Hi Rodine,

Thanks for adding to this debate. However, from your
statement below, think you are missing the substance
of our (at least mine) argument(s). You said:

"I am really disturbed when people critise
good things, especially when it is free, no
conditions attached and  directly benifits the
Gambia people.  Are the Gambians not sofisticated
and deserve such advance technology, or do wish that
all the new radio and TV stations in the near future
be the old nosiy obsolete AM type?"

I did not write to disapprove of the new FM station. I
only wrote to rectify Mr. Gassama, and help enlighten
some of the folks who are not familiar with this FM/AM
stuff. Thus, I don't believe am criticizing by
indicating that:

1. NOT all FM transmissions are digital.

2. if the new station is indeed a digital station,
then Gambians have to have a digital receiver to tune
in.


In this paragraph, you said:

"In UK here I know that some radio stations are
transmitting in digital for better quality sound and
less bandwith as somebody mentioned earlier and yet
the digital radio receivers are just about to come
out in the market at about £99.00 / set."

Yes, digital transmission gives better sound quality,
however, it uses MORE bandwidth compared to an analog
transmission. There is a trade-off, i.e., give up more
spectrum for a better sound quality. The extra
bandwidth is used in complex processes like:

1. Baseband processing (PCM) - sampling, quantizing,
waveform coding etc.

2. Modulation - ASK, FSK, PSK

3. Selection

4. Demodulation

This is just to name a few of the processes. Anyway,
thanks a bunch for your contributions this topic.

Cheers,

Morrie K.




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