Amplifier Research 20T4G18 Amplificador
Fabricante:
Modelo:
20T4G18
Fecha:
Categoría:
Grupo:
Descripción:
Broadband Microwave Amplifier

Información

The Model 20T4G18 is a self contained, forced air cooled, broadband traveling wave tube (TWT) microwave Amplifier designed for applications where wide instantaneous bandwidth, high gain and moderate power output are required. A reliable micro TWT provides a conservative 20 watts minimum at the Amplifier output connector. Stated power specifications are at fundamental frequency. The amplifier's front panel digital display shows forward and reflected output plus extensive system status information accessed through a series of menus via soft keys. Status indicators include power on, warm-up, standby, operate, faults, excess reflected power warning and remote. Standard features include a built-in IEEE-488 (GPIB) Interface, 0dBm input, VSWR protection, gain control, RF output sample port, auto sleep, plus monitoring of TWT helix current, cathode voltage, collector voltage, heater current, heater voltage, baseplate temperature and cabinet temperature. Modular design of the Power supply and RF components allow for easy access and repair. Use of a switching mode Power supply results in significant weight reduction. Housed in a stylish contemporary cabinet this unit is designed for benchtop use but can be removed from the cabinet for rack mounting. The Model 20T4G18 provides readily available RF power for a variety of applications in Test and Measurement, (including EMC RF susceptibility testing), Industrial and University Research and Development, and Service applications.

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Servicio y Manual del usuario
Type manuel:
Servicio y Manual del usuario
Páginas:
60
Tamaño:
1.42 Mbytes (1488776 Bytes)
Idioma:
english
Revisión:
Manuel-ID:
1008254-501_
Fecha:
Formato:
Documento Scaned, todo legible.
Fecha de subida:
2016 09 10
MD5:
df4848cb12ecc75167d01e18bb585388
Descargas:
631

Información

TABLE OF CONTENTS ... i 1 ... DESCRIPTION AND SPECIFICATIONS ... 1 1.1 TWTA Description ... 1 1.2 Suggested Applications ... 1 1.3 Specifications ... 1 1.4 Accessories ... 1 1.5 Test Data Sheet ... 2 2.2.12.22.3THEORY OF O PERATION ... 5 Design of the amplifier ... 5 Description of the RF Circuit ... 5 Description of the Power Supply ... 6 3. OPERATION ... 7 3.1 Warnings and Cautions ... 7 3.2 Installation ... 8 3.2.1 Unpacking ... 8 3.2.2 Mounting ... 8 3.2.3 Cooling Requirements ... 9 3.2.4 AC Line Power Connections ... 10 3.2.5 RF Output Connections ... 10 3.2.6 External Interlock Connector ... 10 3.3 Front Panel Features ... 11 3.4 Front Panel Display and Soft K eys ... 12 3.5 Rear Panel Features ... 16 3.6 Initial Turn On and Warm-up Procedure ... 16 3.7 Emergency Bypass Operation ... 17 3.8 Remote IEEE-488 Operation ... 18 3.9 TWTA General Considerations ... 23 4.4.14.24.34.44.5M AINTENANCE ... 25 Safety Warning ... 25 Unauthorized Repairs ... 25 Preventive Maintenance ... 25 Troubleshooting ... 26 Non-Repairable Modules ... 27 5. TECHNICAL DOCUMENTATION ... 29 5.1 Top Level Build Tree ... 30 5.2 Schematics ... 31 5.3 Wiring Diagrams ... 33 5.4 Parts Lists ... 35 5.4.1 Parts List, HPA Logic and Control Module, A16485-000 ... 36 5.4.2 Parts List, Power supply (Short) For TWT 5172, A23720-099 ... 38 5.4.3 Parts List, Emergency Bypass Board, A24830-001 ... 39 5.4.4 Parts List, Emergency Bypass Board, A24830-002 ... 40 5.4.5 Parts List, HPA Interface Board (Plastic), A25444-000 ... 41 5.4.6 Parts List, HPA 20W 4.2-18GHZ (AR), A28825-300 ... 44 5.4.7 Parts List, Microwave Power Assembly, AR, A28826-000 ... 45 5.5 Recommended Spare Parts ... 46 5.6 Sample Program for IEEE-488 Communication ... 47 No Schematics!

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