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#21
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John Smith wrote:
You wrote: ... Now all you need to prove, is that the RF Power Density of a 300 Milliwatt Cellphone, operating one one of 4 Bands in the 800-900 ... Let's say just those figures are correct ... My Motorola Razar V3 phone is approx. 6mm thick (when opened), and where the antenna is buried in the phone. This means the antenna can be no more than 6mm from my head if the phone lies against my head. Now, we assume the phone is emitting 300mw. This would be equivalent to 1.2w of power emanating from that same antenna at a distance of 12mm from my head. And, the latter would be equivalent to 4.8w emanating from the same antenna at a distance of 24mm from my head. And, the last would be equivalent to 19.2w emanating from the same antenna at a distance of 48mm from my head ... your higher figure, of two watts, is simply frightening ... The lunacy is exposed ... correct any error you see in the above ... Regards, JS I should have clarified "the meaning" in the above ... Or, to summarize, 300mw sounds both UNGODLY and IRRESPONSIBLE, IMHO ... I would suspect it to be much nearer 50-100mw ... and I can logic this by the size of the battery and the time it lasts between charges. (no, I have NOT taken the time to get the battery specs and do the computations!) However, doing the math, 50mw is too much. And, an equivalent of 1kw emanating from the antenna comes at MUCH TOO CLOSE a distance ... Sorry I had to take two posts to make that clear. Regards, JS |
#22
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John Smith wrote:
... However, doing the math, 50mw is too much. And, an equivalent of 1kw emanating from the antenna comes at MUCH TOO CLOSE a distance ... Sorry I had to take two posts to make that clear. Regards, JS Well, the 3.7v, 900mah li-ion battery lasts ~2hrs of continuous "talk time", I have verified this ... It seems 300mw (actual output!) is NOT unimaginable ... :-( Regards, JS |
#23
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![]() "John Smith" wrote in message ... JB wrote: ... That's the trouble with you people. You insinuate by "asking a question" or making up a meaningless phrase like "noticeable damage" or "common sense laws" in such a way that it panics the ignorant or non thinking people into running over a cliff or voting, then you sit back and feign ignorance. Just beware you don't get caught in your own stampede. I submit that power tools should be rendered safe before exposing them to people with "artistic license" or who feel themselves "not responsible" for their actions because they are crazy. ... Yes, I have heard that argument before, with tobacco ... Nicola Tesla once said chewing gum was more damaging than alcohol ... This URL: http://en.wikipedia.org/wiki/Thalidomide This drug was once thought "safe" and marketed/sold in over 50 countries. It was thought so safe, it was given to pregnant women, causing innumerable birth defects in children (children born without hands/arms/feet/legs/etc. Your argument against caution is simply ignorance such we have seen in the past ... some of us learned. Even when the BEST AUTHORITIES say is is "OK", use caution! We know that the human body can be harmed by just sitting in the sun too long. How much RF at what frequency has or has not caused damage to those who have been or are exposed, has been addressed only by FCC setting an arbitrary specification without supporting data other than that supplied by military microwave studies with respect to high powered radar. Nor do the studies support that there is noticable damage by observing the military safety standard or by the FCC standard that sets limits much lower, and even lower still for those who aren't knowlegable on the subject.. So then it is anything but an objective issue. I too have been exposed, but limited my exposure based on time averaging, so I have encountered field-densities thousands of times greater than a cell phone for a several minutes and hundreds of times, for as much as an hour with no discernible effect in the long or short term, but have encountered unknown intense fields with short term issues, such as headache in the evening after exposure, but gone in the morning. I have certainly encountered the same thing more often from over exposure to "a day at the beach". OK, so do an experiment yourself to test the amount of damage! 1) Cut an opening in the door of your microwave. 2) Insert your hand. 3) Turn on the microwave for 5 seconds. 4) Repeat 1 - 3 until "noticeable damage" occurs. 5) Come up with a time you think it is "OK" to microwave your hand; quite possibly, you may wish to consider a time MUCH LOWER (as a "test standard", note that zero seconds will ALWAYS be safer) than the time to do "noticeable damage." (Disclaimer, the above is only meant as a warning to demonstrate the ignorance of the previous posters logic -- i.e., IT SHOULD NEVER BE ATTEMPTED FOR ANY LENGTH OF TIME!) Or, don't do this yourself, EVER! Case in point: As a nonsmoker, I have problems reworking PC boards because my employer has no plausible deniability that any respiratory ailment I might succumb to in later years wouldn't arguably be caused by a self-inflicted lifestyle condition rather than an employment hazard. ABSOLUTELY! OTHER things cause cancer/illness, a search of the internet will provide you with countless and proven substances/tasks/jobs/etc. which you should provide. If you think there is a real danger with ANY job you