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Apple Hires Antenna Engineers. Really.
kangsterizer writes "Sometimes, news items are just about a good laugh. You may or may not like Apple, but the way it has been handling its antenna issue has been like a small tech soap opera — Steve Jobs, the CEO, saying 'not to hold the phone that way,' rumors of software issues, and the latest but most crunchy part, since the antenna issue has been widely discovered, on 23 June, several 'antenna engineer' positions opened up at Apple. Seems someone got fired:
Antenna engineer job position 1,
Antenna engineer job position 2,
Antenna engineer job position 3."
I just figure they did all their testing in California, where AT&T dropping calls is as common as $4 coffees.
"If you experience problems with links sending you to the wrong URLs, just don't click on them that way." -Steve Jobs, paraphrased
Living With a Nerd
From a memo to AppleCare reps:
Exact procedures AppleCare reps must follow when dealing with any reception complaints regarding the iPhone 4.:
1. Keep all of the positioning statements in the BN handy – your tone when delivering this information is important.
a. The iPhone 4’s wireless performance is the best we have ever shipped. Our testing shows that iPhone 4’s overall antenna performance is better than iPhone 3GS.
b. Gripping almost any mobile phone in certain places will reduce its reception. This is true of the iPhone 4, the iPhone 3GS, and many other phones we have tested. It is a fact of life in the wireless world.
c. If you are experiencing this on your iPhone 3GS, avoid covering the bottom-right side with your hand.
d. If you are experiencing this on your iPhone 4, avoid covering the black strip in the lower-left corner of the metal band.
e. The use of a case or Bumper that is made out of rubber or plastic may improve wireless performance by keeping your hand from directly covering these areas.
2. Do not perform warranty service. Use the positioning above for any customer questions or concerns.
3. Don’t forget YOU STILL NEED to probe and troubleshoot. If a customer calls about their reception while the phone is sitting on a table (not being held) it is not the metal band.
4. ONLY escalate if the issue exists when the phone is not held AND you cannot resolve it.
5. We ARE NOT appeasing customers with free bumpers – DON’T promise a free bumper to customers.
This space for rent.
...must be left-handed
OP have you ever used an Android phone? The platform is maturing extremely fast. I just switched from an iPhone 3g to an Evo 4g and I don't have regrets. The features of the iPhone 4 just didn't impress me enough. Plus, once I got an android I realized how much the iPhone was stifling my inner geek. I've loaded custom roms, overclocked, rooted, everything...It has been a lot of fun and I recommend android to any geek I know. And if you're not a geek, I still recommend it.
Ok, I do have ONE regret about my switch: a unified mailbox. There's probably one in the android market...hmmm brb!
Someone got fired, or they just realised that you can't expect it to work properly if you don't hire experts. Reminds me of all the issues with noise in the G5 towers getting onto the supply rails and then into the audio I/O and Firewire power that lead to them hiring analog electronics experts to fix it. When I first read that the stainless steel surround was an antenna, I predicted these kinds of problems - you can't expect an antenna to maintain tuning while allowing a meatbag to touch it, especially when you need to be able to tune several microwave bands from hundreds of MHz to GHz. The laws of physics are against you, and any engineer should be able to point that out. Other handsets have issues where your hand can obstruct the signal, but the iPhone 4 is unique in allowing you to place things in galvanic contact with the antenna, which has a far bigger effect on its RF performance.
Somehow I doubt it was the idea of an antenna designer to put it on the outside where one would hold it. Anyone with any antenna theory knowledge at all knows that your gain would then be changed easily based on how it was held by a conductor (eg, you)
The only think you could blame the antenna engineer for is not properly stating what a bad idea it is.
Heck, it's entirely possible they didn't have any antenna engineers and now realize that's probably idea for a product masquerading as a phone.
So candidate "X": how would you deal with RF absorbtion and detuning of a microwave antenna when brought into close proximity of a human body?
< candidate answers, based on practical experience >
Interviewer writes down answer, says "That's very interesting, next candidate please"
politicians are like babies' nappies: they should both be changed regularly and for the same reasons
Hands on experience is required
...Putting the horse behind the cart?
It's a perfectly good solution if you're headed downhill.
iPhone noTouch
Because it's too expensive and time consuming to remove the word "beta" from the website?
They did the testing with the iPhone 4 inside an iPhone 3GS case... so no one would know what it was.
a fanboi would probably suggest sucking Steve Jobs' dick as a solution.
I tried that when my new phone starting dropping calls, but he kept telling me "not to hold it that way."
