"Ian Jackson" <ianREMOVETHISjackson@g3ohx.demon.co.uk> wrote in
message
news:PgWDb$GohyQKFwRu@g3ohx.demon.co.uk
> In message <7afod6F1vg9u0U1@mid.individual.net>, DAB sounds worse
> than
> FM <dab.is@fooked.com> writes
>
>
>>
>> * DAB uses frequencies of around 200 MHz, whereas FM uses
>> frequencies
>> of around 100 MHz - i.e. DAB couldn't be transmitted in the FM band
>> anyway
>>
> Surely there's no technical reason why DAB cannot be transmitted at
> the
> present 'FM' frequencies?


It says in the DAB spec that DAB can be transmitted at any frequency
from (IIRC) about 100 MHz up to 2 or 3 GHz, but receivers aren't
designed to receive DAB at 100 MHz, so it wouldn't be used there.


>It is arguable that propagation and RF
> penetration is better than at 200MHz. All you will need is a new
> radio.
> This will be no great hardship as, the way things are going, if they
> change DAB to DAB+ I'm going to have to change my DAB/FM radio
> anyway in
> order to receive anything at all.


Yeah, but there are no plans to add the FM band to the frequencies
that DAB receivers support (in terms of support for receiving DAB
signals - most can receive FM as well).



--
Steve - www.savefm.org - stop the BBC bullies switching off FM

www.digitalradiotech.co.uk - digital radio news & info

"It is the sheer volume of online audio content available via
internet-connected devices which terrifies the UK radio industry. I
believe that broadband-delivered radio will explode in the years to
come, offering very local, unregulated content, as well as opening a
window to the radio stations of the world." - from the Myers Report