Reception 'issue' variable depending on location...

I have just conducted a bit of a test whilst out to post some mail.

At home (where my signal is notoriously poor, and where my nokia was awful) my signal is ok on the iphone4, but definitely drops if i hold the phone in such a way as to cover the bottom left hand corner. So you could in fact argue that the iphone4 is doing an ok job of getting a signal. But you would also say that holding the phone effects the reception.

Whilst out to the post box I stopped where i had 5 bars 3G reception (in its car cradle), i stopped and held the phone in the death grip, no change, 3 mins later, no change. I removed the bumper (sorry, forgot to mention i have a bumper), so, i removed the bumper, and held again, ensuring i was doing my best to cause the issue, no change! No issue!!

So, i have to conclude from this unscientific test, that the phone is not effected to any great extent where the signal is good in the first place. Where the signal is poor (my house), the iphone seems to do a good job of getting one, but can then be effected by holding it!

Can anyone else try to repeat this type of test?

What do people think?

iPhone4, iOS 4

Posted on Jul 1, 2010 1:26 AM

Reply
23 replies

Jul 1, 2010 1:33 AM in response to garyroberts101

Your observations correlate with the reports conducted by others online, they conclude that the iPhone 4 antenna design array is infact the best array in the mobile market and can provide better signal capture than other devices

It does however also mean that signal loss can be observed by dielectric polarisation

In areas I struggled to get signal, I can now get 3 bars on iPhone 4

Jul 1, 2010 2:47 AM in response to StuartDonaghy

I can confirm your findings Stuart. At work I was able to use the death grip on my phone and not lose any bars in our break room. I moved to another section of the building and was able to consistently drop the bars by holding the phone. I then went to my desk and once again could not make the bars drop even after holding the phone for ten minutes.

I don't know what this means but this was my experience.

Jul 1, 2010 2:59 AM in response to Dan Slocum

Hi everyone, I just got my iphone 4G a few days ago and I must say- this is the best phone Ive ever owned in my lifetime- although I havent tried any of the other new phones- I just wanted to share my experiance with this- First off I bought a case the day I got my new iphone 4G- I just think thats the logical thing to do after all- the first thing that ran through my mind was to protect the glass screens- Maybe some people don't want to invest money in buying a case but come on, $30 bucks is not alot of money and infact one of the employees at AT&T actually gave me one for free since i brought a friend with me who also upgraded to the new iphone-

I havent had any problems with reception except in certain areas that AT&T doesnt have good coverage but thats not the iphones fault- I don't understand why people have to make such a big deal with the new antenna- infact I tried to press down in the bottom corner to see if its true but nothing happened- maybe people purposely trying to make the antenna have a problem are trying to find a reason to make a deal out of it-

No product is going to be 100% perfect and seriously if you weigh out all of the cool features and everthing that the iphone 4G does- is the antenna issue really that unbareable-

Anyways putting a case over the phone does cover the metal bands and protects the back glass- so why wouldnt anyone wanna buy a case for their new iphone?

Thats like saying when you buy a pair of contacts, wouldnt the logical thing to do is to buy a case and a bottle of solution- and even though some people think its uneccessary some people buy the cleaner to clean their contacts?

Anyways- im only here to say that Im happy with my phone and I havent seen any problems what so ever- all this negative feedback- i decided to post something positive-

Remember back in the days when cellphones cost over $1,000- didnt have video recording especially HD recording didnt exist- no camera, no app store, horrible reception and battery life- expensive phone plan, no Wi-Fi, Bluetooth, no color, no touchscreen, no internet, extremely slow- very limited on storage space, extremely big and ugly in design...

And some of you guys out there complaining that you paid $199 or $299 for a phone with all these features and more listed above and making a big deal over something thats really not an unbearable problem that can be avoided =)

its so funny how quick the world forgets- personally i thank apple for stirring up the business world forcing all the companies to finally wake up and give us what weve been demanding- if apple never released the iphone in 2007, how long would we have to wait for someone else to do it?

Jul 1, 2010 3:27 AM in response to garyroberts101

That's normal that some people don't see any impact on some location.

As measured and reported by AnandTech the 5 bar signal strength interval is between -91 and -51dB and the impact of death grip is at worse of 24dB when holded tightly.

So if you have, let say -65dB without holding the phone and do the death grip, you'll go to -89dB, which is still in the 5 bar interval, so you'll still have 5 bars and so no visible impact with the bar measure system.

But if you already have only -89dB, your iPhone will display a full 5 bars, but whenever you do the death grip tightly you go down to -113dB, which will give you only 1 bar!

This is why sometimes you see no impact, and in other places you see a huge impact.

There is clearly something not very accurate with the bar measure system, because having the 5 bar with a such important interval (40dB) while others have only a 10dB or less interval. That give the impression that the signal loss is not as important when you have a very strong signal and more important when you signal is moderately strong, while the impact is in fact strictly indentical.

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Reception 'issue' variable depending on location...

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