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#101 |
diyAudio Moderator
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Hi Enzo,
We are also living longer these days, and we are eating more chemicals in our food, although that has lately been cut way back. Cancer takes many years to develop too. I don't know if these things affected your numbers, but it is something to consider as outside variables that were not controlled. -Chris
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"Just because you can, doesn't mean you should" © my Wife |
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#102 | |
diyAudio Member
Join Date: Oct 2011
Location: Warsaw
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#103 |
diyAudio Member
Join Date: Jul 2005
Location: West Virginia panhandle
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The cell phones of 20 to 25 years ago put out a lot more RF power (up to 1.2 watts) for longer periods of time (the old analog phones transmitted continuously when in a call), than more modern phones. The total RF exposure dose had dropped continuously with each "G" primarily because of the increased user base. This forces more towers at lower power levels to avoid interference.
The frequency band used for all early cellular phones was below 1 GHz. Modern phones tend toward keeping the phone calls on the frequencies near or above 2 GHz. The skin penetration depth of RF energy drops off as the RF frequency is increased. Very little energy from a 1700-2400 MHz phone penetrates the skull. Some of this research was done in one of our labs. The same penetration depth issue will force a phone call to a lower frequency bald if the phone is inside a concrete building since the higher frequencies don't penetrate concrete as well either. This guy worked in the same plant where I worked. There was an "incident" one night where a preserved head from a human cadaver was delivered to the plant, which set off some serious rumors. I talked to one of his technicians, and found that it was used to measure the RF penetration of the human skull, such that an "artificial head" could be designed for research. https://ieeexplore.ieee.org/author/37284151200 After he left another PHD guy took his place. His field was microbiology. I got to teach him how to operate, set up and measure our two way radio equipment.
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Tubelab, it's 5 year mission. To explore strange new tubes, to seek out new circuits and topologies, to boldly go where no tube has gone before...... Last edited by Tubelab_com; 20th October 2019 at 02:41 PM. |
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#104 |
diyAudio Member
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we’re going to see 5G added to laptops. This means even more traffic for the cell phone towers. we’ll need more towers and that’s going to be expensive. maybe there will be more network consolidation. the industry will split into backbone networks and cell phone companies who do not own them. this will change how frequency allocations are auctioned. when does 5G (6G......) merge with wifi in public spaces ? aren’t there just as many concerns about exposure to wifi?
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"The test of the machine is the satisfaction it gives you. There isn't any other test. If the machine produces tranquility it's right. If it disturbs you it's wrong until either the machine or your mind is changed." Robert M Pirsig. |
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#105 | ||
diyAudio Member
Join Date: Jul 2005
Location: West Virginia panhandle
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The phone carriers (networks) make their money moving data, phone calls and texts are barely break even features today. The USA is quietly losing TV channel space to the phone companies. TV channels 52 through 83 disappeared a while back, and stations on RF channels 37 though 51 are now being relocated to a new frequency or shut down to accommodate T-Mobile's network expansion. 5G spectrum is available, but huge challenges exist in many markets since the higher frequencies do not penetrate concrete or dense foliage. The desirable tower to user frequencies are currently occupied by TV channels.....Expect to see terrestrial TV vanish, or morph into a cellular like short range system.....There are proposals for exactly that on the horizon. As with DTV where channels 52 through 69 were reallocated, this will coincide with a shift to 4K or higher DTV resolution. Quote:
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Tubelab, it's 5 year mission. To explore strange new tubes, to seek out new circuits and topologies, to boldly go where no tube has gone before...... |
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#106 | |
diyAudio Member
Join Date: Apr 2016
Location: Worcestershire, UK
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And 3G and 4G systems in use by Billions of humans has not killed them, not animals nearby. So until then, I remain relaxed. |
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#107 |
diyAudio Member
Join Date: Apr 2017
Location: greater Kansas City
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That's what keeps trickling into my brain -- when I think of all the RF, of all manner of wavelengths, that I must have absorbed -- all those projects over all those years .. Granted, they were all low power, but those hours and hours spent hunched over something misbehaving and spilling RF every which way .. It simply isn't possible to develop anything electronic without considerable exposure. And I have yet to see anyone wearing a 'shield suit' while they poke around with their 'scope probe. Guess I'll remain relaxed, too.
-RS |
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#108 | |
diyAudio Member
Join Date: Oct 2011
Location: Warsaw
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How come are you so sure that if not for that long term exposure, you would have say extra 15 years of additional life, as a bonus, before the clock stops ticking? What I intended to hint upon is the fact that once the pan-global 5G will be implemented, even with satellites beaming down on remote areas, there will basically be no sanctuary left, no place to hide, for those who wish to do so. OK, maybe there are no long term ill effects. But what if there are? What if it is just big time money trying to push its agenda through, with no respect to the true consequences? Being a 'Guinea Pig' in a technological-biological experiment would normally require for the 'Guinea Pig' to grant it's concern for such experimenting upon itself. Not the case with 5G. How come various communities from California are already blocking 5G in their vicinity and suing telecommunication companies that are trying to push it through? |
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#109 | |
diyAudio Member
Join Date: Dec 2008
Location: West Coast USA (somewhere)
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Happy DIYing, Daniel |
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#110 | |
diyAudio Member
Join Date: Apr 2003
Location: Sweden
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jneutron, I admire your endless work of promoting and spreading fact and knowledge. Keep it up buddy!
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