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AR worldwide 2000TP8G18M1 Operating And Service Manual

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Operating and
Service Manual
2000TP8G18M1
Model
1013824-502
Part Number
Serial Number

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  • Page 1 Operating and Service Manual 2000TP8G18M1 Model 1013824-502 Part Number Serial Number...
  • Page 3 EC Declaration of Conformity Amplifier Research 160 School House Road Souderton, PA 18964 declare that our product; the Model 2000TP8G18 amplifier to which this declaration relates is in compliance with the requirements of the EEC EMC Directive (89/336/EEC) and Low Voltage Directive (73/23/EEC) in accordance with the relative standards listed below: EMC: EN 50082-1: 1992...
  • Page 5 INSTRUCTIONS FOR SAFE OPERATION BEFORE APPLYING POWER SAFETY SYMBOLS Review this manual and become familiar with all safety This symbol is marked on the equipment when it is necessary for the user to refer to markings and instructions. the manual for important safety information. Verify that the equipment line voltage selection is compatible with the main power source.
  • Page 7 ADDITIONAL WARNINGS & NOTES WARNING: This equipment operates at potentially lethal voltages. Only trained, qualified personnel should operate, maintain, or service it. Hazardous energy may be present while protective covers are removed from the equipment even if disconnected from the power source. Contact may result in personal injury.

  • Page 9: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS ....................i DESCRIPTION AND SPECIFICATIONS ............. 1 TWTA Description....................1 Suggested Applications ..................... 1 Specifications ......................1 Accessories ........................ 1 Test Data Sheet......................2 THEORY OF OPERATION ..................7 Design of the Amplifier..................... 7 Description of the RF Circuit (A30986-000) ............
  • Page 10 Model 2000TP8G18 5.3.6 Parts List, Harmonic Filter Switching Kit, Two Filters, (200W IJ External Filters), A30529-000.....................50 5.3.7 Parts List, Harmonic Filter Switching Kit, One Filter (200W IJ External Filter Switching), A30529-001 ................51 5.3.8 Parts List, RF Components, 23PIJ Supertube, A30983-000.........52 5.3.9 Parts List, Power Supply, 2KW Pulsed IJ Band, A30984-000 ......53 5.3.10...

  • Page 11: Description And Specifications

    1. DESCRIPTION AND SPECIFICATIONS This manual provides operating, interfacing and selected service information pertinent to Amplifier Research Model 2000TP8G18 Broadband Microwave Amplifier. The Model 2000TP8G18 is a 2,000 watt pulse only IJ band traveling-wave tube amplifier (TWTA). TWTA DESCRIPTION The amplifier uses a broadband traveling-wave “supertube” assembly that consists of two traveling wave tubes (TWTs) that are power combined to provide a minimum of 2,000 watts peak pulsed output power over the amplifier's full bandwidth.

  • Page 12: Test Data Sheet

    Model 2000TP8G18 TEST DATA SHEET A Test Data Sheet for a specific unit is prepared at the time of manufacture and is included with the unit's copy of this manual.
  • Page 13 MODEL 2000TP8G18, 160 School House Road, Souderton, PA 18964-9990 USA Phone 215-723-8181•FAX 215-723-5688 2000 WATTS PULSE 7.5 – 18 GHz The Model 2000TP8G18 is a self contained, forced air cooled, broadband traveling wave tube (TWT) microwave amplifier designed for pulse applications at low to moderate duty factors where instantaneous bandwidth, reduced harmonics and high gain are required.
  • Page 14 SPECIFICATIONS Model 2000TP8G18 POWER (fundamental), PEAK PULSE, @ OUTPUT CONNECTOR Nominal ......................2500 watts Minimum ......................2000 watts FLATNESS......................±8 dB maximum, equalized for ±3 dB maximum at rated power FREQUENCY RESPONSE ................7.5 – 18 GHz instantaneously INPUT FOR RATED OUTPUT................1.0 milliwatt maximum GAIN (at maximum setting) ................
  • Page 15 Supplied with one TF type filter and switch kit to offer harmonics 91 kg 50.3. x 39.37 x 77.5 cm 2000TP8G18M1 minus 25dBc maximum at the output of the kit. (See Note 2) (200 lb) 19.8 x 15.5 x 30.5 in.

