Topband: CY9C

[sawyered at earthlink.net]

While I have not seen the discussed in band CW and FT8 RX/TX design, it is
an entirely different problem to have 2 narrow slices that don't move in
band vs having 2 TX/RX stations that need to operate on any set of
frequencies of the entire CW or SSB portion of a band.

 

5khz and 3 khz separated by 50khz is the challenge required by the described
DXpedition issue.  And you can insure those slots never change after design.

 

Ed  N1UR