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Interstellar communications
Guest_PhilCo126_*
post May 3 2007, 09:49 AM
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Posted my question here as it's about radio transmissions going beyond our solar system...
We all know the excellent opening scene of the hollywood movie 'Contact' which shows radio & television transmissions going beyond our solar system. But as it's Hollywood, there's certainly a catch. Do our regular TV & radio transmissions really travel so far? I have been working in remote areas and it was hard enough to catch TV signals from stations just 75 kilometers away! I'm sure I've read once that the only signals from Earth leaving our solar system are very strong military Radars and bundles of strong (military) satellite uplinks. unsure.gif
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mcaplinger
post May 3 2007, 01:42 PM
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QUOTE (PhilCo126 @ May 3 2007, 02:49 AM) *
Do our regular TV & radio transmissions really travel so far?

Short answer: maybe. See http://contactincontext.org/cic/v2i1/lucy.pdf for a "yes" and http://www.setileague.org/editor/uhftv.htm for a "no".


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Disclaimer: This post is based on public information only. Any opinions are my own.
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Posts in this topic
- PhilCo126   Interstellar communications   May 3 2007, 09:49 AM
- - Analyst   With my limited knowlegde of physics: In principl...   May 3 2007, 11:12 AM
- - tasp   Wow, 20 years later I get to use my sparky degree ...   May 3 2007, 01:21 PM
|- - Andrei   QUOTE (tasp @ May 3 2007, 03:21 PM) Wow, ...   Feb 16 2009, 03:16 PM
|- - helvick   Excellent Andrei - reminds me of a question in one...   Feb 16 2009, 05:36 PM
|- - mcaplinger   Note that we are rehashing a thread nearly two yea...   Feb 16 2009, 07:04 PM
|- - lyford   QUOTE (mcaplinger @ Feb 16 2009, 11:04 AM...   Feb 16 2009, 07:30 PM
- - mcaplinger   QUOTE (PhilCo126 @ May 3 2007, 02:49 AM) ...   May 3 2007, 01:42 PM
- - edstrick   In the BIS Daedalus Project study of an unmanned 0...   May 4 2007, 06:21 AM
- - Jeffrey   QUOTE (PhilCo126 @ May 3 2007, 04:49 AM) ...   Feb 15 2009, 03:02 AM
- - imipak   QUOTE (Andrei @ Feb 16 2009, 03:16 PM) So...   Feb 16 2009, 08:11 PM
- - Juramike   Back in the 80's there was a Michael Pare rock...   Feb 16 2009, 09:06 PM
- - Okei   QUOTE (Juramike @ Feb 16 2009, 02:06 PM) ...   Aug 1 2009, 04:09 PM

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