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更新日:2023年5月8日

日本遺産ロゴal INationmportant Cultural Property Transmission Room

 

The transmission room is a reinforced concrete building which accommodates the equipment for converting signals to high-power signals and transmit them to a transmission tower. The size of the building is 41 meter (width) x 13.2 meter (height) and 23.3 m (depth). As shown in Figure ①, the inside of the building is divided into a transmission/reception room, a rectifier room, a rechargeable battery room, a power supply room, and a storage room. As shown in Photo ①, a high-frequency generator for long wave radio signals was placed, however, it had presumably been removed by 1942. Photo ② shows the current state of the power supply room in which transmission devices used to be placed.

When the construction work completed, the front side of the transmission room looked as shown in Figure ②, and Photo ③ shows the newly-built transmission room at that time. The stairways attached to the building indicate that the entrance was located on the second floor. Photo ④, taken during the construction period, shows the roof had an arcade structure. The roof was covered with earth and sand so as to make it explosive structure.

The present place, where a guide plate is posted, is what used to be the 2nd floor of the building. The windows can be seen ahead are those installed on the 2nd floor. The transmission room was filled with earth and sand up to the 2nd floor level intentionally as load relieving purpose and water intrusion protection purpose.

旧佐世保無線電信所電信室図1

Figure ① 

旧佐世保無線電信所電信室図2

Figure ②

 

 

旧佐世保無線電信所電信室写真1 

Photo ①

 

旧佐世保無線電信所電信室写真2

Photo ②

 

旧佐世保無線電信所電信室写真3 

Photo ③

 

旧佐世保無線電信所電信室写真4

Photo ④

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