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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Phil's Favorites

Why big businesses move their headquarters around the world - tax, talent and trepidation

 

Why big businesses move their headquarters around the world – tax, talent and trepidation

Shutterstock

Courtesy of Carmen Raluca Stoian, University of Kent

Ever since the EU referendum of 2016, well-known companies have announced decisions to relocate outside of the UK. Electronic giant Panasonic has gone to Amsterdam, where ...



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ValueWalk

Ray Dalio Gives 3 Financial Recommendations For Millennials

By Jacob Wolinsky. Originally published at ValueWalk.

Founder, Chairman and Co-Chief Investment Officer of Bridgewater Associates Ray Dalio talks to Julia La Roche in 2018 of Yahoo Finance about the value of savings and investing.

Ray Dalio Gives 3 Financial Recommendations For Millennials

Q4 hedge fund letters, conference, scoops etc

Trans...



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Kimble Charting Solutions

Giant Topping Pattern Could Be Forming, Says Joe Friday

Courtesy of Chris Kimble.

The first fact of the day; The long-term trend for tech remains up and the decline into the lows on Christmas Eve DID NOT break this trend!

This chart looks at NDX 100 ETF (QQQ) on a weekly basis over the past 14-years. For the past decade, since the lows in late 2009, QQQ has remained inside of rising channel (1). As you can see the decline into the end of the year lows, did nothing more than test support, which held and a strong rally has followed!

Over the past few months, QQQ could be forming a “Head & Shoulders&...



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Zero Hedge

Yesterday's Perfect Recession Warning May Be Failing You

Courtesy of ZeroHedge. View original post here.

Authored by Michael Lebowitz via RealInvestmentAdvice.com,

Recently, Wall Street and the Financial Media have brought much attention to the flattening and possible inversion of the U.S. Treasury yield curve.  Given the fact that an inversion of the 2s/10s Treasury yield curve has predicted every recession over the last forty years, it is no wonder that the topic grows in stature as the difference between the 2-year Treasury yield and the 10-year Treasury yield approaches zero. Unf...



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Insider Scoop

Salesforce.com's Q4 Report Should Trigger Higher Valuation, Says Bullish Oppenheimer

Courtesy of Benzinga.

Related CRM Oppenheimer Praises HubSpot's Execution, Downgrades On Valuation Benzinga's Top Upgrade...

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Chart School

RTT browsing latest..

Courtesy of Read the Ticker.

Please review a collection of WWW browsing results. The information here is delayed by a few months, members get the most recent content.



Date Found: Thursday, 02 August 2018, 07:48:20 PM

Click for popup. Clear your browser cache if image is not showing.


Comment: $600 BN interest payments for US gov, print baby print



Date Found: Sunday, 05 August 2018, 09:22:26 PM

Click for popup. Clear your browser cache if image is not showing.


Comment: Hire FED interest rates always brings double trouble



Date Found: Monday, 06 August ...

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Digital Currencies

Cryptos Are Surging: Bitcoin, Ethereum Hit One-Month Highs As Institutions Dip Toes

Courtesy of Zero Hedge

Cryptocurrencies are surging while the US equity markets take the day off. Ethereum is up over 18% from Friday's 'close' and the rest of the crypto space is a sea of green. While no immediate catalyst (headline or technical level) is clear, increasing chatter over institutional investors dipping their toes in the space have prompted an extension of the positive trend.

A sea of green...

Source: Coin360

Ethereum is leading the charge follow...



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Biotech

Cancer: new DNA sequencing technique analyses tumours cell by cell to fight disease

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

 

Cancer: new DNA sequencing technique analyses tumours cell by cell to fight disease

Illustration of acute lymphoblastic leukaemia, showing lymphoblasts in blood. Kateryna Kon/Shutterstock

Courtesy of Alba Rodriguez-Meira, University of Oxford and Adam Mead, University of Oxford

...

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Members' Corner

Why Trump Can't Learn

 

Bill Eddy (lawyer, therapist, author) predicted Trump's chaotic presidency based on his high-conflict personality, which was evident years ago. This post, written in 2017, references a prescient article Bill wrote before Trump even became president, 5 Reasons Trump Can’t Learn. ~ Ilene 

Why Trump Can’t Learn

Donald Trump by Gage Skidmore (...



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Mapping The Market

Trump: "I Won't Be Here" When It Blows Up

By Jean-Luc

Maybe we should simply try him for treason right now:

Trump on Coming Debt Crisis: ‘I Won’t Be Here’ When It Blows Up

The president thinks the balancing of the nation’s books is going to, ultimately, be a future president’s problem.

By Asawin Suebsaeng and Lachlan Markay, Daily Beast

The friction came to a head in early 2017 when senior officials offered Trump charts and graphics laying out the numbers and showing a “hockey stick” spike in the nationa...



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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

Free eBook - "My Top Strategies for 2017"

 

 

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Phil has a chapter in a newly-released eBook that we think you’ll enjoy.

In My Top Strategies for 2017, Phil's chapter is Secret Santa’s Inflation Hedges for 2017.

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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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