[Lowfer] Phasing exciters

[John Andrews]

Stewart,

> By using both output channels of the sound card, and
> doing the audio phase shift in software, a phasing
> network is not needed.

Excellent point(s). The big catch is that most of us aren't writing the
sound card software, and have no way to generate the quadrature output.

I think that the frequency range for both the LO and the audio is small
enough to permit a simple hardware solution that would work with existing
software.

John Andrews