BEI Electronics 7EPTX-STX60 60W LPFM Broadcast Transmitter User Manual Exhibit D Users Manual per 2 1033 c3

BEI Electronics, LLC 60W LPFM Broadcast Transmitter Exhibit D Users Manual per 2 1033 c3

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7EPTX STX60 User Manual

Exhibit D Users Manual per 2 1033 c3

Broadcast Electronics 4100 North 24th Street, Quincy, Illinois 62305 USA • Phone (217) 224-9600 • Fax (217) 224-9607 • www.bdcast.com • bdcast@bdcast.com STXe – 60 Watt FM Exciter Operation Manual 597-4062 Revision A July 23, 2013

i ©2013 Broadcast Electronics Broadcast Electronics Product Warranty (Two-Year Limited) BE hereby warrants all new products manufactured by BE against any defects in material or workmanship at the time of delivery thereof, or that develop under normal use within a period of two (2) years from the date of shipment. BE reserves the right to repair equipment under warranty with new or refurbished equipment or parts. BE’s sole responsibility with respect to any equipment or parts not conforming to this warranty is to replace or repair such equipment upon the return thereof F.O.B. to BE’s factory in Quincy, Illinois, U.S.A. In the event of replacement pursuant to the foregoing warranty, only the unexpired portion of the warranty from the time of the original purchase will remain in effect for any such replacement. This warranty shall exclude the following products, component parts and/or assemblies: (a) Transmitter power output tubes shall only carry the original manufacturers’ or suppliers’ standard warranty in effect on their original shipment date. (b) All computers, computer peripherals, cables, hard disk drives, etc., shall only carry the manufacturers’ or suppliers’ standard warranty in effect on their original shipment date. (c) “Components”, defined as separate and individual parts (e.g. transistors, integrated circuits, capacitors, resistors, inductors, fans, etc), resold by BE from another manufacturer or supplier, shall only carry a 90 day warranty, effective the date of shipment. Any such ‘Components’ being returned for warranty claim must be (1) returned in their original packaging and (2) must be in new, unused condition. BE is unable to process or resolve component defects or performance concerns on components that have been soldered, installed, wired or in any way altered from new their new condition. (d) “Resale Equipment”, defined as equipment purchased from another manufacturer or supplier, then resold by BE, shall only carry such manufacturer’s or supplier’s standard warranty in effect as of the original shipment date. All warranty claims against any and all ‘resale equipment’ sold by BE must be filed directly with the original equipment manufacturer. BE is unable to process or resolve equipment defects or performance concerns on products or services not manufactured by BE. This warranty shall not extend to claims resulting from any acts of God, terrorism, war, defects or failures caused by Purchaser or user abuse or misuse, operator error, or unauthorized attempts to repair or alter the equipment in any way. Under no circumstances shall BE be responsible for indirect, incidental or consequential damages, including, but not limited to transportation costs, non-authorized repair or service costs, downtime costs, costs for substituting equipment or loss of anticipated profits or revenue, incurred by Purchaser, whether based in contract, tort or for negligence or breach of statutory duty or otherwise. The terms of the foregoing warranty shall be null and void if the equipment has been altered or repaired without specific written authorization from BE, or if not installed according to BE’s instruction manuals, including, but not limited to, the absence of proper grounding, surge (TVSS) protection on the AC circuit panel or proper lightning protection/grounding on all output circuits, or if equipment is operated under environmental conditions or circumstances other than those specifically described in BE’s product literature or instruction manual which accompany the equipment. The warranty shall be voided if the product or subassembly is equipped with a tamper seal and that tamper seal is broken. BE shall not be liable for any expense of any nature whatsoever incurred by the original user without prior written consent of BE. The warranty provided herein shall terminate at the end of the period set forth above. This warranty extends only to the original Purchaser and is not transferable. There are no third party beneficiaries of any of the provisions of

ii ©2013 Broadcast Electronics this warranty. If the equipment is described as “used” equipment, it is sold as is and where is and no warranty applies unless authorized in writing. . EXCEPT AS SET FORTH HEREIN, AS TO TITLE AND AS SPECIFICALLY REQUIRED BY LAW, THERE ARE NO OTHER WARRANTIES, OR ANY AFFIRMATIONS OF FACT OR PROMISES BY BE, WITH REFERENCE TO THE EQUIPMENT, OR TO MERCHANTABILITY, FITNESS FOR A PARTICULAR APPLICATION, SIGNAL COVERAGE, INFRINGEMENT, OR OTHERWISE, WHICH EXTEND BEYOND THE DESCRIPTION OF THE EQUIPMENT ON THE FACE HEREOF.

