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Advanced Amplifiers AA-1218G-3.5KW-PT, User Manual

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Summary of Contents for AA-1218G-3.5KW-PT

Page 1: ...User Manual AA 1218G 3 5KW PT R F MICROWAVE AMPLIFIER SYSTEM Advanced Amplifiers 10401 Roselle Street San Diego CA 92121 Telephone 808 404 2832...

Page 2: ...ose of the Equipment 3 General System Introduction 4 Installation 4 TWTA connections 4 Front Panel Display 6 Operation 9 Remote Operation 12 Explanations of analog values 12 Explanation of Faults and...

Page 3: ...AC power Do Not operate this equipment without both RF input and RF output being properly terminated Do Not bypass or attempt to modify the operation of the Safety Interlock Switch Without covers in p...

Page 4: ...onfigurations specified at time of manufacture Installation Locate amplifier in such a manner that adequate cool air is available to the fan inlet on the front of the unit Do not restrict space in the...

Page 5: ...ses RF input TWT Input for user supplied RF RF output Amplified TWT RF output Remote communications Connection for user specified external communications Primary power User specified 120 or 240VAC 50...

Page 6: ...rents and voltages stabilize In this state the status bar shows how much time is left to finish the warm up After the warm up time finishes the unit enters STANDBY In STANDBY and OPERATE the status ar...

Page 7: ...me the unit has been in powered on Total time in operate Total Time the unit has been in OPERATE high voltages on Total time main uptime The main control board is powered whenever the prime power inpu...

Page 8: ...inL is undefined while PinD shows 100 The values shown correspond to pulses which will modulate the amplifier s output when the amplifier is in OPERATE So the values represent the output of the intern...

Page 9: ...fier s manufacturer System tab picture 12 shows general information about the amplifier and selected technical data The following information is available Model Series Rated power output Min and max s...

Page 10: ...w placed in OPERATE Operate Press the OPERATE button to place the TWTA in OPERATE state or send the OPERATE command from the remote computer The OPERATE button is illuminated and the STANDBY button is...

Page 11: ...he TWTA in RESET if the amplifier is in WARMUP STANDBY or OPERATE Heater Voltage and Current Drive Voltage Collector Voltage and Current Body Voltage and Cathode Current are all directly monitored by...

Page 12: ...r will enter the FLASHING RESET mode again Gassy TWT If the TWTA has been inactive for several months the TWT may build up gasses This allows the TWT to arc internally and cause repeated TWTA faults T...

Page 13: ...drive pulses interspersed with the negative bias voltage The amount of reduction is directly proportional to the duty cycle of the pulses applied Bias V Direct measurement of Bias Voltage Not present...

Page 14: ...and Flags Temperature Fan TWT temperature has exceeded acceptable levels or a cooling fan is outside its current range Causes a fault Interlock The enclosure cover has been removed or loosened Causes...

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