Wiederholer
Wiederholer is a German noun meaning “repeaters” or “one who repeats,” derived from the verb wiederholen. Depending on context, the term may refer to devices that receive and retransmit signals, or to people who repeat something.
In technology and communications, Wiederholer denotes equipment that regenerates and rebroadcasts signals to extend transmission distance
In education, a Wiederholer is a student who repeats a class, grade, or examination because of insufficient
Other uses include media and broadcasting, where a Wiederholer can refer to a program that is broadcast