k3io(a)verizon.net sent this article to you from Electronic Design's Web site.
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The LTC6802 looks like a very promising way to monitor all the battery cells in a series string.
73, Tom
---------- Stack Monitor Chips Without Isolation Concerns To Give Your Electric Car Some Zip
http://www.elecdesign.com/Articles/ArticleID/20026/20026.html
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For more articles and engineering resources, visit www.elecdesign.com
All,
AMSAT has been maintaining a world class set of software tools for RF
design, antenna design, schematic capture, PCB layout and auto-route, and
FPGA/CPLD/etc. design. There are modules for special purpose applications
like high speed signal PCB design, simulation and emulation. The
capabilities are beyond want most of us could ever afford to touch if it
were not for AMSAT. These tools have been updated with the latest revisions
over the past week and new instructions have been prepared to help you find
them.
The purpose of making these tools available is EDUCATION. This is arguably
AMSAT's most important mission. These tools are here for YOU to become
better educated by learning and using these tools. The only restriction is
that you use them only for AMSAT sponsored projects, one of which is YOUR
EDUCATION, so go ahead and use them to design your new Ham Shack antenna,
circuit board, or whatever. AMSAT sponsored projects include ARISS, TAPR and
HPSDR projects and may include others in the future.
The most important limitation is that these tools are not to be used for
personal commercial gain or on projects that are not sponsored by AMSAT. So
do not share the registration information with non-members unless
specifically authorized by the AMSAT President or his delegated authority.
Attached are the instructions for getting the tools. The licenses are
controlled by a central server so you must be connected to the Internet to
use these tools. There are limits on the number of simultaneous users
permitted by each license, some as low as two at a time, others as high as
20 at a time. I don't expect that to be a problem.
These tools are worth many hundreds of thousands of dollars, so what is the
hitch? Any one suite of tools (sometimes called a "flow") is a major
personal commitment to learn. For that reason I recommend locating the
various Webcasts that are available and teaming up with a partner. Why would
AMSAT put you through all this pain? Because AMSAT needs people who know how
to use these tools to design the next generation satellites.
Rick
W2GPS
Elon Musk of SpaceX will visit Goddard and deliver the 3:30 Monday afternoon
Engineering Colloquium on December 15. The title is "Falcons and Dragons:
Economical Liftoffs for Science Payloads, Cargo, and People". There may be an
informal opportunity to talk to him after the colloquium, but if you want a
more formal meeting we can talk to the colloquium committee to see if
something can be set up ahead of time.
Dan Schultz
Good morning everyone,
This is probably old news for those who have studied the topic. The web
page below gives you a chance to visualize your coverage from various
geostationary orbital slots:
http://www.satsig.net/maps/satellite-maps.htm.
--
73 de JoAnne K9JKM
k9jkm(a)amsat.org
Editor, AMSAT News Service
Copy Editor, AMSAT Journal
Hello everyone,
Here is a bit of reference material for study and storage in our archive for
future access. We've discussed off and on about radio interoperability
opportunities that AMSAT may present for amateur radio emergency
communications.
Below is a link to the National Interoperability Field Operations Guide v1.2
published by US DHS, Office of Emergency Communications. This covers
national terrestrial radio planning.
http://www.npstc.org/documents/NIFOG%20v1.2%204-14-2008.pdf
--
73 de JoAnne K9JKM
k9jkm(a)amsat.org
Editor, AMSAT News Service
Copy Editor, AMSAT Journal