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In cooperation with the NGS Cooperative
CORS program.
LINKS:
Cooperative CORS
Northwest Region CORS
Stations
PRSN
Pierce Co.
Control database
Pierce CORS FAQ
Solar Weather information
GPS
Calendar
Return to
Index
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Frequently Asked Questions:
Can I receive RTK corrections even though I
do not use Leica equipment?
- Yes. Because our base stations have been
configured to transmit using the public domain CMR format any RTK receiver
which can be configured to receive the CMR message.
What communications device do I need to use
to receive the RTK message?
- Currently we are transmitting the CMR message
over cell phones. Please contact Pierce County Survey Section office to
receive specific assistance.
How do I download static files for
post-processing?
- Follow the RINEX DATA FILES link found on the
individual site pages. The data directory structure is listed by year, day of
year, then UT hour of day.
What if the static file is not posted on the
webpage for me to download?
- Try again a little later, the data download may
not have completed yet due to traffic on the network. The static files are
downloaded to the server at the top of each hour, typically the download takes
approximately five minutes to complete. If the communications network has been
busy, these static files may be behind schedule. In these cases, downloads
will occur as soon as possible, in the order in which they were logged.
What is happening when I get a voicemail
message on the cell phone when trying to connect with a base station for RTK?
- The RTK message should begin within the first
4-5 rings. If you get a voicemail message it means the
connection has not been successful due to the wireless communications network traffic.
Continue trying until a successful connection is accomplished.
What geodetic reference system are the base station
coordinates in?
- The Pierce County CORS are defined on the
NAD83(HARN91) realization in accordance with WAC 332-130-060.
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