| Author |
Message |
    
Rfman100
| | Posted on Sunday, September 14, 2003 - 2:56 pm: | 
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Noise may be a very strange thing to talk about. However, with no noise, no radio signal.
I spent many evening doing nothing, but listening to radio noise from different channels or bands with the squlch down of course.
When it comes to noise, I had hear many strange sounds. Sometimes I try to figure out if it's a man made radio signal or natural space noise.
A few times I had heard bubbling sounds, sometimes what I call a train sound (a repeated shu-shu-shu sound, and almarm or beacon sounds.
I wonder if a radio operator could get more information about wealther or band conditions in his area by listening to the noise he or she hears?
Also, digital radio do not make different types of noises. They seem to always sound the same.
What do you think? |
Bman02
| | Posted on Sunday, September 14, 2003 - 9:28 pm: |
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hmmmmmm....... |
Bruce
| | Posted on Monday, September 15, 2003 - 5:12 am: |
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Its a know fact twisters generate noise in the 27-72 mhz region. Back 30 years ago several stories appaired about using a TV set on a blank CH2 looking for changes in background noise to pedict how close one might be. Noise changes with bandwidth so what you hear on AM would sound diffrent on CW so you would have to use the same bandwidth for all your readings. Do I think you might get some sort of usefull information lissing to background noise ? probley not. |
ryan
| | Posted on Monday, September 15, 2003 - 10:38 am: |
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when i go to sleep i put my clock radio on a blank channel on the bottom of the dial. the noise helps me sleep and blocks out that constant ringing in my ears and the voices |
Mr_Rf
| | Posted on Tuesday, September 16, 2003 - 4:01 am: |
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Hey Ryan,
That "ringing in the ears" is consistant with radio operators who have mastered the art of tuning out the background noise while talking on the radio... ex. wife, kids, dog, tornados, bleedover from Ch 6 and 26, etc.!!!
I find that sleeping with a pillow speaker and the radio tuned to the local "all night" CB channel also works well!
Hmmmm, well maybe not, ,look at the time I posted this message. I must be crazy! LOL |
ryan
| | Posted on Tuesday, September 16, 2003 - 12:57 pm: |
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i got the ringing in my ears from years of playing punk rock and metal, mostly on drums.
mmmmmmm cymbal wash |
questionman
| | Posted on Tuesday, September 16, 2003 - 1:25 pm: |
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All the planets in our solar generate "noise".
If you have a radio that can go up around 30mhz tune around up there till you hear a noise that sounds like waves crashing on a beach. That is the the sound of Saturn !!!
There is a whole bunch of sounds like that!!! Also get a copy of "Music of The Spheres" that recording has tons of strange sounds that come from space as well as our own blue planet!!
To check out more wiered sounds type "elf" in your search and have fun |
questionman
| | Posted on Tuesday, September 16, 2003 - 1:27 pm: |
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OOOPPPPS I should have said "Extremly low frequency" not "elf" |
Rfman100
| | Posted on Thursday, September 18, 2003 - 12:06 am: |
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Questionman: Thank you for that wonderful information on planet noise. I will try that one they. Maybe you should post that information in a radio magazine!
Well, I wouldn't be supprise, if the topic of noise when it comes to radios, gets a reward for the strangest of all radio topics.
But, hey, didn't people like Edison & the guy from Russia name Telsa study radio noise?
And how about tube radios, what kind of noise do they give you?
I do have an old analog shortwave radio with a dial. And every once in a while I like to play with the dial just to make those whiselling weird sounds. I love them. Sometimes you hear them in old sci-fi movies.
I LOVE IT!
73 |
Mr_Rf
| | Posted on Thursday, September 18, 2003 - 12:12 am: |
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In fact, if you search "Jansky radio antenna" in your favorite search engine you should find info on the very first antenna system designed to receive space noise that was built by a man named Jansky.
The last time I was at the Greenbank Radio Observatory in West Virginia the antenna was on display as you entered the facility.
Your history lesson for the day! |
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