[mac4theblind] Re: field testing in iOS:

  • From: John Harden <jharden01@xxxxxxxxxx>
  • To: mac4theblind@xxxxxxxxxxxxx
  • Date: Sat, 19 Oct 2013 18:12:04 -0400

This field test is quite interesting. Sitting here at my desk I get -63. I 
cannot seem to make it stick no matter how long I hold down the power button. 
Did I do some thing wrong?

John Harden
Quality Brailler Repair LLC

For professional Perkins Braille Writer repair.
 
386-238-5871
jharden01@xxxxxxxxxx 
145 N. Halifax Ave. #605
Daytona Beach, FL 32118



On Oct 19, 2013, at 8:39 AM, David Hilbert Poehlman <poehlman1@xxxxxxxxxxx> 
wrote:

> All,
> 
> I found this to be useful so hope the author doesn't mind that I plant it 
> here.
> 
> BTW,
> Happy Catterday!
> 
> ---begin quoted message:---
> Hi all!
> Just wanted to throw in a quick tip for those of you who's not aware of this.
> To check your networks signal in a more accurate way, to check if it's the
> signal strenght that's bugging you, you can always use the iPhone Field Test.
> Just open the phone app, then the keyboard and type in:
> *3001#12345#*
> and then hit call. You'll now bring up the iPhone Field Test screen, which
> has a lot of information that I have yet to figure out. But the handy part,
> is that the bars that shows the signal strength on the left side of the
> status bar, has now changed to a number, with a minus sign in front of it.
> This is a much more accurate number than the 5 bars can give you, and you can
> also use it when calling your carrier to complain!
> Here's how it works:
> The lower the number, the better is your signal. You'll never get anything
> lower than -40, and that's the theoretical signal you may get when standing
> right beside a network base station. But considering that 5 bars is equal to
> around -80, you can get much more information from this.
> I think 2 bars is somewhere around -100, and above -100 you will find that
> your voice begins dropping out and making wierd noises while on a phone call.
> -110 is the place where the whole phone calls starts dropping out and you'll
> have to constantly try to call your conversation partner back, even though
> you'd probably not have any good luck doing that.
> At around -120 - -130 the network announced will fall out, and "No service"
> will appear in stead in the status bar.
> That's it, a lot more accurate information to get from this hidden iPhone
> feature than the common signal bars.
> Oh, and a last tip:
> If you want this to stick in your status bar, so that you can always switch
> between signal strength in bars or this number, which I believe is given in
> dBm's, you can do this:
> While the Field test screen is open, hold down the Sleep/On/Off-button until
> the slide to turn off appears. Then, don't slide to turn off the phone, but
> hold the home-button down for a few seconds, to force quit the field test
> app, and return to the home-screen again.
> Now you can double-tap the area in the statusbar where the signal strength is
> shown to switch between this dbm-number and the more common known bars.
> 
> 
> 
> -- 
> Jonnie Appleseed
> With His
> Hands-On Technolog(eye)s
> touching the internet
> Reducing Technology's disabilities
> One Byte At a time
> 

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