JOHNSTON ATOLL F&SNO. 04012 USER COMMUNICATIONS TITLE : Rehabilitation of USAF-DCA HF Radio Trunk STRUCTURE.FACILITY NO. JTF SCIENTIFIC STATION NO. None Bop None FOD FUNDING AGENCY ($000) SSD PRE-GO Prior Cost | TOTAL ENGR PROC CONST TOTAL FURN 9.2 150.7 159.9 9.2 150.7 159.9 COMPLETED DESCRIPTION The existing USAF-DCA HF long haul radio trunk to Hawaii was rehabilitated in 1965 and a new trunk to McClellan AFB, California was added. The old system was replaced with a new, more efficient antenna system. An antenna multigraph system provides pilot frequency operation by simultaneously utilizing two transmit antennas for four transmitters. The low power transmitter equipment was replaced with new higher power transmitters and new test equipment. DRAWINGS: 91-077-C1 thru C3 91-077-S2, S4, S6 4-5 91-077-W3 thru W6 VOLI