[Elecraft] K3 SSB filters

[Wes]

Until you get down to the noise floor isn't it always the sum (in dB) of the 
rejection?

Wes  N7WS

On 3/31/2020 8:52 PM, Jim Brown wrote:
> On 3/31/2020 8:36 PM, Don Wilhelm wrote:
>> What the roofing filters will do is keep the receiver from reducing the 
>> hardware AGC for stations which are within the roofing filter passband.
>
> In addition, when the DSP IF filters are set to about the same width as the 
> roofing filters, the two filters "cascade" -- the rejection of adjacent 
> signals is the sum of the rejection of the two filters.
>
> 73, Jim K9YC