AR 2000S1G2z8 Operating And Service Manual
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AR 2000S1G2z8 Operating And Service Manual

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Operating and
Service Manual
2000S1G2z8
Model
10051218-High Voltage
10051217-Low Voltage
Part Number
Serial Number
160 Schoolhouse Road, Souderton, PA 18964 • 215-723-8181 • Fax 866-859-0582 • www.arworld.us

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  • Page 1 Operating and Service Manual 2000S1G2z8 Model 10051218-High Voltage 10051217-Low Voltage Part Number Serial Number 160 Schoolhouse Road, Souderton, PA 18964 • 215-723-8181 • Fax 866-859-0582 • www.arworld.us...
  • Page 3 REGULATION (EC) 1907/2006 of the European Parliament and of the Council of 18 December 2006 concerning the Registration, Evaluation, Authorization and Restriction of Substances of Very High Concern Chemicals (SVHC) Supporting documentation is held by AR RF/Microwave Instrumentation’s Quality department in Pennsylvania, United States. Place of issue:...
  • Page 5 Instructions for European EMC Conformity WARNING It is the responsibility of the user of this equipment to provide electromagnetic shielding, filtering and isolation which is necessary for EMC compliance to Directive 2014/30/EU. The equipment must therefore be operated in a shielded area which provides a sufficient level of attenuation to meet the radiated emissions and immunity specifications.
  • Page 7 The caution symbol denotes a potential hazard. Attention must be given to the statement to prevent Your AR equipment may have more than one power supply cable. Use damage, destruction, or harm. only approved power cable(s). If you have not been provided with a Dangerous voltages are present.
  • Page 8 EQUIPMENT CONTAINING LASERS risk of serious injury due to unsafe AR Field Probes (FL/PL Series) and Field Analyzers (FA product handling should be a fundamental Series) are Class 1 laser products containing embedded consideration every user.
  • Page 9 Zur Vermeidung von Personen- oder Sachschäden gilt BEVOR SIE DAS GERÄT ANSCHLIESSEN es, die Hinweise zu beachten. Ihre AR-Ausrüstung hat möglicherweise mehr als ein Stromversorgungskabel. Gefährliche elektrische Spannungen sind vorhanden. Verwenden Sie nur zugelassene Stromkabel. Falls Sie kein Stromkabel oder Höchste Vorsicht ist geboten.
  • Page 10 Die meisten Geräte müssen während des Versands, der Montage und des Gebrauchs LASER-INFORMATION transportiert werden. Jeder Nutzer sollte sich AR - Feldsonden (FL/PL-Serie) und Feldanalysatoren (FA-Serie) über das Risiko von schweren Verletzungen sind Laserprodukte der Klasse 1 mit eingebetteten Klasse-4- durch unsachgemäße...
  • Page 11 électrode de mise à la Votre équipement AR peut disposer de plus d’un câble d’alimentation terre de protection. électrique. Utilisez uniquement un ou des câbles d’alimentation approuves.
  • Page 12 éliminer le risque injustifié de blessures causées par le levage est fournie par les méthodes de travail de NIOSH (publication Les sondes de champ AR (série FL/PL) et les analyseurs de n° 94-110) disponibles sur : champ (série FA) sont des produits laser de classe 1 contenant des lasers intégrés de classe 4.
  • Page 13 Er zijn gevaarlijke elektrische spanningen aanwezig. Wees uiterst voorzichtig. VOOR HET OPZETTEN VAN DE STROOM Uw AR-apparatuur kan meer dan een netvoedingskabel bezitten. Gebruik alleen goedgekeurde netvoedingskabel(s). Koopt een Wijst op een terminal aan die bedoeld is voor aansluiting netvoedingskabel die is goedgekeurd voor gebruik in uw land als u...
  • Page 14 APPARAAT DAT LASERS BEVAT distributie, de assemblage en het gebruik moeten worden behandeld, moet het risico AR-terreinsondes (FL/PL-serie) en terreinanalysatoren (FA- op ernstig letsel als gevolg van een serie) zijn laserproducten van klasse 1 met ingesloten onveilige behandeling van het product een klasse 4-lasers.