iii ©2013 Broadcast Electronics IMPORTANT INFORMATION EQUIPMENT LOST OR DAMAGED IN TRANSIT When delivering the equipment to you, the truck driver or carriers’ agent will present a receipt for your signature. Do not sign it until you have: 1) Inspected the containers for visible signs of damage and 2) Counted the containers and compared with the amount shown on the shipping papers. If a shortage or evidence of damage is noted, insist that notation to that effect be made on the shipping papers before you sign them. Further, after receiving the equipment, unpack it and inspect thoroughly for concealed damage. If concealed damage is discovered, immediately notify the carrier, confirming the notification in writing, and secure an inspection report. This item should be unpacked and inspected for damage WITHIN 15 DAYS after receipt. Claims for loss or damage will not be honored without proper notification of inspection by the carrier. RF PRODUCT TECHNICAL ASSISTANCE, REPAIR SERVICE, PARTS - Technical assistance is available from Broadcast Electronics by letter, prepaid telephone or E-mail. Equipment requiring repair or overhaul should be sent by common carrier, prepaid, insured, and well protected. If proper shipping materials are not available, contact the RF Technical Services Department for a shipping container. Do not mail the equipment. We can assume no liability for inbound damage, and necessary repairs become the obligation of the shipper. Prior arrangement is necessary. Contact the RF Technical Services Department for a Return Authorization. Emergency and warranty replacement parts may be ordered from the following address. Be sure to include the equipment model number, serial number, part description, and part number. Non-emergency replacement parts may be ordered directly from the Broadcast Electronics stock room at the number shown below. RF TECHNICAL SERVICES Telephone: +1 (217) 224-9617 E-Mail: rfservice@bdcast.com Fax: +1 (217) 224-6258 FACILITY CONTACTS Broadcast Electronics, - Quincy Facility 4100 N. 24th St. P.O. BOX 3606 Quincy, Illinois 62305 Telephone: +1 (217) 224-9600 Fax: +1 (217) 224-6258 General E-Mail: bdcast@bdcast.com Web Site: www.bdcast.com PARTS Telephone: +1 (217) 224-9617 E-Mail: parts@bdcast.com

iv ©2013 Broadcast Electronics RETURN, REPAIR, AND EXCHANGES Do not return any merchandise without our written approval and Return Authorization. We will provide special shipping instructions and a code number that will assure proper handling and prompt issuance of credit. Please furnish complete details as to circumstances and reasons when requesting return of merchandise. All returned merchandise must be sent freight prepaid and properly insured by the customer. MODIFICATIONS Broadcast Electronics, reserves the right to modify the design and specifications of the equipment in this manual without notice. Any modifications shall not adversely affect performance of the equipment so modified.

v ©2013 Broadcast Electronics SAFETY PRECAUTIONS PLEASE READ AND OBSERVE ALL SAFETY PRECAUTIONS ALL PERSONS WHO WORK WITH OR ARE EXPOSED TO POWER TUBES, POWER TRANSISTORS, OR EQUIPMENT WHICH UTILIZES SUCH DEVICES MUST TAKE PRECAUTIONS TO PROTECT THEMSELVES AGAINST POSSIBLE SERIOUS BODILY INJURY. EXERCISE EXTREME CARE AROUND SUCH PRODUCTS. UNINFORMED OR CARELESS OPERATION OF THESE DEVICES CAN RESULT IN POOR PERFORMANCE, DAMAGE TO THE DEVICE OR PROPERTY, SERIOUS BODILY INJURY, AND POSSIBLY DEATH. DANGEROUS HAZARDS EXIST IN THE OPERATION OF POWER TUBES AND POWER TRANSISTORS The operation of power tubes and power transistors involves one or more of the following hazards, any one of which, in the absence of safe operating practices and precautions, could result in serious harm to personnel. A. HIGH VOLTAGE - Normal operating voltages can be deadly. Additional information follows. B. RF RADIATION - Exposure to RF radiation may cause serious bodily injury possibly resulting in Blindness or death. Cardiac pacemakers may be affected. Additional information follows. C. HOT SURFACES - Surfaces of air-cooled radiators and other parts of tubes can reach temperatures of several hundred degrees centigrade and cause serious burns if touched. Additional information follows. D. RF BURNS - Circuit boards with RF power transistors contain high RF potentials. Do not operate an RF power module with the cover removed.

