Working frequencies can be for all regions or for individual IARU
regions. This allows each mode band tuple to have one or more working
frequencies which can include local ones only offered when the user
configures their IARU region.
Change working frequency default suggestions to better fit in
FT8. General rule is FT8 is at JT65 -2kHz except where that is not
possible e.g. where that would fall into a segment not allocated for
narrow band data modes. For tight bands like top band sqeeze existing
JT65 and JT allocations to allow space for FT8.
NOTE: this change changes the WSPR frequency on 80m to allow access to
JA stations that currently have no allocation where it was placed.
ALSO NOTE: the JT65 and JT9 frequencies for 80m move down 6 kHz, again
to accommodate region 3 users. Other appliactions not within our
control should be asked to move in step when 1.8.0 is released.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7810 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
