diff --git a/csdr/module/toolbox.py b/csdr/module/toolbox.py
index 998956be..a1322a03 100644
--- a/csdr/module/toolbox.py
+++ b/csdr/module/toolbox.py
@@ -84,7 +84,7 @@ class Dump1090Module(ExecModule):
         cmd = [
             "dump1090", "--ifile", "-", "--iformat", "SC16",
             "--lat", str(lat), "--lon", str(lon),
-            "--metric"
+            "--modeac", "--metric", "--write-json", "/tmp"
         ]
         if rawOutput:
             cmd += [ "--raw" ]
diff --git a/owrx/repeaters.py b/owrx/repeaters.py
index 1ee84683..98843103 100644
--- a/owrx/repeaters.py
+++ b/owrx/repeaters.py
@@ -91,20 +91,22 @@ class Repeaters(object):
         file = self._getCachedDatabaseFile()
         ts   = os.path.getmtime(file) if os.path.isfile(file) else 0
 
-        with self.lock:
-            # If cached database is stale...
-            if time.time() - ts >= self.refreshPeriod:
-                # Load EIBI database file from the web
-                repeaters = self.loadFromWeb()
-                if repeaters:
-                    # Save parsed data into a file
-                    self.saveRepeaters(file, repeaters)
-                    # Update current schedule
+        # If cached database is stale...
+        if time.time() - ts >= self.refreshPeriod:
+            # Load EIBI database file from the web
+            repeaters = self.loadFromWeb()
+            if repeaters:
+                # Save parsed data into a file
+                self.saveRepeaters(file, repeaters)
+                # Update current schedule
+                with self.lock:
                     self.repeaters = repeaters
 
-            # If no current databse, load it from cached file
-            if not self.repeaters:
-                self.repeaters = self.loadRepeaters(file)
+        # If no current databse, load it from cached file
+        if not self.repeaters:
+            repeaters = self.loadRepeaters(file)
+            with self.lock:
+                self.repeaters = repeaters
 
     #
     # Save database to a given JSON file.