort. If I were in it just for the money, I would have stopped writing around the turn of the century. We've even had readers on this site give the URL's of where my books can be downloaded free of charge. Since there is no way to stop them, my attitude now is: If you illegally download the book and read it, and decide it was worth it, then buy a copy of the book. I doubt there are many who follow this plan, but what else can an author do? It's a rock-hard-place situation.
Jack, W8TEE
On Thursday, August 22, 2019, 11:38:17 AM EDT, Arv Evans < arvid.evans@...> wrote:
The issue of posting something that might be under copyright does come up fairly frequently. When this happens a lot of bandwidth is usually taken by those who charge in to protect the
copyright or patent, and not much ever comes of it.? Most do not know, or do not want to
admit, that for over half of the world copyrights and patents are irrelevant and are not enforced.
This makes it difficult or impossible to police violations in those countries. ? Posting protected
material on a global forum like the BITX20 group seems to be a gray area because the person
posting the material may be in one of the unenforceable areas but the post can be read by
persons located in an enforceable area.? Best we can do is to ask that you do not post protected
material, and to remove those posts when it happens.?
Arv? K7HKL
_._
On Wed, Aug 21, 2019 at 11:00 PM kh6sky < kh6sky@...> wrote: I have asked for permission from the ARRL to post an article from the early 60's and they refused to grant.? I am not optimistic about anything recent.? I have noted that QST authors sometimes post their articles on their own websites, for which I suppose they have permission, but don't know if it would be a work-around to go though the author and ask him to post it here.
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No, the vast majority (aka a "great part") of student debt is not due to the high cost of student textbooks..
A $20-40,000/year university is not suddenly rendered 'unaffordable' by $500-800 in text books per semester.
It's a non-sensical claim, but please, I'd be interested in your source for that claim.
Ken, N2VIP
toggle quoted message
Show quoted text
On Aug 22, 2019, at 12:48 PM, Dr. Flywheel <Dr.Flywheel@...> wrote:
Student debt in the U.S.A is already $1.48 TRILLION. great part of that is attributed to the cost of books.
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Ron N7FTZ, you seem not to realize, Jack W8TEE is already
published.
On 8/22/2019 3:36 PM, Dr. Flywheel
wrote:
toggle quoted message
Show quoted text
Jack,
I just love educated responses that use Bullshit
as an argument. What could be more reliable?
Cost of Books - See:?
If,
for example, you are majoring in architecture or
engineering, you may need computer programs that an
English or Education major won¡¯t need. The national
average for this category in 2017 was $1,100, but the
cost of books is soaring every year so count on it going
up from 8%-10% from year-to-year.
See FRB report:??
As much as you like to flatter yourself about the high loss
rate of books "stolen" via file sharing services (torrent is
one type), this type of traffic is almost negligible. Most
torrent type traffic is PORN content. Empirical data that I
received from ISP traffic pattern analysis indicates that
about 93% of the file sharing protocols (in action) carry
tagged PORN data. eBook tagged data traffic is almost not
measurable in the grand scheme of things.
Good luck on changing the world. Now it is a competition
between your high-value books (that apparently are not going
to be published, due to lack of profitability) and what people
are actually consuming en mass 24/7/365.
--Ron? ? N7FTZ
On Thu, Aug 22, 2019 at 11:20
AM Jack Purdum via Groups.Io <jjpurdum= [email protected]> wrote:
On Thursday, August 22, 2019, 1:48:25 PM EDT, Dr.
Flywheel < Dr.Flywheel@...>
wrote:
Everyone is entitled to their own
opinion. The real question is what works in real
life. Here are a few points to think about for
people who insist on living in a virtual world:
- Many people use torrents to download
books, in order to preview their content.
Are you really saying that people only
use torrent sites to preview books? Far
and away most are using the site to get
a free book and have no intention of
paying for it regardless of its worth.
To think otherwise is woefully naive. This
is due to the fact that public libraries
are limited in their ability to purchase
and keep all the books in the world in
their limited physical space. Do not
assume that if someone downloads your
book, they actually keep it forever. What difference can it
possibly make whether they keep a free
download book or not?
