[off-topic] [Fwd: dual band 3g reception]

[Gavin Chester]

Hi people,

I had hoped that someone could clarify this issue for me. I've done some
more reading but still can't determine the answer. Perhaps I asked the
question badly since I was confused at the time. Here it is:

Q/ Should a 3G HSDPA 2100MHz (single band) mobile handset work with
optus 900 + 2100MHz dual band tower?

FYI: IOW, the handset only gets one band, and doesn't work with the dual
band tower. Anyone know this to true of all phones or is it faulty?

Thanks.

Gavin.

-------- Forwarded Message --------
> From: Gavin Chester <gavin.chester at gmail.com>
> To: off <off-topic at plug.org.au>
> Subject: dual band 3g reception
> Date: Wed, 24 Aug 2011 00:27:48 +0800
> 
> Hi folks,
> 
> Can someone clarify for me the expected reception with dual band
> 900/2100mhz '3g' networks when using a single band 2100mhz phone? I live
> in a rural area where dual band is now very good, but the single band
> 2100mhz coverage is non-existent.
> 
> I bought a single band 2100mhz 3g phone and expected that the phone
> would get signal in my area by using the 2100mhz portion of the signal.
> Seems that is not the case. Another phone I have is dual band
> 900/2100mhz and gets very good signal, whereas the single band phone
> gets nothing.
> 
> 1/ Is it possible that the single band phone I have bought is faulty if
> not getting reception in a dual band area?
> 2/ Am I totally misunderstanding how it should work and that the optus
> dual band tower is actually only transmitting 900mhz?
> 3/ does a phone have to be dual band to work in a dual-band-only
> reception area (where it can't fall back to 2g because none avail)?
> 
> Thanks