vi ©2013 Broadcast Electronics HIGH VOLTAGE Many power circuits operate at voltages high enough to kill through electrocution. Personnel should always break the primary AC Power when accessing the inside of the transmitter. RADIO FREQUENCY RADIATION Exposure of personnel to RF radiation should be minimized, personnel should not be permitted in the vicinity of open energized RF generating circuits, or RF transmission systems (waveguides, cables, connectors, etc.), or energized antennas. It is generally accepted that exposure to “high levels” of radiation can result in severe bodily injury including blindness. Cardiac pacemakers may be affected. The effect of prolonged exposure to “low level” RF radiation continues to be a subject of investigation and controversy. It is generally agreed that prolonged exposure of personnel to RF radiation should be limited to an absolute minimum. It is also generally agreed that exposure should be reduced in working areas where personnel heat load is above normal. A 10 mW/cm2 per one tenth hour average level has been adopted by several U.S. Government agencies including the Occupational Safety and Health Administration (OSHA) as the standard protection guide for employee work environments. An even stricter standard is recommended by the American National Standards Institute which recommends a 1.0 mW/cm2 per one tenth hour average level exposure between 30 Hz and 300 MHz as the standard employee protection guide (ANSI C95.1-1982). RF energy must be contained properly by shielding and transmission lines. All input and output RF connections, such as cables, flanges and gaskets must be RF leak proof. Never operate a power tube without a properly matched RF energy absorbing load attached. Never look into or expose any part of the body to an antenna or open RF generating tube or circuit or RF transmission system while energized. Monitor the tube and RF system for RF radiation leakage at regular intervals and after servicing. HOT SURFACES The power components in the transmitter are cooled by forced-air and natural convection. When handling any components of the transmitter after it has been in operation, caution must always be taken to ensure that the component is cool enough to handle without injury.

vii ©2013 Broadcast Electronics Table of Contents 1 Overview.............................................................................................................................. 1 2 Front Panel Features ............................................................................................................ 2 2.1 FAILSAFE ............................................................................................................................. 2 2.2 AUDIO ................................................................................................................................. 2 2.3 EXC DRV .............................................................................................................................. 2 2.4 CNTL.................................................................................................................................... 3 2.5 PA ....................................................................................................................................... 3 2.6 PS ........................................................................................................................................ 3 2.7 VSWR .................................................................................................................................. 3 2.8 TRANSMITTER CONTROL CENTER ......................................................................................... 3 3 Transmitter Control Center ................................................................................................. 4 3.1 Contrast Control .................................................................................................................. 4 3.2  Left Button ...................................................................................................................... 4 3.3  Right Button .................................................................................................................... 4 3.4  Up Button ........................................................................................................................ 4 3.5  Down Button .................................................................................................................... 5 3.6  Return Button ................................................................................................................. 5 4 Web Page .......................................................................................................................... 11 5 SNMP ................................................................................................................................. 13 5.1 Authentication................................................................................................................... 13 5.2 Objects .............................................................................................................................. 14 6 Backup Control Modes ...................................................................................................... 18 6.1 Emergency Control Mode .................................................................................................. 18 6.2 Standby System Control and Exciter ................................................................................... 18 7 Troubleshooting ................................................................................................................ 19 7.1 Event Log .......................................................................................................................... 19 7.2 Standby ............................................................................................................................. 19 7.3 Failsafe .............................................................................................................................. 19 7.4 Mute ................................................................................................................................. 20 7.5 Internal Exciter Diagnostics ................................................................................................ 20 7.6 Power Amplifier Diagnostics .............................................................................................. 20

viii ©2013 Broadcast Electronics Figures Figure 1 – Main Assembly Front Panel ........................................................................................... 2 Figure 2 – Transmitter Control Center ........................................................................................... 4 Figure 3 – Transmitter Control Center Menus Sheet 1 ................................................................... 7 Figure 4 – Transmitter Control Center Manus Sheet 2 ................................................................... 9 Figure 5 – Web Interface Main Page ........................................................................................... 11 Figure 6 – Web Interface Authentication ..................................................................................... 11 Figure 7 – Web Interface PA Page ............................................................................................... 12 Figure 8 – Web Interface Events Page ......................................................................................... 12 Figure 9 – MIB Download ........................................................................................................... 13 Figure 10 – STXe60 System Block Diagram .................................................................................. 23 Tables Table 1 – SNMP Object Access .................................................................................................... 14 Table 2 – Exciter Diagnostics Details ............................................................................................ 20 Table 3 – PA Diagnostics Details .................................................................................................. 20