take--QUIT--IMMEDIATELY! But then, you can't protect some from themselves, those will die for their occupation/job. :-( In the face of other more serious health risks such as sunstroke, falling off a tower or electrocution, RF exposure is a common sense issue for hams and those in the business, and a non-issue for those who will never enter restricted areas. In fact, there are far more daily hazardous things that we encounter, as to obliterate any test data. Your Petri dish and sal****er experiments have less credibility than the anecdotal. Hey, some will make a trade off and face such serious consequences to their health and safety in exchange for money -- I only hope their compensation is justified, at least to them. Again, some people cannot be saved from themselves ... and then, once they have made such a BAD decision, they only wish to blame others. If you are too stupid to protect yourself, am I required to do so? (I mean I will, but then, I will not let you work at places injurious to you! I mean, for God sakes man, you will raise insurance premiums through the roof!) It's like the illegal alien issue. Due to the lack of proper judgment and widespread hysteria, more housekeepers and migrant workers will suffer than gangbangers who find prison to be a climate-controlled mailing address with a few inconveniences, but "three hots and a cot". Deportation gives opportunity for those with plenty of drug money to do it again. All the hysteria does is help to polarize nationalism (and foreign nationalism). Well, I guess, declines in the American living standards, importation of 3rd world conditions here, lack of medical care for millions, untold people without home ownership, etc., is nice! -- if you like that sort of thing ... personally, I would seek other/more-positive solutions. With the population of foreign nationalist gringo haters in this country outnumbering those in Mexico, why do we need fences at all? Perhaps for a start, we might plant more businesses in Mexico rather than having everything shipped all the way from China. Well, we could just give them everything, then hate them for having it and work for slave wages getting it back and just keeping fed, I guess; again, some people have different ideas. Personally brother, I would move away from such conditions -- but that is just me ... Regards, JS You seem to have a real problem with reading comprehension too. |
#24
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John Smith wrote:
... (no, I have NOT taken the time to get the battery specs and do the computations!) ... Regards, JS I am surprised, the BR60 li-ion battery is 3.7v @ 900mah ... the ~2hr talk time suggests 300mw is well within reason ... I am surprised the battery packs that kind of punch. :-( Regards, JS |
#25
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Well, I can't explain anything rationaly to you because you are jumping
wildly to conclusions like a cartoon character. All I'm saying, is that you need to objectively assess risks. If you can't do that you ought to be institutionalized for the safety of yourself and others. The statistics of wireless devices causing harm are so off the radar there are none! And this is the smoking gun - if there were, they would have come forward by now from the 2 way and uwave industry with complaints, but I haven't heard of anyone in the business who HAS been harmed in my 30 years of experience. And that is 15 years under the old standards of RF exposure - NONE. I invite anyone from the industry who reasonably thinks they have been harmed to respond. Particularly from the retired folks. I'm not talking about RF burns, as they are minor and pain has a way of causing you to limit that exposure. You can eliminate the potential of risk entirely by throwing away all RF devices. But don't stop there because of all the risks that you failed to account for, such as rolling out of bed in the morning or burning yourself making breakfast or tripping on the front steps or getting in a wreck on the way to work. THAT is a major risk statistically, whereas the statistics of RF harm are unknown because no is so stupid, to cut their arm off or cut a hole in the uwave oven door AS YOU SUGGESTED just to get a chance to GET harmful exposure, which sort of proves my point about the general public having to try real hard in order to to be exposed to harmfull levels of energy. Getting back to the cell phones and Blackberry's - and I thought that's what we were talking about - DON'T WORRY ABOUT IT! They really don't amount to squat! Honest! BTW I put a mouse in a Litton uwave oven in 1983 for 10 seconds and removed him because I didn't want to push the little guys luck or see him suffer. NO noticeable or discernable damage or harm was done and he went on to sire several healthy normal litters. |
#26
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John Smith wrote:
John Smith wrote: ... (no, I have NOT taken the time to get the battery specs and do the computations!) ... Regards, JS I am surprised, the BR60 li-ion battery is 3.7v @ 900mah ... the ~2hr talk time suggests 300mw is well within reason ... I am surprised the battery packs that kind of punch. :-( Regards, JS Of course, our "difference" could stem solely from differing definitions of the word prudent, such as in "prudent man." I am using this definition: Source: Webster's Revised Unabridged Dictionary (1913) Prudent \Pru"dent\, a. [L. prudens, -entis, contr. from providens: cf. F. prudent. See Provident.] 1. Sagacious in adapting means to ends; circumspect in action, or in determining any line of conduct; practically wise; judicious; careful; discreet; sensible; -- opposed to rash; as, a prudent man; dictated or directed by prudence or wise forethought; evincing prudence; as, prudent behavior. Moses established a grave and prudent law. --Milton. Regards, JS |
