Discussion:
Finally: looking for alien FM radio stations?
(too old to reply)
Jan Panteltje
2024-08-27 04:58:15 UTC
Permalink
First low frequency search for alien technology in distant galaxies
https://www.sciencedaily.com/releases/2024/08/240826131354.htm
Innovative study used the MWA's large field of view (FOV),
allowing the team to cover about 2,800 galaxies in one observation
Source:
SETI Institute
Summary:
Researchers have announced a groundbreaking study using the Murchison Widefield Array (MWA) in Western Australia.
The research is the first to search for signs of alien technology in galaxies beyond our own,
focusing on low radio frequencies (100 MHz).
This new approach looks at distant galaxies,
making it one of the most detailed searches for super civilizations -- those more advanced than ours.

Would be interesting to hear their music :-)
boB
2024-08-27 05:04:39 UTC
Permalink
Post by Jan Panteltje
First low frequency search for alien technology in distant galaxies
https://www.sciencedaily.com/releases/2024/08/240826131354.htm
Innovative study used the MWA's large field of view (FOV),
allowing the team to cover about 2,800 galaxies in one observation
SETI Institute
Researchers have announced a groundbreaking study using the Murchison Widefield Array (MWA) in Western Australia.
The research is the first to search for signs of alien technology in galaxies beyond our own,
focusing on low radio frequencies (100 MHz).
This new approach looks at distant galaxies,
making it one of the most detailed searches for super civilizations -- those more advanced than ours.
Would be interesting to hear their music :-)
I can't even listen to shortwave much anymore because of all the EMI
in town !

boB
Jan Panteltje
2024-08-27 05:49:15 UTC
Permalink
On a sunny day (Mon, 26 Aug 2024 22:04:39 -0700) it happened boB
Post by boB
Post by Jan Panteltje
First low frequency search for alien technology in distant galaxies
https://www.sciencedaily.com/releases/2024/08/240826131354.htm
Innovative study used the MWA's large field of view (FOV),
allowing the team to cover about 2,800 galaxies in one observation
SETI Institute
Researchers have announced a groundbreaking study using the Murchison Widefield Array (MWA) in Western Australia.
The research is the first to search for signs of alien technology in galaxies beyond our own,
focusing on low radio frequencies (100 MHz).
This new approach looks at distant galaxies,
making it one of the most detailed searches for super civilizations -- those more advanced than ours.
Would be interesting to hear their music :-)
I can't even listen to shortwave much anymore because of all the EMI
in town !
Not only in town here, in house too:
Loading Image...
and that is only a few of those in use...
OTOH over here, outside with a decent antenna, it is still OK.
Small village, some distance between the houses..