  • Page 17: Theory Of Operation

    2. THEORY OF OPERATION DESIGN OF THE AMPLIFIER The Model 2000TP8G18 TWT amplifier consists of three main parts, the supertube, the power supply, and the control. These will be described in greater detail below. The heart of the microprocessor control system is the control head assembly (A22933-300), which consists of the CPU board (A18450-006) and the data link board (A22488-001).

  • Page 18: Description Of The Power Supply (A30984-000)

    Model 2000TP8G18 Switching is controlled locally, through the TWTA front panel, or remotely over the TWTA’s GPIB interface. The switch routes the RF to the appropriate band depending upon the sub-band selected: • LOW band selection: routes to a low pass filter for operation from 7.5 – 12.4 GHz. •...
  • Page 19 Model 2000TP8G18 Board Assembly (A16487-382), and switching is controlled by the Regulation Board. The high voltage transformer and rectifiers are contained in the HV Rectifier (A21425-021). The high voltage DC is filtered in the HV Filter Assembly (A21458-004). Interconnects between the power supply modules are either through a motherboard or interconnected wiring harnesses.
  • Page 20 Model 2000TP8G18 Rev -...

  • Page 21: Operation

    3. OPERATION WARNINGS AND CAUTIONS Throughout this manual, the symbol: WARNING: indicates that a hazard exists that may result in personal injury or loss of life. CAUTION: indicates that failure to follow procedures may result in damage to the equipment. WARNING: DANGER - High Voltage Present: Electrical equipment in this TWTA generates and stores high-voltage energy that can result in fatal electrocution.

  • Page 22: Installation

    Model 2000TP8G18 INSTALLATION 3.2.1 Unpacking Upon receiving the TWTA, inspect the shipping container for obvious signs of external damage. If damage is observed, notify the carrier and contact an authorized service representative. Save and store the shipping container in case the unit needs to be returned to the manufacturer for repair. 3.2.2 Mounting and removing The TWTA may be operated as a standalone benchtop unit, or it may be installed in a 19"...

  • Page 23: Cooling Requirements

    Model 2000TP8G18 3.2.3 Cooling Requirements The power supply/control module is provided with a cooling fan, and the supertube assembly has two high- speed blowers. It is important that air movement around the rear of the unit be unobstructed. CAUTION: For either bench or rack mounting, do not position the TWTA in such a way that the air intakes or outlets are blocked, or that the exhaust flow is directed into the intakes.

  • Page 24: External Interlock Connector

    Model 2000TP8G18 3.2.6 External Interlock Connector The TWTA is provided with an external interlock capability via a 15-pin female D-sub connector on the power supply/control module. To enable the high-voltage power supply, it is necessary to provide continuity between pins 3 and 4. If the amplifier shuts down because the interlock was opened, it will be necessary to reset the system to return to standby (see “System Shutdown Screen”...
  • Page 25 Model 2000TP8G18 The filter(s) provided in the assembly may alternatively be installed for use without the switch(es). This allows for harmonic reduction, but eliminates the additional power loss that accompanies the use of switch(es). The filter(s) can be removed from the assembly. The input is then connected directly to the output of the TWTA and the output connected to the load.

  • Page 26: Front Panel Features

    Model 2000TP8G18 FRONT PANEL FEATURES Refer to Figure 3-2 and Table 3-1 below Front Panel Features Figure 3-2. Table 3-1. Front Panel Features Label Title Function MAIN POWER Switchable 7.5 A. circuit breaker; turns on control module, closes contactor providing AC to the power supply assemblies. OPERATE Push-button;...