#27
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JB wrote:
Well, I can't explain anything rationaly to you because you are jumping wildly to conclusions like a cartoon character. All I'm saying, is that you need to objectively assess risks. If you can't do that you ought to be institutionalized for the safety of yourself and others. The statistics of wireless devices causing harm are so off the radar there are none! And this is the smoking gun - if there were, they would have come forward by now from the 2 way and uwave industry with complaints, but I haven't heard of anyone in the business who HAS been harmed in my 30 years of experience. And that is 15 years under the old standards of RF exposure - NONE. I invite anyone from the industry who reasonably thinks they have been harmed to respond. Particularly from the retired folks. I'm not talking about RF burns, as they are minor and pain has a way of causing you to limit that exposure. You can eliminate the potential of risk entirely by throwing away all RF devices. But don't stop there because of all the risks that you failed to account for, such as rolling out of bed in the morning or burning yourself making breakfast or tripping on the front steps or getting in a wreck on the way to work. THAT is a major risk statistically, whereas the statistics of RF harm are unknown because no is so stupid, to cut their arm off or cut a hole in the uwave oven door AS YOU SUGGESTED just to get a chance to GET harmful exposure, which sort of proves my point about the general public having to try real hard in order to to be exposed to harmfull levels of energy. Getting back to the cell phones and Blackberry's - and I thought that's what we were talking about - DON'T WORRY ABOUT IT! They really don't amount to squat! Honest! BTW I put a mouse in a Litton uwave oven in 1983 for 10 seconds and removed him because I didn't want to push the little guys luck or see him suffer. NO noticeable or discernable damage or harm was done and he went on to sire several healthy normal litters. That is a lot, and WAY overly complicated, IMHO ... and no, I don't need do all that ... I need only "error on the side of caution." (If only I'd done that with smoking!) But then, that is keeping with the theme of "prudent man/men", which was my original statements intent. Besides, Bluetooth improves the whole "phone experience", hands free digit dial and name dial are very handy. And, it is a law to be hands-free on the phone while driving an auto in California ... :-) A win-win situation which has few equals. Your particular mileage may vary ... Regards, JS |
#28
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JB wrote:
SNIP You seem to have a real problem with reading comprehension too. And you with trimming posts! -- M0WYM www.radiowymsey.org Wymsey - Ten years Old! www.wymsey.co.uk |
#29
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You wrote:
Now all you need to prove, is that the RF Power Density of a 300 Milliwatt Cellphone, operating one one of 4 Bands in the 800-900 Mhz, and 1800 - 2000 Mhz, will cause ANY Measurable Heating in Human Tissue, and therefore cause some sort of problem. No problem: http://www.wymsey.co.uk/wymchron/cooking.htm -- M0WYM www.radiowymsey.org Wymsey - Ten years Old! www.wymsey.co.uk |
#30
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![]() "M0WYM" wrote in message ... You wrote: Now all you need to prove, is that the RF Power Density of a 300 Milliwatt Cellphone, operating one one of 4 Bands in the 800-900 Mhz, and 1800 - 2000 Mhz, will cause ANY Measurable Heating in Human Tissue, and therefore cause some sort of problem. No problem: http://www.wymsey.co.uk/wymchron/cooking.htm Check out Snopes on that. There are some Fake YouTubes on that too. It seems you can't even do that with a pile of phones. Nor can you receive police calls on your cell phone by spreading peanut butter on the SIM card. But if it is any consolation, I can grab on to a 50 watt 2m antenna and feel it get warm. Again, I can stand in the sun and get warm too. Aside from the known UV exposure problem, the tissue heating appears to have little negative impact over the long run when taken in moderation. Still, people have been killed in their sleep by electric blankets. And I would question the sensibility of someone who stands in between two 10db 900 MHz 1kw ERP paging antennas just to get warm. But I've seen that done too. Studies show that the penetration of RF heating into the body is tied quite a bit to the wavelength, and that the greatest penetration was somewhere between 400 and 2000 Mhz. The most worrisome issue was found to be the human eye at those frequencies. There is no blood flow in the Vitreous solution in the eyeball to cool it, nor in the Cornea tissue. Nor are you apt to notice if there is heating of that tissue. One of the long term results of the Military observations, were cataract formation in those who worked closely with microwave RADAR energy. You should be more concerned with the 5 watt 440 or 800 HT with the antenna right in your eye than your earlobe, which has blood flow. If you notice your earlobe getting warm, reduce your talk time accordingly. And don't watch the food cook. |
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