  • Page 15: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS ....................i GENERAL INFORMATION ................1 General Description ....................1 Specifications ......................1 Power Supplies ....................... 1 Protection Circuits ....................2 Installation ......................2 1.5.1 Location ........................2 1.5.2 Power ........................3 OPERATING INSTRUCTIONS ................ 7 General ........................
  • Page 16 Model 2000S1G2z8 2.8.3 Switch Breakout Board (A67) ................29 Fault Definition ....................32 2.9.1 No-Fault Control Actions ..................36 2.10 Remote Control Interfaces ..................37 2.12.1 GPIB (IEEE-488) Communications ..............37 2.12.2 RS-232 Communications ..................37 2.12.3 Fiber-Optic Serial Communications ..............38 2.12.4 USB Communications ..................
  • Page 17 Low or No Power Output (RF Test) (Diagram 10051819,10051526) ....60 Appendix A. Installing Software Upgrades ..............63 FIGURES 2000S1G2z8 AC Line Cord Installation ..............3 Model 2000S1G2z8 Front Panel ................8 Model 2000S1G2z8 Rear Panel ................9 Typical Response @ -20 dBm Input ..............60...
  • Page 18 Model 2000S1G2z8...

  • Page 19: General Information

    10 decibels (dB) or more. Solid-state technology is used exclusively to offer significant advantages in reliability and cost. A Model 2000S1G2z8, used with a frequency-swept signal source, will provide 2000 watts of swept power output from 1.0–2.8 GHz. Typical applications include antenna and component testing, wattmeter calibration, and electromagnetic interference (EMI) susceptibility testing, as well as usage as a driver for frequency multipliers and high-power amplifiers.

  • Page 20: Protection Circuits

    Select an operating location that will permit air to circulate freely around the amplifier’s cabinet. The Model 2000S1G2z8 utilizes air cooling and should be located where the normal flow of air into or exiting from the unit will not be restricted, diverted, or re-circulated through the unit itself; in particular, the flow of warm air exiting the rear of the amplifier should not be impeded.
  • Page 21 VAC, 47/63Hz, three phase Wye (5-wire). A 40 amp or greater, common-trip circuit breaker should be used to supply power to the 2000S1G2z8 high voltage model. Included with the high voltage model is two 15 foot (4.7 meters), five-conductor harmonized line cords consisting of three phase wires (brown, black, grey), a neutral conductor (blue) and a protective GND conductor (green/yellow).
  • Page 22 Model 2000S1G2z8 Rev A...
  • Page 23 Amplifiers Model 2000S1G2z8 The Model 2000S1G2z8 is a solid-state, This is a multiple purpose amplifier. The Class A design, self-contained, air- low level of spurious signals and cooled, broadband power amplifier linearity make it ideal for use as a driver...
  • Page 24 Model 2000S1G2z8 • 2000 W • 1.0 - 2.8 GHz Electrical Specifications Parameter Symbol Minimum Typical Maximum Unit Rated Power Output PSAT 2000 2500 >3000 Input for Rated Output P3dB Power Output @ 3dB Compression 1800 2400 >2750 Power Output @ 1dB Compression...
  • Page 25 Model 2000S1G2z8 • 2000 W • 1.0 - 2.8 GHz Mechanical Specifications Parameters Typical Unit 57.3 x 193.8 x 103.1 Dimensions (38U Rack) (W x H x D) 22.6 x 76.3 x 40.6 Weight Cooling Forced air (self-contained fans) Side inlets / rear outlet Δt = +7°C (typical)

  • Page 26: Location

    Model 2000S1G2z8 • 2000 W • 1.0 - 2.8 GHz Ordering Options 2000S1G2z8 Model RF IN Conn RF OUT Conn RF Sample Primary Location, Type Location, Ports Power Type CONNECTOR LOCATION RF SAMPLE PORTS PRIMARY POWER Front Front 200-240 VAC...

