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NewsNew Teslas delivered with surprise missing USB ports due to parts shortages Pin
Kent Sharkey14-Nov-21 10:31
staffKent Sharkey14-Nov-21 10:31 
NewsHow to make a CPU Pin
Kent Sharkey14-Nov-21 10:31
staffKent Sharkey14-Nov-21 10:31 
NewsNext Windows 11 update makes the Blue Screen of Death blue again Pin
Kent Sharkey14-Nov-21 10:16
staffKent Sharkey14-Nov-21 10:16 
GeneralRe: Next Windows 11 update makes the Blue Screen of Death blue again Pin
Nelek14-Nov-21 11:05
protectorNelek14-Nov-21 11:05 
NewsFBI system hacked to email 'urgent' warning about fake cyberattacks Pin
Kent Sharkey14-Nov-21 10:16
staffKent Sharkey14-Nov-21 10:16 
GeneralRe: FBI system hacked to email 'urgent' warning about fake cyberattacks Pin
Nelek14-Nov-21 11:04
protectorNelek14-Nov-21 11:04 
NewsWhat happens if time gets hacked PinPopular
Kent Sharkey11-Nov-21 11:16
staffKent Sharkey11-Nov-21 11:16 
GeneralRe: What happens if time gets hacked Pin
trønderen11-Nov-21 16:11
trønderen11-Nov-21 16:11 
I am still itching to realize an old project idea:

Around here, radio controlled clocks pick up DCF77 signals, broadcast from Frankfurt am Main at 77,5 kHz. We are so far away, signals so weak that it really doesn't take that much to drown them out.

High quality sound cards are capable of handling a sample rate of 192 kHz. That is enough to generate a 77,5 kHz sine wave. Pick the right stereo amp, and at least it claims to handle a frequency range to 100 kHz or even more. The DCF77 signal format is slightly more complex than morse dih and dahs, but not much.

Assume that I make a small program on my PC to generate an output on my sound card which is a 77,5 kHz signal formatted similar to the DCF77 time signal, but maybe off by an hour or two. I feed the signal into my stereo amp, and hook up an antenna wire to the speaker output. The wire could be stretched out in my attic; wood walls wouldn't dampen the signals that much.

I'd be curious to see if I could confuse the radio clocks of people in my neighborhood. I don't know how common such clocks are around here, but you can buy them in lots of different stores.

I believe that is is this simple, given a good sound card and a modern amp: All it takes is to write a small program to generate a properly formatted 77.5 kHz DCF signal. That shouldn't be too hard. Smile | :)
GeneralRe: What happens if time gets hacked Pin
Bernhard Hiller11-Nov-21 21:33
Bernhard Hiller11-Nov-21 21:33 
GeneralRe: What happens if time gets hacked Pin
Richard Andrew x6414-Nov-21 7:24
professionalRichard Andrew x6414-Nov-21 7:24 
NewsNear-Earth asteroid Kamo’oalewa might be a lost fragment of the moon Pin
Kent Sharkey11-Nov-21 10:46
staffKent Sharkey11-Nov-21 10:46 
GeneralRe: Near-Earth asteroid Kamo’oalewa might be a lost fragment of the moon Pin
David O'Neil11-Nov-21 13:24
professionalDavid O'Neil11-Nov-21 13:24 
NewsScience proves it: Most NFTs are worthless Pin
Kent Sharkey11-Nov-21 10:46
staffKent Sharkey11-Nov-21 10:46 
NewsLinux finally has an impressive cloud-like OS in Ubuntu Web Pin
Kent Sharkey11-Nov-21 10:46
staffKent Sharkey11-Nov-21 10:46 
GeneralRe: Linux finally has an impressive cloud-like OS in Ubuntu Web Pin
vinclaro00111-Nov-21 10:58
vinclaro00111-Nov-21 10:58 
News3 out of 4 IT teams are facing critical skill gaps Pin
Kent Sharkey11-Nov-21 10:46
staffKent Sharkey11-Nov-21 10:46 
GeneralRe: 3 out of 4 IT teams are facing critical skill gaps Pin
Greg Utas11-Nov-21 10:58
professionalGreg Utas11-Nov-21 10:58 
NewsNo, people don’t lie more online (we promise) Pin
Kent Sharkey11-Nov-21 8:01
staffKent Sharkey11-Nov-21 8:01 
NewsMSBuild and 64-bit Visual Studio 2022 Pin
Kent Sharkey11-Nov-21 8:01
staffKent Sharkey11-Nov-21 8:01 
NewsJetBrains debuts new Kotlin compiler K2, Kotlin for WebAssembly, and more Pin
Kent Sharkey11-Nov-21 8:01
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NewsNo news today? Pin
thewazz11-Nov-21 4:00
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GeneralRe: No news today? Pin
Matthew Dennis11-Nov-21 4:43
sysadminMatthew Dennis11-Nov-21 4:43 
GeneralRe: No news today? Pin
thewazz12-Nov-21 5:36
professionalthewazz12-Nov-21 5:36 
NewsPhysicists say they’ve finally solved the teapot effect—for real this time Pin
Kent Sharkey10-Nov-21 10:46
staffKent Sharkey10-Nov-21 10:46 
GeneralRe: Physicists say they’ve finally solved the teapot effect—for real this time Pin
Daniel Pfeffer11-Nov-21 3:30
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