• After 15+ years, we've made a big change: Android Forums is now Early Bird Club. Learn more here.

EVO signal doesn't drop when held...lol

THEFORCE said:
my signal increases on wifi when i touch the top right of my phone lol
Click to expand...
Haha, yeah the first video I did the signal increased. Of course my dogs started barking so I re-recorded it.

Either Steve is lying or the iPhone 4 / ATT is at fault. Sprint and the EVO are perfect. So glad I left ATT and the walled garden.
 
Apple Religion thinks that all Left Handed persons are Demons, that why they trying to force every one to hold it with the right!!:D
 
340x.jpg
 
How to make a call with YOUR new iPhone:

1) Go outside, far from any buildings, trees or structures.
2) Using ONLY your RIGHT hand, gently grasp the iPhone with a pair of tweezers as far from the "antenna" as possible.
3) Pray that you get an ATT signal.

This method does not guarantee that one will complete the entire call in which they desire, although if you stand on one leg and raise your LEFT hand, as well as turn off all wifi within a 10 mi radius, it may increase your chances.

Signed,
S. Jobs
 
actually on my Evo if I cup the top of the phone with my hand i go from 4 bars to 1 or 2 bars consistently.. I noticed this when I first got it and just tested it again... most phones I've ever had have done that...

the thing is.. i don't know anyone who cups their hand over the top when they're making a phone call.. so it doesn't bother me
 
seigex said:
actually on my Evo if I cup the top of the phone with my hand i go from 4 bars to 1 or 2 bars consistently.. I noticed this when I first got it and just tested it again... most phones I've ever had have done that...

the thing is.. i don't know anyone who cups their hand over the top when they're making a phone call.. so it doesn't bother me
Click to expand...

holding the phone in your hand and producing a 360degree barrier to signal are two completely different things. I can hold the phone however I like and dont lose any signal. If i completely block the phone i lose a bar or two. but there is a big difference... unless you sit on your phone while talking.
 
BenChase7 said:
holding the phone in your hand and producing a 360degree barrier to signal are two completely different things. I can hold the phone however I like and dont lose any signal. If i completely block the phone i lose a bar or two. but there is a big difference... unless you sit on your phone while talking.
Click to expand...

I wasn't producing a 360 degree barrier... (i have a little idea about RF signals and antenna propogation btw since I worked many years in military satcom :)) I just cup the top.. and as I explained its the way antenna's work, I realise this.. its actually the same thing that happens to the iPhone .. you have a grounded source that steals radio waves from the antenna and adds a higher noise floor increasing the SNR (signal to noise ratio) (think of a lightning rod) .. Apple was just wrong in placing it where the finger is going to hold on to the phone...

[rant]btw.. before you try to make me out to be an apple phanboi or a troll because I am disagreeing with you... read my post history you'll see I'm absolutely not, nor am I a google phanboi... pretty sad I have to explain that on this forum though[/rant][/QUOTE]
 
by cupping the top of the phone though, you are inhibiting the line of sight. Nearly all signals are inhibited by line of sight. Cupping the top of the phone just seems a bit impractical. But, that’s just me.
 
let me correct one thing.. i said CDMA antennas as if that makes sense but it doesn't because CDMA is just how your phone radio encodes the signal to share the same frequency with multiple devices.. code division multiple access uses a serial number per se while FDMA (frequency divison multiple access uses different frequencies to share bandwidth, ssma uses a peusdo random code to spread the signal across a large amount of bandwidth etc....

so i should say that antennas such as the ones in phones are not line of site since they allow for low signals (-120dbm I believe with 0db being 1mw and every 3db drop after that is half of the previous milliwattage) at relatively low frequencies so -3dbm would be .5 mw -6 dbm would be .25mw etc... etc.. all the way to -120dbm

damn this talk makes me want to pull out all my old DSCS III satellite books from my military training .... can't believe I still remember all this

edit: fixed db to dbm
 
very informative, indeed. although I can say when i put any type of barrier in front of the (or any) phone without physically touching it, there tends to be a drop in signal. which leads me that line of sight must come into play.

PS. hope you're watching Jimmy Kimmel Live... started off with iPhone jargon.. pretty funny.
 
BenChase7 said:
very informative, indeed. although I can say when i put any type of barrier in front of the (or any) phone without physically touching it, there tends to be a drop in signal. which leads me that line of sight must come into play.

PS. hope you're watching Jimmy Kimmel Live... started off with iPhone jargon.. pretty funny.
Click to expand...

I could see where you'd get that.. it sounds logical.. but then you hear the lightning rod theory and its like.. oh yeah.. i see that.. antenna propogation is actually very interesting and VERY in depth with a whole lot of math ... there are so many things that can effect a signal....

I used 60 foot antennas (the dishes alone were 60' in diameter) and talked to a geosynchronous satellite 22,300 miles (yes thats 22,300mi) away from earth in space... we used a 500watt amp to drive the signal but it relied on the parabolic reflector to amplify it enough to reach that distance.. and something as small as a bird nest (even though the birds were usually fried) would cause the signal to degrade, or being off by a small amount.. then you get into signal side lobes.. it was a mess.. but a lot of fun at the same time
 
You must log in or register to reply here.
Back
Top Bottom