From: Ken Hudnut Date: 29 Jun 1995 15:27:40 Subject: [SCIGN-0076] CMP9 installed Subject ****************************************************************************** SCIGN Electronic Mail Thu Jun 29 15:27:40 PDT 1995 Message Number 0076 ****************************************************************************** Author: Ken Hudnut Subject: CMP9 installed Subject: Fire Camp 9 (CMP9) installation The Fire Camp 9 (CMP9) station was installed on June 22 (DOY 173) by the USGS (Daryl Baisley assisted by summer volunteer Mark). The hardware configuration is low-power Ashtech Z-12 with an Ashtech-manufactured Dorne-Margolin choke ring antenna and 6 MB RAM (receiver and antenna owned by Los Angeles County: contact is Mr. Bob Reader, Survey Div. ) and Telebit trailblazer plus modem (on loan from USGS until the County gets theirs). Receiver S/N 00219 Software v. 1E24-1C70 Antenna S/N 11490 Antenna cable is a USGS-built 56 footer The equipment is housed inside of a fire station building. The antenna mount is a 5/8" steel pin (a modification of Mike Bevis's design) - same type we have at CHTP. At this site, the bedrock was blasted or graded off during construction of a building foundation that has had the building partly removed. Our pin is drilled into the footing of the former wall of the structure. The antenna is covered by a polycarbonate dome. It is immediately adjacent to a helicopter landing area that occasionally is used heavily, mainly during fire crises. The antenna mounting pin has a machined horizontal groove that is used as the vertical datum marker. The measured distance from the upper edge of this groove to the base of the antenna pre-amp is 9.90 centimeters. The distance from the groove to the base of the choke rings is 13.40 centimeters. Approximate Station Coordinates (from field log): 34 21.145 N ; 118 24.702 W ; 890 meters This receiver is being downloaded by the Scripps Orbit and Permanent Array Center (SOPAC) at this time, and data are available from SOPAC via anonymous ftp. A standard site information form will be filled out eventually. In the meantime, if you have questions about this or other USGS GPS sites, please feel free to write to me at: hudnut@seismo.gps.caltech.edu [Mailed From: Ken Hudnut ]