Video of NHK Transmitter Site.
Here’s an interesting video of a NHK AM relay site.  The talking and subtitles are in Japanese but you can still get a good idea of what’s there.

Credit Fumiaki Minematsu, who posted it on the DXing.info Facebook group.  His comment: “This is an NHK radio relay sration in Murasumi, Miyazaki(NHK1 540kHz 5kW ,NHK2 1467kHz 1kW ) . You can watch the facilities in the station. This must be very rare for MW DXers to see them.”

Bruce Portzer Dec 20   #23658 , IRCA iog via WOR iog (2021-12-21)