开云体育

The Jan-Feb 2020 Issue of the ARRL QEX magazine has a cover story on the NanoVNA by Dr. George Steber:

"Dr. George R. Steber, WB9LVI, reviews a tiny vector network analyzer (VNA) introduced for about US$50 and compares its capabilities with full-featured lab grade analyzers that cost thousands of dollars. An RF VNA is the instrument of choice for measuring the electrical parameters of antennas, components, filters and more. Dr. Steber describes his experiences with the tiny VNA, termed a NanoVNA. He begins with a short description of some technical specifications, and relates how he acquired the NanoVNA. He then includes historical details on the evolution of the product. Next, he describes the general architecture of the instrument, and finally he describes the operation of the unit and including examples."

- Herb

On Fri, Dec 20, 2019 at 02:19 AM, hwalker wrote:

Jan-Feb 2020 Issue of the ARRL QEX magazine
seems a pity it could not be posted for non members to read,looks like an interesting read.

FYI, a (new) digital version of QEX will be available to all ARRL members starting early next year. If you want the print version, you’ll need to subscribe.

Mark W8EWH

Maybe someone can report the conclusion of the review.
It only needs a few lines of text, ;-)

73 de Andy

cant someone copy the article and save it to google drive and post a link??,seems pointless becoming a member as im uk and i only want to read that article,73 Paul.

ARRL is like that.? They are a business and have to justify asking people to join and pay fees.
I have avoided joining ARRL for my 70 years as a ham because I always felt their pecuniary interests were more important than their stated mission.
I don't like some of their publications; I don't believe their articles are properly researched and validated.? But again, it's a business and the bottom line is the important thing.
Some of their free services are useful to me, such as the chart of the ham bands and the code practice on HF.? I own some of their publications but am very skeptical of the science.
In Indonesia, the ORARI (Organization Amateur Radio Indonesia) is the equivalent of the ARRL and I think membership is required to obtain a ham license.? But that organization sponsors many events, such as CW copying contests and hamfests and foxhunts.? They even have a uniform to wear, I think orange and white.? A vast difference from the US.
Bob

On Sat, Dec 21, 2019 at 07:06 PM, <nanovnauser@...> wrote:

cant someone copy the article and save it to google drive and post a link?

Erm no Paul (M3VUV).
It's called copyright.

Brings back (unpleasant) memories. A few years ago, I posted some information on eHam that Electric Radio Magazine had an excellent 3 part article (done by Ray, N0DMS, the Editor) concerning some effective improvements to the Hallicrafters SX-117.
I was immediately deluged my 'requests' and even a few 'demands' that I copy the articles and send them out, FREE of course.

When I told these cheapskates that the info was Copyrighted, I was called a bunch of names I wouldn't care to use here.
Yes, back issues were/are available for a very modest fee from ER Mag.

Sigh.....

ron
N4UE

Ron, of course anyone is entitled to have a copyright for his writings.? That's part of what makes the free enterprise system as good as it is.? (And it isn't always so good.)
Nobody should complain if someone wants to be paid for his efforts.? And if he decides to give it away no charge, that's his business.
I agree that it would be nice to get all this hobby related stuff without shelling out money but that's not the siruation here.? The operative word is 'hobby' and many resent someone who wants to profit from it.
The world is what it is and no one of us can change it by very much.
Bob K6DDX

Isn't it OK to quote copyrighted articles as long as one credits the source? How about just quoting the parts that are not already common knowledge?

Define “common knowledge”.

DaveD

Sent from a small flat thingy

Quoting is always at the discretion of the copyright holder.? Any part of a copyrighted work is protected.
Bob

It is allowed as "Fair Use".



"In its most general sense, a fair use is any copying of copyrighted material done for a limited and “transformative” purpose" (fair use of the first sentence of the above web page).

73

-Jim
NU0C


On Sat, 21 Dec 2019 21:07:00 +0000 (UTC)
"Bob Albert via Groups.Io" <bob91343@...> wrote:

Quoting is always at the discretion of the copyright holder.? Any part of a copyrighted work is protected.
Bob
On Saturday, December 21, 2019, 12:57:02 PM PST, W5DXP <w5dxp@...> wrote:

Isn't it OK to quote copyrighted articles as long as one credits the source? How about just quoting the parts that are not already common knowledge?

But that does not include wide re-publication .

DaveD

Sent from a small flat thingy

No, it does not. It covers Fair Use quoting, which is the point.

