A newsletter for the customers of
Campbell Scientific, Inc.
March, 2001 Volume 12, Issue 1
www.campbellsci.com
On November 3, 2000, our SAT HDR
GOES transmitter became the only GOES
satellite transmitter certified by NESDIS
to comply with the High Data Rate
(HDR) specifications. The transmitter
supports both low and high data transmis-
sion rates including 100, 300, and 1200
bps. The SAT HDR GOES is manufac-
tured for Campbell Scientific by Seimac
Ltd., Dartmouth, Nova Scotia, Canada.
Satellite transmitters are well suited for
remote data collection. The SAT HDR
GOES transmitter uses the GOES satellite
system to provide one-way communica-
tions from a Data Collection Platform
(DCP) to a receiving station. GOES
satellites maintain equatorial orbits that
coincide with the Earth's rotation allowing
each satellite to remain fixed above a
specific location. Federal, state, or local
government agencies in the US, or users
sponsored by one of those agencies, may
use GOES.
Setting up the SAT HDR GOES trans-
mitter is easily accomplished using your
computer and the Windows-based soft-
ware included with the transmitter. The
transmitter stores data in independent
16 Kbyte buffers for self-timed or random
transmission; transmission lengths from
one to 120 seconds are supported. Short
transmission lengths also enable multiple
stations to use the same NESDIS-assigned
window.
NESDIS certifies High Data Rate transmitter
Price lists for 2001 now available; additional information also accessible
SAT HDR GOES becomes
the only one of its kind
A GPS receiver and antenna are
included to acquire time and position
data. Clock accuracy is especially impor-
tant for satellite telemetry, and the GPS
receiver allows automatic GPS correction
of clock and oscillator drift, increasing the
accuracy of the transmitter's clock.
Diagnostic, transmission status, and
self-test information can be sampled by
the datalogger and transmitted over the
GOES system as part of the data stream.
Information that can be sampled includes:
• Power supply voltage under
transmit load
• Location (latitude and longitude)
• Bytes in buffers
• Time until next self-timed or
random transmission
• Forward and reflected power
• Transmit time (GMT)
• Message length
• Watch dog dropouts
• Power supply dropouts
Typically, a DCP includes the transmit-
ter, Campbell Scientific datalogger, Yagi
antenna, enclosure, and a power supply
that often consists of Campbell
Scientific's BP12 or BP24 battery, CH12R
Charger/Regulator, and MSX10 solar
panel. The SAT HDR GOES is compati-
ble with our CR510, CR10X, and CR23X
dataloggers. !!
The SAT HDR
GOES from
Campbell
Scientific
supports data
transmission
rates of 100,
300, and
1200 bps.
Our US, International, and systems
price lists for the year 2001 are avail-
able; pricing became effective 1 January
2001. You can receive any of our price
lists via email, fax, or mail by contact-
ing one of our applications engineers.
While most prices did not change,
some products have either slightly
increased or decreased in price due to
changes in our parts or manufacturing
costs.
If you need additional information,
look for this symbol ! at the end of an
article. Then, to receive literature
through the mail, please make your
selections on the enclosed customer
response form.
The ! symbol indicates specific
information that can be found on the
Web at www.campbellsci.com and
its subpages.
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