  • Page 27: Front Panel Display And Soft Keys

    Model 2000TP8G18 FRONT PANEL DISPLAY AND SOFT KEYS The purpose of the front panel display is to permit the operator to access extensive information about the condition and operation of the TWTA. To accomplish this, a number of informational screens are programmed.
  • Page 28 Model 2000TP8G18 Menu screens - The screens at the highest level are called menu screens. There are five menu screens. At power on, the MENU 1 screen is displayed. Each of the menu screens has the soft key S4 labeled MORE. The MORE key (S4) causes the next menu screen to appear.
  • Page 29 Model 2000TP8G18 The Sleep Mode feature allows the user to selectively shut off the heater module of the power supplies. This can be done manually through the front panel or remotely via the computer interface. This is typically used during extended periods of remote operation to improve tube life, by turning off the filaments (Sleep Mode activated).
  • Page 30 Model 2000TP8G18 Event Screen - From MENU 5, S2 (labeled EVENT) provides a display of events logged by the control system. These events include AC power-up, heater warm-up, change from standby to operate, faults, and resets. The events are stored in a first-in-first-out (FIFO) software buffer that has room for 100 events; as new events are logged, the older ones are discarded.

  • Page 31: Rear Panel Features

    Model 2000TP8G18 REAR PANEL FEATURES See Figure 3-4 and Table 3-2 below. Figure 3-4. Rear Panel Features Table 3-2. TWTA Rear Panel Features Label Title Function 208 VAC IN AC power input cable IEEE-488 Remote control connector: 24-pin hermaphrodite Cooling air intake. Cooling air outlet.

  • Page 32: Initial Turn On And Warm-Up Procedure

    Model 2000TP8G18 INITIAL TURN ON AND WARM-UP PROCEDURE Operation is described without the external filter/switch assembly attached. Operation with the external filter/switch assembly attached is the same, except that the band selection must first be set to match the input RF frequency range, and the load is connected to the filter / switch assembly RF output connector.

  • Page 33: Remote Ieee-488 Operation

    Model 2000TP8G18 CAUTION: Do not allow the TWTA to remain in STANDBY for extended periods of time. If the TWTA will not be used in the OPERATE mode within an hour, shut the TWTA off. The reason for this precaution is that in the STANDBY mode, the TWTs’...

  • Page 34: Table 3-3 Catalog Of Ieee-488 Commands

    Model 2000TP8G18 Table 3-3. Catalog of IEEE-488 Commands Command Function Units Response format RDSTAT Returns status code of processing of previous command (see Table 3-4) STATUS=[ ] RDFLT Returns system fault code (see Table 3-5) flt=[ ] Emulates pressing the System ON button from System OFF ( Exit Sleep SYSTEM:ON;...

  • Page 35: Table 3-4 Catalog Of Status Codes

    Model 2000TP8G18 Command Function Units Response format SPOHIDP Sets over forward power warning setpoint (dBm) Peak RDPOLODP Returns under forward power warning setpoint (dBm) Peak Polo=[ ]dBm Pk SPOLODP Sets under forward power warning setpoint (dBm) Peak RDPOHIWP Returns over forward power warning setpoint (W) Peak watts Pohi=[ ]W Pk SPOHIWP...

  • Page 36: Table 3-5 Catalog Of Fault Codes

    Model 2000TP8G18 Table 3-5. Catalog of Fault Codes (The RDFLT command causes the TWTA to return a string in the form flt=[code], where [code] is an ASCII number whose meaning is given below) Fault Code Meaning No fault SYSTEM FAULT FIL NOT READY LOW LINE CATH O/VOLTAGE...

  • Page 37: Table 3-6 Catalog Of System State Codes

    Model 2000TP8G18 Table 3-6. Catalog of System State Codes (The RDLOGIC command causes the TWTA to send a string containing an operational state code consisting of 4 ASCII characters representing hex digits. The response is in the form "Sys:[w][x][y][z][eol]" where the hex values of [w],[x],[y] and [z]are formed as shown below) z bit Meaning...

