What does the Omni V rx audio bandwidth measure, that you want to increase
it? Have you run the audio into a soundcard spectrum analyzer?
I suspect it would be very easy to optimize the bandwidth. I would start
by carefully aligning the BFO oscillators to spec and then dropping in a
pair of Inrad 2.8KHz filters and measuring the passband. If it's being
constricted, I would try jumpering the SSB/CW audio coming off the product
detector (U3-6 tapped through a 1uF capacitor) to the AF Gain control
(bypassing notch filter and tone controls) and check the improvement.
That's where I would start. Depending on what I found, I would proceed
from there and see what I needed to address (if anything).
73, Barry N1EU
On Mon, Mar 2, 2015 at 4:02 AM, gary mankoff <garyjm88@gmail.com> wrote:
> ANY MOD FOR INCREASING THE RECEIVE SSB AUDIO BANDWITH ...
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