Subject: [SCIGN-0076] CMP9 installed Subject
From: Ken Hudnut
Date: 29 Jun 1995 15:27:40

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SCIGN Electronic Mail    Thu Jun 29 15:27:40 PDT 1995      Message Number 0076
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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:
 
        [email-masked]

[Mailed From: Ken Hudnut <[email-masked]>]