The notification displays in chat when someone calls in a drop and when its dropped but not when someone has looted it. Tested with direct drop and normal supply signal drop.
"Notification Settings": {
"Maximum distance in meters to get notified about landed Drop": -1.0,
"Maximum distance in meters to get notified about looted Drop": -1.0,
"Notify a player about incoming Drop to his location": false,
"Notify a player about spawned Drop at his location": false,
"Notify a player about Space Delivery Drop at his location": false,
"Notify admins per chat about player who has thrown SupplySignal": false,
"Notify console at Drop by SupplySignal": false,
"Notify console at timed-regular Drop": false,
"Notify console when a Drop is being looted": false,
"Notify console when Drop is landed": true,
"Notify console when Drop is spawned": false,
"Notify console when Drop landed/spawned only at the first": false,
"Notify players at custom/event Drop": false,
"Notify players at custom/event Drop including Coords": false,
"Notify players at custom/event Drop including Grid Area": false,
"Notify players at Drop by SupplySignal": false,
"Notify players at Drop by SupplySignal including Coords": false,
"Notify players at Drop by SupplySignal including Grid Area": true,
"Notify players at Massdrop": true,
"Notify players at Random/Timed Drop": false,
"Notify players at Random/Timed Drop including Coords": false,
"Notify players at Random/Timed Drop including Grid Area": false,
"Notify players when a Drop is being looted": true,
"Notify players when a Drop is being looted including coords": false,
"Notify players when a Drop is being looted including Grid Area": true,
"Notify players when Drop is landed about distance": false,
"Notify Players who has thrown a SupplySignal": false,
"Notify Players who has thrown a SupplySignal including coords": false,
"Notify Players who has thrown a SupplySignal including Grid Area": true,
"Use GUI Announcements for any Drop notification": false