Add new section

05-referencePages.rst

@@ -10,4 +10,5 @@ section describes the most relevant pages in full detail.
    05-referencePages/01-mainPage
    05-referencePages/02-settings
    05-referencePages/03-settingsDataConnections
+   05-referencePages/04-infoTraffic
    05-referencePages/04-about

05-referencePages/04-about.rst

@@ -1,5 +1,5 @@
-About
-=====
+Information/About
+=================
 
 The page **About Enroute Flight Navigation** shows basic information about the
 app and the system. To access the page, open the main menu and choose

05-referencePages/04-infoTraffic.rst

@@ -0,0 +1,47 @@
+Information/Traffic Data Receiver
+=================================
+
+The page **Traffic Data Receiver** provided status information on the data
+connection between **Enroute Flight Navigation** and your traffic data receiver.
+If an active data connection exists, the page also lists all the traffic
+currently observed.
+
+
+Connection Status
+-----------------
+
+To ensure reliable operation, traffic receivers emit "heartbeat messages" at
+frequent intervals. The text field "Connection Status" explains if heartbeat
+messages are received through any of the configured data channels. If yes, the
+field shows the data connection currently used and lists the types of data
+presently received.
+
+
+Traffic Data Receiver Status
+----------------------------
+
+If heartbeat messages are received, this field shows status messages reported by
+the traffic data receiver, including results of internal self-tests of the
+traffic data receiver hardware. If no heartbeat messages are received, this
+field is invisible.
+
+
+Traffic/Currently No Traffic
+----------------------------
+
+If heartbeat messages are received, this field lists all the traffic reported by
+the traffic data receiver, sorted in order of importance. If no heartbeat
+messages are received, this field is not shown.
+
+Traffic opponents are classified as "Relevant Traffic" and "Irrelevant Traffic".
+Traffic is considered relevant if the vertical distance to the traffic opponent
+is less than 1,500 m and the horizontal distance is less than 20 NM. Only
+relevant traffic is shown in the moving map.
+
+
+Help
+----
+
+If no heartbeat is received from any traffic receiver, two buttons "Connect to a
+traffic receiver" and "Connect to a flight simulator" will become visible. A
+click on any of these buttons will open the appropriate page of the manual.