  • Page 27: Power

    Model 2000S1G2z8 • 2000 W • 1.0 - 2.8 GHz TYPICAL PSAT POWER @ 0 dBm INPUT 3500 3250 3000 2750 2500 2250 2000 1750 1500 1250 1000 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 TYPICAL POWER @ P3 dB COMPRESSION...
  • Page 28 Model 2000S1G2z8 • 2000 W • 1.0 - 2.8 GHz TYPICAL POWER @ P1dB COMPRESSION 3500 3250 3000 2750 2500 2250 2000 1750 1500 1250 1000 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 TYPICAL SMALL SIGNAL GAIN @ -20 dBm INPUT...
  • Page 29 Model 2000S1G2z8 • 2000 W • 1.0 - 2.8 GHz TYPICAL 2 HARMONIC @ 1500 W 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 TYPICAL 3 HARMONIC @ 1500 W 1000 1200 1400 1600 1800 2000 2200 2400...
  • Page 30 TYPICAL NOISE FIGURE AR RF/Microwave Instrumentation • 160 Schoolhouse Rd, Souderton, PA 18964 To order AR Products, call: 215.723.8181. For an applications engineer call: 800.933.8181. Direct to Service call: 215.723.0275 or email: service@arworld.us For Faxing Orders: 866.859.0582 (Orders Only Please) info@arworld.us Approved for public release by AR RF/Microwave Instrumentation ISO 9001:2015 Certified •...

  • Page 31: Operating Instructions

    2. OPERATING INSTRUCTIONS GENERAL Operation of the Model 2000S1G2z8 broadband amplifier is quite simple. The amplifier’s input signal, whether swept or fixed in frequency, is fed into the jack marked RF INPUT, and the amplifier’s output signal is taken from the jack labeled RF OUTPUT. The unit is turned on by activating the front panel POWER switch. In the event of a major malfunction, protection is provided by a circuit breaker located on the unit’s rear panel.

  • Page 32: Control And Indicator Functions

    Model 2000S1G2z8 CONTROL AND INDICATOR FUNCTIONS The Model 2000S1G2z8’s front panel is shown in Figure 2-1; the unit’s rear panel features are detailed in Figure 2-2. Figure 2-1. Model 2000S1G2z8 Front Panel Item Title Function INHIBIT, LOCAL, REMOTE Keylock Switch, 3-position; key removal in INHIBIT position only...

  • Page 33: Interface Identification

    Model 2000S1G2z8 Figure 2-2. Model 2000S1G2z8 Rear Panel Item Title Function RF INPUT RF Input Connector (rear option standard) SAFETY INTERLOCK Safety Interlock, 15-pin DIN connector REMOTE CONTROL GPIB, USB RS-232, F/O and Ethernet remote control connectors RF SAMPLE PORTS...
  • Page 34 Model 2000S1G2z8 2.3.1.1 Keylock Switch The Keylock Switch is provided for protection from unauthorized use or unexpected remote control of the amplifier. The amplifier can only be turned on locally when the Keylock Switch is in the LOCAL position. Likewise, the unit can only be turned on or controlled remotely when the Keylock Switch is in the REMOTE position.

  • Page 35: Inputs And Outputs

    Model 2000S1G2z8 INPUTS AND OUTPUTS The input and output connectors described in the following sections are located on the unit’s front or rear panels; refer to the Front and Rear Panel features drawings (Figure 2-1, Figure 2-2). 2.4.1 RF Input The Type N female RF Input connector for the amplifier can be located on the front or rear of the amplifier.

  • Page 36: Safety Interlock Connector

    Model 2000S1G2z8 2.4.5 Safety Interlock Connector Located on the left side of the rear panel, as viewed from the rear, are the remote interface connectors and safety interlock connectors. The 15-pin D-sub miniature female safety interlock connector provides two separate interlock loops.

  • Page 37: Local User Interface

    Model 2000S1G2z8 LOCAL USER INTERFACE This section describes the user interface used during local operation of the amplifier as it pertains to the control system. 2.6.1 Menu Map Below is a menu map for the amplifier. The screens depicted are only example screens. The actual values and settings will be different on the actual amplifier depending on user settings and operating conditions.

  • Page 38: Main Menu Screen

    Model 2000S1G2z8 2.6.3 Main Menu Screen The Main Menu screen is only available when the Keylock switch is in the LOCAL position. At the top of the screen is a blue bar graph and associated number that can represent either the RF Gain, ALC Threshold, ALC Detector Gain, or ALC Response value.

  • Page 39: Select Screen

    Model 2000S1G2z8 2.6.4 Select Screen The Select screen is the same as the Main Menu screen except for the menu options. The menu options in this screen allow the user to select what parameter the ADJUST knob can adjust. Once a selection is made, the screen will automatically change back to the Main Menu screen.