  • Page 38: Table 3-8 Catalog Of *Stb?; Response Codes

    Model 2000TP8G18 Table 3-8. *STB?; Response Codes (The command *STB?; causes the TWTA to send a string containing an operational state code consisting of 2 ASCII characters representing hex digits. The response is in the form "STATUS:[x][y][eol]" where the hex values of [x] and [y] are formed as shown below) y bit Meaning...

  • Page 39: Twta General Considerations

    Model 2000TP8G18 It is recommended that the RDSTAT command be used to provide the host program with a report on how a command was processed. A small sample program that can send commands and receive the strings returned by the TWTA is included in section 5.5.
  • Page 40 Model 2000TP8G18 Noise Power Density (NPD): TWTAs produce rf noise over their operating frequency range, as specified by the Noise Power Density (NPD). This noise is significantly higher than the noise produced by typical solid state amplifiers, and is inherent in present TWTAs. The noise may surprise users new to TWTAs when it accumulates and results in a significant indication in a broadband measurement device –...

  • Page 41: Maintenance

    4. MAINTENANCE The TWTA requires a minimum of routine maintenance. The only moving parts are the elements of switches, relays and blowers. Preventive maintenance is recommended in Paragraph 4.3. In the event that the TWTA needs repairs, it is recommended that the unit be returned to the factory. However, some user service organizations may choose to perform their own corrective maintenance, and under some circumstances returning the unit to the factory may be impractical.

  • Page 42: Troubleshooting

    Model 2000TP8G18 1. Remove the amplifier from the cabinet or rack as follows: NOTE: Due to the weight of the unit, the removal of the amplifier from the cabinet or rack is a two- person operation. Disconnect power, RF, and any other interface connectors. On the rear of the unit, remove any screws used to connect brackets to the amplifier.

  • Page 43: Non-Repairable Modules

    Model 2000TP8G18 NON-REPAIRABLE MODULES The Heater power supply (A23724-000), the Grid modulators (A23684-100 and A23684-101), the HV filter (A21458-004), the Diode/Cap assembly (A21425-021), and the Capacitor bank (A21458-008) are encapsulated modules and are not repairable. Contact an authorized service representative if replacement modules are needed.
  • Page 44 Model 2000TP8G18 Rev -...

  • Page 45: Technical Documentation

    5. TECHNICAL DOCUMENTATION Note: The purpose of this technical documentation section is to provide a guide to the TWTA for technician- level servicing. It is intended for use by qualified technical personnel who must troubleshoot and repair the TWTA in the field. Such repairs are typically limited to replacement of modules or major components.
  • Page 46 Model 2000TP8G18 Rev -...

  • Page 47: Top Level Build Tree

    Model 2000TP8G18 TOP LEVEL BUILD TREE A30985-000 TWTA 2KW PULSED IJ BAND (AR) A30984-000 POWER SUPPLY, 2KW PULSED IJ BAND (AR) 1A1A1 A22826-344 PULSED TWT PS (PFC) FOR TWT MTI-3444L 1A1A1A1 A23280-000 HEAT SINK/MOTHER BOARD 1A1A1A2 A23687-150 LV POWER SUPPLY MODULE, AC INPUT 1A1A1A3 A16485-000 HPA LOGIC AND CONTROL MODULE...
  • Page 48 Model 2000TP8G18 1A1A4A3 A22488-001 GPIB/LINK TRANSCEIVER BOARD, 5U AND 6U TWT 1A1A5 A26856-001 FRONT PANEL ASSY, AR 500T SINGLE PHASE 1A1A5A1 A22700-900 HPA DISPLAY BOARD 1A1A5A2 A24830-001 EMERGENCY BYPASS BOARD 1A1A6 A24830-000 EMERGENCY BYPASS BOARD 1A1A7 A26721-000 SNUBBER ASSY.,300MHZ 1A1A8 A26874-000 DUAL MODULATOR LV HARNESS 1A1A9...

