[Elecraft] 700 Hz Filter Benefit

[Brian Hunt]

I don't have a 700 Hz filter (yet) but this is what I'm thinking. I've discovered that the K3 NR is more effective if the DSP bandwidth is set to 1 KHz or so. When I'm searching for or copying a weak CW signal I often get AGC pumping from a strong signal close by but outside the 1 KHz passband. The 700 Hz filter would solve this. 

I currently have the 400 and 2700 Hz filters. 

73,
Brian, K0DTJ