1 ©2013 Broadcast Electronics Overview 1The STXe FM exciter series is designed to provide a cost effective solution for FM broadcast. Every STXe exciter is tested at the factory for quality and reliability. Technicians will use settings given to sales representatives at the time of purchase. In the absence of this information, the following default settings are used: • Frequency – 98.5 MHz • Operating Mode – FM Only • Total Output Power – Set to model name (1 kW Model - 1000 W, etc.) • Emergency Output Power – 0 W • 100% Modulation – 75 kHz • Pre-emphasis – 75 µs • Pilot Injection – On, 10% • Mono/Stereo Mode - Stereo • Audio Input – AES • AES Injection Level – 100% at -2dBfs • Analog L/R Injection Level – 100% with 3.5 Vpp at 400 Hz • SCA1 Injection – Off, 10% with 3.5 Vpp at 67 kHz • SCA2 Injection – Off, 10% with 3.5 Vpp at 92 kHz • RDS Injection – Off, 10% with 3.5 Vpp at 53 kHz • Real Time Clock – Central Standard Time. Note: The internal real time clock will stop keeping time and reset to 2000-01-01 00:00:00 when the system has no AC power for a few days. This is highly likely when the exciter is shipped. • Ethernet o DHCP - Disabled o I.P. – 10.2.4.110 o Subnet Mask – 255.255.0.0 o Gateway – 10.2.1.1 • Passwords o Chief – 12345678 o User – 22222222 o Operator – 11111111 For installation instruction, please see the STXe FM Exciter Installation and Maintenance Application Guide. A copy can be found in the front of the binder containing this manual that is shipped with all STXe exciters. For electronic copies of any technical documentation please visit http://www.bdcast.com/information-center/ and follow navigation on the left side of the page – authorized login is required for download of technical documents.

2 ©2013 Broadcast Electronics Front Panel Features 2The main assembly front panel contains LED indicators for the system controller, internal exciter, internal power amplifier, and an LCD user interface. Figure 1 – Main Assembly Front Panel 2.1 FAILSAFE The failsafe LED is coupled directly to the failsafe input on the back panel. Green indicates the failsafe is connected for normal operation. If red the failsafe is not connected and RF power will not turn on. 2.2 AUDIO The audio LED indicates the status of the current primary audio source. If an audio peak silence condition is detected, this LED turns red. The LED remains green until a failure is detected. Check the exciter diagnostics for details on what alarms or faults may be active. 2.3 EXC DRV The exciter drive LED indicates the status of any alarms or faults related to the exciter. Green indicates that the exciter has settled into normal operating conditions. Orange indicates an alarm condition. Red shows when the exciter has a fault condition. See Table 2 – Exciter Diagnostics Details in section 7.5 for more information. Note that there is overlap between internal exciter and internal PA status for drive detection. An exciter drive alarm indication may originate from the PA. The exciter must also establish frequency lock as it powers up. These are intended to indicate conditions that prevent full operation whether the conditions are expected or not. Check the exciter and PA diagnostics for details on what alarms or faults may be active. 2 3 5 7 6 4 1 8

