Could UA be related to cellphones?
in [Toyota]
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From: dr_jeff on 11 Mar 2010 18:39 Clive wrote: > In message > <814d3c60-45c8-4daf-b4e2-dda8995bfd0c(a)l12g2000prg.googlegroups.com>, > Michael <mrdarrett(a)gmail.com> writes >> Um, what if the passenger has a cellphone? >> >> The GSM phones are electrically noisy. For the longest time I was >> trying to figure out the DUT-dut-dut-dut...dut-dut-dut noise coming >> from our car stereo... turns out that was my wife's AT&T GSM phone >> talking to the cell tower... even though she wasn't on the phone. My >> Verizon CDMA phone doesn't do that. > The cars electronics are under the bonnet (hood?) And effectively in a > Faraday cage. However, there are cables (like power cables and those pesky cables that are needed to communicate with sensors and such), too, snaking around the car. Jeff
From: JoeSpareBedroom on 11 Mar 2010 20:07 "Conscience" <nobama@g�v.com> wrote in message news:hnc40i$6cl$1(a)news.albasani.net... > On 2010-03-11 16:48:42 -0800, "Jeff Strickland" <crwlrjeff(a)yahoo.com> > said: > >> You are probably distracted, but you are distracted by things that shine >> ... > > A good thing. The "wizard" (lower-case intentional) and his Dorothy were > too distracted to reproduce more than once. > You and Jeff are such good buddies. It's sweet.
From: Clive on 11 Mar 2010 20:20 In message <hnbqbj$lij$1(a)news.eternal-september.org>, Jeff Strickland <crwlrjeff(a)yahoo.com> writes >As for the phone screwing up the car, I have no idea but I like to think >they can ground the automotive systems in the car sufficiently so that a >phone signal that's a fraction of a milliwatt is shielded from the >automotive systems. Phones in the 900MHz band are 2 watts whilst phones in the 1800MHz band are 1 watt. -- Clive
From: Jeff Strickland on 11 Mar 2010 20:33 "Clive" <clive(a)yewbank.demon.co.uk> wrote in message news:z$T2PI9DbZmLFwTu(a)yewbank.demon.co.uk... > In message <hnbqbj$lij$1(a)news.eternal-september.org>, Jeff Strickland > <crwlrjeff(a)yahoo.com> writes >>As for the phone screwing up the car, I have no idea but I like to think >>they can ground the automotive systems in the car sufficiently so that a >>phone signal that's a fraction of a milliwatt is shielded from the >>automotive systems. > Phones in the 900MHz band are 2 watts whilst phones in the 1800MHz band > are 1 watt. > -- > Clive > At what voltage? A watt at 3v and a watt at 12v are completely different watts. Perhaps the scale should be milliamps instead of milliwatts. Whatever. The transmit power of a cellphone is a fraction of the power floating around within an automotive system. That's what I like to believe.
From: dr_jeff on 11 Mar 2010 21:39
Conscience wrote: > On 2010-03-11 17:09:35 -0800, dr_jeff <utz(a)msu.edu> said: > >>>>> Fooling around with your radio/CD player has been shown to be more >>>>> distracting than cell phone use. >>>>> >>>>> But you'll never hear anyone talk about banning their use. >>>> >>>> One fools around with the CD or radio for a few seconds, not for >>>> minutes on end as with a cell phone. >>> >>> Which in no way negates what I wrote. Time is irrelevant. >>> >>> Do try to keep up, "doctor". >> >> Nor did what you say negate my comment. It is a valid comment. One >> spends far more time talking on the cell phone than playing with the >> radio. And time is relevant. If you think that doing something >> distracting for 10 seconds is as distracting doing something >> distracting for 5 minutes, you are sadly mistaken. >> >> You don't need to be so hostile or disrespectful. I wasn't >> disrespectful of you. > > Let's try this again. I stated that radio/CD use was more distracting > that cell phone use. Not my research, but it's true. Actually, no: http://www.hsrc.unc.edu/safety_info/distracted_drowsy/distracted_drivers_researcher_remarks.cfm shows that people are more likely to swerve when answering a cell phone than using the radio controls. > You counter with, "One fools around with the CD or radio for a few > seconds, not for minutes on end as with a cell phone." > > Explain why you stated this, or what it has to do with radio/CD use > being more distracting (read that "accidents") than cell phone use. You're the one who suggested that radio/CD use is more distracting than cell phone use. Jeff |