  • Page 49: Schematics

    Model 2000TP8G18 SCHEMATICS 10-16485-000 HPA Logic and Control (A16485-000) 10-16487-000 Power Board Assembly (A16487-382) 10-23683-100 Power Factor Module (A23683-100) 10-23687-001 LV Power Supply Module (A23687-150) 10-24830-000 Remote Control Board, Foldback only (A24830-000) 10-25444-000 HPA Interface (A25444-000) (4 pages) 10-26874-000 Dual Modulator LV Harness (A26874-000) 10-30529-000 Harmonic Filter Switching Kit (Two filters) (A30529-000) 25-30529-001...
  • Page 50 Model 2000TP8G18 Rev -...

  • Page 51: Parts Lists

    Model 2000TP8G18 PARTS LISTS A16485-000 HPA Logic and Control A22826-344 Pulsed TWT Power Supply A24830-000 Remote Control Board, Foldback only (Emergency Bypass Board) A24830-001 Remote Control Board (Emergency Bypass Board) A25444-000 HPA interface A30529-000 Harmonic Filter Switching Kit, Two Filters (200W IJ External Filters) A30529-001 Harmonic Filter Switching Kit, One Filter (200W IJ External Filter Switching) A30983-000...

  • Page 52: Parts List, Hpa Logic And Control Module, A16485-000

    Model 2000TP8G18 5.3.1 Parts List, HPA Logic and Control Module, A16485-000 REF DESIG ETM P/N DESCRIPTION QUANTITY B16485-000 HPA LOGIC AND CONTROL BOARD C16333-000 CAP,33MF,25V,AERL,(NICHICON UVX1E330M) C2, C5, C15, C58 C31028-000 CAP,1000PF,200VDC,10%,CER,1% FAILURE,(KEMET CKR05 SERIES W/"V" OPTION) C3, C9, C10, C13, C14, C17, C31032-000 CAP,0.01MF,200VDC,10%,CER,1% FAILURE,(KEMET C19, C21, C22, C27, C28,...
  • Page 53 Model 2000TP8G18 REF DESIG ETM P/N DESCRIPTION QUANTITY R47, R48 R22200-000 RES,20K,1/2W,1%,MF,100PPM,(DALE RN55D) R79, R80 R22470-000 RES,47K,1/2W,1%,MF,100PPM,(DALE RN55D) R42, R60, R61, R89 R23100-000 RES,100K,1/2W,1%,MF,100PPM,(DALE RN55D) R33, R55 R23698-000 RES,698K,1/2W,1%,MF,100PPM,(DALE RN55D) R23750-000 RES,750K,1/2W,1%,MF,100PPM,(DALE RN55D) R23845-000 RES,845K,1/2W,1%,MF,100PPM,(DALE RN55D) R23953-000 RES,953K,1/2W,1%,MF,100PPM,(DALE RN55D) R12, R15 R32020-000 TRIMPOT,10K,1/2W,10%,CERMET,20T,SIDE ADJ,(BECKMAN 67X)

  • Page 54: Parts List, Pulsed Twt Power Supply, A22826-344

    Model 2000TP8G18 5.3.2 Parts List, Pulsed TWT Power Supply, A22826-344 REF DESIG ETM P/N DESCRIPTION QUANTITY A16485-000 HPA LOGIC AND CONTROL MODULE A16487-382 POWER BOARD ASSEMBLY,PULSED TWTA A21425-021 DIODED/CAP ASSY FOR TWT 3444L A21458-004 HV FILTER A21458-008 CAPACITOR BANK AND SPURIOUS REDUCTION FILTER A21459-021 PWM BOARD FOR TWT 3444...

  • Page 55: Parts List, Remote Control Board, Foldback Only (Emergency Bypass Board), A24830-000

    Model 2000TP8G18 5.3.3 Parts List, Remote Control Board, Foldback Only (Emergency Bypass Board), A24830-000 REF DESIG ETM P/N DESCRIPTION QUANTITY B24830-000 EMERGENCY BYPASS BOARD C30010-000 CAP,10MF,35V,TANT,RADIAL,(NEMCO TB10-35K1) C31040-000 CAP,1MF,50VDC,10%,CER,1% FAILURE,(KEMET CKR06 SERIES W/"V" OPTION) I2, I3 I10066-000 LED,RED,HIGH EFFICIENCY,HIGH BRIGHTNESS I10096-000 LED,GREEN,DIFFUSED,T1-3/4 (XC55G) J18180-000...

