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LF: Re: Re: RE: Narrow CW filter using 32kHz clock crstals?

To: [email protected]
Subject: LF: Re: Re: RE: Narrow CW filter using 32kHz clock crstals?
From: "g6tmk" <[email protected]>
Date: Fri, 27 Sep 2002 11:56:10 +0100
References: <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: <[email protected]>
Hello Andy
I think I've answered my own question here.
I built the filter and it doesn't work with 50 ohm input/output impedance,
but it DOES work with 50k ohms.
Narrow isn't it !
I can just about hit the right frequency with a signal generator and see
some sine wave on the scope.
I haven't had a chance to put it on the spectrum analyser yet.
73
Hugh M0WYE


----- Original Message -----
From: "g6tmk" <[email protected]>
To: <[email protected]>
Sent: Friday, September 27, 2002 10:39 AM
Subject: LF: Re: RE: Narrow CW filter using 32kHz clock crstals?


Hello Andy,
In your recent posting about the 33kHz crystal filter, can you clarify
what
the characteristic impedance is ...
It is very unusual to specify an impedance in terms of a frequency, so I
feel there must be some mistake.
Thanks
Hugh M0WYE




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