Kokubo · JS2SB
Beside Tokyo Bay Kannon · 35.263294, 139.865257 ↗
Between these visits, both original towers gained a third array and three more towers were added. Each original now carries 12 + 10 + 10 elements; the three self-supporting towers carry one array each, with 12, 12 and 10 elements.
Three towers in the east group
Ryota identifies the new twelve-element arrays on the east and west self-supporting towers as U.S.-facing and asks whether they work as a horizontal pair. That pairing remains unresolved.
Another array on the ground
A further twelve-element array lies assembled below the towers. Ryota suggests it might replace the ten-element array on the lower eastern tower; its intended use is unknown.
The original two towers are 35.1 m high. Their building approvals date to April 2024 and completion inspections to November 2024.
Original building records ↗ · English · Expanded site ↗ · English
Overseas receivers · Seattle added in 2026
Hong Kong
ITU: 22.26806, 114.24611 ↗Batam, Indonesia
ITU: 1.16833, 104.13694 ↗Seattle area
ITU: 47.87917, −122.28722 ↗BR IFIC first published Hong Kong and Batam on 25 November 2025. The 28 April 2026 modification added Seattle, retaining both earlier destinations. The Japanese licence comparison also names Johor Bahru and Singapore.
The Seattle point is about 112 km from Alpha Bravo’s Port Angeles FCC site. The receive installation at the declared point has not been identified.
DRW carries the Tokyo connection
Open the network map →
Kokubo ↔ Mother Farm West ↔ Kyowa Bussan Ariake ↔ Shin-Toyosu Cube
Sora’s E-band dish on the original eastern tower points to NuVo/DRW’s Mother Farm West station. The small upper dish pictured here is the other end. Tower enters DRW’s microwave network there for onward transport to Tokyo.