  • Page 40: User Screen

    Model 2000S1G2z8 2.6.6 User Screen The User screen presents the user with the revision levels of all the firmware that is running on all the main control system components. For the Switch Breakout Board (SBB) assemblies, only the piggy-back assembly firmware is listed.

  • Page 41: Power Indicator Frequency Screen

    Model 2000S1G2z8 2.6.8 Power Indicator Frequency Screen The Power Indicator Frequency screen allows the user to enter the current test frequency and improve the accuracy of the forward and reverse power indicators using a factory-installed look-up table. The black text at the top of the screen represents the current setting. The grey text shown inside the black box represents the new desired frequency and will update while entering a new value using the keypad.

  • Page 42: I/O Screen

    Model 2000S1G2z8 2.6.10 I/O Screen The I/O screen is used to present the user with menu options pertaining to the remote I/O ports found on the rear of the unit and the interaction with the touch screen. These options include the GPIB address, RS- 232/Fiber-Optic Serial Baud Rate, and key beep.

  • Page 43: Rs-232/Fiber-Optic Serial Baud Rate Screen

    Model 2000S1G2z8 2.6.12 RS-232/Fiber-Optic Serial Baud Rate Screen The RS-232/Fiber-Optic Serial Baud Rate screen is used to select the baud rate used by both the RS-232 serial port and the Fiber-Optic serial port. To get here from the Main Menu, touch the User menu button followed by the I/O menu button and finally the Serial menu button.

  • Page 44: Remote Screen

    Model 2000S1G2z8 2.6.14 Remote Screen When the Keylock switch is set to the REMOTE position the Remote screen appears. This screen has all the same information as the Main Menu screen except that the blue bar graph and associated value are only for the RF Gain value.

  • Page 45: Alc Lockout Feature

    Model 2000S1G2z8 2.6.16 ALC Lockout Feature The ALC lockout feature allows users to lock all ALC settings and remain in the ALC Internal Mode regardless of a power cycle. Under normal operating conditions these settings can be changed at any time and reset with a power cycle.

  • Page 46: Control States

    Model 2000S1G2z8 CONTROL STATES This section defines the various control software states required for this amplifier. An example of typical control states is shown below. The subsections below, define any special responsibilities of the control system. One example would be to state that when transitioning from the RF ON state to the POWER OFF state, care must be taken to remove the bias voltage from the power modules before disabling the main power supplies.

  • Page 47: Control Lines

    Model 2000S1G2z8 CONTROL LINES This section defines all required control lines to be utilized by the control software and any actions (faults or alerts) that the control software must perform. In the tables below, indicate the NO ACTION STATES (or the correct operating states) of each line required and any actions that are required if the line is out of bounds.
  • Page 48 Model 2000S1G2z8 2.8.1.3 Connector J5 Lines 3, 4: Supplies +3.3 Vdc via a 10kOhm pull-up resistor Lines 1-4: Guaranteed operation up to +30 Vdc Lines 3, 4: 0 Vdc or +3.3 Vdc TTL Inputs & OD Outputs: Guaranteed operation up to +5 Vdc...

  • Page 49: Switch Breakout Board (A65)

    Model 2000S1G2z8 2.8.2 Switch Breakout Board (A65) 2.8.2.1 Connector J9 Indicate a range representing a NO ACTION STATE (i.e. +1.2 Vdc << +2.3 Vdc) Notes Once activated, inputs are checked for all following control states Guaranteed operation between 0.0 Vdc and +3.3Vdc (damage occurs outside this range)
  • Page 50 Model 2000S1G2z8 2.8.2.3 Connector J5 Lines 3, 4: Supplies +3.3 Vdc via a 10kOhm pull-up resistor Lines 1-4: Guaranteed operation up to +30 Vdc Lines 3, 4: 0 Vdc or +3.3 Vdc TTL Inputs & OD Outputs: Guaranteed operation up to +5 Vdc...

