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CTF Earth Station Family
The Commercial Terminal Family (CTF 2001) offers flexibility within the context
of a wide set of options
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The Commercial Terminal Family (CTF 2001) offers flexibility within the context
of a wide set of options available with the standard design. This terminal
product line provides antenna sizes from 1.2 to 9.3 meters, with High-Power
Amplifiers (HPA) from 16 to 400 Watts in C-band, and 300 Watts in Ku-band.
Non-redundant and redundant transceiver designs minimize space requirements and
cost. The industry standard 70 MHz Intermediate Frequency interface provides
flexibility in choice of baseband modulation equipment. Both SCPC and TDMA
baseband equipment options are available.
Other options, such as uplink power control, deicing, tracking, test translator,
and AxxSys™ Earth Station Management Systems are available as part of the
standard product line.
Features:
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Antennas are Intelsat/Panamsat/Asiasat/Eutelsat/Orion/FCC compliant
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G/T available from 19 to 31 dB/K at C-band
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G/T available from 19 to 37 dB/K at Ku-band
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EIRP available from 53 to 76 dBw at C-band
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EIRP available from 54 to 76 dBw at Ku-band
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Transceiver design supports independent receive/transmit tuning
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RS485 Serial bus for earth station management
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Test Loop Translation (option)
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Ease of use through Advanced AxxSys™
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Earth Station Management System
Application Information:
The Globecomm Systems Commercial Terminal Family (CTF 2001) is designed to
provide reliable service in the most demanding applications of satellite
communications data and voice networks. These terminals fall into the following
general categories:
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SCPC voice/data network nodes
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Digital video uplink terminals
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TDMA voice/data network nodes
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Intelsat IBS/IDR service
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VSAT hub terminals
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Eutelsat SMS service
The baseline antennas are provided with manually positioned mounts. Options for
Jog Control, and Advanced Step Track Antenna Control Units are available. The
Advanced Step Track Control system tracks satellites within up to 10 degrees
inclination.
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Supports 9.6 KB to 2.048 Mbps links
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Uplink power control for Ku-band has beacon and loopback modes
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Non-redundant/redundant options
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Reliability through environmental stress screening of critical components
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Redundancy switching - less than 500 msec
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Lightening protection - all interfaces
Up Front Engineering:
Globecomm Systems believes in simulation of link performance up front, in order
to ensure that the station will meet or exceed all requirements. We provide
application engineering services to our customers to assure that the selected
earth terminal is optimum for the specific customer requirements and satellite
system.
Ease of Use:
Globecomm Systems applies the latest information technology to reduce the
operating complexity and cost of Gateway Earth stations. Features include
x-windows or Microsoft NT windows graphical user interface for ease of operator
interaction with the system, and relational data base management system options
for integration of maintenance and operations functions. Our AxxSys™ Earth
Station Management System provides the ultimate in configurability by the user,
based on software models of the earth station devices. This approach allows new
systems to be generated quickly and cost effectively and allows upgrades to be
handled without software development. Integration of maintenance and operations
functions allows the user to minimize paperwork, manual processing of data, and
consequently, the manpower required to operate a major gateway facility.
AxxSys™ Earth Station Management System
The AxxSys™ Earth Station Management System consists of a computer workstation
which interfaces with the RF equipment (and other system related hardware). The
system constantly monitors the RF equipment for faults and, where applicable,
provides the ability to control these items through their remote interfaces.
The workstation can also be connected to another workstation which acts as an
interface to a remote operator.
A key feature of the Globecomm Systems AxxSys™ Earth Station Management System
is the ability to remotely log into the system to update software, or to
perform software maintenance. This means our customers can obtain the latest
version of software, or request software maintenance, without a Globecomm
Systems representative on site, thereby saving time and money for everyone. The
workstation acts as a command console which enables constant monitoring, remote
operator control, event logging, and system configuration. It is provided with
a high-resolution color graphics monitor for displaying equipment status, as
well as a printer for making hard copy of activity logs and reports. The
software permits different security levels of operator interaction with the
equipment. Monitor and Control of the Gateway Earth Station is possible from a
remote location, using a second workstation connected to the local earth
station control center computer.
The monitoring functions associated with the AxxSys™ Earth Station Management
System include uplink/downlink frequency, HPA forward power, operational
condition (online/standby), readiness condition (normal/alarm), and other
system status indications for all uplink/downlink equipment. Control functions
include HPA beam on/off, uplink/downlink frequency, and selection of online
uplink/downlink equipment.
Earth station management software options include Operations Level and
Enterprise Level. The Operations Level includes a Training Mode, automatically
generated Trouble Reports, Outage Reports, Equipment History Logs, Equipment
Inventory Reports, etc. The Enterprise Level integrates business functions like
scheduling of traffic feeds, billing, payroll, accounting, etc. These options
allow the earth station operator to reduce the cost of Operations and
Maintenance by leveraging the capability of modern Relational Data Base
Management System technology. This technology allows functions which previously
required manual labor to be consolidated and automated.
Uplink System:
The uplink system consists of an up converter, a High-Power Amplifier (HPA)
subsystem, and an optional uplink power control subsystem. The uplink subsystem
is supplied in either non-redundant or redundant configuration. The IF input
level to the uplink is adjustable in 0.125 dB steps over a 20 dB range. The 1:1
redundancy implementation allows for automatic replacement of a single failed
uplink. Each uplink is a synthesized dual conversion unit capable of
automatically tuning to a locally or remotely selected frequency. The RF output
of each uplink is monitored through a coupler.
The HPA subsystem is comprised of either a Solid-state or TWT High-Power
Amplifier, with power output determined by the EIRP option selected on order.
The online HPA feeds a waveguide transmission line which is connected to the
antenna OMT. The output of the standby HPA is connected to a dummy load. The
Indoor Unit provides interfaces to the optional Uplink Power Control Unit,
optional AxxSys™ Earth Station Management System, and optional satellite modem
subsystems.
Downlink System:
The downlink system consists of the Low-Noise Amplifier (LNA) and down converter
subsystems. The RF signals from the receive port of the antenna OMT are fed
through a Transmit Reject Filter (TRF) to the Low-Noise Amplifier whose outputs
are connected to the down converter subsystem.
The LNA is a GaAs FET amplifier with a noise temperature consistent with the G/T
for the antenna/frequency band selected at order. The redundant LNA subsystem
(option) is mounted on a plate with a transmit reject filter and input
waveguide switches. The plate is mechanically mounted inside the antenna hub so
it rotates with feed polarization adjustment for linear polarization
configurations, and is fixed for circular polarization configurations.
The downlink subsystem is supplied in a non-redundant or redundant
configuration. The IF output of each downlink is available for signal
monitoring. The IF output level of each down converter is adjustable in 0.125
dB steps over a 20 dB range. 1:1 redundancy implementation allows for automatic
replacement of a failed downlink. Each downlink is a synthesized dual
conversion unit capable of automatically tuning in 1 MHz steps to a locally or
remotely selected frequency.
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