[IGSSTATION-4078] DHLG: receiver and antenna swap

[David Maggert]

Author: David Maggert, UNAVCO

Dear Colleagues,

The Durmid Hill, CA (DHLG) station recently had the GPS antenna and receiver 
damaged by a lightning event.  As a result, both the antenna and receiver were 
swapped on October 10th.  No data was collected from October 4 until October 
10th.  An updated site log has been submitted to the IGSCB.  The updated 
receiver and antenna information are included below.

I apologize for the late notice on this equipment change, but I was not notified 
of this change either until recently.


3.8   Receiver Type           : ASHTECH Z-XII3
       Satellite System        : GPS
       Serial Number           : LP023011
       Firmware Version        : CC00
       Elevation Cutoff Setting: 0
       Date Installed          : 2010-10-10T22:27Z
       Date Removed            : (CCYY-MM-DDThh:mmZ)
       Temperature Stabiliz.   : (none or tolerance in degrees C)
       Additional Information  : Ligntning event damaged prior unit.

4.3   Antenna Type            : ASH701945C_M    SCIS
       Serial Number           : CR520001205
       Antenna Reference Point : BPA
       Marker->ARP Up Ecc. (m) : 0.1224
       Marker->ARP North Ecc(m): (F8.4)
       Marker->ARP East Ecc(m) : (F8.4)
       Alignment from True N   : 0
       Antenna Radome Type     : SCIS
       Radome Serial Number    :
       Antenna Cable Type      : (vendor & type number)
       Antenna Cable Length    : (m)
       Date Installed          : 2010-10-10T22:27Z
       Date Removed            : (CCYY-MM-DDThh:mmZ)
       Additional Information  : Prior unit damaged by lightning event.


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Best Regards,
David Maggert