Carrier communication economical for long distances

CARRIER-CURRENT telephony supplies most of the communication needs for the Arkansas-Louisiana-Mississippi interconnected system comprising a total of approximately 1,800 mi. of 110-kv. lines. Operating supervision for the entire interconnected network is centered in the load-dispatcher's office at the Woodward switching station near Pine Bluff (Ark.) except for the southern portion which is handled from the Jackson (Miss.) office. (See Fig. 8.)