What's new
Apple iPad Forum 🍎

Welcome to the Apple iPad Forum, your one stop source for all things iPad. Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!

Apple hiring antenna specialists

Seadog

iPF Noob
Joined
Mar 25, 2010
Messages
2,518
Reaction score
52
Location
Oklahoma
PC Mag says that Apple is hiring several new antenna engineers for the iPad/iPhone. Sounds like someone's head landed on the chopping block.
 
OP
Seadog

Seadog

iPF Noob
Joined
Mar 25, 2010
Messages
2,518
Reaction score
52
Location
Oklahoma
AnandTech have done some more scientific testing of the problem and come up with a few interesting results. Turns out the iPhone 4 actually performs slightly better inside a case than a phone like the Nexus One, which has had similar issues crop up, but it's slightly worse when held in the hand, reporting an average signal drop of 20dB. Here's where it gets a little wacky, though: the signal meter in iOS 4 is logarithmic, so that 20dB drop can either leave you looking steady at five bars or drop you all the way to zero, depending on what the actual signal level in the area is like. Take a look at the chart above and you'll get it: the range of values between one bar and four spans just 23dB, while the range for five bars is 40dB. That means holding the phone in an area with a strong five-bar signal will have no apparent effect -- you can lose 20dB at full signal and still see five bars -- but holding the phone in an area with weaker coverage will easily drop the meter to one bar, since the 20dB signal drop covers almost the entirety of the remaining 23dB scale. Oops.

I thought this was an interesting perspective on the problem. And the iOS update may also be of interest on the iPad.
 

NumbLock

iPF Novice
Joined
May 2, 2010
Messages
2,008
Reaction score
32
Location
Switzerland
The reception issues on both the iPhone 4 and iPad are a shame. About time!

It should have happened a year ago.

Detuning the antenna by physical contact with a conductive substance is so obvious as to be foolishly neglectful for any average EE.

The ibiggest Pad issue is probably software, but side-by-side comparisons to my laptop, and even a kids old, beaten iPod touch make the antenna weakness pretty obvious.
 

Most reactions

Top