At higher frequencies we have radar interference..
rotating radar just a few km away from here.
Some satellite channels have an interference pattern every few seconds.
https://www.panteltje.nl/pub/radar10_135000000_versus_1374576000_MHz.mpeg
Loading Image...
that 1.37 GHz is picked up by the satellite dish LNB output
Some radios pick it up to and give a click every few seconds,
very strong radar signal, rotating dish.
I think they are looking for Russian or US invaders...
:-)
john larkin
2024-08-27 13:58:42 UTC
Permalink
Post by Jan Panteltje
On a sunny day (Mon, 26 Aug 2024 22:04:39 -0700) it happened boB
Post by boB
Post by Jan Panteltje
First low frequency search for alien technology in distant galaxies
https://www.sciencedaily.com/releases/2024/08/240826131354.htm
Innovative study used the MWA's large field of view (FOV),
allowing the team to cover about 2,800 galaxies in one observation
SETI Institute
Researchers have announced a groundbreaking study using the Murchison Widefield Array (MWA) in Western Australia.
The research is the first to search for signs of alien technology in galaxies beyond our own,
focusing on low radio frequencies (100 MHz).
This new approach looks at distant galaxies,
making it one of the most detailed searches for super civilizations -- those more advanced than ours.
Would be interesting to hear their music :-)
I can't even listen to shortwave much anymore because of all the EMI
in town !
https://www.panteltje.nl/pub/floor_warts_IXIMG_0790.JPG
and that is only a few of those in use...
OTOH over here, outside with a decent antenna, it is still OK.
Small village, some distance between the houses..
At higher frequencies we have radar interference..
rotating radar just a few km away from here.
Seems like one could make a PPI display, using a nearby airport radar
transmitter and your own receiver.
Jan Panteltje
2024-08-28 06:07:35 UTC
Permalink
On a sunny day (Tue, 27 Aug 2024 06:58:42 -0700) it happened john larkin
Post by john larkin
Post by Jan Panteltje
On a sunny day (Mon, 26 Aug 2024 22:04:39 -0700) it happened boB
Post by boB
Post by Jan Panteltje
First low frequency search for alien technology in distant galaxies
https://www.sciencedaily.com/releases/2024/08/240826131354.htm
Innovative study used the MWA's large field of view (FOV),
allowing the team to cover about 2,800 galaxies in one observation
SETI Institute
Researchers have announced a groundbreaking study using the Murchison Widefield Array (MWA) in Western Australia.
The research is the first to search for signs of alien technology in galaxies beyond our own,
focusing on low radio frequencies (100 MHz).
This new approach looks at distant galaxies,
making it one of the most detailed searches for super civilizations -- those more advanced than ours.
Would be interesting to hear their music :-)
I can't even listen to shortwave much anymore because of all the EMI
in town !
https://www.panteltje.nl/pub/floor_warts_IXIMG_0790.JPG
and that is only a few of those in use...
OTOH over here, outside with a decent antenna, it is still OK.
Small village, some distance between the houses..
At higher frequencies we have radar interference..
rotating radar just a few km away from here.
Seems like one could make a PPI display, using a nearby airport radar
transmitter and your own receiver.
I was wondering if I used a variable delay and transmitted the pattern back if I could make them see invaders coming.
Bit of timing for direction...
I know it is evil...
But any enemy could create the illusion of invasions?
There are some knowledgeable radar people here, probably see a problem with this method?
A 10 dollar box a few km away all you need?
Joe Gwinn
2024-08-28 15:23:48 UTC
Permalink
Post by Jan Panteltje
On a sunny day (Tue, 27 Aug 2024 06:58:42 -0700) it happened john larkin
Post by john larkin
Post by Jan Panteltje
On a sunny day (Mon, 26 Aug 2024 22:04:39 -0700) it happened boB
Post by boB
Post by Jan Panteltje
First low frequency search for alien technology in distant galaxies
https://www.sciencedaily.com/releases/2024/08/240826131354.htm
Innovative study used the MWA's large field of view (FOV),
allowing the team to cover about 2,800 galaxies in one observation
SETI Institute
Researchers have announced a groundbreaking study using the Murchison Widefield Array (MWA) in Western Australia.
The research is the first to search for signs of alien technology in galaxies beyond our own,
focusing on low radio frequencies (100 MHz).
This new approach looks at distant galaxies,
making it one of the most detailed searches for super civilizations -- those more advanced than ours.
Would be interesting to hear their music :-)
I can't even listen to shortwave much anymore because of all the EMI
in town !
https://www.panteltje.nl/pub/floor_warts_IXIMG_0790.JPG
and that is only a few of those in use...
OTOH over here, outside with a decent antenna, it is still OK.
Small village, some distance between the houses..
At higher frequencies we have radar interference..
rotating radar just a few km away from here.
Seems like one could make a PPI display, using a nearby airport radar
transmitter and your own receiver.
I was wondering if I used a variable delay and transmitted the pattern back if I could make them see invaders coming.
Bit of timing for direction...
I know it is evil...
But any enemy could create the illusion of invasions?
There are some knowledgeable radar people here, probably see a problem with this method?
A 10 dollar box a few km away all you need?
Been around for ages:

.<https://apps.dtic.mil/sti/citations/ADD009662>

Joe Gwinn
Jeroen Belleman
2024-08-28 20:37:09 UTC
Permalink
Post by Joe Gwinn
Post by Jan Panteltje
On a sunny day (Tue, 27 Aug 2024 06:58:42 -0700) it happened john larkin
Post by john larkin
Post by Jan Panteltje
On a sunny day (Mon, 26 Aug 2024 22:04:39 -0700) it happened boB
Post by boB
Post by Jan Panteltje
First low frequency search for alien technology in distant galaxies
https://www.sciencedaily.com/releases/2024/08/240826131354.htm
Innovative study used the MWA's large field of view (FOV),
allowing the team to cover about 2,800 galaxies in one observation
SETI Institute
Researchers have announced a groundbreaking study using the Murchison Widefield Array (MWA) in Western Australia.
The research is the first to search for signs of alien technology in galaxies beyond our own,
focusing on low radio frequencies (100 MHz).
This new approach looks at distant galaxies,
making it one of the most detailed searches for super civilizations -- those more advanced than ours.
Would be interesting to hear their music :-)
I can't even listen to shortwave much anymore because of all the EMI
in town !
https://www.panteltje.nl/pub/floor_warts_IXIMG_0790.JPG
and that is only a few of those in use...
OTOH over here, outside with a decent antenna, it is still OK.
Small village, some distance between the houses..
At higher frequencies we have radar interference..
rotating radar just a few km away from here.
Seems like one could make a PPI display, using a nearby airport radar
transmitter and your own receiver.
I was wondering if I used a variable delay and transmitted the pattern back if I could make them see invaders coming.
Bit of timing for direction...
I know it is evil...
But any enemy could create the illusion of invasions?
There are some knowledgeable radar people here, probably see a problem with this method?
A 10 dollar box a few km away all you need?
.<https://apps.dtic.mil/sti/citations/ADD009662>
Joe Gwinn
So much *said* in the abstract that I fear the worst for the rest.
What an awful piece of prose!

