diff --git a/sw/ground_segment/cockpit/Paparazzi/ND.pm b/sw/ground_segment/cockpit/Paparazzi/ND.pm
index 56b54f621f..7c3db7b527 100644
--- a/sw/ground_segment/cockpit/Paparazzi/ND.pm
+++ b/sw/ground_segment/cockpit/Paparazzi/ND.pm
@@ -51,10 +51,15 @@ sub put_lls {
 }
 
 sub selected_ac {
-  my ($self, $old_ac, $new_ac) = @_;
+  my ($self, $previous_ac, $new_ac) = @_;
+  $previous_ac->detach($self, '-svsinfo', [\&foo_cbk, '-svsinfo']) if ($previous_ac);
+  $new_ac->attach($self, '-svsinfo', [\&foo_cbk, '-svsinfo']);
   
+}
 
-  
+sub foo_cbk {
+  my ($self, $field, $aircraft, $event, $new_value) = @_;
+  $self->configure('-sats', $new_value);
 }
 
 sub build_gui() {
@@ -116,7 +121,7 @@ sub build_gui() {
 		{ -chn => 6 , -svid => 30, -flags => 0x01, -qi => 0, -cno => 42.2, -elev => 53, -azim => 161, -prres => 0.},
 	      ]
     };
-  $self->{Sat}->configure( -sats => $sat_h);
+#  $self->{Sat}->configure( -sats => $sat_h);
   $self->{Sat}->configure( -fix => 30.);
 
 #  my $engine_h = { -nb_engine => 2,
diff --git a/sw/ground_segment/cockpit/Paparazzi/SatPage.pm b/sw/ground_segment/cockpit/Paparazzi/SatPage.pm
index 03f8296f8c..703f1ef018 100644
--- a/sw/ground_segment/cockpit/Paparazzi/SatPage.pm
+++ b/sw/ground_segment/cockpit/Paparazzi/SatPage.pm
@@ -28,19 +28,23 @@ sub sats {
   my $nb_ch = $new_val->{-nch};
   my $sats =  $new_val->{-sats};
   my $zinc = $self->get('-zinc');
-  foreach my $sat (@{$sats}) {
-    my $sat_obj = $self->{satellites}->[$sat->{-chn}];
-    $zinc->coords($sat_obj->{-group}, $self->get_pos($sat->{-elev}, $sat->{-azim}));
-    $zinc->itemconfigure ($sat_obj->{-group},
-			  -visible => 1,
-			 );
-    $zinc->itemconfigure ($sat_obj->{-arc},
-			  -fillcolor =>  $sat->{-flags} & 0x01 ? "green3" : "red",
-			 );
-    $zinc->itemconfigure ($sat_obj->{-id_lab},
-			  -text => sprintf("%d", $sat->{-svid}),
-			 );
-    $sat_obj->{-sig_view}->configure(-sat => $sat);
+
+  foreach my $i (0..MAX_CH-1) {
+    my $sat_obj = $self->{satellites}->[$i];
+    unless ($new_val->{svid}->[$i] eq '' or $new_val->{svid}->[$i] == 0) {
+      my $pos = $self->get_pos($new_val->{elev}->[$i], $new_val->{azim}->[$i]);
+#      print "in SatPage::sats $i $new_val->{svid}->[$i] $new_val->{elev}->[$i], $new_val->{azim}->[$i] @{$pos}\n";
+      $zinc->coords($sat_obj->{-group}, $pos);
+      $zinc->itemconfigure ($sat_obj->{-group}, -visible => 1 );
+      $zinc->itemconfigure ($sat_obj->{-arc},
+			    -fillcolor =>  $new_val->{flags}->[$i] & 0x01 ? "green3" : "red",
+			   );
+      $zinc->itemconfigure ($sat_obj->{-id_lab},
+			    -text => sprintf("%d", $new_val->{svid}->[$i]),
+			   );
+      $sat_obj->{-sig_view}->configure(-svid => $new_val->{svid}->[$i], -cno => $new_val->{cno}->[$i]);
+    }
+    else { $zinc->itemconfigure ($sat_obj->{-group}, -visible => 0 )}
   }
 }
 
diff --git a/sw/ground_segment/cockpit/Paparazzi/SatSigView.pm b/sw/ground_segment/cockpit/Paparazzi/SatSigView.pm
index 8e412a9321..5f82a4e2cf 100644
--- a/sw/ground_segment/cockpit/Paparazzi/SatSigView.pm
+++ b/sw/ground_segment/cockpit/Paparazzi/SatSigView.pm
@@ -20,7 +20,8 @@ sub populate {
 		    -origin  => [S_NEEDINIT, S_PASSIVE, S_RDONLY, S_OVRWRT, S_NOPRPG, undef],
 		    -width   => [S_NEEDINIT, S_PASSIVE, S_RDONLY, S_OVRWRT, S_NOPRPG, undef],
 		    -height  => [S_NEEDINIT, S_PASSIVE, S_RDONLY, S_OVRWRT, S_NOPRPG, undef],
-		    -sat =>     [S_NOINIT,   S_METHOD,  S_RDWR,   S_OVRWRT, S_NOPRPG, undef],
+		    -svid =>     [S_NOINIT,   S_METHOD,  S_RDWR,   S_OVRWRT, S_NOPRPG, undef],
+		    -cno  =>     [S_NOINIT,   S_METHOD,  S_RDWR,   S_OVRWRT, S_NOPRPG, undef],
 		   );
 }
 