...
Thank you, thank you. I'll be here all week. Tip your waitress, try the veal.
Completely unrelated, but do you realize that even VHS tapes must have gone through beta-testing?
Now all Apple needs to do is make a commercial with MC Hammer.
"Can't touch this!"
Best part is, they could use the same video - it's already people dancing in front of a white background. Just crank up the contrast until the people turn into silhouettes, and add some headphones.
http://www.youtube.com/watch?v=2c4L4CPfQY8
Well, they probably did test, but their testing apparently included a case that looked like the iphone 3gs to hide the fact that someone was out using a new iPhone. I'm wondering if that's why they didn't discover the issue sooner. None of the testers were using bare phones.
What do you EXPECT me to do on these phones, anyway?
I expect you to DIE, Mr. Bond.
Living With a Nerd
A good guess, actually, because when you're doing FCC testing, you pretty much use an instrumented RF chamber to gather field data. You can't have people in it for obvious reasons.
Even in real world testing, you might not find it - after all, once this hit, people have tried to replicate the result, failed, then watched a dozen YouTube videos seeing how to replicate it. After seeing them, they have to purposely set their hands in one position. Other people, trying to see the effect, have dropped their phones. It really depends how you hold the phone - some people like ot hold the bottom and use leverage to hold it to their ear (results in problem - you have to "cup" the bottom), others hold the top and press their hands to their ear. The latter, except for those with the right hand geometry, probably can't figure out how to do it.
Hell, I've seen phones where the radio locks up if you do *just* the right set of motions. One of my coworkers spent a week riding the commuter train with a phone, laptop, and debug hardware because that was the only reliable way to reproduce the issue. And you have 5 minutes because it happens in just one particular part, then you get off and have to ride it the other way to set up for the next round of debugging.
For phone testing, there's tons of issues a limited testing won't find. The only way you'll find them is well, release it to the public
Disclaimer: I am an engineer (electrical test, in fact) so I'm a bit biased. But from the brief insights that we can get about the Apple development process, Jobs loves to keep different parts of the organization completely oblivious from each other. My guess is that the actual antenna engineers never had knowledge of the final design of the phone. The process guys designing the machining to make the external antenna probably didn't know they were making antennas. The only people that probably knew the whole picture was Jobs, Ive, and the usual group that is in that iPhone 4 video shown during the keynote.
If statistically it is shown to be a huge problem as such to trigger a recall, the board should do its job and hold one someone in this high level team responsible. Obviously, it is a cultural thing with Jobs. He loves to get feedback of what is possible from the engineering staff and then ignore it. For example, the Mac Mini. He famously asked what was the smallest computer they could build at the time. He got feedback and then said make it 1" smaller in each dimension. Sometimes it works. I have done some of my best work for people who were similar, just unflinching in their demands. It is gratifying to complete such a project. However, this time taking industrial design over engineering backfired, and big time. Apple has been inching towards this day for a long time. For example, why no strain relief on the old Macbook MagSafe connectors? Aluminum backs on the original iPhone? I'm hopeful that this episode shakes up the culture and process a little bit. Enough to be cautious when necessary, but not to stifle their crazy industrial design creativity either.
BP is now hiring drilling engineers. There's never enough money to do it right the first time but there's always money to try to fix it the second time.
Kwisatz Haderach
Sell the spice to CHOAM
This Mahdi took Shaddam's Throne
The reason they didn't detect the issue is because all of their phones where in cases to protect their identity. so yeah, it's definitely biting them in the ass
They probably didn't bother with any engineers for it. I would guess that in their phones they normally use off-the-shelf antenna designs. So I could see that they have no need for an engineering department. Also, when it comes to antennas for cell signals, there are some pretty well established designs/rules to use.
So my bet is that the marketers started going wild. They figured it'd look at really cool if the phone was all glass, thin, with the antenna as a metal band running around it. That layout for antenna was generally ok, so a prototype was built. It was tested sitting on a desk, and worked fine. Things moved forward. However all testing was done in non-real circumstances, either sitting on a bench in a lab or using disguised prototypes, that didn't have the same structure as the final thing. Everything looked good, product launched, shit hit the fan.
At no time was an actual engineer in this area consulted.
I would say this is the most likely scenario. Not that there was some dumbass engineer that didn't know or whatever, but that there was NO engineer, that nobody with antenna design expertise was ever consulted. It was done because it looked cool, without proper thought given to all the functional constraints. A marketing decision, not an engineering one. Now, given the problems, they are hiring engineers to try and keep it from happening again.