ClearSat-2.0 Argos PTT electronics chassis.
ClearSat-2.0 Marker Buoy (r)
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Description
The ClearSat Argos/GPS Marker Buoy is a rugged,
ABS spherical float containing a ClearSat-2.0 Argos PTT and
Rockwell MicroTracker™ GPS (Global Positioning System) for
finding equipment floating anywhere on the ocean. Location
information is obtained through the Argos dissemination system,
or with a satellite uplink receiver when the user is within
line-of-sight of the buoy. Argos positions usually are accurate
to better than 500 meters. GPS positions (accurate to 20 meters)
are updated every 30 minutes, and can guide the user precisely to
his equipment. Buoy electronics and antennas are contained
completely within the buoy hull which floats approximately at its
equator. Although the buoy profile is quite low at the sea
surface (approximately 20 cm.), extensive use of this equipment
in oceanographic research has proven that Argos and GPS operate
with high reliability. The Marker Buoy is attached to other
equipment by means of stainless steel eyebolts at the bottom and
side. Operation is initiated by removing a magnet from the the
outside of the hull. Internal alkaline batteries power the unit
in continuous operation mode for about one year. Argos data also
reports percentage battery life remaining. The bottom half of the
hull is coated with antifouling paint. Available options include
sea surface temperature.
Technical Specifications:
| Hull |
40.6 cm. (16 in) diameter
fiberglass, 9 kg (20 lb) |
| Attachment |
2.5 cm. (1.0 in) inside
diameter eyebolts, 1 cm. thick 304 ss |
| Power Supply |
7 - 12.5 VDC, alkaline
batteries, one year |
| Duty Cycle |
User determined
transmission: continuous, 8 hours on/16 hours off, 12/12,
12/24, 24 hours on/48 hours off |
| GPS |
Year, month,day, time (+/-
.5 s); latitude and longitude +/- 0.00001 degrees |
| RF Output |
1± .3 watt into 50 ohms,
BNC |
| Temperature |
-50 to 50°C, storage |
| -5 to 45°C, operation |
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