@@ -30,11 +31,16 @@ sub completeinit {
   $self->build_gui();
 }
 
-sub sat {
+sub svid {
   my ($self, $old_val, $new_val) = @_;
   return unless defined $new_val;
-  $self->get('-zinc')->itemconfigure($self->{-id_lab},  -text => sprintf("%d", $new_val->{-svid}));
-  $self->get('-zinc')->itemconfigure($self->{-sig_lab}, -text => sprintf("%.1f db", $new_val->{-cno}));
+  $self->get('-zinc')->itemconfigure($self->{-id_lab},  -text => sprintf("%d", $new_val));
+}
+
+sub cno {
+  my ($self, $old_val, $new_val) = @_;
+  return unless defined $new_val;
+  $self->get('-zinc')->itemconfigure($self->{-sig_lab}, -text => sprintf("%.1f db", $new_val));
 }
 
 sub build_gui {
diff --git a/sw/lib/perl/Paparazzi/Aircraft.pm b/sw/lib/perl/Paparazzi/Aircraft.pm
index 3cf11f730c..46c81030ac 100644
--- a/sw/lib/perl/Paparazzi/Aircraft.pm
+++ b/sw/lib/perl/Paparazzi/Aircraft.pm
@@ -76,12 +76,7 @@ sub populate {
 		    amp           => [S_NOINIT,   S_PASSIVE,  S_RDWR,   S_OVRWRT, S_NOPRPG, 0.],
 		    energy        => [S_NOINIT,   S_PASSIVE,  S_RDWR,   S_OVRWRT, S_NOPRPG, 0.],
 
-		    svid          => [S_NOINIT,   S_PASSIVE,  S_RDWR,   S_OVRWRT, S_NOPRPG, []],
-		    flags         => [S_NOINIT,   S_PASSIVE,  S_RDWR,   S_OVRWRT, S_NOPRPG, []],
-		    qi            => [S_NOINIT,   S_PASSIVE,  S_RDWR,   S_OVRWRT, S_NOPRPG, []],
-		    cno           => [S_NOINIT,   S_PASSIVE,  S_RDWR,   S_OVRWRT, S_NOPRPG, []],
-		    elev          => [S_NOINIT,   S_PASSIVE,  S_RDWR,   S_OVRWRT, S_NOPRPG, []],
-		    azim          => [S_NOINIT,   S_PASSIVE,  S_RDWR,   S_OVRWRT, S_NOPRPG, []],
+		    -svsinfo       => [S_NOINIT,   S_PASSIVE,  S_RDWR,   S_OVRWRT, S_NOPRPG, undef],
 
 		    rc_status     => [S_NOINIT,   S_PASSIVE,  S_RDWR,   S_OVRWRT, S_NOPRPG, 0.],
 		    rc_mode       => [S_NOINIT,   S_PASSIVE,  S_RDWR,   S_OVRWRT, S_NOPRPG, 0.],
diff --git a/sw/lib/perl/Paparazzi/AircraftsManager.pm b/sw/lib/perl/Paparazzi/AircraftsManager.pm
index 9bd84cd57b..b976fd069d 100644
--- a/sw/lib/perl/Paparazzi/AircraftsManager.pm
+++ b/sw/lib/perl/Paparazzi/AircraftsManager.pm
@@ -113,36 +113,26 @@ sub on_ac_msg {
 #  print "AircraftsManager::on_ac_msg : $msg_name\n".Dumper($fields);
   if (defined ($aircraft)) {
     delete $fields->{ac_id};
-    $aircraft->configure(%{$fields});
+    if ($msg_name eq "SVSINFO") {
+      $aircraft->configure(-svsinfo => $fields);
+    }
+    else {
+      $aircraft->configure(%{$fields});
+    }
   }
   else {
     print STDERR "in AircraftsManager::on_ac_msg : unknow aircraft $ac_id in message $msg_class:$msg_name\n";
   }
 }
 
-sub on_sv_info {
- my ($sender_name, $msg_class, $msg_name, $fields, $self) = @_;
- print "in AircraftsManager::on_sv_info\n".Dumper($fields);
-
-
-
-}
 
 sub listen_to_ac {
   my ($self, $ac_id)  = @_;
-  my @ac_events = ( ['FLIGHT_PARAM',  \&on_ac_msg],
-		    ['AP_STATUS',     \&on_ac_msg],
-		    ['NAV_STATUS',    \&on_ac_msg],
-		    ['CAM_STATUS',    \&on_ac_msg],
-		    ['ENGINE_STATUS', \&on_ac_msg],
-		    ['FLY_BY_WIRE',   \&on_ac_msg],
-		    ['INFRARED',      \&on_ac_msg],
-		    ['INFLIGH_CALIB', \&on_ac_msg],
-		    ['SVINFO',        \&on_sv_info],
-		  );
-  foreach my $event (@ac_events) {
-    Paparazzi::IvyProtocol::bind_msg("ground", "ground", $event->[0], 
-				     {aircraft_id => $ac_id}, [$event->[1], $self]);
+  my @ac_msgs = ( 'FLIGHT_PARAM', 'AP_STATUS', 'NAV_STATUS', 'CAM_STATUS', 'ENGINE_STATUS',
+		  'FLY_BY_WIRE', 'INFRARED', 'INFLIGH_CALIB', 'SVSINFO');
+  foreach my $msg_name (@ac_msgs) {
+    Paparazzi::IvyProtocol::bind_msg("ground", "ground", $msg_name, {aircraft_id => $ac_id}, 
+				     [\&on_ac_msg, $self]);
   }
 }