Re: Analog Cell Phones: Why AM is better than FM

Analog Cell phones are no good except in emergencies. Any 12 year old geek
child with a police scanner can listen to your analog conversation.

"Radium" <glucegen1@gmail.com> wrote in message
news:1180056431.463704.325710@q19g2000prn.googlegroups.com...
> On May 24, 4:55 pm, dpie...@cartchunk.org wrote in
> http://groups.google.com/group/rec.a...b6bd964?hl=en&
> :
>
>> On May 24, 7:28 pm, Radium <gluceg...@gmail.com> wrote:
>
>> > Hi:
>
>> > Why do analog cell phones use FM? Why not AM?
>
>> Do you even know if they do?
>
> Yes. I read about it.
>
>> > Microwave-frequencies can be done in AM just as well
>> > as FM? Why not use AM?
>
>> Why not use FM?
>
> FM is limited to line of sight. AM provides the ability to converse
> over significantly longer distances than FM.
>
>> > At the receiving end, the carrier signal should be
>> > amplified prior to demodulation.
>
> The purpose of this is to "DX". This allows communications over even
> longer distances than without the DX.
>
> For best results, longwave frequencies [around 150 KHz] should be used
> along with DX.
>

"Mij Adyaw" <mij@SpamBucket.com> wrote in
news:P2w5i.272735$ZA5.43506@newsfe15.phx:

> Analog Cell phones are no good except in emergencies. Any 12 year old
> geek child with a police scanner can listen to your analog
> conversation.
>

Do the kids matter with the NSA's massive mainframe listening to your every
word?...(c;

There is no privacy, any more.

Larry
--
Grade School Physics Factoid:
A building cannot freefall into its own footprint without
skilled demolition.

Larry <noone@home.com> writes:

> "Mij Adyaw" <mij@SpamBucket.com> wrote in
> news:P2w5i.272735$ZA5.43506@newsfe15.phx:
>
>> Analog Cell phones are no good except in emergencies. Any 12 year old
>> geek child with a police scanner can listen to your analog
>> conversation.
>>
>
> Do the kids matter with the NSA's massive mainframe listening to your every
> word?...(c;

No NSA or mainframe required - the feds have direct access to any cell
conversation they want. It's built into the cell infrastructure by the
carriers. That is, if you're in the U.S.
--
% Randy Yates % "...the answer lies within your soul
%% Fuquay-Varina, NC % 'cause no one knows which side
%%% 919-577-9882 % the coin will fall."
%%%% <yates@ieee.org> % 'Big Wheels', *Out of the Blue*, ELO
http://home.earthlink.net/~yatescr