73

-Jim
NU0C

On Sat, 21 Dec 2019 17:24:01 -0500
"Dave Daniel" <kc0wjn@...> wrote:

But that does not include wide re-publication .

DaveD

Sent from a small flat thingy

On Dec 21, 2019, at 17:10, Jim Shorney <jshorney@...> wrote:


It is allowed as "Fair Use".



"In its most general sense, a fair use is any copying of copyrighted material done for a limited and “transformative” purpose" (fair use of the first sentence of the above web page).

73

-Jim
NU0C


On Sat, 21 Dec 2019 21:07:00 +0000 (UTC)
"Bob Albert via Groups.Io" <bob91343@...> wrote:

Quoting is always at the discretion of the copyright holder. Any part of a copyrighted work is protected.
Bob
On Saturday, December 21, 2019, 12:57:02 PM PST, W5DXP <w5dxp@...> wrote:

Isn't it OK to quote copyrighted articles as long as one credits the source? How about just quoting the parts that are not already common knowledge?

On the other hand... (Copied from under Fair Use provisions):

In June 2011, Judge Philip Pro of the District of Nevada ruled in Righthaven v. Hoehn that the posting of an entire editorial article from the Las Vegas Review Journal in a comment as part of an online discussion was unarguably fair use. Judge Pro noted that "Noncommercial, nonprofit use is presumptively fair. ... Hoehn posted the Work as part of an online discussion. ... This purpose is consistent with comment, for which 17 U.S.C. § 107 provides fair use protection. ... It is undisputed that Hoehn posted the entire work in his comment on the Website. ... wholesale copying does not preclude a finding of fair use. ... there is no genuine issue of material fact that Hoehn's use of the Work was fair and summary judgment is appropriate." On appeal, the Court of Appeals for the Ninth Circuit ruled that Righthaven did not even have the standing needed to sue Hoehn for copyright infringement in the first place.

73

-Jim
NU0C

On Sat, 21 Dec 2019 17:19:09 -0600
"Jim Shorney" <jshorney@...> wrote:

No, it does not. It covers Fair Use quoting, which is the point.

73

-Jim
NU0C

On Sat, 21 Dec 2019 17:24:01 -0500
"Dave Daniel" <kc0wjn@...> wrote:

But that does not include wide re-publication .

DaveD

Sent from a small flat thingy

On Dec 21, 2019, at 17:10, Jim Shorney <jshorney@...> wrote:


It is allowed as "Fair Use".



"In its most general sense, a fair use is any copying of copyrighted material done for a limited and “transformative” purpose" (fair use of the first sentence of the above web page).

73

-Jim
NU0C


On Sat, 21 Dec 2019 21:07:00 +0000 (UTC)
"Bob Albert via Groups.Io" <bob91343@...> wrote:

Quoting is always at the discretion of the copyright holder. Any part of a copyrighted work is protected.
Bob
On Saturday, December 21, 2019, 12:57:02 PM PST, W5DXP <w5dxp@...> wrote:

Isn't it OK to quote copyrighted articles as long as one credits the source? How about just quoting the parts that are not already common knowledge?

From: Dave Daniel: Define “common knowledge”.

I would say anything that can be obtained from simply surfing the web.

Dr. Steber is one of my favorite authors. He has published easy to follow articles on DIY VNA's and other instruments in QEX magazine and Nuts and Volts magazines over the years. Pretty much all those articles are available for download on the web. Its usually just a matter of waiting for some time after the initial magazine is published before selected articles start to appear.

Entire QEX magazine archives from 1982-2016 have been available at for some years now.

I don't have a subscription to QEX but if there is content that interests me I do purchase individual issues as a way of supporting the author and encouraging him to publish future articles.

- Herb

Hmmm. That is indeed interesting.

DaveD

Sent from a small flat thingy

It is a pity there are one or two members of the "something for nothing"
set on this forum.
If Dr.Steber wishes to publish his findings in QEX, where he is financially
rewarded, then that is his choice.
Writing technical articles takes considerable time and effort as I know
from personal experience as a contributor to Sprat, the magazine of the
GQRP Club. I receive no remuneration from the GQRP Club and I am happy with
that.
I have been a member of the ARRL for 43 years but cannot afford the extra
cost of QEX. This I accept.
Many years ago, as a postgraduate university student, I wrote a large
dissertation on the development of early radio receivers. The thesis, which
took considerable time and effort, is the property of the university and
myself.
Thank you to all who have freely given their time and energy to the design
and development of the NanoVNA.

Phil G3SES