Rich
Full Member
RF Systems Engr (retired)
Posts: 112
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Post by Rich on Feb 27, 2020 7:23:56 GMT
On another website, Paul B. Walker posted:
"Family Hears Music & Preaching Coming From Bedroom Walls"
>A family in Chicago is hearing music and preaching in their daughters >bedroom wall at night.. cant figure out what is causing it.. They call >police, a report is taken and while the office is there, he hears a >commercial for a radio station.. they live within spitting distance of >the separate night site for 50kw 6 tower WYLL 1160 abc7chicago.com/5951830/?fbclid ... NG5UyWfBWM ________________ My response: Probably this house was not located near the city center of Lockport, IL, which would put it ~3.5 miles from the WYLL nighttime array on its bearing of about 285°. WYLL radiates less than 100 watts toward that sector. WYLL has a nighttime field intensity of about 16 mV/m in the Lockport ZIP, where WLS has the greatest day/night field there: 123 mV/m. The graphic below shows a more likely situation for this "phenomenon" by comparing the fields in housing subdivisions less than 2 miles from WYLL along their bearing toward Lockport (in a null of their DA pattern) vs. toward the North, in their major lobe. The subdivision indicated by the yellow line from WYLL in the graphic receives a nighttime field of about 2 V/m from WYLL, which is >16X greater than the field there of WLS, and rather likely to produce blanketing interference. WYLL's field at a distance of 1.12 miles on a bearing toward Lockport city center is shown by the orange line from WYLL and orange text on the graphic. At that location, the field from WYLL is only about 1.2X greater than from WLS. The difference between those two close-in fields from WYLL is about 22.5 dB. /Rich
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Post by mark on Feb 27, 2020 21:43:31 GMT
Maybe there is such a thing as a haunted house. Have they tried ghostbusters  |
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Post by Admin on Feb 28, 2020 0:26:17 GMT
As a teenager, my wife lived near a local AM, WCUE 1150 kHz. The antenna tower was less than half a mile away.
The AM's signal could be heard on the telephone, record player and sometimes the metal caps on her teeth!
Makes ya wonder what all that RF is doing to us...
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Post by mark on Feb 28, 2020 5:11:36 GMT
That RF is not hurting you. Radio frequencies like AM FM radio bands, TV etc since it was invented has never had concerns attached to it of being harmful.
CB also.
But the higher the frequency the more energy behind it and what you should worry about is micro-waves in the 2.4 to 2.5 gHz range and 5 gHz range that wi-fi, bluetooth, cell phones are operating at. Even cordless home phones also work at that range.
You have these smartphones with you 24/7, all emitting radiation all the time and a bluetooth thing stuck in your ear against your brain, and the wi-fi on all the time instead of just using an ethernet cable instead. That's what's hurting you. The wi-fi is everywhere. And you are listening to the companies telling you with a vested interest that it's harmless.....how long did the cigarette companies try to tell you their product was harmless!
I believe that 35 years from now there will be a flood of brain cancer patients when the true result of all this shows itself. I don't, never will, have a smartphone, I use a cable from the box to the computer and won't use bluetooth. I can't control the secondhand radiation I get from others but I can lessen the amount I get by not doing it myself. The only radiation in my place is my station.
The CN tower in Toronto has many radio and TV stations broadcasting at 50,000 watts+ and the observation deck is right up there and never have you heard all that RF is hurting you if you go there.
By the way this new forum lay out is cool. My post comes out blue and others green. Nice.
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Post by thelegacy on Feb 28, 2020 16:35:51 GMT
Bluetooth transmitters Bluetooth earpieces and even Wi-Fi has a power level less than 100 milliwatts. I doubt it will hurt much of anything. Usually the range of these devices are around 30 ft but in some cases when the libraries or motels have their Wi-Fi units on a pole outside line of sight the range can be greater. I've seen it up to about a hundred feet.
I would be more concerned if you lived right next to a cell phone tower but even then people who have lived next to them have not had any problems but I will say this much they sure do interfere with electronics if you live too close to a cell phone tower. It can cause your tablet to turn off on its own and cause issues with your test equipment.
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