Posts Tagged ‘RF-redesign’

Apple Needs Some RF Design Engineers

Apple Needs Some RF Design Engineers

A Chinese man walks past a authorized Apple retailer in Beijing on July 12, 2010. Despite a new flagship showroom that just opened in Shanghai, Apple is striving to overcome price disadvantages and an underground market. Most fans of its Apple products here have been buying their iPhones, iPods and Mac computers from smugglers who operate through underground electronics markets.  UPI/Stephen Shaver Photo via Newscom

Courtesy of Karl Denninger at The Market Ticker 

Yep, as I suspected….

It’s official. Consumer Reports’ engineers have just completed testing the iPhone 4, and have confirmed that there is a problem with its reception. When your finger or hand touches a spot on the phone’s lower left side—an easy thing, especially for lefties—the signal can significantly degrade enough to cause you to lose your connection altogether if you’re in an area with a weak signal. Due to this problem, we can’t recommend the iPhone 4.

That’s Consumer Reports, incidentally, which put the phone in an RF-isolated room to perform their tests along with a base-station emulator.

Oops – that’s about as close to proof as you’re going to find.  In an RF-quiet environment it’s pretty easy to prove your case, and it appears that CR did so.

The tests also indicate that AT&T’s network might not be the primary suspect in the iPhone 4′s much-reported signal woes.

"Might" not?  

I have never been impressed with the iPhone (any generation) in terms of RF.  Ever. It has always been a "form before function" device from my perspective, all the way back to the original units.  Then again I’m spoiled – the best RF-performing GSM phone I’ve ever used was a Nokia 3395.  I may still have one laying around here somewhere, and all of my old Nokias (including a 6610 which was nearly as good) still work just fine.  Old, yes, but one thing Nokia does know how to do is design and build an RF section.

Incidentally, buying devices that work before selecting them for "sex appeal" may be why I’ve never had a material problem with the "can you hear me?" BS that so many suffer with when it comes to cellphones.  I guess my view is that a cellphone is for communicating rather than trying to shag some hot chick at the local bar by flashing my "bling."

This is a common flaw for consumer devices – be sexy rather than be smart – or good.  Of course sex sells, and so the more "sexy" you can make something look the better it sells, and as long as you remain within the "acceptable" functionality envelope you don’t get hurt – too badly.  Witness Motorola, which had the "hot" phone for a long time…
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Zero Hedge

Amid Soaring Cobalt Prices, Apple Will Buy Direct From Miners

Courtesy of ZeroHedge. View original post here.

One of the most underreported commodity stories of the past year has been the staggering climb in the price of cobalt - a metal that's an essential ingredient of everything from smartphones to electric cars, as BusinessWeek pointed out in a feature about the looming cobalt crisis published last month.

For example, both cobalt and lithium are key components of lithium-ion batteries used in smartphones. And as global demand for electric vehicles is expected to explode thanks to China's heavy handed inducements for urban car ...



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Phil's Favorites

Why Altered Carbon is not about the future - nor is any other science fiction

 

Why Altered Carbon is not about the future – nor is any other science fiction

Netflix

Courtesy of Gavin Miller, University of Glasgow

The hopes and dreams of the technological movement known as “transhumanism” have been brought into the media spotlight thanks to Netflix’s new science fiction series, Altered Carbon (based on Richard Morgan’s 2001 novel).

Transhumanists believe that our species will soon undergo a technological evolution into a new and superior form. While ...



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Insider Scoop

25 Stocks Moving In Wednesday's Pre-Market Session

Courtesy of Benzinga.

Gainers
  • Tetraphase Pharmaceuticals Inc (NASDAQ: TTPH) rose 11.5 percent to $2.32 in pre-market trading following announcement of development agreement with Everest Medicines.
  • Cyclacel Pharmaceuticals Inc (NASDAQ: CYCC) rose 8.4 percent to $1.68 in pre-market trading. Cyclacel announced a notice of grant of new European patent covering sapacitabine pharmaceutical formulations.
  • Kirkland Lake Gold Ltd. (NYSE: KL) rose 5.7 percent to $15.00 in pre-market trading...


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Chart School

Sellers Come In But Semiconductors Gain

Courtesy of Declan.

Markets were set up for sellers with most indices experiencing broad selling. However, the one index which looked set up best for shorts - the Semiconductor Index - actually managed to gain.  Anyone taking up Friday's short in the latter Index will have been stopped out but another shorting opportunity may have presented itself. Technicals haven't returned to becoming net bullish but only the ADX remains to shift.


