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Article #587Re: Consumer Reports: iPhone 4 - Not recommended
From: AES
Date: Wed, 14 Jul 2010 20:05
Date: Wed, 14 Jul 2010 20:05
16 lines
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2109 bytes
Jeff Lieberman: Is your assessment here that placing RF-lossy human flesh (with a high water content) close enough to the phone antenna loads down (or maybe just detunes?) the RF circuitry of the transmitter final stage to a point that the active transmitter circuitry in the phone no longer oscillates effectively? -- but just putting a dry and non-lossy dielectric there doesn't, and also moving the flesh even a short distance away reduces its loading on the circuitry enough that the active circuitry still works OK? [I'm an EE, but with no RF circuitry experience, much less any cellphone experience. So, I can understand this happening with an active transmitting circuit -- though I have somewhat more trouble seeing how it would interfere in such a sensitive way with a passive receiving antenna.]
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X-Google-Thread: 110038,d8a6e883f28322e7 X-Google-NewGroupId: yes X-Google-Thread: fa874,d8a6e883f28322e7 X-Google-NewGroupId: yes X-Google-Attributes: gidd668eef4dc,gidaa617e85ca,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: arc1-ca.pugleaf.net!g2news1.google.com!news1.google.com!npeer03.iad.highwinds-media.com!news.highwinds-media.com!feed-me.highwinds-media.com!news.glorb.com!news2.glorb.com!usenet.stanford.edu!siegman From: AES <siegman@stanford.edu> Newsgroups: alt.cellular.attws,ba.internet Subject: Re: Consumer Reports: iPhone 4 - Not recommended Date: Wed, 14 Jul 2010 13:05:27 -0700 Organization: Stanford University Lines: 16 Message-ID: <siegman-5AA573.13052714072010@sciid-srv02.med.tufts.edu> References: <i1frtr$q3$1@news.eternal-september.org> <98L_n.737$o27.20@newsfe08.iad> <4c3b8bed$0$1323$815e3792@news.qwest.net> <yx5%n.36029$YX3.29859@newsfe18.iad> <4c3cf409$0$22110$742ec2ed@news.sonic.net> <h7jq369avp6khdjbc8uivaioh8miie84tn@4ax.com> <4c3dab03$0$22127$742ec2ed@news.sonic.net> <cmrr3650cdqpfkimtqgb45nj36vgsp3o8i@4ax.com> X-Trace: usenet.stanford.edu 1279137928 23583 127.0.0.1 (14 Jul 2010 20:05:28 GMT) X-Complaints-To: action@cs.stanford.edu Mail-Copies-To: nobody User-Agent: MT-NewsWatcher/3.5.2 (Intel Mac OS X)