[Elecraft] Blue Tooth - Freq. response

[Jim Brown]

On 2/7/2011 3:02 PM, Brian Alsop wrote:
> >  No, the gain is not constant across the segment, it is tapered so that
> >  setting two adjacent ranges to the same level creates a flat response
> >  across the "boundary."

Right. To understand this, it's important to realize that filters 
implemented in DSP are simply digital simulations of ordinary analog 
filters -- in this case, resonant circuits tuned for the desired 
frequency and bandwidth. Ideally, well-designed sets of filters should 
combine to yield minimal ripple in their amplitude and phase response if 
all (or adjacent bands) are set to the same gain. The extent to which 
this is achieved depends on the circuits that they are simulating, and 
some circuits are far better than others in this regard.

73, Jim K9YC