From: Jeff Behr Date: 6 Jan 1999 16:24:12 Subject: [SCIGN-0496] SCIGN receiver swaps ****************************************************************************** SCIGN Electronic Mail Wed Jan 6 16:24:12 PST 1999 Message Number 0496 ****************************************************************************** Author: Jeff Behr Subject: SCIGN receiver swaps The USGS-SCIGN group has replaced 7 TurboRogue receivers with Ashtech Z-12 receivers as part of the homogenization of the SCIGN. Three receivers were swapped at, or near, day boundary 004/005 and 4 more receivers were swapped at, or near, day boundary 005/006. SPK1 - Saddle Peak 004/005 UCLP - UCLA Campus 004/005 WHC1 - Whittier College 004/005 AZU1 - Azusa High School 005/006 WLSN - Mt. Wilson 005/006 USC1 - USC Campus 005/006 TORP - Torrance Airport 005/006 The Ashtech receiver at each of these stations was connected to the Dorne Margolin choke ring antenna and cable in use at the site. None of the antennae at these sites were disturbed during this swap. Receiver information and the dates and times of the swaps are being forwarded to Paul Jamason at Scripps for update of SCIGN station logs. He will submit the updated logs to the IGS Cen- tral Bureau as soon as possible. Thanks to Dave Stowers and Marty Marcin (and any others) at JPL for coordinating the download of the TurboRogue receivers during this operation. Thank you. Aris Aspiotes, Jeff Behr, John Galetzka, Ken Hudnut, Nancy King and Shannon Van Wyk ******************************************************************* Jeff Behr SCIGN Operations Center TEL: (626) 583-7816 US Geological Survey FAX: (626) 583-7827 525 S. Wilson Ave. Pasadena, CA 91106 behr@gps.caltech.edu ******************************************************************* [Mailed From: Jeff Behr ]