03. Feeds and Merged Feeds

This page is a quick navigator for feed topics. 
 Recommended order 
 
 Configure feed source and MLAT behavior. 
 Configure merged feeds. 
 Apply feed filter rules last. 
 
 Detailed pages: 
 
 09. Feeds Smart Ports & MLAT 
 10. Feed Filter 
 11. Merged Feeds 
 
 Common issue: selected feed still shows too much 
 Symptom: selecting a specific feed still shows aircraft from other feeds. 
 Checklist: 
 
 Verify feedId mapping in output data. 
 Verify frontend sends the correct feed parameter. 
 Compare All feeds vs single feed for the same bbox. 
 Repeat test on a second feed for the same user. 
 Remember there is a short stability window: aircraft recently seen by selected feed can remain visible briefly to reduce flicker. 
 For merged feeds, filtering remains anchored to selected feed ID (no automatic expansion to all merged sources).