+#
+# the DX command
+#
+# this is where the fun starts!
+#
+# Copyright (c) 1998 Dirk Koopman G1TLH
+#
+# $Id$
+#
+
+my ($self, $line) = @_;
+my @f = split /\s+/, $line;
+my $spotter = $self->call;
+my $spotted;
+my $freq;
+my @out;
+
+# first lets see if we think we have a callsign as the first argument
+if ($f[0] =~ /[A-Za-z]/) {
+ $spotter = uc $f[0];
+ $freq = $f[1];
+ $spotted = uc $f[2];
+ $line =~ s/^$f[0]\s+$f[1]\s+$f[2]\s*//;
+} else {
+ $freq = $f[0];
+ $spotted = uc $f[1];
+ $line =~ s/^$f[0]\s+$f[1]\s*//;
+}
+
+# check the freq, if the number is < 1800 it is in Mhz (probably)
+$freq = $freq * 1000 if $freq < 1800;
+
+# bash down the list of bands until a valid one is reached
+my $valid = 0;
+my $bandref;
+my @bb;
+my $i;
+
+L1:
+foreach $bandref (Bands::get_all()) {
+ @bb = @{$bandref->band};
+ for ($i = 0; $i < @bb; $i += 2) {
+ if ($freq >= $bb[$i] && $freq <= $bb[$i+1]) {
+ $valid = 1;
+ last L1;
+ }
+ }
+}
+
+push @out, "Frequency $freq not in band [usage: DX freq call comments]" if !$valid;
+return (1, @out) if !$valid;
+
+# send orf to the users
+my $buf = sprintf "DX de %-7.7s %13.1f %-12.12s %-30.30s %5.5s\a\a", $spotter, $freq, $spotted, $line, ztime(time);
+DXProt::broadcast_users($buf);
+
+# Store it here
+Spot::add($freq, $spotted, time, $line, $spotter);
+
+# send it orf to the cluster (hang onto your tin helmets)!
+DXProt::broadcast_ak1a(DXProt::pc11($spotter, $freq, $spotted, $line));
+
+return (1, @out);