09. Feeds: Smart Ports and MLAT

1. Feed basics

In Feeds, define raw data sources (Beast, BaseStation).

For each feed, configure:

1. Address and Port
2. Format
3. ConnectionType
4. Enabled
5. Visible in Radar Dropdown
6. optional Receiver Location

After save:

1. verify connection status,
2. verify message counters increase,
3. verify AircraftList.json is non-empty.

2. Smart profile ports

Known smart profiles:

1. 30003 -> [ADS-B] BaseStation/Text
2. 30005 -> [ADS-B] Beast/Binary
3. 30105 -> [MLAT] Beast/Binary
4. 30106 -> [MLAT] BaseStation/Text

When one of these ports is entered, feed editor pre-applies matching format/MLAT defaults.

3. MLAT options

Feed-level MLAT controls:

1. MLAT Feed forces all positions from feed to be treated as MLAT-derived.
2. Use MLAT Feed only for dedicated MLAT streams without reliable MLAT marker tagging.
3. For mixed ADS-B + MLAT streams, keep MLAT Feed disabled and rely on per-message MLAT detection.
4. Assume DF18 CF1 = ICAO is experimental and should be enabled only for known-compatible sources.

4. Quick verification

1. open aircraft detail panel,
2. check Position Source (MLAT position or ADS-B position),
3. compare behavior before and after MLAT option changes.

5. UI visibility note

Visible in Radar Dropdown controls whether a feed appears in frontend All feeds / feed selector.