  • Page 51: Switch Breakout Board (A66)

    Model 2000S1G2z8 2.8.3 Switch Breakout Board (A66) 2.8.3.1 Connector J9 Indicate a range representing a NO ACTION STATE (i.e. +1.2 Vdc << +2.3 Vdc) Notes Once activated, inputs are checked for all following control states Guaranteed operation between 0.0 Vdc and +3.3Vdc (damage occurs outside this range)
  • Page 52 Model 2000S1G2z8 2.8.3.3 Connector J5 Lines 3, 4: Supplies +3.3 Vdc via a 10kOhm pull-up resistor Lines 1-4: Guaranteed operation up to +30 Vdc Lines 3, 4: 0 Vdc or +3.3 Vdc TTL Inputs & OD Outputs: Guaranteed operation up to +5 Vdc...

  • Page 53: Switch Breakout Board (A67)

    Model 2000S1G2z8 2.8.3 Switch Breakout Board (A67) 2.8.3.1 Connector J9 Indicate a range representing a NO ACTION STATE (i.e. +1.2 Vdc << +2.3 Vdc) Notes Once activated, inputs are checked for all following control states Guaranteed operation between 0.0 Vdc and +3.3Vdc (damage occurs outside this range)
  • Page 54 Model 2000S1G2z8 2.8.3.3 Connector J5 Lines 3, 4: Supplies +3.3 Vdc via a 10kOhm pull-up resistor Lines 1-4: Guaranteed operation up to +30 Vdc Lines 3, 4: 0 Vdc or +3.3 Vdc TTL Inputs & OD Outputs: Guaranteed operation up to +5 Vdc...
  • Page 55 Model 2000S1G2z8 2.8.4 Switch Breakout Board (A68) 2.8.4.1 Connector J9 Indicate a range representing a NO ACTION STATE (i.e. +1.2 Vdc << +2.3 Vdc) Notes Once activated, inputs are checked for all following control states Guaranteed operation between 0.0 Vdc and +3.3Vdc (damage occurs outside this range)

  • Page 56: Fault Definition

    Model 2000S1G2z8 2.8.4.3 Connector J5 Lines 3, 4: Supplies +3.3 Vdc via a 10kOhm pull-up resistor Lines 1-4: Guaranteed operation up to +30 Vdc Lines 3, 4: 0 Vdc or +3.3 Vdc TTL Inputs & OD Outputs: Guaranteed operation up to +5 Vdc...
  • Page 57 Model 2000S1G2z8 Fault Details Drop to Control Inhibit? RF OFF? Line  = Yes Fault Text  = Yes Description (<15 Characters) No Fault   A34A2 J5-32 0x0001 Interlock Interlock   A34A2 J5-31 0x0002 AC Interlock AC Interlock...
  • Page 58 Model 2000S1G2z8 Fault Details Drop to Control Inhibit? RF OFF? Line  = Yes Fault Text  = Yes Description (<15 Characters) J5-16 0x0210 Amp A29 Amplifier Fault, Module A29  0x0211 Amp A30 Amplifier Fault, Module A30  J5-17...
  • Page 59 Model 2000S1G2z8 Fault Details Drop to Control Inhibit? RF OFF? Line  = Yes Fault Text  = Yes Description (<15 Characters) J5-24 0x040c 1036 Therm A25 Thermal Fault, Module A25   J5-25 0x040d 1037 Therm A26 Thermal Fault, Module A26 ...

  • Page 60: No-Fault Control Actions

    Model 2000S1G2z8 2.9.1 No-Fault Control Actions This section describes all no-fault actions taken by the controls system and their sources. Use the Control Line column to define what active control line generates the fault or use the text Internal for an internally generated fault from the control system (i.e., Internal 485 bus error).

  • Page 61: 2.10 Remote Control Interfaces

    Model 2000S1G2z8 2.10 REMOTE CONTROL INTERFACES This section describes remote operation of the amplifier using the provided General Purpose Interface Bus (GPIB), RS-232 serial port, fiber-optic serial ports, Universal Serial Bus (USB), and Ethernet port. All ports are always active; however, only one port may be used at a time.

  • Page 62: Fiber-Optic Serial Communications

    Core Size: 50um (minimum) to 200um (recommended) Connector Type: This port can be used in conjunction with a serial to fiber-optic or USB to fiber-optic interface, such as an AR IF7001 USB to Fiber-Optic interface. *NOTE: The IF7001 device uses SMA connectors, a fiber-optic cable is needed with ST connectors on one end and SMA connectors on the other.