  • Page 56: Parts List, Remote Control Board (Emergency Bypass Board), A24830-001

    Model 2000TP8G18 5.3.4 Parts List, Remote Control Board (Emergency Bypass Board), A24830-001 REF DESIG ETM P/N DESCRIPTION QUANTITY B24830-000 EMERGENCY BYPASS BOARD C3-C5 C04105-000 CAP,0.1MF,100V,20%,MON,(KEMET C331C104M1R5CA) C30010-000 CAP,10MF,35V,TANT,RADIAL,(NEMCO TB10-35K1) C31028-000 CAP,1000PF,200VDC,10%,CER,1% FAILURE,(KEMET CKR05 SERIES W/"V" OPTION) C31032-000 CAP,0.01MF,200VDC,10%,CER,1% FAILURE,(KEMET CKR06 SERIES W/"V" OPTION) C31040-000 CAP,1MF,50VDC,10%,CER,1% FAILURE,(KEMET CKR06 SERIES W/"V"...

  • Page 57: Parts List, Hpa Interface Board, Plastic, A25444-000

    Model 2000TP8G18 5.3.5 PARTS LIST, HPA INTERFACE BOARD, PLASTIC, A25444-000 REF DESIG ETM P/N DESCRIPTION QUANTITY B25444-000 HPA INTERFACE BOARD C161 C03105-000 CAP,0.01MF,100V,CER,10%,RADIAL,(AVX SR201C103KAA) C171 C04223-000 CAP,0.22MF,35V,TANT,RADIAL, [JAMCO 33507] C20, C32, C100 C05153-000 CAP,1.5MF,35V,TANT,RADIAL,(JAMECO TM1.5/35) C129, C163 C05223-000 CAP,2.2MF,35V,10%,SOLID SEALED TANT,RADIAL,(SPRAGUE 199D225X9035BA1) C80, C81, C164 C06103-000...
  • Page 58 Model 2000TP8G18 REF DESIG ETM P/N DESCRIPTION QUANTITY J16214-000 TEST JACK,YELLOW,VERTICAL,(EF JOHNSON 105- 0857-001) J16215-000 TEST JACK,GREEN,VERTICAL,(EF JOHNSON 105- 0854-001) J16216-000 TEST JACK,BLUE,VERTICAL,(EF JOHNSON 105- 0860-001) J18167-000 D-SUB,37 PIN,FEMALE,PCB MOUNT,RIGHT ANGLE (AMP 745784-4) J18180-000 CONN,D-SUB,15 PIN,MALE,STRAIGHT,PCB MOUNT (POSITRONIC MD15M3000) J31013-000 CONN,D-SUB,25 PIN,MALE,RIGHT ANGLE,PCB MOUNT,[AMP 747238-4] XJ1-XJ4...
  • Page 59 Model 2000TP8G18 REF DESIG ETM P/N DESCRIPTION QUANTITY U17545-000 DRIVER,OIL,DS75451N,DUAL AND,[NATIONAL SEMICONDUCTOR DS75451N] U6, U19, U34, U39, U60 U20148-000 IC,HEX INVERTER,SCHMIDTT TRIGGER,(74HC14) (SSD) U20730-000 IC,DUAL J-K FLIP FLOP W/RESET,(7473) (SSD) U21328-000 IC,QUAD 2 INPUT NAND,SCHMIDTT TRIGGER,(74HC132) (SSD) U21388-000 IC,3 TO 8 DECODER/DEMULTIPLEXER,INVERTING,(74HC138) (SSD) U21536-000...

