John’s Blog

January 31, 2010

Big Brothers..

Filed under: Technology — j0n @ 4:55 pm

.. and space junk.

Interesting Visualisation here.

January 29, 2010

Vices can be good for you…

Filed under: General, Guinness — j0n @ 6:36 pm

I haven’t read the book (to my shame), but here is the post from Jeff, KE9V that explains my title.

January 28, 2010

IEEE – Hams in Haiti

Filed under: Amateur Radio, General — j0n @ 4:47 pm

27 January 2010—Two weeks after a magnitude 7.3 earthquake devastated Haiti, amateur radio operators are hard at work there connecting rescuers within the country and to the outside world. But they are switching gears from rescue mode to recovery mode as aid workers set up camp and distribute food, water, medical supplies, and other aid to survivors. more

January 26, 2010

First tweet from space.

Filed under: Computing, Technology — j0n @ 10:42 am

Spotted on the Southgate Amateur Radio club’s website.

Astronauts aboard the International Space Station received a special software upgrade last week –
personal access to the Internet and the World Wide Web via the ultimate wireless connection.

Expedition 22 Flight Engineer T.J. Creamer, KC5WKI, made first use of the new system on Friday when he posted the first unassisted update to his Twitter account, @Astro_TJ, from the space station.

January 20, 2010

Amateur Satellite – Thesis

Filed under: Amateur Radio, Computing, Technology — j0n @ 10:18 am

I spotted this on the Southgate Amateur Radio Clubs news feed this morning.  Looking forward to learning something by reading it. Pretty cool project though, it has to be said.

A thesis based on the work done for the SO-67 Amateur Satellite is now available here.

Titled “Reusable Software Defined Radio Platform for Micro-satellites” it was written by John Foster Van Wyk of Stellenbosch University and describes the design and implementation of a software platform for the software defined radio (SDR) that formed part of the Sumbandila (SO-67) Amateur Radio satellite.

The Amateur Radio payload on SO-67 operates in conjunction with the Software Defined Receiver project sharing the VHF receiver and UHF transmitter used by the SDR project.

The nominal frequencies for SO-67 are Uplink 145.875 MHz and Downlink 435.345 MHz +/- Doppler shift

Sumbandila (SO-67) Mission Blog

Southern African Amateur Radio Satellite Association (SA AMSAT) and SO-67 schedule

Getting started on Amateur Radio Satellite

January 8, 2010

Speeding fines

Filed under: General, Travel, Work — j0n @ 10:40 pm

I travel one of three different routes into work every day. i tend to follow one most of the time that brings me onto the Waterford City outer ring road. Now, given that I’m not exactly the slowest driver on the road, and have been known to do the odd doughnut myself, I’m astonished at the speed many many cars overtake me at.  If there was ever a speed trap, they’d be done for (and I would probably get a telling off).

Imagine my surprise over the last few days, with the icy threat of mashing their car off a roundabout or off someone elses vehicle, that I’ve been overtaken by precisely 1 driver in the last 3 or 4 days of driving into work.

So my disturbing conclusion is that the speeding fine and penalty points are of little interest to habitual speeders, and that the fine should be increased substantially (think of the price of replacing a panel or wheel or maybe a front bumper).

Now, what can we do with the folks that just drive too slow and hog the white line?

January 2, 2010

Zeniths back!

Filed under: Utility Listening — Tags: , , , — j0n @ 9:50 pm

Zenith Classic Rock

January 1, 2010

Twelve O’Clock in London

Filed under: Weather — Tags: , , , — j0n @ 11:37 am

From Met Eireann

Every day at Twelve O’Clock Greenwich Mean Time, a thousand people from around the world synchronise their efforts in one global act, the launching of meteorological weather balloons.

This non-political agreement between all of the world’s governments forms the theme of Nin Brudermann’s art project “Twelve O’Clock in London”. Nin, sponsored by the New York Foundation for the Arts, has gathered 90 videos of balloon launches from around the world to assemble an illustrative short movie highlighting global scientific co-operation.
For more information visit www.12oclockinlondon.com

Midday launch from Valentia Observatory.

Midday launch at Valentia

Midnight launch from Valentia Observatory.

Midnight launch at Valentia

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