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From: Richard Rasker
Subject: Re: Building a simple video low pass filter
Date: Fri, 10 Jan 2003 20:34:28 GMT
Organization: de Kooi Internetdiensten
NNTP-Posting-Date: Fri, 10 Jan 2003 20:34:29 +0000 (UTC)
X-Newsreader: Mozilla/3.0 (compatible; StarOffice/5.2;Linux)
On 1/10/03, 9:02:05 PM, firstname.lastname@example.org (nonophil) wrote:
> I am trying to build a simple video low pass filter. My goal is to
> reduce the output bandwidth of a digibox because my TV can't handle
> sharp signal transitions without ringing artefacts.
> The filter should cut frequencies > 5Mhz without creating an impedance=
> mismatch (digibox, cable and TV are 75 Ohms).
> I used an interactive web-based L-C filter designer to mock-up a 3
> poles 75 Ohms low pass filter
> Would that work or am I missing something ? Any other ideas ?
Seems quite all right - but why not just build it and see what it does? =
Slapping two inductors and a capacitor (the low load impedance solution)=
together takes les time than it takes me to type this reply, and the=20
costs of the parts are negligible.
Linetec Translation and Technology Services
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