Tema: Re: iPhone 4 32GB kaina Londone 599 svaru
Autorius: padugne
Data: 2010-07-01 00:46:29
On Tue, 29 Jun 2010 12:42:01 +0300, md wrote:

> Legendos apacia pilnai uzdengus delnais signalo lygis krenta 15-20 dBm.
> 
> Laikant aparata delne (tipo browsinam) signalo lygis krenta 5-10 dBm.
> 
> Paemus patogiai (taip, kad kalbant nyksciu galima reguliuoti garsa) ir
> priglaudus prie ausies signalo lygis praktiskai nekrenta.

http://www.anandtech.com/show/3794/the-iphone-4-review/2

zurnabloggeriai jau pamatavo, kad iphawno worst case paemus paciu 
"blogiausiu" budu yra 24dbm, t.y. netoli to ka matome ir legendoje ar 
desire del kuriu niekas lyg ir neverke.

"Beda" jo pokazometro kreiveje, kuris anot ju -99..-51dbm ribose rodo 
pilnus 5 pagalius, o like pagaliai anot ju prapuola iki -113dbm po ko 
nutruksta rysys.

Kitaip tariant, tipiska audra stiklineje, nes zmones ziuredami i 
pokazometra tiki kad supranta ka ten mato:

================================================================
For a while, I've talked about how iOS reports the quality metric with a 
compressed, optimistic dynamic range. On iOS, 4 bars begins at around -99 
to -101 dBm. Three bars sits around -103 dBm, 2 bars extends down to -107 
dBm, and 1 bar is -113 dBm. To give you perspective, for a UMTS "3G" 
plant, -51 dBm is the best reported signal you can get - it's quite 
literally standing next to, or under a block away from a tower. At the 
other extreme, -113 dBm is the worst possible signal you can have before 
disconnecting entirely. With a few exceptions, signal power as low as -107 
dBm is actually perfectly fine for calls and data, and below that is where 
trouble usually starts. However, you can see just how little dynamic range 
iOS 4 has for reporting signal; over 40% of the range of possible signal 
levels (from -99 dBm to -51 dBm) is reported as 5 bars.
================================================================

Uztat iphawno juzeriai gali visiem rodyt kaip ju telefonas "gaudo" pilna 
tinkla ten kur kiti telefonai vargais negalais isstena 60% :)

Tiketina, kad fixas bus labai paprastas. Tiesiog pakeis pagaliu svori ir 
tiek, beigi ides papildoma uzdelsima pries rodant "smunkanti" signala.

-- 
kthxbai.