The APM‑424(V)4 is a lightweight, battery‑powered interrogator/transponder test set designed for aircraft, ground, and ship platforms, supporting Mode 1, 2, 3/A, C, 4, and S—including Elementary and Enhanced Surveillance. It also tests interrogators across Modes 1, 2, 3/A, C, 4, S, TCAS, and ETCAS, with DO‑260B‑compliant ADS‑B Out capability and optional Mode 5 upgrade. Its simple three‑button Go/No‑Go operation, self‑diagnostics, and automated MTL measurement streamline testing. Parametric results can be stored and downloaded for maintenance, and it supports TS‑4542 shipboard interrogator testing, all in a unit weighing under 11 lbs.

Join for free to read