LTR 400

The LTR 400 is an L-band lightweight transponder designed for military and civil operations across air, land, and sea platforms. It supports civil modes 3A/C, Mode S (Enhanced), and ADS-B, alongside military modes 1, 2, 3, 4, and 5 L1 + L2. The transponder complies with ICAO Annex 10 Volume IV, STANAG 4193 Part I-VI, Edition 3, and DoD AIMS 03-1000B Amdt 1. Control and monitoring can be achieved via a dedicated Control And Display Unit (CADU) or through integration with a compliant avionics system utilizing cockpit multi-function displays. The CADU, as part of the Identification Friend or Foe (IFF) and Mode S on-board system, can be installed in an aircraft cockpit or a naval cabinet system.

radartutorial.eu: https://www.radartutorial.eu/19.kartei/14.ssr/karte028.en.html