  • Page 63: Ethernet Communications

    Once installed, the DeviceInstaller™ utility will scan the network and find all connected Lantronix Ethernet devices. This list of found devices will include any connected AR Ethernet devices. By selecting one of the connected devices from the list, its IP address and subnet mask can be changed along, with several other settings.

  • Page 64: Power On/Off

    Model 2000S1G2z8 2.13.1 Power On/Off This command controls the power state. No other command will be accepted until the POWER:ON command has been issued. It is good practice to wait a minimum of two (2) seconds before polling the status after issuing the POWER:ON command.

  • Page 65: Power Indicator Frequency

    Model 2000S1G2z8 2.13.5 Power Indicator Frequency This command sets the current frequency used to correct the forward and reverse power indicators shown on the display. The correction factors used by this feature are set from the factory and stored in non-volatile memory.

  • Page 66: Alc Mode

    Model 2000S1G2z8 2.13.7 ALC Mode This command sets the mode of the Automatic Leveling Control (ALC) feature to either a default mode (MANUAL) or a user-configurable mode (ALC INT). In the default mode (MANUAL), the ALC Detector Gain, ALC Response, and ALC Threshold settings do not affect the operation of the ALC feature because factory settings are used instead.

  • Page 67: Alc Response Setting Adjust

    Model 2000S1G2z8 2.13.10 ALC Response Setting Adjust This command sets the ALC response setting. Adjusting this setting changes the ALC’s response time when reacting to a detected increase in the RF Output that exceeds the ALC Threshold Level. LEVEL:RESP<resp setting>...

  • Page 68: Machine State Query

    Model 2000S1G2z8 2.13.13 Machine State Query This command queries the RF gain, detector gain, ALC threshold, and ALC response time. MSB? Query: RF<space>GAIN=<rf_gain>,DT<space>GAIN=<det_gain>,THRES=<alc_th Response Format: resh>,RESP=<resp><LF> The RF Gain setting (0-100%), padded with leading spaces to be 3 characters <rf_gain>: <det_gain>:...
  • Page 69 Model 2000S1G2z8 Each hexadecimal character represents a 4-bit binary number, allowing for a total of 16 binary flags that can be used to indicate various states of the amplifier. The definition of what each bit of information represents can be found in the Amplifier State Response Table below. For help converting the ASCII characters into binary bits, see the Hex Character to Binary Bits table.

  • Page 70: Forward Power Query

    Model 2000S1G2z8 2.13.15 Forward Power Query This command queries the internally detected forward power (values are corrected and linearized). FPOW? Query: FPOW=<power><LF> Response Format: The detected forward power (0-99999) in Watts (value is always five <power>: characters, padded with spaces).

  • Page 71: Faults Query

    Model 2000S1G2z8 2.13.19 Faults Query This command queries information about a currently active fault. FSTA? Query: FSTA=<space><status><LF> Response Format: A hexadecimal number (0000 to FFFF), padded with zeros to always be 4 <status>: characters wide. Example: To query the fault status, send the following command: FSTA?<LF>...

  • Page 72: Read Fault Log Count

    Model 2000S1G2z8 2.13.22 Read Fault Log Count Use this command to query the total number of faults currently stored in the fault log. FSTA:LOG:COUNT? Query: <count><LF> Response Format: <count>: A decimal number between 0 and 200 To query the fault log count, send the following command: Example: FSTA:LOG:COUNT?<LF>...

  • Page 73: Alc Board Firmware Query

    Model 2000S1G2z8 2.13.25 ALC Board Firmware Query This command queries the firmware of the ALC board assembly. *ALC? Query: ALC_SW_REV<revision><LF> Response Format: The revision of the ALC Board. <revision>: Example: To query the ALC Board firmware revision, send the following command: *ALC?<LF>...

  • Page 74: System Serial Number Query

    Model 2000S1G2z8 2.13.28 System Serial Number Query This command queries the serial number of the system. Query: <number><LF> Response Format: The serial number of the amplifier (6 to 8 characters). <number>: Example: To query the serial number, send the following command: SN?<LF>...

  • Page 75: Theory Of Operation

    3. THEORY OF OPERATION INTRODUCTION The Model 2000S1G2z8 RF amplifier consists of a 1–2.8 GHz RF amplifier assembly. The RF amplifier assembly consists of a Pre-Amplifier (Pre-Amp), one (1) high power Quadrature-Coupled Amplifier (Quad Amp) used as a driver, (1) 2-Way Splitter, (2) high power Quad amps, (2) 4-way Splitters, (8) additional high...

