"FM" Or "NFM" For Coast Guard Freq's ?

[Robert11]

Hello:

Setting up my scanner.

For the Coast Guard frequencies around 156 and 164 MHz, do I want to set
the mode as "FM" or "NFM" ?

Might as well also ask: In general, where are each used ?

Thanks,
Bob

[Volker Tonn]

Robert11 schrieb:
> Hello:
>
> Setting up my scanner.
>
> For the Coast Guard frequencies around 156 and 164 MHz, do I want to set
> the mode as "FM" or "NFM" ?
>
> Might as well also ask: In general, where are each used ?
>

(W)FM with BW of around 200khz is regulary used only for radio and TV
broadcasst.

(N)FM transmission have BW of 12-16khz and 20 or 25 khz channel spacing
in very most cases. One exception for example are (NOAA-)weather
satellites using BW of 30-35khz.

[Tom S]

> On Tue, 17 Aug 2004 10:38:10 -0400, "Robert11" >
wrote:
>
> >Hello:
> >
> >Setting up my scanner.
> >
> >For the Coast Guard frequencies around 156 and 164 MHz, do I want to set
> >the mode as "FM" or "NFM" ?
> >
> >Might as well also ask: In general, where are each used ?

Go narrow. If it sounds distorted go to wide.