3 ©2013 Broadcast Electronics 2.4 CNTL The system control LED shows the status of the system controller. Green indicates normal control operation. Red indicates a loss of communication between the front panel and the system controller. 2.5 PA The power amplifier LED shows status of the internal PA. Green indicates normal power control. Orange indicates an alarm condition. Red indicates a fault and PA shutdown condition. Check PA diagnostics for details on what alarms or faults may be active. 2.6 PS The power supply LED shows the status of the RF power supply module. Green indicates normal operation. Orange indicates a self-reported alarm. Red indicates a determined fault. Check PA diagnostics for details on what alarms or faults may be active in the supply connected to the PA. Note that these power supplies are on the same communications node as the PA they are connected to. A communication fault will illuminate red on both the PA and the PS LEDs. 2.7 VSWR The voltage standing wave ratio LED shows the status of the internal PA output in terms of measured reflected power. Green indicates normal operation into an acceptable load. Orange indicates active foldback protection. Red indicates a fault and shutdown condition. Check PA diagnostics for details on what alarms or faults may be active in the PA. 2.8 TRANSMITTER CONTROL CENTER This front panel LCD interface can be used for control and monitoring of all features in the system. Use the five buttons below the screen to navigate and make modifications. See section 3 - Transmitter Control Center for details on how to use this interface.

4 ©2013 Broadcast Electronics Transmitter Control Center 3Initial system setup after installation requires interfacing with the LCD display and buttons on the front of the main assembly. Once initial setup is complete, almost all configurations accessible on this control center can be modified remotely via Ethernet interfaces. Figure 2 – Transmitter Control Center 3.1 Contrast Control A potentiometer tuning tool can be used to adjust the contrast on the LCD screen if desired. Turning the potentiometer clockwise reduces contrast, and turning it counter-clockwise increases contrast. 3.2  Left Button The context dependent left button performs two primary functions. When navigating between screens it allows a return to the main screen from any other navigation screen. When an editing screen is entered this button moves the cursor one space to the left. 3.3  Right Button The context dependent right button performs two primary functions. When navigating between screens it allows a return to the first screen of the submenu tree. When an editing screen is entered this button moves the cursor one space to the right. 3.4  Up Button The context dependent up button performs various functions. When navigating between screens through the trunk it selects a new submenu tree. After entering a submenu screen it either selects different branches or cycles through options. When an editing screen is entered this button modifies the object located at the cursor. 1 2 3 4 5 6

5 ©2013 Broadcast Electronics 3.5  Down Button The context dependent down button performs various functions. When navigating between screens through the trunk it selects a new submenu tree (in the opposite direction as the up button). After entering a submenu screen it either selects different branches or cycles through options. When an editing screen is entered this button modifies the object located at the cursor. 3.6  Return Button The context dependent down button performs two primary functions. When navigating between screens through the trunk it enters the next level in the menu. This can lead to submenu screens, options selection, or field editing. Once an editing function has been made this saves the field and returns to the first screen in the submenu tree.

6 ©2013 Broadcast Electronics

7 ©2013 Broadcast Electronics Figure 3 – Transmitter Control Center Menus Sheet 1

©2013 Broadcast Electronics Figure 4 – Transmitter Control Center Manus Sheet 2

11 ©2013 Broadcast Electronics Web Page 4The STXe comes standard with a built in HTTP web server. To load the web page, simply direct a standard web browser to the IP assigned to the Ethernet port on the system. Figure 5 – Web Interface Main Page The basic settings and monitoring fields in the system are shown above in Figure 5 – Web Interface. To cycle through the active user selection click the “Current User” link in the upper left. To access PA monitoring information or the event log click on “PA STATUS” or “EVENT LOG” links respectively. These can be seen in Figure 7 and Figure 8. Posting any settings to the exciter requires an appropriate login. The graphic button objects are disabled for user types that do not have permission to modify exciter settings. Once an adequate user selection is made, the buttons can be clicked to display any additional options. When the change is attempted a dialog box will pop up, which can be seen in Figure 8. Simply enter the active user type and the correct 8-digit numerical password that goes with it to save the setting. Note: password entry times out after 10 seconds and must be entered on the next new settings change attempt. Valid login is remembered for the active session. Figure 6 – Web Interface Authentication

12 ©2013 Broadcast Electronics Figure 7 – Web Interface PA Page Figure 8 – Web Interface Events Page To check the current web page version, simply point a web browser to [IP Address]/rev.html

