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From: Don Pearce
Subject: Re: How does a mixer work?
Date: Thu, 17 Oct 2002 15:19:08 +0430
References: <firstname.lastname@example.org> <email@example.com> <firstname.lastname@example.org>
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On Thu, 17 Oct 2002 11:43:41 +0100, "Kevin Aylward"
>"Don Pearce" wrote in message
>> On 17 Oct 2002 08:30:56 GMT, email@example.com (Richard
>> Steven Walz) wrote:
>> >In article <firstname.lastname@example.org>,
>> >Asa Cannell wrote:
>> >>How does a mixer work? I don't understand why it needs a non-linear
>> >>element. I think examples of why a linear element (resistor) wont
>> >>would help illustrate why a non-linear element (diode) will. Also,
>> >>what does 'mutiply' mean in terms of mixing? What if two DC signals
>> >>are applied to a mixer, like 2V and 4V? Will the output be 8V?
>> >People use "mix" rather loosely in RF. Actually, a modulator
>> >A true audio mixer merely adds. Now when you add sinusoids you can
>> >up doing an effective multiplication, but that's merely a
>> Pardon? That would be a piece of maths that is new to me. Please
>> And of course the word "mixer" has no property of linearity built into
>> it. If the RF interpretation is "multiply" and the audio one is "add"
>> - they are simply different> Neither is more "right"
>Nonsense, the Yanks drive on the wrong side of the road:-)
Then they'd better not come mixing it over here (figuratively - I'm
not actually "here" but you know what I mean).
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