Manual Do Utilizadoríndice analíticoGeneral Information1Introduction1Performance Specifications2Theory of Operation5General5Jumper Functions and Standard Configuration7Test Points8Transmitter Programming10Transmitter Assembly and Adjustment13Repair Note13Recommended Test Equipment List14Transmitter Assembly and Adjustment14Frequency Change14Digital Signal Processor Board Alignment15Repeater System Configuration19Digital Repeater19Repeater System Troubleshooting20Illustrations and Schematics23P25 Digital Transmitter Front Panel24P25 Digital Transmitter Block Diagram25P25 Digital Transmitter Main Board Component Layout - Bottom26P25 Digital Transmitter Main Board Component Layout - Top27P25 Digital Transmitter Schematic Diagram28P25 Adapter Board Component Layout29P25 Adapter Board Schematic Diagram29Parts Lists31P25 Digital Transmitter Electrical Parts List31P25 Digital Transmitter Mechanical Parts List34P25 Adapter Board Parts List35Revision History37General Information5Introduction5Performance Specifications6Theory of Operation7Amplifier Operation7Power Requirements8VHF Transmitter Amplifier Current Consumption8RF Circuitry8VHF Transmitter Amplifier Lowpass Filter8Power Control Circuitry8Power Sensing Circuitry8Output Power Sense9VSWR Sense9VSWR Overload9VHF Transmitter Amplifier Alignment11Repair Note11Recommended Test Equipment List12General12Standard Factory Settings and Jumper Configuration13VHF Transmitter Amplifier Alignment13VHF Transmitter Amplifier Adjustment13General Set-Up14Output Power Alarm (Forward Power)14Output Power15Antenna VSWR Alarm (Reverse Power)15Antenna VSWR Overload16Procedure Verification16Illustrations and Schematics17VT-3/150 Tranmitter Amplifier Component Layout18VT-3/150 Tranmitter Amplifier Schematic Diagram19VT-3/150 Amplifier Low Pass Filter Component Layout20VT-3/150 Amplifier Low Pass Filter Schematic Diagram20Parts Lists21VHF Transmitter Amplifier Electrical Parts List21VHF Transmitter Amplifier Mechanical Parts List24Revision History25Tamanho: 600 KBPáginas: 25Language: EnglishAbrir o manual