HWU transmitter, Radio transmitter in France
The HWU transmitter is an essential facility for submarine communications.
Constructed in the early 20th century, it serves the French Navy's communication needs.
The transmitter is named after Henri-Gustave Delvigne, a notable military engineer.
Located in Rosnay, it supports long-range and secure military communications.
One of the few transmitters worldwide to use very low frequency transmissions.
Location: Rosnay
Source: Wikimedia