CHAPTER Il, SECTION 3 STATION: PURPOSE: SITE: USER: 1528 High-Speed Photography George DOD-15 PARTICIPATION: 10, 11, 12, 13 and 18 CONSTRUCTION: 12-21-55/5-5-56 OCCUPANCY: 3-12-56 The work for this station consisted of re- habilitating and modifying existing CASTLE Station 1342. The station was a photo bunker of massive concrete construction, which was equipped with dehumidification units and had a steel drop blast door with an opening that led to a series of mirrors which reflected images down a chimney to cameras. Modifications in- cluded constructing a new photographic dark room, adding camera mount beams, deepening the concrete ledge in the chimney slot, providing an electric hoist, installing a 500-gallon fuel storage tank, and supplementing the air conditioning and electrical systems. The large camera shutter door was modified to eliminate the bounce at closing and also so that it could be operated from within the station. Power requirements were 10 KW, 120/208-volt, 3-phase. Minus 15 minutes, minus 1 minute, minus 15 seconds, and minus 1 second timingsignals were required. STATIONS: PURPOSE: SITES: USER: PARTICIPATION: 1540.01 and 1540.02 Cloud Tracking Cameras William and Wilma DOD-15 All Bikini and Eniwetok Events CONSTRUCTION: 2-17-56/5-10-56 These stations were 5’ x 5’x 4”-thick concrete pads for mounting User-furnished theodolites. No power or timing signals were re- STATION: PURPOSE: SITE: USER: 1580.01 Weather Radar Elmer DOD-15 PARTICIPATION: All Eniwetok Events Station 1580.01 was a 4’ x 8’ wooden plat- form mounted on wooden poles, 40 feet above the ground. A User-furnished radar unit was placed on the station. On the ground below the platform was a shelter 4’ x 1’-6%x2’ high in which a 5 HP motor generator set was housed. Power of 208-volt, 3-phase, 4-wire was provided to the motor generator. Conduit for 33 conductors was run from a weatherproof junction box on the platform to a junction box inside of Station 71. STATION: PURPOSE: SITE: USER: PARTICIPATION: CONSTRUCTION: OCCUPANCY: 1580.02 Weather Radar Nan DOD-15 All Bikini Events 4-11-56/4-11-56 4-11-56 This station was a User-furnished radar unit mounted on a new platform at the 3714’ level of the existing Station 70 tower. A Userfurnished and-installed motor generator set was installed in Station 70. Conduit for thirty-three User-furnished conductors was run from a junction box at the radar platform to Room 1 of Station 70. STATIONS: PURPOSE: SITE: 1590 and 1591 thru 1596 Mirror House (1590) and Baffles (1591 thru 1596) Yvonne quired. Station 1540.01 was first constructed in USER: DOD-15 PARTICIPATION: 24 CONSTRUCTION: 2-18-56/4-21-56 1515. Located in front of Station 1520 was a wood frame building 11’x 37’x 7 high with a concrete foundation 11’x37’x 5thick which was known as mirror house Station 1590. Inside accordance with the plan location but as this location did not provide the required clear line of sight to Station 18, it was relocated at Station STATION: PURPOSE: SITE: USER: PARTICIPATION: 1541 Fireball Photography Alice DOD-15 23 Station 1541 was a camera mount located on top of existing CASTLE Station 1343. A 2% KW. 110-volt, single-phase generator with an extension cord to the second floor was provided. Four pair of timing signal wire were terminated in the second floor room of the station. Page 2-100 this station was a plywood baffle with its end wall containing two slots which were the beginning of a series of six wooden billboard-type baffles that extended to within 1,000 feet of Station 1524 and collimated the light path from Station 24. These six baffles were Stations 1591 thru 1596. The distance in front of the Station 1590 working point for each baffle station was as follows: 1591 - 50’, 1592 - 100’, 1593 - 250’, 1594 - 500’, 1595 - 2,125’ and 1596 - 4,508’. In size, Station 1591 was 8’ x 8’, Station 1592 was 28’ x 8’, Station 1593 was 12’ x 8’, Station