- I like previewing books prior to
purchase. I also like physical books and
my house is filled with them. I always
purchase my books at bottom dollar, either
"pre-owned" or "old stock". I use eBay,
Amazon, B&N, etc for my purchase. As
an author, you will not see a dime coming
back to you through my purchase. However,?
if you buy a used copy, at least someone
bought the book and the author was paid
for that copy. If you rip off a copy or
someone gives you a file that contains
the book, my guess is that copy has
never been paid for.;
- Publishing for FREE has never stopped?me
from doing just that. If you are using the
Internet, if you are using an Intel-based
PC, if you are using Linux, if you are
using an Android smart phone, if you are
using WiFi technology, than you are using
code, tools, and documents that I authored
and/or contributed to maintain. I have
never seen a dime coming back to me for my
contributions, neither do I expect
remuneration or royalties for my work. All of my work, including that
in the Arduino Projects book is
Open Source for both the hardware and
software. So, in one sense I am paid for
it, but in another I receive nothing for
it. You're free to write what you want
and disseminate it in whatever format
you wish. However, publishers expect a
return on their investment and I see
nothing wrong with that.
- Many publishers act as a Mafia to
squeeze a significant $$ by guarding the
gates to publishing and physical
distribution. When I went to college, my
books cost between $3 and $10 each (Dover
Edition). What is the justification for
charging between $100 and $300 for a book
used for educating university students and
then changing the book edition every year
to prevent resale of books (recycling)? There are many places where
students can buy used books at
reasonable prices. Perhaps one reason
books are so expensive at university
books stores is because publishers are
getting ripped off by torrent sites. It
could be a chicken-egg thing.
- Limiting information flow to the public
will never work in today's world. the
capabilities are there to distribute and
share information by electronic means.
This levels the playing field for all
participants. The capabilities are orders
of magnitude stronger than any laws on the
books, as well as the ability to enforce
such laws. Authors are better off being
benevolent (open source) or offer their
products at an enticing and fair price, or
ask for voluntary pay from the consumer.
There are already many people who take
such attitude and being successful at
dealing with reality. Do
you get to determine "fair price"? Or
perhaps the costs of development,
editing, printing, binding, marketing,
distribution and other costs play a more
important part in determining a fair
price. How do you know what my time is
worth? Hint: You don't have a clue.
- Student debt in the U.S.A is already
$1.48 TRILLION.
great part of that is attributed to the
cost of books
Bullshit.. Someone is getting
rich in this system and typically it is
not the authors. Agreed,
and torrent sites play a significant
role.
?The world is constantly changing and sticking
to old guns does not pay off. I suggest to
stop whining and get on with your regularly
scheduled programming...
On Thu, Aug 22, 2019 at 9:57 AM Jack
Purdum via Groups.Io <jjpurdum= [email protected]>
wrote:
This is an issue that hits
home for me. One of my publishing
companies has 3 people who's only job is
to shut down torrent sites that allow
free downloads of their books. Two years
ago, they closed down over 2,000 sites
that were downloading copyright
material. They estimate that for every
book I sell, three are downloaded
illegally. We've even had universities
point their students to these sites.
It's impossible to stop them because the
capital costs are little more than the
cost of getting a domain name.
True, I'm out the royalties
lost, but that's not the real cost of
downloading/copying copyright
material...regardless of the country's
laws about it. The real cost are the
books that don't come to the market
because authors now know it's simply not
worth the effort. If I were in it just
for the money, I would have stopped
writing around the turn of the century.
We've even had readers on this site give
the URL's of where my books can be
downloaded free of charge. Since there
is no way to stop them, my attitude now
is: If you illegally download the book
and read it, and decide it was worth it,
then buy a copy of the book. I doubt
there are many who follow this plan, but
what else can an author do? It's a
rock-hard-place situation.
Jack, W8TEE
On Thursday, August 22, 2019,
11:38:17 AM EDT, Arv Evans < arvid.evans@...>
wrote:
The issue
of posting something that
might be under copyright does
come up fairly frequently.
When this
happens a lot of bandwidth is
usually taken by those who
charge in to protect the
copyright
or patent, and not much ever
comes of it.? Most do not
know, or do not want to
admit,
that for over half of the
world copyrights and patents
are irrelevant and are not
enforced.
This
makes it difficult or
impossible to police
violations in those countries.
? Posting protected
material
on a global forum like the
BITX20 group seems to be a
gray area because the person
posting
the material may be in one of
the unenforceable areas but
the post can be read by
persons
located in an enforceable
area.? Best we can do is to
ask that you do not post
protected
material,
and to remove those posts when
it happens.?
Arv?
K7HKL
_._
On Wed, Aug 21, 2019
at 11:00 PM kh6sky < kh6sky@...>
wrote:
I
have asked for permission from
the ARRL to post an article
from the early 60's and they
refused to grant.? I am not
optimistic about anything
recent.? I have noted that QST
authors sometimes post their
articles on their own
websites, for which I suppose
they have permission, but
don't know if it would be a
work-around to go though the
author and ask him to post it
here.
|
Jack, I just love educated responses that use Bullshit as an argument. What could be more reliable?
