Mode Ten Ninety
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Field notes

The MODE 1090 journal.

Practical guides to observing aircraft and understanding the flight data shown in MODE 1090.

  1. MODE1090 Collection on iPhone, with cards for the Airbus A320neo and A330-200.

    Guides

    How to keep a plane spotting log with MODE1090

    How to save aircraft sightings in MODE1090, add notes and check which aircraft you have seen before.
    5 min read
  2. MODE1090 flight map on an iPhone beside a nearby aircraft list showing type, callsign and registration.

    Basics

    Callsign, flight number and aircraft registration explained

    Is a callsign the same as a flight number? Learn what each identifier tells you and which one to use when looking for a flight or a particular aircraft.
    5 min read
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