Apple Lies About Your iPhone Signal - InformationWeek
IoT
IoT
Mobile // Mobile Devices
News
1/12/2012
11:01 AM
Connect Directly
Twitter
Facebook
Google+
LinkedIn
RSS
E-Mail
50%
50%

Apple Lies About Your iPhone Signal

I have gotten the sense in the past that my iPhone 4S wasn't honest when it said I had 5 bars of signal. Now I know it's lying to me.

I don't know about you, but I've definitely had many an occasion where my iPhone has told me that I've had plenty of cell phone signal and yet, empirically, it seemed otherwise. Now I have proof of my suspicions.

[Correction: Thanks to George Ou for pointing out that the signal bars are a pure software construct and under the total control of Apple. My apologies to AT&T for including them in this.]

Wilson Cradle Signal Booster
I was at CES 2012 at the booth of Wilson Electronics, Inc., to discuss and view their cell phone signal boosters, like the one pictured here. They're interesting and I do intend to test them but, as Arlo Guthrie said 15 minutes into Alice's Restaurant, that's not what I came here to tell you about.

In order to demonstrate the efficacy of their devices, Wilson had a small Faraday cage at its booth. This cage was a wooden-framed box with copper mesh screening around the insides. Invented by the great Michael Faraday in 1836, a Faraday cage blocks external electric fields from penetrating and this includes RF, or radio frequency emissions such as cell phone signals. Faraday cages are commonly used to create an RF-free environment in which to test RF devices.

While testing my own iPhone 4S in the box we were moderately surprised to see that, some time after the lid had been shut on it, it still had five bars. See the video below, and I apologize for the quality of it, as our real camera operators weren't around and I did it myself.

You can see, if you look carefully, that the cell phone retains five bars even though it has been in the cage for some time. We confirmed that there was no signal in two ways, first by calling my phone while it was in and out of the box. It received calls outside, but not when inside. Also, there is a code you can enter into the iPhone to show the raw signal gain off the antenna and it dropped like a stone when we put it in the box, even as the bars stayed up.

My iPhone gets the job done, but I do find myself frequently irritated by something it does or doesn't do. This, however, is really disturbing, and now you know that you can't trust the bar display on yours.

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
How Enterprises Are Attacking the IT Security Enterprise
How Enterprises Are Attacking the IT Security Enterprise
To learn more about what organizations are doing to tackle attacks and threats we surveyed a group of 300 IT and infosec professionals to find out what their biggest IT security challenges are and what they're doing to defend against today's threats. Download the report to see what they're saying.
Register for InformationWeek Newsletters
White Papers
Current Issue
Digital Transformation Myths & Truths
Transformation is on every IT organization's to-do list, but effectively transforming IT means a major shift in technology as well as business models and culture. In this IT Trend Report, we examine some of the misconceptions of digital transformation and look at steps you can take to succeed technically and culturally.
Video
Slideshows
Twitter Feed
Sponsored Live Streaming Video
Everything You've Been Told About Mobility Is Wrong
Attend this video symposium with Sean Wisdom, Global Director of Mobility Solutions, and learn about how you can harness powerful new products to mobilize your business potential.
Flash Poll