for ($i = 2; $i < $#field; $i++) {
my ($call, $conf, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
next unless $call && $conf && defined $here && is_callsign($call);
for ($i = 2; $i < $#field; $i++) {
my ($call, $conf, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
next unless $call && $conf && defined $here && is_callsign($call);