TELECOM Digest OnLine - Sorted: Re: Which is the Best Cellphone You Ever Used?

Re: Which is the Best Cellphone You Ever Used?

Joseph (JoeOfSeattle@yahoo.com)
Sat, 01 Jan 2005 16:18:14 -0800

On Fri, 31 Dec 2004 21:41:35 -0500, Isaiah Beard
<sacredpoet@sacredpoet.com> wrote:

>> Pull out antenna is more of a requirement with CDMA phones rather than
>> just "preference."

> It's not about whether it's a CDMA phone, it's about what frequencies
> the phone is designed for.

> If it's a 1900Mhz phone, then a stub antenna actually might be all you
> need. If it's a dual band, then often times the antenna is designed
> to favor 800Mhz, and a pull out is more desirable.

Well, real world conditions say otherwise. There are no commonly
available handsets for either TDMA (IS-136) or GSM that have pull out
antennas and they either have stub antennas or internal antennas.
TDMA and GSM handsets both use cellular 800 Mhz and PCS 1900 Mhz and
they work fine. Similar models from the same manufacturer that are
meant for CDMA will have pull out antennas where the GSM and TDMA
equivalent handsets do not. The handset manufacturers know what works
with their handsets and design antennas accordingly.

Believe it or not the reason for the development of internal antennas
for mobile phones was not just an aesthetic one. The most common
complaint handset manufacturers get is that the antennas break off too
easily. A properly designed internal antenna will give equal or
better performance to a stub antenna. Internal antennas are hardly
ever used for CDMA handsets. Such is not the case with TDMA and GSM.

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