Archive for: March, 2010

How to wipe drives securely

Mar 31 2010 Published by under Ramblings

I just went thru’ this process to wipe a stack of drives before I dropped them off at the local Goodwill Computerworks…

With stories abounding of identity theft aided by information lifted from discarded storage devices, you want devices you no longer plan to use to have no usable information when they head out the door. Here’s how to wipe them clean.

Leave No Trace: How to Completely Erase Your Hard Drives, SSDs and Thumb Drives

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How Color Theory works

Mar 30 2010 Published by under Ramblings

This is good stuff when choosing colors for designs…

Color in design is very subjective. What evokes one reaction in one person may evoke a very different reaction in somone else. Sometimes this is due to personal preference, and other times due to cultural background. Color theory is a science in itself. Studying how colors affect different people, either individually or as a group, is something some people build their careers on. And thereโ€™s a lot to it. Something as simple as changing the exact hue or saturation of a color can evoke a completely different feeling. Cultural differences mean that something thatโ€™s happy and uplifting in one country can be depressing in another.

Color Theory for Designers, Part 1: The Meaning of Color

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My Yaesu FTM-350R is back from getting firmware update

Mar 29 2010 Published by under Ramblings

Posted by richardyoo on Natuba

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Alice in wonderland was really good

Mar 29 2010 Published by under Ramblings

Posted by richardyoo on Natuba

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Create your own 2.4ghz Spectrum analyzer

Mar 29 2010 Published by under Ramblings

Someday, when I run out of projects… maybe I’ll build one of these… ๐Ÿ™‚

After visiting some web pages about 2.4 GHz ISM band spectrum analyzers based on the CYWM6935 module, I tried to build my own analyzer, but with some improvements. The references I found on the net used the parallel port or a serial link to a host computer. I want the analyzer to be portable, and easy to transport, so I will use a microcontroller and a graphical LCD.

Handheld 2.4 GHz Spectrum Analyzer

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Dyno day at powerfab

Mar 28 2010 Published by under Ramblings

-Richard

Posted by richardyoo on Natuba

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Antenna Party

Mar 27 2010 Published by under Ramblings

Antenna party

-Richard

Posted on Natuba

Antenna party – quad on the ground

-Richard

Posted on Natuba

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The Latest ATM skimming technology

Mar 26 2010 Published by under Ramblings

This has gotten me so freaked out that I have this new habit where I inspect an ATM carefully even before I take my wallet out… yikes!

Easily the most-viewed post at krebsonsecurity.com so far has been the entry on a cleverly disguised ATM skimmer found attached to a Citibank ATM in California in late December. Last week, I had a chance to chat with Rick Doten, chief scientist at Lockheed Martinโ€™s Center for Cyber Security Innovation. Doten has built an impressive slide deck on ATM fraud attacks, and pictured below are some of the more interesting images he uses in his presentations.

According to Doten, the U.S. Secret Service estimates that annual losses from ATM fraud totaled about $1 billion in 2008, or about $350,000 each day. Card skimming, where the fraudster affixes a bogus card reader on top of the real reader, accounts for more than 80 percent of ATM fraud, Doten said.

ATM Skimmers, Part II

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FCC may ban cell phone amplifiers

Mar 25 2010 Published by under Ramblings

I already own a Wilson cell phone amp (part of my pile of ham radio gear)… but they may become extinct soon…

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Big f’ing bill…

Mar 25 2010 Published by under Ramblings

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Got a Nexus One? You need DoubleTwist!

Mar 23 2010 Published by under Ramblings

Its like iTunes (and will work with iTunes) to sync any device with your media.

DoubleTwist

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Suspended animation for humans is coming

Mar 22 2010 Published by under Ramblings

Here’s a video of Mark Roth from this year TED conference – Mark talks about how suspended animation is very real and will be here soon for humans.

I’m excited!

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SxSW Interactive is now *officially* useless

Mar 19 2010 Published by under Ramblings

Sadly, I agree… except, the last line in his article… I think TED is done too. ๐Ÿ™

The Interactive portion of the conference drew over 12,000 attendees this year, and the rumor going round is this is the first year that Interactive has more badge-holders than Music. But the same rumor went around last year, and who cares, Music’s still got all the wrist-banders too. Burning Man gets bigger every year, but it’s (reportedly) pretty much as cool as ever. What’s different at this year’s SXSWi?

SXSW Interactive Is Dead

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My new phone is here – The ATT ver of Nexus One

Mar 18 2010 Published by under Ramblings

Posted by richardyoo on Natuba

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The Lego Blocumentary

Mar 18 2010 Published by under Ramblings

I really enjoyed watching this… these LEGO builders are SERIOUS (and apparently all from Washington state):

AFOL A Blocumentary from AFOL on Vimeo.

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Free icecream at #sxsw

Mar 14 2010 Published by under Ramblings

Posted by richardyoo on Natuba

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Free bacon at #sxsw

Mar 14 2010 Published by under Ramblings

Posted by richardyoo on Natuba

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Ustream party #sxsw

Mar 12 2010 Published by under Ramblings

Posted by richardyoo on Natuba

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Evacuation at SxSW #sxsw

Mar 12 2010 Published by under Ramblings

Posted by richardyoo on Natuba

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From the SxSW swag bag

Mar 12 2010 Published by under Ramblings

Posted by richardyoo on Natuba

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Homeland security

Mar 11 2010 Published by under Ramblings

Posted by richardyoo on Natuba

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Things to do in Houston

Mar 10 2010 Published by under Ramblings

Channel 4 in San Antonio did a little video about things to do in Houston…

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Yes – I’ve now found all my email dating back to 1995 – importing them into gmail now

Mar 10 2010 Published by under Ramblings

Posted by richardyoo on Natuba

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ECHO ham radio meeting about ARES homeland security

Mar 08 2010 Published by under Ramblings

Posted by richardyoo on Natuba

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How to make a tape-measure yagi antenna for radio direction finding

Mar 08 2010 Published by under Ramblings

I was fascinated with this antenna design when I saw it at a local ham radio meeting… I love how you can roll it up for travel…

This antenna evolved during my search for a beam with a really great front-to-back ratio to use in hidden transmitter hunts. This design exhibits a very clean pattern and is perfect for RDF use. It trades a bit of forward gain in exchange for a very deep notch in the pattern toward the rear. (You could optimize the design for more forward gain, but at the expense of a really good notch in the pattern toward the rear.) It is a design that can be constructed using only simple hand tools (no machine shop needed) and still perform well. It has been duplicated several dozen times by other local hams and has been successfully used as a club construction project.

TAPE MEASURE BEAM OPTIMIZED FOR RADIO DIRECTION FINDING

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