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originally posted by: charlyv
Just so some think I might be talking through a tinfoil hat, I have a lot of experience with VHF radio's in the service.
The VFO is an integral component of a superhetrodyne radio. In simple radios, the VFO it a single tuning mechanism (Variable Frequency Oscillator), that phases itself with the tuned signal.
In very complex and high quality radios (especially Military), there are multiple VFO's. The operator tunes in using the main frequency dial, and the VFO's on the sidebands attempt to pull the reception into the best tuning center it can be. When a signal is not present, these VFO's can fight each other trying to pull the signal to center and produce these kind of "singing" sounds. I have heard them thousands of times, and when hearing what they played into the video, it sounded just like some I have heard.
Sound needs something to travel through to get from one place to another. On the Moon, since there is no air, sound cannot travel above the surface. So, there are no sounds on the surface of the Moon. When the Apollo astronauts were out on the Moon’s surface, they could only talk to each other, and to mission control, by using the radios in their air filled helmets. Even when the astronaut in the photo to the right, hit a metal tube into the ground with a hammer, no sound was made.
originally posted by: Involutionist
...but there is no sound in space.
"Is there any sound on the Moon?"
Sound needs something to travel through to get from one place to another. On the Moon, since there is no air, sound cannot travel above the surface. So, there are no sounds on the surface of the Moon. When the Apollo astronauts were out on the Moon’s surface, they could only talk to each other, and to mission control, by using the radios in their air filled helmets. Even when the astronaut in the photo to the right, hit a metal tube into the ground with a hammer, no sound was made.
In the video above, they state: "It their headsets, it sounded like a 'whoo whoo' kind of noise."
www.moonzoo.org...
If it's two radios interacting then why is the same sound heard by Cassini at Saturn?
originally posted by: blackthorne
so,was it dark side of the moon? space oddity? or even rocket man?
i was actually going to post this but was having computer issues1 thanks for doing so. interesting story!
originally posted by: Astyanax
a reply to: charlyv
If it's two radios interacting then why is the same sound heard by Cassini at Saturn?
Because Saturn is a radio.
The ‘sounds’ of Saturn people have been posting here are actually radio waves. Here is a frequency chart of Saturn’s radio emissions, as heard by the Cassini spacecraft. You will notice that the output is strongest (red areas) in the 45-70kHz range.
originally posted by: Elementalist
Anything classified should be illegal.
Especially when tax payers paid for most of the trips.
originally posted by: charlyv
originally posted by: Astyanax
a reply to: charlyv
If it's two radios interacting then why is the same sound heard by Cassini at Saturn?
Because Saturn is a radio.
The ‘sounds’ of Saturn people have been posting here are actually radio waves. Here is a frequency chart of Saturn’s radio emissions, as heard by the Cassini spacecraft. You will notice that the output is strongest (red areas) in the 45-70kHz range.
Wasn't my quote. (hate the way ATS sometimes drops a preceding quote). Anyway, I had already pointed out to poster that this was a magnetic effect, and the Moon has no magnetic field. There are also quotes on here of "other than NASA" theories that the Cassini effect was from the collision of micro meteor particles, however NASA seems firmly in the magnetic field theory.
a reply to: charlyv
posted on Feb, 21 2016 @ 07:01 PM link quote reply
originally posted by: Astyanax
a reply to: charlyv
Because Saturn is a radio.
The ‘sounds’ of Saturn people have been posting here are actually radio waves. Here is a frequency chart of Saturn’s radio emissions, as heard by the Cassini spacecraft. You will notice that the output is strongest (red areas) in the 45-70kHz range.
Wasn't my quote. (hate the way ATS sometimes drops a preceding quote). Anyway, I had already pointed out to poster that this was a magnetic effect, and the Moon has no magnetic field. There are also quotes on here of "other than NASA" theories that the Cassini effect was from the collision of micro meteor particles, however NASA seems firmly in the magnetic field theory.
originally posted by: smurfy
There is sound in space, you just can't hear it without a pickup.