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Re: [RTTY] 300hz or 500hz IF filter?

To: RTTY Reflector <rtty@contesting.com>
Subject: Re: [RTTY] 300hz or 500hz IF filter?
From: Kok Chen <chen@mac.com>
Date: Sat, 24 Aug 2013 10:41:36 -0700
List-post: <rtty@contesting.com">mailto:rtty@contesting.com>
On Aug 24, 2013, at 10:06 AM, Bill Turner wrote:

> I can accept that, as well as 98% or 98.5% or practically anything in that
> area, but that's not what you originally said. 

Ah, the crux is this Bill.

If you use 98%, you may get a bandwidth number of, say 1000 Hz.

And if you use a 99% number, you may get 1001 Hz.

And if you use a 99.9% number, you may get 1001.1 Hz.

And if you use a 99.99% number, you may get 1001.11 Hz.

et cetra, et cetra.

The key is that for any physical signal, that set of bandwidth numbers forms a 
convergent series -- it converges to a finite number -- just as Achilles 
catches the Hare in the end, in Greek mythology.

73
Chen, W7AY

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