GSM WORLD

> what a cool idea 3G on 900Mhz..........
>
>

> When I was first taught about frequencies I was always told that the
> higher the frequency, the shorter distance it could travel, so for
> example, the old orange adverts that used to say they had twice as many
> masts as Vodfafone and O2, but they were 1800mhz, so surely theyd need
> twice as many?

>
> 3G is on what, 2100? So they must need even more.
>
> This is, of course, if Im not talking balony :)

>When I was first taught about frequencies I was always told that the
>higher the frequency, the shorter distance it could travel, ...

>This is, of course, if Im not talking balony :)

>On Tue, 17 Jun 2008 21:46:42 +0100, xCx wrote:
>
>>When I was first taught about frequencies I was always told that the
>>higher the frequency, the shorter distance it could travel, ...
>
>>This is, of course, if Im not talking balony :)
>
>Thats more-or-less true at VHF and above, but not (necessarily) at
>lower frequencies. A signal at 15 MHz (say) in one of the short-wave
>broadcast bands can easily travel around the world whereas a signal at
>1.5 MHz in the medium-wave band wont. Although once you get right
>down to the low Khz frequencies, signals will again travel vast
>distances and are used to communicate with submerged submarines.
>
>Im sure you wanted to know that :-)
>
>Mike.

> In the early days of radio the short
> waves were given to amateur radio opertors because it was thought that
> they were useless due to the short ground wave travel. However, due to
> skip radio amateurs found that they could communicate over long
> distances.
>

> When I was first taught about frequencies I was always told that the
> higher the frequency, the shorter distance it could travel, so for
> example, the old orange adverts that used to say they had twice as many
> masts as Vodfafone and O2, but they were 1800mhz, so surely theyd need
> twice as many?

> When I was first taught about frequencies I was always told that the
> higher the frequency, the shorter distance it could travel, so for
> example, the old orange adverts that used to say they had twice as many
> masts as Vodfafone and O2, but they were 1800mhz, so surely theyd need
> twice as many?