Cost of Books - See:? If, for example, you are majoring in architecture or engineering, you may need computer programs that an English or Education major won¡¯t need. The national average for this category in 2017 was $1,100, but the cost of books is soaring every year so count on it going up from 8%-10% from year-to-year.
See FRB report:??
As much as you like to flatter yourself about the high loss rate of books "stolen" via file sharing services (torrent is one type), this type of traffic is almost negligible. Most torrent type traffic is PORN content. Empirical data that I received from ISP traffic pattern analysis indicates that about 93% of the file sharing protocols (in action) carry tagged PORN data. eBook tagged data traffic is almost not measurable in the grand scheme of things.
Good luck on changing the world. Now it is a competition between your high-value books (that apparently are not going to be published, due to lack of profitability) and what people are actually consuming en mass 24/7/365.
--Ron? ? N7FTZ
On Thu, Aug 22, 2019 at 11:20 AM Jack Purdum via Groups.Io <jjpurdum= [email protected]> wrote:
On Thursday, August 22, 2019, 1:48:25 PM EDT, Dr. Flywheel < Dr.Flywheel@...> wrote:
Everyone is entitled to their own opinion. The real question is what works in real life. Here are a few points to think about for people who insist on living in a virtual world: - Many people use torrents to download books, in order to preview their content. Are you really saying that people only use torrent sites to preview books? Far and away most are using the site to get a free book and have no intention of paying for it regardless of its worth. To think otherwise is woefully naive. This is due to the fact that public libraries are limited in their ability to purchase and keep all the books in the world in their limited physical space. Do not assume that if someone downloads your book, they actually keep it forever. What difference can it possibly make whether they keep a free download book or not?
- I like previewing books prior to purchase. I also like physical books and my house is filled with them. I always purchase my books at bottom dollar, either "pre-owned" or "old stock". I use eBay, Amazon, B&N, etc for my purchase. As an author, you will not see a dime coming back to you through my purchase. However,? if you buy a used copy, at least someone bought the book and the author was paid for that copy. If you rip off a copy or someone gives you a file that contains the book, my guess is that copy has never been paid for.;
- Publishing for FREE has never stopped?me from doing just that. If you are using the Internet, if you are using an Intel-based PC, if you are using Linux, if you are using an Android smart phone, if you are using WiFi technology, than you are using code, tools, and documents that I authored and/or contributed to maintain. I have never seen a dime coming back to me for my contributions, neither do I expect remuneration or royalties for my work. All of my work, including that in the Arduino Projects book is Open Source for both the hardware and software. So, in one sense I am paid for it, but in another I receive nothing for it. You're free to write what you want and disseminate it in whatever format you wish. However, publishers expect a return on their investment and I see nothing wrong with that.
- Many publishers act as a Mafia to squeeze a significant $$ by guarding the gates to publishing and physical distribution. When I went to college, my books cost between $3 and $10 each (Dover Edition). What is the justification for charging between $100 and $300 for a book used for educating university students and then changing the book edition every year to prevent resale of books (recycling)? There are many places where students can buy used books at reasonable prices. Perhaps one reason books are so expensive at university books stores is because publishers are getting ripped off by torrent sites. It could be a chicken-egg thing.
- Limiting information flow to the public will never work in today's world. the capabilities are there to distribute and share information by electronic means. This levels the playing field for all participants. The capabilities are orders of magnitude stronger than any laws on the books, as well as the ability to enforce such laws. Authors are better off being benevolent (open source) or offer their products at an enticing and fair price, or ask for voluntary pay from the consumer. There are already many people who take such attitude and being successful at dealing with reality. Do you get to determine "fair price"? Or perhaps the costs of development, editing, printing, binding, marketing, distribution and other costs play a more important part in determining a fair price. How do you know what my time is worth? Hint: You don't have a clue.
- Student debt in the U.S.A is already $1.48 TRILLION. great part of that is attributed to the cost of books Bullshit.. Someone is getting rich in this system and typically it is not the authors. Agreed, and torrent sites play a significant role.
?The world is constantly changing and sticking to old guns does not pay off. I suggest to stop whining and get on with your regularly scheduled programming... On Thu, Aug 22, 2019 at 9:57 AM Jack Purdum via Groups.Io <jjpurdum= [email protected]> wrote:
This is an issue that hits home for me. One of my publishing companies has 3 people who's only job is to shut down torrent sites that allow free downloads of their books. Two years ago, they closed down over 2,000 sites that were downloading copyright material. They estimate that for every book I sell, three are downloaded illegally. We've even had universities point their students to these sites. It's impossible to stop them because the capital costs are little more than the cost of getting a domain name.
