Category: Communications

An Easy Diagram to Learn Morse Code

And easy chart to learn Morse code.  I haven’t tried it, but it’s so simple to figure out that I’d bet that it would work.

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2012 Solar Storm incoming! (how’s that for a 2012 coincidence?)

If you’re into ham radio, you’ve probably heard about Solar Maxima/Minima issues, and how they affect high frequency propagation, and the various other things good old Sol affects.

This is for the other folks. Those of you that aren’t ham radio people, the effect the sun has on many of our systems is huge. Of course, I’m not talking about the weather – I’m talking about things like the GPS system, the power grid, computers, telecom, data storage, and all sorts of other systems that can, and have been, affected by “Solar Storms”.

What am I leading up to? Well, it seems that the good folks at NASA have released some thoughts on the next solar maximum, and potential trouble areas. I’ve included a map here that gives some idea as to the vulnerable areas.

Map of potential power grid loss in USA

Map of potential power grid loss in USA

Here’s another, more detailed map that hits vulnerability state by state:
transformermap

Note also what the caption says on that map “Regions with high percentages of at-risk capacity cold experience long-duration outages that could extend multiple years”. Note also that the data is fairly current, not like some of the fallout maps out there, that are popular to look at and ponder.

For those of you that are relocating, take a look at the maps, and think about this. It’s definitely something to consider, both from a pro and con standpoint.

For the full article, go here, it’s pretty interesting stuff:http://science.nasa.gov/science-news/science-at-nasa/2009/21jan_severespaceweather

-Greg

BBC News – Call to improve password security

Hopefully, no one reading this blog is foolish enough to use simple passwords.  Even so, if you have a habit of using one password for every website and/or your passwords are simple, you should really rethink your digital security.  Personally, I use 1Password to keep track of all my website passwords, and I use its built-in password generator to create random passwords.  Since it keeps track of them for me, I don’t have to worry about remembering them (it will fill it in automatically for you – yeah, it sounds insecure, but it isn’t). Sites more prone to hacking (like Facebook) get passwords of maximum length and complexity.

BBC News – Call to improve password security

Researchers say the growing number of processors on graphics cards will soon make it trivial for them to crack short passwords.

A password of seven characters or less will soon be “hopelessly inadequate” they claim.

The researchers suggest passwords should be at least 12 characters long to be safe.

Teenager invents low-frequency radio for underground communications — Engadget

Teenager invents low-frequency radio for underground communications — Engadget

Teenager invents low-frequency radio for underground communications
By Vladislav Savov posted Feb 1st 2010 6:11AM

You know what’s really annoying? Teenagers. Even more annoying? Teenagers inventing legitimately useful things and getting awards for it. Meet Alexander Kendrick, the 16-year old inventor of a new low-frequency radio that allows for cave-texting, which isn’t some fresh new euphemism, it just means people can finally text while deep underground. How deep, you ask — well, Alexander’s team of intrepid explorers went far enough (946 feet) to record the deepest known digital communic

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