Interesting reading...
https://www.history.navy.mil/content/history/nhhc/research/library/online-reading-room/title-list-alphabetically/s/ship-to-shore-movement0.html#communications

Various radio networks using TBY/SCR-511 and TBX/SCR-284 are detailed at
https://www.history.navy.mil/content/history/nhhc/research/library/online-reading-room/title-list-alphabetically/s/ship-to-shore-movement0.html#debarkation-and-assault

Nick England K4NYW
www.navy-radio.com