True, I'm out the royalties lost, but that's not the real cost of downloading/copying copyright material...regardless of the country's laws about it. The real cost are the books that don't come to the market because authors now know it's simply not worth the effort. If I were in it just for the money, I would have stopped writing around the turn of the century. We've even had readers on this site give the URL's of where my books can be downloaded free of charge. Since there is no way to stop them, my attitude now is: If you illegally download the book and read it, and decide it was worth it, then buy a copy of the book. I doubt there are many who follow this plan, but what else can an author do? It's a rock-hard-place situation.
Jack, W8TEE
On Thursday, August 22, 2019, 11:38:17 AM EDT, Arv Evans < arvid.evans@...> wrote:
The issue of posting something that might be under copyright does come up fairly frequently. When this happens a lot of bandwidth is usually taken by those who charge in to protect the
copyright or patent, and not much ever comes of it.? Most do not know, or do not want to
admit, that for over half of the world copyrights and patents are irrelevant and are not enforced.
This makes it difficult or impossible to police violations in those countries. ? Posting protected
material on a global forum like the BITX20 group seems to be a gray area because the person
posting the material may be in one of the unenforceable areas but the post can be read by
persons located in an enforceable area.? Best we can do is to ask that you do not post protected
material, and to remove those posts when it happens.?
Arv? K7HKL
_._
On Wed, Aug 21, 2019 at 11:00 PM kh6sky < kh6sky@...> wrote: I have asked for permission from the ARRL to post an article from the early 60's and they refused to grant.? I am not optimistic about anything recent.? I have noted that QST authors sometimes post their articles on their own websites, for which I suppose they have permission, but don't know if it would be a work-around to go though the author and ask him to post it here.
|
Re: Bitx40 very loud, high-pitched, low frequency noise
Thanks Woody :D Would adding a very small capacitor (nano/pico order) help as well? Or would this be too small to make any difference?
And another question, does anyone know any MacGyver way to make something working as a ferrite sleeve? I don't have any right now and would like to test it as soon as possible.
|
Re: Bitx40 very loud, high-pitched, low frequency noise
On 8/22/2019 19:05, SP9DEV wrote:
(I think adding a
small cap parallel to the large cap will be beneficial too, as the
small one will have faster response time)
That is very true.? The large caps (like
1000+ uf) are good for low frequencies but often the ESR
(effective series resistance) is quite high for high frequencies.?
A serveral thousand uf cap in parallel with a ceramic .1 or .01 uf
(with short leads) is the ideal combination.?? Ferrite sleeves can
help with common mode RFI coming from a switcher also.
Woody
--
|
Re: Bitx40 very loud, high-pitched, low frequency noise
I have some 100uf 50V on hand, added one across bitx40 dc socket, unfortunately the problem persists. I don't have any small caps right now, tomorrow I'll add a small cap and let you guys know if this helped the case.
|
Re: Bitx40 very loud, high-pitched, low frequency noise
Just to add a bit more to this thread, I have just taken a typical 12v ¡°wall wart¡± supply that is of Oriental origin and put a oscilloscope directly across the output. There are some nasty spikes on the DC output that are larger than the
12v output. As an experiment I then put a 100uf 50v across the output and the DC became much cleaner with less pronounced spikes. Adding a 0.1uf across,stopped these spikes and made the output acceptable. The output DC did not change by more than a few millivolts.
Just a quick experiment using a random ¡°wall wart¡± from my collection of such items from discarded equipment.
?
Ian
?
Sent from for Windows 10
?
toggle quoted message
Show quoted text
I think that 1000uf is too large.
?
Try a 100uf and a 0.1uf in parallel. The larger adding more smoothing and the latter decoupling any RF and noise to ground.
?
Monitor output voltage before and after but I have had no problems with voltage increase. It all depends on what you are using as the power supply and it is open for experimentation.
?
A 1000uf would cause too high a current at switch-on (surge) and may well damage the power supply.
Start at 100uf and work up to say 250uf. If that doesn¡¯t settle things down,I guess you need a more robust 12v supply.
?
Ian
M0IDR
?
Sent from for Windows 10
?
Alright, I'll try with a 1000uF capacitor, first I'll measure the output voltage with the capacitor between + and gnd lines of the supply output, then I'll give it a try with my bitx by soldering the cap directly across the dc input (I think adding a small
cap parallel to the large cap will be beneficial too, as the small one will have faster response time)
|
Jim
Gwen Patton