more weeks to find exactly how everything is killing me :-)
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I found this nifty chart of the different electrial frequencies of various electrical appliances. Does anyone know... is there a correllation between higher frequencise (or lower frequencies) and damage to the body? Any general rule?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
What's the frequency?
[SEE LINK BELOW FOR BETTER QUALITY AND GRAPH]
Updated July 7, 2005
Here we will answer the question, "what's the frequency?" for about anything you can think of. Except stuff that's classified of course!
Thanks to Bai from U.K, we've added the 4G frequencies in March 2005!
In 1986, an assailant knocked Dan Rather to the ground in Manhattan and kicked him repeatedly while asking "what's the frequency, Kenneth?" If only Dan had studied this web page, he could have supplied an answer!
Who would do such a thing? And why? No one knew until over 10 years later. In 1997, a psychiatrist was interviewing William Tager, who was in jail at the time for killing an NBC stagehand. According to the psychiatrist, Tager blamed news media for beaming signals into his head and thought that if he could just find out the correct frequency, he could block those signals. Though we don't know whether Tager confessed or not, Dan Rather positively identified Tager as the mystery assailant. R.E.M. later sang a pop song about the incident!
And now back to the subject at hand...
Some of the information below came from Philips, in particular from version 2 of their downloadable RF manual, which we highly recommend that you check out. Unfortunately Philips makes you answer five pages of questions before they give it to you.
Here's an article on a television that has sent out an international distress signal!
For exact television channel frequencies, check out this table.
System Frequency range
RFID systems 125 to 134 kHz
13.56 MHz
UHF (400 to 930 MHz)
2.45 GHz
5.8 GHz
AM radio (United States) 535 kHz to 1.7 MHz
Short wave radio 5.9 to 26.1 MHz
Citizen's band (CB) radio (40 channels) 26.96 to 27.41 MHz
Radio controlled airplanes 27.255 MHz (shared with CB channel 23)
Broadcast television channels 2-6 54 to 88 MHz
FM radio 88 to 108 MHz
Broadcast television, channels 7-13 174 to 220 MHz
Garage door openers, alarms ~40 MHz
Cordless analog phones 40-50 MHz
Baby monitors 49 MHz
Radio controlled airplanes ~72 MHz
Radio controlled cars ~75 MHz
Remote keyless entry (RKE) systems, tire pressure monitoring systems (TPMS) 315 or 433 MHz
UHF television (channels 14-83) 470 to 890 MHz
Wildlife tracking collars 215 to 220 MHz
Cordless phones
864 to 868 MHz
944 to 948 MHz
Cell phones (GSM) 824 to 960 MHz
Air traffic control radar 960 to 1215 MHz
Global positioning system GPS)
1227.6 MHz (L2 band, 20 MHz wide)
1575.42 MHz (L1 band, 20 MHz wide)
Globalstar satellite phone downlink
Globalstar satellite phone uplink 1610.73 to 1625.49 MHz
2484.39 to 249.15 MHz
Cell phones (GSM)
1710 to 1990 MHz
Digital cordless phones 1880 to 1900 MHz
Personal handy phone system (PHS)
1895 to 1918 MHz
Deep space radio communications:
2290 to 2300 MHz
Shared wireless data protocols (Bluetooth, 802.11b): 2402 to 2495 MHz
Microwave ovens 2450 MHz
Satellite radio downlink
XM Satellite
Sirius Satellite
2330 to 2345 MHz
2332.50 to 2,345.00 MHz
2320.00 to 2,332.50 MHz
Radio altimeters 4.2 to 4.4 GHz
802.11a wireless local area network (WLAN) 5.15 to 5.25 GHz (lower band)
5.25 to 5.35 GHz (middle band)
5.725 to 5.825 (upper band)
Satellite radio uplink 7.050 to 7.075 GHz
Police radar
10.525 GHz (X-band)
24.150 (K-band)
33.4 to 36 GHz (Ka-band)
Direct broadcast satellite TV downlink (Europe) 11.7 to 12.5 GHz
Direct broadcast satellite TV downlink (US) 12.2 to 12.7 GHz
Automotive radar, distance sensors 24 GHz
4G (fourth generation wireless)
59 to 64 GHz (U.S. general wireless)
59 to 62 GHz (Europe, WLAN)
62 to 63 GHz (Europe, mobile broadband)
65 to 66 GHz (Europe, mobile broadband)
Automotive radar, adaptive cruise control 76 to 77 GHz
E-band (new FCC-approved ultra-high speed data communications band) 76 GHz, 81 to 86 GHz and 92 to 95 GHz
If you have any information on frequencies that we are missing, please send it to us!
Atmospheric attenuation
Below is a classic figure that dates back to at least 1968, Bean and Dutton's Radio Meteorology: You should be familiar with the water absorption bands at 22, 183 and 323 GHz, and the oxygen absorption regions at 60 and 118 GHz. These regions have higher attenuation, which is not always a bad thing, if you want your signal to die off at close distances, like for example the 4G applications (you don't want the neighbors accessing all of your wireless transmissions, do you?)
Notice the X-axis of the figure below is messed up, when is says "4" it means "40"! The A and B lines are for two types of weather (case A is rain).
[see link below for illustration]
In Reply to: Do Electrical Frequencies Matter to Health? posted by Sapphire [422.2214] on August 16, 2005 at 16:07:57:
According to Robert O. Becker's Cross-Currents, the human
body is most sensitive to frequencies between 0-100Hz and
extremely low power levels. A constant electromagnetic
field at frequencies about about 500Hz should have no effect
on the human body. However, a time-varying field at higher
frequencies is integrated into a lower frequency by the body.
