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Article #588Re: Consumer Reports: iPhone 4 - Not recommended
From: John Higdon
Date: Thu, 15 Jul 2010 00:01
Date: Thu, 15 Jul 2010 00:01
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2417 bytes
In article <siegman-5AA573.13052714072010@sciid-srv02.med.tufts.edu>, AES <siegman@stanford.edu> wrote: > [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.] Receiving antennas and transmitting antennas work exactly the same. The only difference concerns which way the power is flowing and how much. That which detunes a transmitting antenna will also detune a receiving antenna. In my racket, that can be quite a distinction: detune a receiving antenna and you impair reception. Detune a transmitting antenna and things blow up. At the power levels of an iPhone, however, detuning is detuning. I'm not sure what you mean by "passive receiving antenna". An antenna is an antenna. It is a device that couples alternating current to the ether, and can pass power in either direction. -- John Higdon +1 408 ANdrews 6-4400 AT&T-Free At Last
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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!npeer01.iad.highwinds-media.com!news.highwinds-media.com!feed-me.highwinds-media.com!post01.iad!not-for-mail From: John Higdon <higgy@kome.com> Newsgroups: alt.cellular.attws,ba.internet Subject: Re: Consumer Reports: iPhone 4 - Not recommended Organization: Technological Extortion Studies 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> <siegman-5AA573.13052714072010@sciid-srv02.med.tufts.edu> User-Agent: MT-NewsWatcher/3.5.2 (Intel Mac OS X) Date: Wed, 14 Jul 2010 17:01:02 -0700 Message-ID: <higgy-A027AC.17010014072010@news.announcetech.com> X-Original-NNTP-Posting-Host: dsl081-070-074.sfo1.dsl.speakeasy.net X-Authenticated-User: john Lines: 27 X-Complaints-To: abuse@newshosting.com