it may happen here eventually, but I think it will be a while yet. Norway
was primed to do it now as they have very mountainous terrain to contend
with. I'll bet the multi-path there is harrendous. Also, I believe all the
broadcasting there is done nationally. Its a small enough country that they
can do that successfully. The DAB digital system is already well-established
there. 73. Lou WA3MIX
Lou Kolb
Voice-over Artist:
Radio/TV Ads, Video narrations
Messages On-hold:
www.loukolb.com
----- Original Message -----
From: "Dr. Ronald E. Milliman" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, April 25, 2015 2:08 PM
Subject: Re: What is "FM Width"?
> Speaking of FM broadcasting, I think Norway is symbolic of the future of
> the
> commercial FM band; the entire country of Norway is converting entirely to
> digital broadcasts on the FM band. All stations must make the conversion
> by
> 2017.
>
>
> Ron, K8HSY
>
>
>
> -----Original Message-----
> From: For blind ham radio operators [mailto:[log in to unmask]]
> On Behalf Of Howard, W A 9 Y B W
> Sent: Saturday, April 25, 2015 1:01 PM
> To: [log in to unmask]
> Subject: Re: What is "FM Width"?
>
> As I assume you know, FM stands for Frequency Modulation. The standard
> for
> many years was a deviation of 5 KHz meaning when you modulate an FM
> carrier,
> it changes in frequency up to plus and minus 2.5 KHz. Narrow FM
> modulation
> is a lesser deviation, 2.5 KHz and 2 KHz. The reason for a narrow
> deviation
> is to allow a more efficient use of the radio spectrum. We are talking
> about two way radio communications above and as a side note, Broadcast FM
> has a deviation of plus or minus 75 KHz. As the deviation widens, the
> fidelity of the transmitted audio increases. This is why the deviation of
> FM broadcasts have such a wide deviation.
>
> Howard #3
>
> ----- Original Message -----
> From: "Richard B McDonald" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Saturday, April 25, 2015 10:26 AM
> Subject: What is "FM Width"?
>
>
>> Hi!
>>
>>
>>
>> So, I am aware that the "width" of an FM signal can be set to "wide" or
>> "narrow", but what does that mean? Under what circumstances would you
>> use
>> one or the other.
>>
>>
>>
>> 73,
>>
>> Richard KK6MRH
>
>
> ---
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