Signal Engineering's DirectLink is a Receiver/Demodulator component within a GOES Direct Readout Ground Station (DRGS).
The DirectLink Receiver/Demodulator is designed to process signals at all three
GOES DCS baud rates 100, 300 and 1200 bits per second. Multiple channels are processed
simultaneously including the Pilot tone which is used as a reference in determining the
uplink EIRP of each DCP transmission and the DCPs operating frequency accuracy.
Currently, Signal Engineering provides a 4-channel, 6-channel and 16-channel
DirectLink Receiver/Demodulator. Two additional channels are
processed in each case to monitor the Primary and Secondary Pilot tone signals.
Each channel's baud rate can be independently selected allowing the system to be
tailored by the user for their specific networks of DCPs.
The DirectLink Receiver allows you to support the older 100 BPS DCPs
simultaneously as you migrate to the Higher Data Rate DCPs. Multiple DirectLink Receivers
can operate in parallel to expand the number of channels the user wishes to
monitor. Each DirectLink Receiver is totally independent of all the others
possessing its own digitizer and its own pilot tone tracker. This adds a great
deal of redundancy to multiple receiver systems.
Output from the DirectLink Receiver/Demodulator consists of time stamped
data accompanied with quality measurements on each received message, DCP identification
codes, on-line built-in-test diagnostic information and other useful data which can be
used by the operator to access the health of individual DCP stations.
Key Features of the Signal Engineering GOES DirectLink Receiver/Demodulator
Supports NESDIS HDR 100, 300 and 1200 BPS transmissions from any
NESDIS certified transmitter
Each channel’s data rate is independently assigned by the user
Channels can be reassigned in a dynamic frequency hopping manner
Automatic Dual Pilot Tone Tracking
Backup Pilot Tone serves as reference if Primary Pilot goes down
Automatic Signal Gain Control
Inherent redundancy in Multiple Receiver systems
Data output via an RS-232 interface or a TCP/IP (Ethernet) interface. Data
and Alerts on TCP/IP interface in accordance with DAMSNT specification
Enhanced quality monitoring for all received messages
Embedded DSP operating system which is free of regular OS updates
Available in Desk top (7” x 9” x 2.5”) or 19-inch rack
(2xRU) mountable configurations
For detailed technical information, please contact us.