MODULATORS FOR PROVIDING MESSAGE AND VIDEO MODULATION FOR SATELLITE SYSTEMS; FREQUENCY-UP CONVERTERS FOR CONVERTING MODULATED INTERMEDIATE FREQUENCY TO FINAL CARRIER FREQUENCY BEFORE THE SIGNAL IS APPLIED TO TRANSMIT POWER AMPLIFIERS; DEMODULATORS FOR ACCEPTING INTERMEDIATE RADIO FREQUENCY AND CHANGING THIS BACK TO ORIGINAL INFORMATION SIGNALS THAT ARE TRANSMITTED FROM A DISTANT STATION AND WHICH INCLUDE DEMODULATE BASED BAND CARRIERS; FREQUENCY DOWN CONVERTERS FOR RECEIVING RADIO FREQUENCY SIGNALS FROM ANTENNAS, AMPLIFYING AND CONVERTING THIS SIGNAL TO AN INTERMEDIATE RADIO FREQUENCY WHICH CAN BE FURTHER PROCESSED; TRANSMIT INTERFACE UNITS (TIU'S) AND RECEIVED INTERFACE UNITS (RIU'S) FOR PROVIDING MICROPROCESSORS CONTROLLED, "SMART" INTERFACE FOR UPLINK AND DOWNLINK EQUIPMENT; PROGRAM AUDIO MODULATORS FOR PROVIDING AUDIO SUB-CHARACTER MODULATION OF TELEVISION UPLINKS; TRANSMIT REMOTE MONITORS (TRM) FOR PROVIDING REMOTE STATUS FOR ALARM MONITORING FOR UPLINKS; AMPLITUDE/GROUP DELAY EQUALIZERS FOR PROVIDING AMPLITUDE AND GROUP DELAY COMPENSATION FOR EARTH STATION UPLINK EQUIPMENT, CABLES AND SATELLITE TRANSPONDERS

ARCHITECTURAL AND CONSTRUCTION SERVICES FOR INSTALLING SATELLITE TELECOMMUNICATIONS NETWORKS: NARROWBAND GROUND COMMUNICATION SUB-SYSTEMS; TIU (TRANSMIT INTERFACE UNIT) DRAWER FOR PROVIDING AUTOMATIC BACK-UP SWITCHING FOR SATELLITE TRANSMIT SYSTEMS AND UPLINK STATIONS AND IMPROVING EXISTING UPLINK STATION INSTALLATIONS

TRAINING OF PERSONNEL FOR SATELLITE SYSTEMS USED FOR PROCESSING VOICE, VIDEO, DATA OR FACSIMILE, SINGLY OR IN COMBINATION, INCORPORATION ANALOG OR DIGITAL TRANSMISSION DESIGNING, ENGINEERING, PRODUCING, ASSEMBLING, INSTALLING, TESTING AND INTEGRATING COMMUNICATION SYSTEMS, SUB-SYSTEMS AN

D EQUIPMENT FOR SATELLITE TELECOMMUNICATIONS STATIONS AND NETWORKS CONSISTING OF EARTH STATIONS, AS WELL AS COMPLETING THE LINKAGE OF THESE STATIONS; DESIGNING TRANSMIT NARROWBAND GROUND COMMUNICATION SUB-STATIONS, BROAD BAND UPLINK TRANSMIT SYSTEMS FOR MONITORING EARTH STATION STATUS; AND MODIFYING EXISTING SATELLITE ANTENNAS AND INSTALLING GROUND CONTROL EQUIPMENT