  • Page 60: Parts List, Harmonic Filter Switching Kit, Two Filters, (200W Ij External Filters), A30529-000

    Model 2000TP8G18 5.3.6 Parts List, Harmonic Filter Switching Kit, Two Filters, (200W IJ External Filters), A30529-000 REF DESIG ETM P/N DESCRIPTION QUANTITY A30530-000 CABLE, BANDSWITCH CONTROL E01023-000 IJ BAND ABS. WR-90 HARM. FILTER, BP= 8.0- 12.4GHZ, BS=16.0-40. GHZ,250 WATTS CW MIN,[MDC, 57090-602] E01024-000 IJ BAND ABS.

  • Page 61: Parts List, Harmonic Filter Switching Kit, One Filter (200W Ij External Filter Switching), A30529-001

    Model 2000TP8G18 5.3.7 Parts List, Harmonic Filter Switching Kit, One Filter (200W IJ External Filter Switching), A30529-001 REF DESIG ETM P/N DESCRIPTION QUANTITY A30530-001 CABLE, SINGLE FILTER SWITCH CONTROL E01023-000 IJ BAND ABS. WR-90 HARM. FILTER, BP= 8.0- 12.4GHZ, BS=16.0-40. GHZ,250 WATTS CW MIN,[MDC, 57090-602] E01028-000 RF GASKET WR-90 GROOVED FLANGE,...

  • Page 62: Parts List, Rf Components, 23Pij Supertube, A30983-000

    Model 2000TP8G18 5.3.8 Parts List, RF Components, 23PIJ Supertube, A30983-000 REF DESIG ETM P/N DESCRIPTION QUANTITY E00324-000 DUAL BROADWALL COUPLER, WRD-750 -40, -40 DB [PER SPECIFICATION DRAWING] E00325-000 RF LOAD, 500W, WRD-750, AIR COOLED E00326-000 90 DEG. OFFSET JOGGLE, WRD-750 (PER ETM DWG.

  • Page 63: Parts List, Power Supply, 2Kw Pulsed Ij Band, A30984-000

    Model 2000TP8G18 5.3.9 Parts List, Power Supply, 2KW Pulsed IJ Band, A30984-000 REF DESIG ETM P/N DESCRIPTION QUANTITY A22826-344 PULSED TWT P. SUPPLY (PFC) FOR TWT MTI-3444L A22933-300 CONTROL HEAD ENCLOSURE, IEEE-488 A24830-000 EMERGENCY BYPASS BOARD A25444-000 HPA INTERFACE BOARD (PLASTIC FIBERS) A26721-000 SNUBBER ASSY.,300MHZ A26856-001...

  • Page 64: Parts List, Twta 2Kw Pulsed Ij Band (Ar), A30985-000

    Model 2000TP8G18 5.3.10 Parts List, TWTA 2KW Pulsed IJ Band (AR), A30985-000 REF DESIG ETM P/N DESCRIPTION QUANTITY A30846-000 LOW VOLTAGE CABLE ASSY, 25 COND, 2500X A30984-000 POWER SUPPLY, 2KW PULSED IJ BAND (AR) A30986-000 SUPERTUBE, PULSED 7.5 - 18 GHZ, WRD-750 (AR) Rev -...

