CHAPTER JI, SECTION 3 STATIONS: J-172.01, .02 .03 PURPOSE: SITE: Johnston Island, Sand Island PARTICIPATION: J-40, J-41 USER: DOD; BRL DESIGN PSI: PURPOSE: Pressure Time Measurement CONSTRUCTION: 5-8-58/5-15-58 PARTICIPATION: J-40, J-41 DESIGN PSI: None MSQ and M33 Rada Installation None This station consisted of User-furnished trailers and generators located on a cleared and level area, 150x60 feet, near the beach. CONSTRUCTION: 6-2-58 6-20-58 STATION: J-600.02 Station J-172.03 consisted of a User-furnished ground gage on Johnston Island. Sta- SITE: Sand Island (Johnson Island) Island each consisted of a User-furnished pipe tower 10 feet high which was embedded in a concrete footing 6 feet deep. USER: DOD/AFCRC PURPOSE: Tonospheric Recorder and tions J-172.01, Johnston Island, and .02 on Sand STATION: J-260 SITE: Johnston Island USER: DOD:NRL PURPOSE: Telemetering Receiving Station PARTICIPATION: J-40, J-41 DESIGN PSI: 1.5 psi Transmitter PARTICIPATION: J-40, J-41 DESIGN PSI: None CONSTRUCTION: 6-13-58/6-13-58 A User-furnished trailer and an antenna array, placed along the diagonals of an area 60x50 feet comprised this station. A 35-foot wood pole set 5 feet in concrete provided one corner of the antenna wire support. A 6-foot- high pole set 2 feet in concrete was located in CONSTRUCTION: 4-24-58/7-7-58 each of two corners while the trailer provided This station was located in the Station J-6002 Equipment Room and in Room II. Special requirements were 12-kva powerservice and extension of the cable duct on the floor. the top of the 35-foot pole to each of the other STATION: J-261 SITE: Johnston Island USER: DOD/NRL PURPOSE: Electronic and Shop Trailers PARTICIPATION: J-40, J-41 DESIGN PSI: None CONSTRUCTION: 4-29-58/6-27-58 The trailer-loading dock at this station was about 45x35 feet in plan, and T-shaped to receive two trailers. The dock was constructed of timber and provided with an access ramp 13 feet long on one end. Two 16x32-foot tents were constructed, and power was supplied to the tents and two trailer receptacles. STATION: J-540 SITE: Sand [sland (Johnston USER: Page 130 the fourth corner. Antenna wire extended from three corners and from the trailer to the two shorter poles. STATION: J-611.01 SITE: Johston Island USER: DOD/AFCRC PURPOSE: Absorption of Cosmic Noise Signals PARTICIPATION: J-40, J-41 DESIGN PSI: None CONSTRUCTION: 5-15-58/6-2-58 This station consisted of a User-furnished shelter and antenna. Scientific line power of 5-kw was provided to thesite. STATION: J-612 SITE: Johnston Island USER: DOD/ESL PURPOSE: Rocket Launcher PARTICIPATION: J-40, J-41 Island) DESIGN PSI: DOD/WADC/NASWF CONSTRUCTION: 5-12-58/5-29-58 None