Re: Question about analog cell phones

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?

> Microwave-frequencies can be done in AM just as well
> as FM? Why not use AM?

Why not use FM?

Do you know they use FM?

> In order to avoid "clipping" and interference with nearby stations,
> the modulator signal should be attenuated prior to D-A conversion and
> transmission.

Why?

Why would you use D-A conversion at the TRANSMITTER?

> At the receiving end, the carrier signal should be
> amplified prior to demodulation and A-D conversion.

Why would you use A-D conversion at the RECEIVER?

If it's an "analog phone," why is it using A-D and D-A?

Do you know what an "analog cell phone" is?

"Radium" <glucegen1@gmail.com> wrote in message
news:1180052659.659348.44940@x35g2000prf.googlegroups.com...
> Stupid me.

At last a Radium statement I can agree with :-)

MrT.

On May 24, 8:24 pm, Radium <gluceg...@gmail.com> wrote:
> On May 24, 4:55 pm, dpie...@cartchunk.org wrote:
>
> > 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.

Do you even KNOW if they do?

You seem to read about a lot of things and still consistently,
reliably get it wrong.

> > > 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.

Wrong. Utterly, totally, completely wrong.
I sit here listening to WCRB at about 100 MHz,
55 miles away, well beyond line of site distance.

Now, once again, why NOT use FM?

> Stupid me.

Okay, you're now on record for your FIRST correct
statement. How about going for a streak?