  • Page 65: Parts List, Wiring Kit, 23Pij, Single Phase, A31049-000

    Model 2000TP8G18 5.3.11 Parts List, Wiring Kit, 23PIJ, Single Phase, A31049-000 REF DESIG ETM P/N DESCRIPTION QUANTITY A30346-000 EMI MODIFICATION KIT FOR 400KU E01039-000 AIR FILTER TRIM-TO-FIT EXPANDED ALUMINUM [GRAINGER 5C438] E01479-000 TRANSDUCER,CURRENT,50A RMS,+/- 4VDC OUT,1%,(LEM USA HAL 50-S) E20282-000 EMI LINE FILTER,(SAE POWER INC STD- E30145-010 RIBBON CABLE,10.5,28 AWG,D-SUB 15...
  • Page 66 Model 2000TP8G18 REF DESIG ETM P/N DESCRIPTION QUANTITY N24366-000 RIBBON CABLE CLAMP N24366-001 CABLE CLAMP,COVER (KYGAR DEMAND- PULL) N24373-000 CONNECTOR COVER N25458-000 RIBBON CABLE CLAMP XA12 N27418-000 COVER TERMINAL EMI FILTER S25002-000 SWITCH,PUSHBUTTON,SPDT,SAFETY DOOR INTERLOCK,DEFEATABLE,(MICRO SWITCH 3AC2) S26026-000 C/B,2 POLE,15A,(AIRPAX IEGH-66-1-61- 15.0-C-21) U00052-000 PRECISION CELSIUS TEMP SENSOR, TO-...

  • Page 67: Recommended Spare Parts

    Model 2000TP8G18 RECOMMENDED SPARE PARTS A16487-382 Power Board Assembly A21425-021 Diode / Cap Assembly A21458-004 HV Filter A21458-008 Capacitor Bank and Spurious Reduction Filter A21459-021 PWM Board A23683-100 Power Factor Module A23684-100 Grid Modulator, Regulated Reference (Slave) A23684-101 Grid Modulator, Regulated Reference A23687-150 Low Voltage Power Supply Module A23692-000...

  • Page 68: Sample Program For Ieee-488 Communication

    Model 2000TP8G18 SAMPLE PROGRAM FOR IEEE-488 COMMUNICATION 1000 ! *********************************************** 1010 IEEE-488 COMMUNICATIONS SOFTWARE 1030 7/24/92 AARON D. McCLURE 1040 ! *********************************************** 1041 DIM F$[80] 1042 DIM A$[80] 1050 CLEAR SCREEN 1060 INPUT "INPUT COMMAND TO SEND TO POWER SUPPLY. EXIT TO QUIT.",A$ 1070 IF A$="EXIT"...

  • Page 69: Appendix Application Note 35: Pulse Twtas

    . 35 PPLICATION 160 School House Road, Souderton, PA 18964-9990 USA telephone (215) 723-8181 • fax (215) 723-5688 e-mail: info@ar-amps.com • website: www.ar-amps.com Appendix Application Note 35: Pulse TWTAs INTRODUCTION Amplifier Research's PULSE traveling wave tube amplifiers (TWTAs) offer a cost-effective source of high RF power for applications in which only a low to moderate RF duty cycle is required, i.e., where the RF power is on for only a small percentage of the time.

  • Page 70: Unique Specification For Pulse Twtas

    Model 2000TP8G18 UNIQUE SPECIFICATION FOR PULSE TWTAS Some unique specification characteristics (those not commonly specified for CW rated amplifiers) of Amplifier Research's PULSE TWTAs are listed below, along with a set of typical parameter values. An explanation of their significance follows. PULSE CAPABILITY Pulse Width ..............

  • Page 71: Pulse Width

    After this initial delay in enabling the RF output, the RF output level will respond to the level of the RF input. As with a CW amplifier, the subsequent RF rise and fall times are inversely related to the RF bandwidth of the specific TWTA, with typical rise and fall times in the low- or sub-nanosecond range.

  • Page 72: Duty Cycle

    Model 2000TP8G18 DUTY CYCLE The Duty Cycle specification (4% max.) is an additional limitation on the TTL-level input that must be observed by the user. This specification defines the maximum percentage of the time that the TTL-level input can be allowed to remain positive (logical 1). For example, if the chosen PRF is 5kHz, then the maximum allowable TTL input pulse width is reduced to 8 microseconds (1/5,000 x .04 sec.).
  • Page 73 WARRANTIES: LIMITATION OF LIABILITY Seller warrants (i) that seller has title to the goods sold and (ii) that Amplifiers, Antennas, Pre-compliance Test Systems, Transient Generators, Power Meters, Directional Couplers and Tripods will be free from defects in material and workmanship for a period of three (3) years from date of shipment shown on Amplifier Research invoice.

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