This is the problem with exposure to microwaves used for
communications: they tend to pulse over time in a way which
the body interprets as a lower frequency. Same is true for
radio waves. Power lines are a problem because they switch
at 60Hz here in the US (I think slightly lower in Europe).
According to Becker, this is why suicide rates are higher
among people living near high-tension lines.
The book is a very interesting read. I'd recommend it to
anyone who's skeptical on the possibility of electro-
magnectic radiation affecting the body. Make sure you
read the whole thing through, tho. Even Becker cautions
against condemning most EM radiation without a lot of
further study.
In Reply to: Do Electrical Frequencies Matter to Health? posted by Sapphire [422.2214] on August 16, 2005 at 16:07:57:
Sapphire,
We use electrical current to live..We use 10% or less of our brain to think and learn..The other 90% doesn't just lay around..It works day and night, telling every cell in our body what to do..Breathe, blink your eye, everything..The brain uses electricty to do all functions required to live..Can our electrical frequencies get messed up? Yes, Alzheimer's..Can outside frequencies affect our health? Yes, both good and bad..You posted the bad..To receive the good, take off your shoes and walk barefoot on a nice lawn in a park or on a sandy beach and you are now grounded to the earth..Now tell me, don't you feel good?
Silver Fox!
In Reply to: Re: Do Electrical Frequencies Matter to Health? posted by Steve [3019.1399] on August 17, 2005 at 07:43:56:
Steve,
I didn't post the bad. The article just discusses the frequencies of each electrical appliance.
Sapphire
In Reply to: Re: Do Electrical Frequencies Matter to Health? posted by Colin [1813.2239] on August 17, 2005 at 01:09:42:
Thanks, Colin, looks like a very interesting book!
Sapphire
In Reply to: Re: Do Electrical Frequencies Matter to Health? posted by Colin [1813.2239] on August 17, 2005 at 01:09:42:
Thanks Colin, that book is on my list to read. Becker also wrote a book called 'The Body Electric', did you read it? If so can you say anything about it? I really want to read that one badly.
In Reply to: Re: Do Electrical Frequencies Matter to Health? posted by Sapphire [422.2214] on August 17, 2005 at 08:24:04:
Electrial appliances interfer with the body's electrial frequencies, which is bad for your health :)
Silver Fox!
In Reply to: Re: Do Electrical Frequencies Matter to Health? posted by Steve [3019.1399] on August 17, 2005 at 09:12:32:
Steve,
True, we do rely on electrical appliances, and it's unrealistic to try to avoid all electrical frequencies in this day and age. But I guess I'm wondering if some frequencies are worse than others, and those that are really bad I might make a reasonable effort to avoid as long as it doesn't impact my lifestyle too much. I'm thinking of getting satellite radio in my car, and it just got me wondering.
For example, police who use hand-held radar close to their testicles have a high rate of testicular cancer. (see link below). Just curious about any correlation between certain frequencies and certain health conditions. :)
Sapphire
In Reply to: Do Electrical Frequencies Matter to Health? posted by Sapphire [422.2214] on August 16, 2005 at 16:07:57:
Thanks, Sapphire.
Walt
In Reply to: Re: Do Electrical Frequencies Matter to Health? posted by Sapphire [422.2214] on August 17, 2005 at 09:23:06:
interesting and I probably should have more sympathy for them.
I wonder why this was reported by the dept of pediatrics?
In Reply to: Re: Do Electrical Frequencies Matter to Health? posted by ANN [1003.516] on August 17, 2005 at 11:59:28:
Strange place to hold the old gun ( radar ) :)
Silver Fox!
In Reply to: Re: Do Electrical Frequencies Matter to Health? posted by ANN [1003.516] on August 17, 2005 at 11:59:28:
"interesting and I probably should have more sympathy for them."
lol!
In Reply to: Re: Do Electrical Frequencies Matter to Health? posted by Steve [3019.1399] on August 17, 2005 at 12:33:02:
It is a kind of strange place... I had read that they laid it in their lap when they weren't using it...
In Reply to: Re: Do Electrical Frequencies Matter to Health? posted by gabriella [180.890] on August 17, 2005 at 08:51:31:
Not yet. I've got a copy on hold from the library, but the
current patron who has it won't have to return it until
next month :-( I have a feeling that much of it is already
in Cross-currents, but the Body Electric may be a bit more
in-depth.
In Reply to: Re: Do Electrical Frequencies Matter to Health? posted by Colin [1813.2239] on August 18, 2005 at 21:37:55:
Oh so you have to wait a little longer. Is Cross Currents the later of the two books, I can't remember? If Body Electric is more in depth, I bet it would be really interesting to have that background information which might make the existing knowledge even more meaningful. Either way you can't loose.
In Reply to: Re: Do Electrical Frequencies Matter to Health? posted by gabriella [180.890] on August 18, 2005 at 22:01:42:
Yeah, "The Body Electric" was published in 1985, whilst
"Cross Currents" was about 1991. I figure I can wait a few
more weeks to find exactly how everything is killing me :-)
In Reply to: Re: Do Electrical Frequencies Matter to Health? posted by Colin [1813.2239] on August 23, 2005 at 02:48:18:
Thanks Colin.
I figure I can wait a few
more weeks to find exactly how everything is killing me :-)
Yeah, and even if you do happen to pass on during those few weeks you wouldn't know the difference anyway.
I'm real interested in the subject matter so if you ever want to discuss it I'd be game, even though I'm way behind you in the reading...
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