if ($mode eq 'RTTY') {
$mode = 'RTT';
}
-
- # We have an RBN data line, dedupe it very simply on time, ignore QRG completely.
- # This works because the skimmers are NTP controlled (or should be) and will receive
- # the spot at the same time (velocity factor of the atmosphere and network delays
- # carefully (not) taken into account :-)
-
- # Note, there is no intelligence here, but there are clearly basic heuristics that could
- # be applied at this point that reject (more likely rewrite) the call of a busted spot that would
- # useful for a zonal hotspot requirement from the cluster node.
- # In reality, this mechanism would be incorporated within the cluster code, utilising the dxqsl database,
- # and other resources in DXSpider, thus creating a zone map for an emitted spot. This is then passed through the
- # normal "to-user" spot system (where normal spots are sent to be displayed per user) and then be
- # processed through the normal, per user, spot filtering system - like a regular spot.
+ # The main de-duping key is [call, $frequency], but we probe a bit around that frequency to find a
+ # range of concurrent frequencies that might be in play.
# The key to this is deducing the true callsign by "majority voting" (the greater the number of spotters
# the more effective this is) together with some lexical analsys probably in conjuction with DXSpider
# process to just the standard "message passing" which has been shown to be able to sustain over 5000
# per second (limited by the test program's output and network speed, rather than DXSpider's handling).
- my $nqrg = nearest(.5, $qrg); # normalised to nearest Khz
+ my $nqrg = nearest(1, $qrg); # normalised to nearest Khz
my $sp = "$call|$nqrg"; # hopefully the skimmers will be calibrated at least this well!
+ my $spp = sprintf("$call|%d", $nqrg+1); # but, clearly, my hopes are rudely dashed
+ my $spm = sprintf("$call|%d", $nqrg-1); # in BOTH directions!
# do we have it?
my $spot = $spots->{$sp};
+ $spot = $spots->{$spp} if !$spot && exists $spots->{$spp};
+ $spot = $spots->{$spm} if !$spot && exists $spots->{$spm};
+
# if we have one and there is only one slot and that slot's time isn't expired for respot then return
my $respot = 0;
# clear out the data and make this now just "spotted", but no further action required until respot time
dbg "RBN: QUEUE key '$sp' cleared" if isdbg 'rbn';
+
$spots->{$sp} = [$savedtime];
shift @queue;
} else {
my $saver;
my %zone;
+ my %qrg;
+ my $respot;
+
foreach my $r (@$spot) {
# $r = [$origin, $qrg, $call, $mode, $s, $t, $utz, $respot];
my $comment = sprintf "%-3s %2ddB $quality", $r->[3], $r->[4];
my @s = Spot::prepare($r->[1], $r->[2], $r->[6], $comment, $r->[0]);
-
+ $respot = 1 if $r->[7];
++$zone{$s[11]}; # save the spotter's zone
+ ++$qrg{$s[0]}; # and the qrg
+
# save the highest strength one
if ($r->[4] < $strength) {
if ($saver) {
my $buf;
+ # create a zone list of spotters
delete $zone{$saver->[11]}; # remove this spotter's zone (leaving all the other zones)
my $z = join ',', sort {$a <=> $b} keys %zone;
- $saver->[3] .= " Z:$z" if length $z;
+
+ # determine the most likely qrg and then set it
+ my $mv = 0;
+ my $fk;
+ my $c = 0;
+ while (my ($k, $v) = each %qrg) {
+ $fk = $k, $mv = $v if $v > $mv;
+ ++$c;
+ }
+ $saver->[0] = $fk;
+ $saver->[3] .= '*' if $c > 1;
+ $saver->[3] .= '+' if $respot;
+ $saver->[3] .= " Z:$z" if $z;
+
dbg("RBN: SENDING call: $saver->[1] qrg: $saver->[0] origin: $saver->[4] $saver->[3]") if isdbg 'rbn';
if ($dxchan->{ve7cc}) {
$buf = VE7CC::dx_spot($dxchan, @$saver);