John Wilkinson ) writes:

If I am designing a good communications receiver from 6KHz-30MHz to receive
AM, SSB and CW and want 2 good filters, what are the bandwidths I should
consider?



John, if you really want to listen to CW and FSK signals in the VLF
band (8-30 kHz) then you will find a 100 Hz filter very useful.

.... Martin VE3OAT