Radioamadorismo Brasil

tymkrs:

I like ham too, but I think hams are awesome. The new in thing, even if other people might disagree. We’re using invisible RADIO WAVES to contact other people!

*jazz fingers*

Anyway, so we’re talking about ham radio in the Tymkrs IRC at the moment, contacts that @brainwagon’s making via JT65,…

suyhnc:

Seems like IKEA are really shaking things up this year. In addition to the previously announced TV set, they’re also going to release a digital camera made of cardboard called Knäppa (“Snap”). It’ll hold 40 photographs at a time and plugs directly into your USB port. While it’s not the prettiest camera the world has ever seen, I do love the idea of a screen-less digital camera that brings people back to the wait-and-see days of film.

tymkrs:

So to test the thing, the Parallax XBee tutorial suggests setting up the following:

The XBee connected to the PC using the XBee USB adapter (Base node) and a Remote node XBee with power and a loopback will be used. For the loopback, DOUT is connected to DIN which will cause any received data…

old-ads-and-mags:

Popular Electronics, 1958

old-ads-and-mags:

Popular Electronics, 1958

vinylespassion:

A girl DJ spinning some discs, 1953.

vinylespassion:

A girl DJ spinning some discs, 1953.

glowbugs:

Bug Key and Old Radio (by George N2JNZ)

glowbugs:

Bug Key and Old Radio (by George N2JNZ)

old-ads-and-mags:

The Radio Hat - Radio-Electronics, 1949

old-ads-and-mags:

The Radio Hat - Radio-Electronics, 1949

tymkrs:

So you guys remember when I said I wanted to revamp the LED Heart thing and make it somewhat usable for actual students to learn rhythms from. So first I had to know what timing segments to watch out for.

Essentially all rhythms determine what their ECG counterpart looks like - it could…