The S&P eased a little lower but didn't return below what was channel support. Te...

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ValueWalk

Bill Nygren's Stock Picks

By VW Staff. Originally published at ValueWalk.

Bill Nygren, Harris Associates U.S. equities CIO and Oakmark Funds portfolio manager, shares his top stock picks and long-term investment strategy.

H/T Dataroma

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Bill Nygren's Stock Picks

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Digital Currencies

As Bitcoin Nears $11,000, Here's A History Of Its Biggest Ups And Downs

Courtesy of ZeroHedge. View original post here.

The cryptocurrency rebound off Feb 5th's bloodbath lows (below $6,000 for Bitcoin) has been impressive, as a 'mysterious' massive buyer 'bought the dip' and momentum took care of the rest.

With Bitcoin now nearing $11,000 (almost a double off the lows), ...



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Biotech

What is 'right to try,' and could it help?

Reminder: Pharmboy is available to chat with Members, comments are found below each post.

 

What is 'right to try,' and could it help?

In this March 18, 2011 photo, Cassidy Hempel waved at hospital staff as she was being treated for a rare disorder. Her mother Chris, left, fought to gain permission for an experimental drug. AP Photo/Marcio Jose Sanchez

Morten Wendelbo, Texas A&M University and Timothy Callaghan, ...



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Mapping The Market

The tricks propagandists use to beat science

Via Jean-Luc

How propagandist beat science – they did it for the tobacco industry and now it's in favor of the energy companies:

The tricks propagandists use to beat science

The original tobacco strategy involved several lines of attack. One of these was to fund research that supported the industry and then publish only the results that fit the required narrative. “For instance, in 1954 the TIRC distributed a pamphlet entitled ‘A Scientific Perspective on the Cigarette Controversy’ to nearly 200,000 doctors, journalists, and policy-makers, in which they emphasized favorable research and questioned results supporting the contrary view,” say Weatherall and co, who call this approach biased production.

A second approach promoted independent research that happened to support ...



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Members' Corner

An Interview with David Brin

Our guest David Brin is an astrophysicist, technology consultant, and best-selling author who speaks, writes, and advises on a range of topics including national defense, creativity, and space exploration. He is also a well-known and influential futurist (one of four “World's Best Futurists,” according to The Urban Developer), and it is his ideas on the future, specifically the future of civilization, that I hope to learn about here.   

Ilene: David, you base many of your predictions of the future on a theory of historica...



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OpTrader

Swing trading portfolio - week of September 11th, 2017

Reminder: OpTrader is available to chat with Members, comments are found below each post.

 

This post is for all our live virtual trade ideas and daily comments. Please click on "comments" below to follow our live discussion. All of our current  trades are listed in the spreadsheet below, with entry price (1/2 in and All in), and exit prices (1/3 out, 2/3 out, and All out).

We also indicate our stop, which is most of the time the "5 day moving average". All trades, unless indicated, are front-month ATM options. 

Please feel free to participate in the discussion and ask any questions you might have about this virtual portfolio, by clicking on the "comments" link right below.

To learn more about the swing trading virtual portfolio (strategy, performance, FAQ, etc.), please click here ...



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Promotions

NewsWare: Watch Today's Webinar!

 

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Kimble Charting Solutions

Brazil; Waterfall in prices starting? Impact U.S.?

Courtesy of Chris Kimble.

Below looks at the Brazil ETF (EWZ) over the last decade. The rally over the past year has it facing a critical level, from a Power of the Pattern perspective.

CLICK ON CHART TO ENLARGE

EWZ is facing dual resistance at (1), while in a 9-year down trend of lower highs and lower lows. The counter trend rally over the past 17-months has it testing key falling resistance. Did the counter trend reflation rally just end at dual resistance???

If EWZ b...



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All About Trends

Mid-Day Update

Reminder: Harlan is available to chat with Members, comments are found below each post.

Click here for the full report.




To learn more, sign up for David's free newsletter and receive the free report from All About Trends - "How To Outperform 90% Of Wall Street With Just $500 A Week." Tell David PSW sent you. - Ilene...

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About Phil:

Philip R. Davis is a founder Phil's Stock World, a stock and options trading site that teaches the art of options trading to newcomers and devises advanced strategies for expert traders...

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