dx1 => 'Frequency $_[0] not in band (see show/band); usage: DX [BY call] freq call comments',
dx2 => 'Need a callsign; usage: DX [BY call] freq call comments',
dx3 => 'The callsign or frequency is invalid',
+ dx4 => 'The ip address ($_[0]) is invalid',
dxcqs => 'DX CQ Zones enabled for $_[0]',
dxcqu => 'DX CQ Zones disabled for $_[0]',
dxitus => 'DX ITU Zones enabled for $_[0]',