  • Page 76: A3, A5-A6, A9-A16, And A25-A56 Quad Amp, High Power

    Model 2000S1G2z8 3.2.2 A3, A5-A6, A9-A16, and A25-A56 Quad Amp, High Power The power module operates on a dual supply of VGG = -8V and VDD = +24V, with a VDD draw of 11.5 amps and VGG draw below 0.1 amps. Power-on sequence is to apply VGG first, and then VDD, reversing this sequency for power-off.

  • Page 77: A62 Dual Directional Coupler

    Model 2000S1G2z8 3.2.7 A62 Dual Directional Coupler The 63 dB Dual Directional Coupler is connected to the output of the 4-way combiner. The coupler monitors the forward and reflected power. A separate set of isolated coupler ports provide the forward and reverse sample ports.

  • Page 78: A63 Alc Board (Schematic 10051819,10051526)

    Model 2000S1G2z8 3.4.2 A63 ALC Board (Schematic 10051819,10051526) This section describes the operation of the level control board. The level control board performs the following functions: • Provides automatic level control of the amplifier’s output when the amplifier is placed in the ALC mode.

  • Page 79: Maintenance

    4. MAINTENANCE GENERAL MAINTENANCE INFORMATION The Model 2000S1G2z8 requires very little maintenance since it is a relatively simple instrument. It is built with etched circuit wiring and solid-state devices that will ensure long, trouble-free life; however, should trouble occur, special care must be taken in servicing to avoid damage to the devices or the etched circuit board.

  • Page 80: Troubleshooting

    GaN HEMTs and other ESD-sensitive devices. Troubleshooting the Model 2000S1G2z8 in a logical manner can speed the solution to a problem. The settings of potentiometers (pots), capacitors (caps), or other variables should not be disturbed until other problems have been eliminated.

  • Page 81: General - Reading Faults

    If the fault does not clear with the RF drive off, some other problem exists in the amplifier. The digital control panel of the 2000S1G2z8 indicates the output power from the 2000S1G2z8 and the power reflected back to it. If the reflected power is very high, with respect to the forward power, this could indicate that the output coax cable is defective or that the load being driven has a high VSWR.

  • Page 82: Interlock Fault (Schematic 10051819,10051526)

    RF energy when these doors are opened. NOTE: The Model 2000S1G2z8 is shipped with a mating connector, which has a jumper between Pins 1 and 8 and 10 and 14, installed in the rear panel interlock connector. The unit will not operate unless the interlock circuit is closed.

  • Page 83: Amplifier Faults (Schematics 10051819,10051526)

    Model 2000S1G2z8 4.3.6 Amplifier Faults (Schematics 10051819,10051526) 1. The individual fault outputs for the A3, A5, A9-A16 Driver Modules, and the A25-A56 Final Modules are sensed on the Switch Breakout Assemblies A64A2 through A68. A64A2 - J5, Pins 9,11,13,15 A65 – J5, Pins 9,10, 12-19...

  • Page 84: Typical Response @ -20 Dbm Input

    10051819,10051526) 1. The Model 2000S1G2z8’s typical gain response at -20 dBm input and 0 dBm input is shown in Figures 4- 1 and Figure 4-2. The actual gain may vary considerably from that shown in these figures but should be ≥...

  • Page 85: Typical Response @ 0 Dbm Input

    Model 2000S1G2z8 Figure 4-2. Typical Response at 0 dBm Input Rev A...
  • Page 86 Model 2000S1G2z8 Rev A...

  • Page 87: Appendix A. Installing Software Upgrades

    Appendix A. Installing Software Upgrades The 2000S1G2z8 has the capability to upgrade software. The first step that should be taken is to power-down the unit from the front panel. 1. Go to the AR website and download the AR Firmware Upgrade Utility along with the model specific upgrade file for the device being upgraded.
  • Page 88 Model 2000S1G2z8 Rev A...
  • Page 89 These modules are not field-repairable and should never be opened outside of AR’s Microelectronics Lab. The modules in these product lines have a security label on two sides of the modules between the housing and lid/cover. If the security label is removed and or cut, the warranty of the module will be voided.

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