Jeroen Belleman
Joe Gwinn
2024-08-28 22:26:23 UTC
Permalink
On Wed, 28 Aug 2024 22:37:09 +0200, Jeroen Belleman
Post by Jeroen Belleman
Post by Joe Gwinn
Post by Jan Panteltje
On a sunny day (Tue, 27 Aug 2024 06:58:42 -0700) it happened john larkin
Post by john larkin
Post by Jan Panteltje
On a sunny day (Mon, 26 Aug 2024 22:04:39 -0700) it happened boB
Post by boB
Post by Jan Panteltje
First low frequency search for alien technology in distant galaxies
https://www.sciencedaily.com/releases/2024/08/240826131354.htm
Innovative study used the MWA's large field of view (FOV),
allowing the team to cover about 2,800 galaxies in one observation
SETI Institute
Researchers have announced a groundbreaking study using the Murchison Widefield Array (MWA) in Western Australia.
The research is the first to search for signs of alien technology in galaxies beyond our own,
focusing on low radio frequencies (100 MHz).
This new approach looks at distant galaxies,
making it one of the most detailed searches for super civilizations -- those more advanced than ours.
Would be interesting to hear their music :-)
I can't even listen to shortwave much anymore because of all the EMI
in town !
https://www.panteltje.nl/pub/floor_warts_IXIMG_0790.JPG
and that is only a few of those in use...
OTOH over here, outside with a decent antenna, it is still OK.
Small village, some distance between the houses..
At higher frequencies we have radar interference..
rotating radar just a few km away from here.
Seems like one could make a PPI display, using a nearby airport radar
transmitter and your own receiver.
I was wondering if I used a variable delay and transmitted the pattern back if I could make them see invaders coming.
Bit of timing for direction...
I know it is evil...
But any enemy could create the illusion of invasions?
There are some knowledgeable radar people here, probably see a problem with this method?
A 10 dollar box a few km away all you need?
.<https://apps.dtic.mil/sti/citations/ADD009662>
Joe Gwinn
So much *said* in the abstract that I fear the worst for the rest.
What an awful piece of prose!
DTIC reports have a wide range. A few are very good. Typically the
best are somebody's PhD thesis.

Joe Gwinn
Jan Panteltje
2024-08-29 05:43:03 UTC
Permalink
On a sunny day (Wed, 28 Aug 2024 11:23:48 -0400) it happened Joe Gwinn
Post by Joe Gwinn
Post by Jan Panteltje
On a sunny day (Tue, 27 Aug 2024 06:58:42 -0700) it happened john larkin
Post by john larkin
Post by Jan Panteltje
On a sunny day (Mon, 26 Aug 2024 22:04:39 -0700) it happened boB
Post by boB
Post by Jan Panteltje
First low frequency search for alien technology in distant galaxies
https://www.sciencedaily.com/releases/2024/08/240826131354.htm
Innovative study used the MWA's large field of view (FOV),
allowing the team to cover about 2,800 galaxies in one observation
SETI Institute
Researchers have announced a groundbreaking study using the Murchison Widefield Array (MWA) in Western Australia.
The research is the first to search for signs of alien technology in galaxies beyond our own,
focusing on low radio frequencies (100 MHz).
This new approach looks at distant galaxies,
making it one of the most detailed searches for super civilizations -- those more advanced than ours.
Would be interesting to hear their music :-)
I can't even listen to shortwave much anymore because of all the EMI
in town !
https://www.panteltje.nl/pub/floor_warts_IXIMG_0790.JPG
and that is only a few of those in use...
OTOH over here, outside with a decent antenna, it is still OK.
Small village, some distance between the houses..
At higher frequencies we have radar interference..
rotating radar just a few km away from here.
Seems like one could make a PPI display, using a nearby airport radar
transmitter and your own receiver.
I was wondering if I used a variable delay and transmitted the pattern back if I could make them see invaders coming.
Bit of timing for direction...
I know it is evil...
But any enemy could create the illusion of invasions?
There are some knowledgeable radar people here, probably see a problem with this method?
A 10 dollar box a few km away all you need?
.<https://apps.dtic.mil/sti/citations/ADD009662>
https://apps.dtic.mil/sti/pdfs/ADD009662.pdf
BlobNotFoundThe specified blob does not exist. RequestId:7b3cfb15-401e-003d-13d5-f9a577000000 Time:2024-08-29T05:37:10.8033209Z
pdf not found...

