Hard Light Productions Forums
Off-Topic Discussion => General Discussion => Topic started by: aldo_14 on August 11, 2004, 05:00:14 am
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http://www.theregister.co.uk/2004/08/10/alien_hunt_wrong_freq/
Interesting. Sort of. Maybe.
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I always did say that the Drake's calculations mistakenly assumed that aliens developed their tech in a simlar way to ours and just kept increasing the power until there would be no way we could miss them.
Seems like Drake has finally noticed the mistake himself :)
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Not everone uses cable TV. Digital Satellite is just as popular, and even if the satellites just transmit to earth, the ground based transmiters send out into space. Radio stations are changing to digital now too, which must have some advantages for extra-terestrial 'reception'.
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Originally posted by beatspete
Not everone uses cable TV. Digital Satellite is just as popular, and even if the satellites just transmit to earth, the ground based transmiters send out into space. Radio stations are changing to digital now too, which must have some advantages for extra-terestrial 'reception'.
But satellite communication uses directed EM waves which rewuires less power output to succesfully transmit a clear signal. The result are radiation cones which cover only a small portion of the sky and has a rather weak signal strength.
Terrestrial TV on the other hand uses omnidirectional antennaes which have a power output in the MegaWatt region....thus acting as "bright" beacon in the radio spectrum.
But IIRC, there are plans from the SETI project to send an "official handshake signal" into space, over a longer period of time.
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Originally posted by Col. Fishguts
But IIRC, there are plans from the SETI project to send an "official handshake signal" into space, over a longer period of time.
Wasn't the T-V war started by a communications mishap? :nervous: