AR 350S1G6A Series Operating And Service Manual
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AR 350S1G6A Series Operating And Service Manual

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Operating and
Service Manual
350S1G6A
Model
10047718
Part Number
Serial Number
EXPORT CONTROLLED DATA.
These commodities, technology or software are controlled for export in accordance with the U.S. Export
Administration Regulations. Diversion contrary to U.S. law is prohibited.
160 School House Road, Souderton, PA 18964 • 215-723-8181 • Fax 866-859-0582 • www.arworld.us

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  • Page 1 Operating and Service Manual 350S1G6A Model 10047718 Part Number Serial Number EXPORT CONTROLLED DATA. These commodities, technology or software are controlled for export in accordance with the U.S. Export Administration Regulations. Diversion contrary to U.S. law is prohibited. 160 School House 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 ....................ii GENERAL INFORMATION ................1 General Description ....................1 Specifications ......................1 Power Supplies ....................... 1 Protection Circuits ....................2 Installation ......................2 1.5.1 Location ........................2 1.5.2 AC Primary Power Wiring Guidelines ..............2 OPERATING INSTRUCTIONS ................
  • Page 16 Model 350S1G6A 2.6.6.13 Faults (350S1G6A) ..................24 2.6.6.14 Operating Hours (RF On) ................25 2.6.6.15 Operating Hours (Power On) ................. 25 2.6.6.16 AC Power-On Defaults .................. 26 THEORY OF OPERATION ................27 Introduction ......................27 RF Amplifier Operation ..................27 3.2.1 A1 Pre-Amp (Schematic 10035953) ..............
  • Page 17 Model 350S1G6A Typical Quad Amp Response ................40 Typical A1 Preamplifier Response ............... 40 TABLES RS-232 Port Settings .................... 14 RS-232 (DCE) Port Pinout Diagram DB-9 Female..........14 Fiber-Optic Serial Port Settings ................15 Relationship between DCP Controls and Remote Communications ....17...

  • Page 19: General Information

    Protection is provided by DC current limiting, over-temperature shut down and RF power limiting. • SPECIFICATIONS Refer to the AR RF/Microwave Instrumentation Data Sheet at the end of this section for detailed specifications. POWER SUPPLIES The Model 350S1G6A contains four switching power supplies. The input voltage range to the power supplies is 200–260 VAC, 50-60Hz, selected automatically.

  • Page 20: Protection Circuits

    Model 350S1G6A PROTECTION CIRCUITS Features incorporated into this unit include RF output level protection circuits, thermal protection circuits, and internal DC level sensing and monitoring circuits that sense the voltage on each of the final and driver amplifier modules. There is protection for the AC main circuit. Both switching supplies are short circuit protected.
  • Page 21 Model 350S1G6A The following table identifies screw color and function. Pay special attention to torque requirements. Terminal Conductor Green Hex Head Screw Equipment grounding conductor White Screw Grounded circuit conductor, Neutral Brass/Black Screw Ungrounded circuit conductor, Line Tighten terminal screws to 18 lb-in (2.1 N-m) of torque. Tighten assembly screws to 10 lb-in (1.1 N-m) of torque.
  • Page 22 Model 350S1G6A Rev C...
  • Page 23 U.S. Export Administration Regu- 488 format, RS232 hardwire and fiber optic, lations. Diversion contrary to U.S. law is pro- USB and Ethernet. The buss interface connect- hibited. AR RF/Microwave Instrumentation 160 School House Rd Souderton, PA 18964 215-723-8181 For an applications engi- neer call:800.933.8181...
  • Page 24 56.1 x 173 x 82.3 cm accommodate customer equipment. (420 lbs) 22.1 x 68 x 32.4 in 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...

  • Page 25: Operating Instructions

    2. OPERATING INSTRUCTIONS GENERAL The Model 350S1G6A is a self-contained, broadband microwave amplifier designed for laboratory applications where instantaneous bandwidth, high gain, and moderate power output are required. A GAIN control, which is conveniently located on the unit’s front panel, can be used to decrease the amplifier’s gain by 10 decibels (dB) or more.

  • Page 26: Power Switch

    Model 350S1G6A 2.2.2 POWER Switch The momentary POWER switch turns the main power to the amplifier on and off. The status of the green light-emitting diode (LED) in the switch indicates whether the amplifier’s power is on or off. The main power supply fans are active when power is on.

  • Page 27: Main Power

    Model 350S1G6A 2.2.3 Main Power The Main Power circuit breaker is located on the rear panel of the amplifier. Figure 2-2. Rear Panel Features Item Title Function RF INPUT (rear connector versions) Type N female connector RF OUTPUT Type 7/16 female connector Safety Interlock Type 15-pin sub-D IEEE-488...

  • Page 28: Rf On/Off

    Model 350S1G6A 2.2.4 RF ON/OFF The RF ON/OFF touch screen button toggles the amplifier from a Standby to an Operate mode. The status of the function is indicated on the display as RF ON or RF OFF. In the RF ON state, RF output is enabled according to control settings and amplifier RF input.

  • Page 29: Touch Panel Display Menu Map

    Model 350S1G6A Figure 2-3. Touch Panel Display Menu Map Values shown on screens are for illustration only. Rev C...

  • Page 30: Rf Gain Control

    Model 350S1G6A 2.3.1 RF GAIN Control The RF GAIN control, which has a minimum of 10dB of range, is used to adjust the input attenuator of the preamplifier-leveler module. This control simply adjusts the output power level for a fixed input power level. To adjust the RF Gain, press the Select button from the main menu and then press the RF Gain button in the subsequent menu.

  • Page 31: Amplifier Operation

    Model 350S1G6A AMPLIFIER OPERATION 2.5.1 Local Operation 1. Connect the input signal to the unit’s RF INPUT connector. The input signal level should be 0dBm maximum. 2. Connect the load to the unit’s RF OUTPUT connector. 3. Set the REMOTE/LOCAL switch to LOCAL. 4.

  • Page 32: Setting The Ieee-488 (Gpib) Address

    Model 350S1G6A 2.6.1.1 Setting the IEEE-488 (GPIB) Address The IEEE-488 device address can be set to any number between 1 and 30. This selection is made by navigating to the GPIB address selection screen. To get there from the Main Menu, touch the User menu button followed by the I/O menu button and finally the GPIB menu button.

  • Page 33: Fiber-Optic Serial Communication

    This port can be used in conjunction with either an AR model IF7000 RS-232 to Fiber-Optic Interface (1200 to 9600 baud only) or an AR model IF7001 USB to Fiber-Optic Interface (19200 baud only). Note that these devices use SMA connectors so a fiber-optic cable is needed with ST connectors on one end and SMA connectors on the other.

  • Page 34: Ethernet Communication

    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 a number of other settings.

  • Page 35: Power On/Off

    Model 350S1G6A The development of application programs requires an understanding of the operation of the amplifier as well as the intended application. An application program on the computer/controller should issue only one character string (command or query) at a time. After each functional command is issued, the amplifier’s status should be checked to ensure that the command has been properly executed.

  • Page 36: Rf On/Off

    Model 350S1G6A 2.6.6.2 RF On/Off This command controls the RF on/off state of the amplifier. Syntax: RF:x Parameters: State(x): OFF = power off ON = power on Response Format: None (No query for this command) Example: To turn the RF on, send the following command: RF:ON<LF>...

  • Page 37: Level Adjust

    Model 350S1G6A 2.6.6.5 Level Adjust This command sets the RF Gain, ALC Detector Gain, ALC Threshold, and ALC Response Time. Syntax: LEVEL:xy Parameters: Parameter(x): GAIN = RF Gain DET = ALC Detector Gain THR = ALC Threshold RESP = ALC Response Time Value(y): For RF Gain, ALC Detector Gain, and ALC Threshold: 0 = Minimum...

  • Page 38: Identity

    = model designation n = firmware revision Example: To get the identity of the amplifier, send the following command: *IDN?<LF> Response: AR-RF/MICROWAVE-INST,MODEL,1.0<LF> 2.6.6.7 IO Board Firmware Revision Query to get the firmware revision of the I/O Board. Syntax: *IOB?

  • Page 39: Machine State

    Model 350S1G6A 2.6.6.8 Machine State This query reads the RF gain, detector gain, ALC threshold, and ALC response time of the amplifier. Syntax: MSB? Parameters: None Query only (always requires a ? character) Response Format: RF<space>GAIN=x, DT<space>GAIN=x, THRES=x, RESP=y<LF> Value(x): For RF Gain, Detector Gain, and ALC Threshold: 0 = Minimum 100 = Maximum...

  • Page 40: State

    Model 350S1G6A 2.6.6.9 State Query to find the state of the amplifier. Syntax: STATE? Parameters: None Response Format: STATE=<space>xyza<LF> Where: x, y, z, and a are each an ASCII character representing a hexadecimal character. They can be 0 to 9 or A to F. Each hexadecimal character represents a 4-bit binary number.

  • Page 41: Forward Power

    Model 350S1G6A Example: To read the state, send the following query. STATE?<LF> Response: STATE=<space>8301<LF> (Remote Mode, Power On, RF OFF, and Manual Mode) 2.6.6.10 Forward Power Query to get the forward power. Syntax: FPOW? Parameters: None Response Format: FPOW=x<LF> Where: x = 0 to 99999 Values are corrected and linearized.

  • Page 42: Rf Gain

    Model 350S1G6A 2.6.6.12 RF Gain Query to get the RF gain. Syntax: RFG? Parameters: None Response Format: RFG=<space>x<LF> Where: x = 0000 to 0100 Example: To find out the RF gain of the amplifier, send the following query: RFG?<LF> RFG=<space>0075<LF> Response: (75% Gain) 2.6.6.13...

  • Page 43: Operating Hours (Rf On)

    Model 350S1G6A 2.6.6.14 Operating Hours (RF On) Query to get the RF On operating hours. Syntax: Parameters: None Response Format: OH=x<LF> Where: x = 0 to 100000 Units are Hours. Values can be up to six digits in length. Leading zeros are read as spaces.

  • Page 44: Ac Power-On Defaults

    Model 350S1G6A 2.6.6.16 AC Power-On Defaults Default settings that are applied at AC mains power-on can be changed by adding the following prefix to select commands. Syntax: DEFAULT: Compatible commands: Level Adjust LEVEL:GAIN LEVEL:DET (Not available on all models) LEVEL:THR (Not available on all models) LEVEL:RESP (Not available on all models)

  • Page 45: Theory Of Operation

    3. THEORY OF OPERATION INTRODUCTION The Model 350S1G6A RF amplifier consists of a 0.7–6.0 GHz RF amplifier assembly. The RF amplifier assembly consists of a Pre-Amplifier (Pre-Amp), a Quadrature-Coupled Amplifier (Quad Amp) used as a driver, a Two-way splitter, (2) Four-Way Splitters, (6) Quad Amplifiers used as Drivers, (6) Four-Way Splitters, (24) Quad amplifiers, (2) 12-way combiners, a Two-Way Combiner, and Directional Coupler.

  • Page 46: A2, A8-A15 Driver Amps (Schematics 10035763, 10039088, 10035766)

    Model 350S1G6A 3.2.2 A2, A8-A15 Driver Amps (Schematics 10035763, 10039088, 10035766) The Driver Amp RF section is assembled on thin film substrates and the bias control and fault circuitry is assembled on a multi-layer printed circuit board. It has two (2) GaN amplifier sections. Each section is input and output DC isolated by coupling capacitors.

  • Page 47: A59 Dual Directional Coupler

    Model 350S1G6A 3.2.8 A59 Dual Directional Coupler A59 is a 50 dB dual directional coupler which is connected to the output of the A58 Two-way combiner. The coupler monitors the forward and reflected power. 3.2.9 Detector Assembly The two detectors (DT1, DT2) are connected to the forward and reflected coupled ports of A59. The DC outputs are fed to the A66 ALC board which uses these signals to protect the amplifier, display forward and reverse power, and to provide leveled RF output.

  • Page 48: Control System

    Model 350S1G6A CONTROL SYSTEM 3.4.1 A60A1, A60A3 Display Assembly, 4.3” LCD (Schematics 10029679, 10030013) The A60 Control Panel Assembly consists of two 16-bit microcontrollers and about nine other ICs that monitor and indicate the status of the amplifier. Power is supplied using only a single 5-volt power supply. The board offers the following: Feature Quantity...

  • Page 49: Maintenance

    Shipping instructions are as follows. To return an item, contact AR Customer Service for an RMA number and shipping instructions. Returns from outside the United States are not permitted without prior authorization. If shipping from outside of the United States, closely follow all directions on the RMA form for return shipping and marking.

  • Page 50: Troubleshooting

    Model 350S1G6A TROUBLESHOOTING CAUTION: The microwave transistors used in the Model 350S1G6A amplifier are GaN HEMT transistor. These devices are very reliable when installed in a suitable circuit, but they can be easily damaged by improper troubleshooting or handling techniques. The gate junctions of the GaN HEMTs have a high input impedance and are susceptible to static damage or damage due to the use of an ungrounded soldering iron.

  • Page 51: General - Reading Faults

    Model 350S1G6A 4.3.1 General - Reading Faults The Model 350S1G6A incorporates relatively simple fault detection circuitry, which makes use of the digital display panel to alert the user or technician which component(s) need service. Use of these indications can usually expedite troubleshooting of the amplifier. Most faults can be immediately determined down to the assembly level.

  • Page 52: Interlock Fault (Schematic 10047656)

    Model 350S1G6A 4.3.4 Interlock Fault (Schematic 10047656) The Model 350S1G6A is equipped with an interlock connector, which is located on the rear panel. The interlock circuit can be used to sense the openings of doors to screen rooms, test chambers, and so forth, and to turn off RF energy when these doors are opened.

  • Page 53: Amplifier Faults (Schematics 10047656 And 10039045)

    Model 350S1G6A 4.3.6 Amplifier Faults (Schematics 10047656 and 10039045) 1. The fault outputs for the 31 Quadrature-Coupled Amplifiers (Quad Amps) (A2, A8, A10-A13, A15, A24- A27, A32-A47, A52-A55) are sensed on the A60 Control/Fault Board, J5, Pins 9 through 13 and on the A64 and A69 Switch Breakout Boards, Pins 9 through 27.

  • Page 54: Low Or No Power Output (Rf Test) (Schematic 10047656)

    Model 350S1G6A 7. Check the voltages on the feed caps on the A8, A10-A13, A15, A24-A27, A32-A47, A52-A55 quad amps. Troubleshoot any incorrect voltages. +25.7 V ±0.5 V -5 V ±0.3 V logic high (no fault) 4.3.9 Low or No Power Output (RF Test) (Schematic 10047656) NOTE: The DC Tests specified in Section 4.3.8 should be completed before conducting the RF tests specified in the following sections.

  • Page 55: Typical Response: Input A3 To Quad Final Module Rf Output

    Model 350S1G6A 2. Remove the coaxial cable from the output of the A2 connector to the input of the A3 Two-Way Splitter. The typical Gain and Phase response from the input of the A3 Two-Way Splitter to the RF Output of a Quad Power Module is shown in Figure 4-2.

  • Page 56: Typical Four-Way Splitter Insertion Loss

    Model 350S1G6A 4. A typical Four-Way Splitter Insertion Loss is shown in Figure 4-4. The unused port must be terminated when checking the insertion loss. -5.5 -6.0 -6.5 -7.0 IL J4 IL J3 -7.5 IL J2 IL J1 -8.0 RL J5 -8.5 -9.0 -9.5...

  • Page 57: Typical Twelve-Way Combiner Insertion Loss

    Model 350S1G6A 5. A typical Sixteen-Way Combiner Insertion Loss and Combined Port Return Loss is shown in Figure 4-5. The unused port must be terminated when checking the Insertion Loss. NOTE: The Return Loss of the Twelve-Way Combiner’s combined output port is typically better than 17dB (see Figure 4-6).
  • Page 58 Model 350S1G6A 6. If the response of the output stages normal, check the response of the A2 Quad Amp (see Figure 4-7). Figure 4-7. Typical Quad Amp Response NOTE: The A1 Preamplifier’s response may differ considerably, particularly in flatness, from the typical response shown in Figures 4-8.
  • Page 59 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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