Re: Change in service quality.

Cinder Lane

On Mon, Jun 23, 2008, 1:55pm (EDT+4)
noone@home.com (Larry) wrote:

>We've turned down the phone's power so far and
>eliminated all the external antenna connections,
>making the antennas more and more inefficient
>to make the glitzy girls happy until, even in flat country,
>the phones won't radiate a signal bigger than the
>noise from the sun more than a mile or two. In the
>mountains, you're lucky if it works 2 miles from the
>tower, ESPECIALLY on 1900 Mhz....

Wouldn't the shortness of an internal antenna better match the
wavelength of the *1900* MHz band, giving it *better* reception than the
800?

Dennis Ferguson

On 2008-06-23, Cinder Lane <Cinderlane@webtv.net> wrote:
> On Mon, Jun 23, 2008, 1:55pm (EDT+4)
> noone@home.com (Larry) wrote:
>
>>We've turned down the phone's power so far and
>>eliminated all the external antenna connections,
>>making the antennas more and more inefficient
>>to make the glitzy girls happy until, even in flat country,
>>the phones won't radiate a signal bigger than the
>>noise from the sun more than a mile or two. In the
>>mountains, you're lucky if it works 2 miles from the
>>tower, ESPECIALLY on 1900 Mhz....
>
> Wouldn't the shortness of an internal antenna better match the
> wavelength of the *1900* MHz band, giving it *better* reception than the
> 800?

This is true, though this is balanced by the fact that there's
no space constraint at the tower so the tower's antennas will
be better at 800 MHz even if the phone's antenna is better at 1900.
And 800 MHz signals go around things better than 1900 MHz, while
1900 MHz signals generally reflect more, so at 1900 MHz the phone's
performance will depend a lot more on being able to make constructive
use of reflected signals, something which CDMA is supposed to be good
at but which is a bit expensive in terms of processing and may be
less than perfect.

The end result may be that teeny tiny handsets with teeny tiny antennas
end up being equally bad at either frequency. If you try to fix this,
however, say by installing a car kit, 800 MHz will get better in a bigger
hurry than 1900 MHz.

Dennis Ferguson

Larry

Cinderlane@webtv.net (Cinder Lane) wrote in news:4818-486029BE-429
@storefull-3238.bay.webtv.net:

> On Mon, Jun 23, 2008, 1:55pm (EDT+4)
> noone@home.com (Larry) wrote:
>
>>We've turned down the phone's power so far and
>>eliminated all the external antenna connections,
>>making the antennas more and more inefficient
>>to make the glitzy girls happy until, even in flat country,
>>the phones won't radiate a signal bigger than the
>>noise from the sun more than a mile or two. In the
>>mountains, you're lucky if it works 2 miles from the
>>tower, ESPECIALLY on 1900 Mhz....
>
> Wouldn't the shortness of an internal antenna better match the
> wavelength of the *1900* MHz band, giving it *better* reception than
the
> 800?
>
>

No. Look where it is when you're using the phone! One side of it is
against the big dummy load your head makes absorbing all that energy the
greenies are constantly in panic about. The other side you have your
hand wrapped around, another dummy load just not as thick. Human meat
absorbs RF energy just as much as a hamburger in your microwave...turning
microwaves into heat very nicely at 800 or 1900 Mhz.....and NOT radiating
it into space, unattenuated!

If the antenna were EXTENDED above the top of your head and kept
VERTICALLY POLARIZED, not tilted back at a 45 degree angle like the phone
is when you're talking into it against your ear, THAT would radiate MUCH,
much better.

http://www.iridium.com/products/product.php?linx=0001
This one has a big, fold up antenna you extend over your head for
SATELLITE RANGE to the LEO birds. I bought it for $50 from a yacht owner
when it went dark at the Iridium bankruptcy, complete with all the
accessories, before the US Military saved the system. It's $1.50/min and
there's a prepaid plan so you don't have a monthly fee. I had it online
a couple of months while I was sailing offshore with friends. But the
idea is this antenna is why it goes so far to the birds....hundreds of
miles out of the atmosphere. I'm not sure how much power it runs when it
transmits. Talk Time is 3.2 hours on a charge, MUCH longer than I have
budget for...(c;