# wget https://apps.dtic.mil/sti/pdfs/ADD009662.pdf
--2024-08-29 07:36:30-- https://apps.dtic.mil/sti/pdfs/ADD009662.pdf
Resolving apps.dtic.mil (apps.dtic.mil)... 20.141.12.34, 2001:489a:3403::5e7
Connecting to apps.dtic.mil (apps.dtic.mil)|20.141.12.34|:443... connected.
HTTP request sent, awaiting response... 403 Forbidden
2024-08-29 07:36:31 ERROR 403: Forbidden.

Article has lots of lawyer babble...
probabbly writen by a patent lawyer
:-)

Martin Brown
2024-08-27 10:26:06 UTC
Permalink
Post by Jan Panteltje
First low frequency search for alien technology in distant galaxies
https://www.sciencedaily.com/releases/2024/08/240826131354.htm
Innovative study used the MWA's large field of view (FOV),
allowing the team to cover about 2,800 galaxies in one observation
There have been survey instruments in that band before notably T151 at
Cambridge which used the baseline of the Ryle 5km telescope:

https://www.astro.phy.cam.ac.uk/research/ResearchFacilities/surveys-and-catalogues/6c
Post by Jan Panteltje
SETI Institute
Researchers have announced a groundbreaking study using the Murchison Widefield Array (MWA) in Western Australia.
The research is the first to search for signs of alien technology in galaxies beyond our own,
focusing on low radio frequencies (100 MHz).
This new approach looks at distant galaxies,
making it one of the most detailed searches for super civilizations -- those more advanced than ours.
Would be interesting to hear their music :-)
Don't get your hopes up. The best chance is relatively nearby stars in
our own galaxy - might just have enough signal to noise then if we catch
them between inventing the thermionic valve and discovering spread
spectrum transmission (which looks like noise anyway).
--
Martin Brown
Jan Panteltje
2024-08-27 10:58:09 UTC
Permalink
On a sunny day (Tue, 27 Aug 2024 11:26:06 +0100) it happened Martin Brown
Post by Martin Brown
Post by Jan Panteltje
First low frequency search for alien technology in distant galaxies
https://www.sciencedaily.com/releases/2024/08/240826131354.htm
Innovative study used the MWA's large field of view (FOV),
allowing the team to cover about 2,800 galaxies in one observation
There have been survey instruments in that band before notably T151 at
https://www.astro.phy.cam.ac.uk/research/ResearchFacilities/surveys-and-catalogues/6c
Yes, am looking at the source lists now
https://www.mrao.cam.ac.uk/projects/surveys/6C/data/README
no attempt at demodulation as far as I can see.
A lot happened as to modulation since the 1993
Also with all that quantum stuff we may get better sensitivity these days..
Post by Martin Brown
Post by Jan Panteltje
SETI Institute
Researchers have announced a groundbreaking study using the Murchison Widefield Array (MWA) in Western Australia.
The research is the first to search for signs of alien technology in galaxies beyond our own,
focusing on low radio frequencies (100 MHz).
This new approach looks at distant galaxies,
making it one of the most detailed searches for super civilizations -- those more advanced than ours.
Would be interesting to hear their music :-)
Don't get your hopes up. The best chance is relatively nearby stars in
our own galaxy - might just have enough signal to noise then if we catch
them between inventing the thermionic valve and discovering spread
spectrum transmission (which looks like noise anyway).
We, earthlings, make so many RF noises... as do our spacecraft.
Voyager is still calling home I think.
There could be alien radio probes on their way.
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