[hpsdr] Odyssey Siren Design

[Philip Covington]

On 9/29/06, Nyall Davies <nyalldavies at ukonline.co.uk> wrote:
> ***** High Performance Software Defined Radio Discussion List *****
> Yes I know that they need C in the I/P O/P but it is a lot simpler than
> playing with pot. chains and an FST3125.

Hi Nyall,

The requirement for input and output coupling capacitors puts you in
the same situation as the QSD using passive integration - the
impedance looking into the QSD is all over the place whether you are
in band or out.

73 de Phil N8VB

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