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From: rbowman <bowman@montana.com>
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Subject: Re: Real-time OSs (Re: Microsoft Is Abandoning Windows 11 SE)
Date: 19 Aug 2025 00:48:56 GMT
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On Mon, 18 Aug 2025 10:39:56 +0100, The Natural Philosopher wrote:

> On 17/08/2025 22:29, rbowman wrote:
>> On Sun, 17 Aug 2025 21:02:22 +0100, The Natural Philosopher wrote:
>> 
>>> "To allow room for more stations on the medium wave broadcast band in
>>> the United States, in June 1989 the FCC adopted a National Radio
>>> Systems Committee (NRSC) standard that limited maximum transmitted
>>> *audio* bandwidth to 10.2 kHz, limiting *occupied* bandwidth to 20.4
>>> kHz. The former audio limitation was 15 kHz resulting in bandwidth of
>>> 30 kHz."
>>>
>>> So channel spacing in the USA is in fact 20Khz
>> 
>> In practice the wings from the center frequency are down so many db
>> they do not matter unless you're in front of a spectrum analyzer.
> 
> Oh dear. Well you cant argue with ignorance

You are absolutely correct. I should ignore you.