13 ©2013 Broadcast Electronics SNMP 5Simple Network Management Protocol is a member of the Internet Protocol standard communications suite. The STXe comes with a built-in SNMP agent (SNMP version 2c) for handling all request types included in the protocol – GET, SET, GETNEXT, and GETBULK. The appropriate MIB for the version of SNMP agent installed on the exciter must be downloaded from the exciter itself. As with any MIB, this ASCII text file completely defines the data structure within the agent. The MIB also provides textual descriptions for every accessible object. To download the file access the web interface using a standard web browser. Right click on the “SNMP MIB File” link and click “Save link as…”, refer to Figure 9. Save a local copy of the MIB file wherever desired for use in an SNMP manager application. Alternatively, click the link and navigate to the file in the browser. Right click anywhere in the viewing space and click “Save as…” Simply remove the .txt extension (leaving only the .mib extension) and save at the desired location. Figure 9 – MIB Download An SNMP manager application must be utilized in order to access the interface. Integrating a manager into custom station automation programs provides countless possibilities. Alternatively, various third party MIB browser GUI applications are available for free download; however Broadcast Electronics does not endorse any specific application. Simply direct the manager to the Ethernet port for communication across a network. 5.1 Authentication Data is accessible by using the correct community strings for the desired login level. The formula for these strings is a combination of the login type – chief, user, or operator –, a delimitating ‘+’ character, and the 8 digit numerical password associated with that login type. For example, “chief+12345678” in both the read community and write community passes authentication and allows read and write to essentially every object in the MIB with the appropriate max-access type. User and Operator login types provide more strict control over what settings can be modified and commands issued in the system.

14 ©2013 Broadcast Electronics 5.2 Objects The SNMP interface utilizes tables wherever it makes sense to communicate data in an indexed fashion. To accommodate a scalable transmitter product design almost all PA data is structured as tables by using the PA number as the index. This works by appending “.1” to the object indicating the single 60W Pa in the system. Note that a normal “leaf” node is accessed by appending “.0” as in …38118.2.2.2.0 for system forward power. Table 1 – SNMP Object Access Object ID User Access Operator Access Chief Access transmitterType Read Read Read/Write serialNumber Read Read Read activeStandby Read Read Read primarySecondary Read Read Read frequency Read Read Read/Write time Read Read Read/Write date Read Read Read/Write macAddress Read Read Read useDHCP Read Read Read/Write keyTypeSNMPv3 Read Read Read/Write requireSNMPv3 Read Read Read/Write requireHTTPDigestAuth Read Read Read/Write ipAddress Read Read Read subnetMask Read Read Read gatewayAddress Read Read Read staticIPAddress Read Read Read/Write staticSubnetMask Read Read Read/Write staticGatewayAddress Read Read Read/Write userPassword Read/Write Read/Write Read/Write operatorPassword None Read/Write Read/Write chiefPassword None None Read/Write transmitterIsOn Read Read Read systemForwardPower Read Read Read systemReflectedPower Read Read Read transmitterOnOff Read Read/Write Read/Write currentPowerMode Read Read Read autoPowerMode Read Read Read defaultPowerMode Read Read Read/Write setpointCurrent Read Read/Write Read/Write setpointFM Read Read/Write Read/Write setpointFmDigital Read Read/Write Read/Write setpointDigital Read Read/Write Read/Write setpointCurrentMin Read Read Read setpointFMMin Read Read Read setpointFmDigitalMin Read Read Read setpointDigitalMin Read Read Read setpointCurrentMax Read Read Read setpointFMMax Read Read Read setpointFmDigitalMax Read Read Read setpointDigitalMax Read Read Read

15 ©2013 Broadcast Electronics Object ID User Access Operator Access Chief Access inputSelect Read Read Read/Write peakModulationDeviation Read Read Read/Write preemphasis Read Read Read/Write monoStereoMode Read Read Read/Write modulationPeakHold Read Read Read stereoGeneratorPeakHold Read Read Read compositeAdjust Read Read Read/Write compositeDB Read Read Read compositePeakHold Read Read Read analogLAdjust Read Read Read/Write analogLDB Read Read Read analogLPeakHold Read Read Read analogRAdjust Read Read Read/Write analogRDB Read Read Read analogRPeakHold Read Read Read sca1OnOff Read Read Read/Write sca1Adjust Read Read Read/Write sca1DB Read Read Read sca2OnOff Read Read Read/Write sca2Adjust Read Read Read/Write sca2DB Read Read Read rdsOnOff Read Read Read/Write rdsAdjust Read Read Read/Write rdsDB Read Read Read analogLRLevel Read Read Read/Write aesLevel Read Read Read/Write pilotOnOff Read Read Read/Write pilotLevel Read Read Read/Write clock10MhzStatus Read Read Read clock10MhzLock Read Read Read clock1PPS Read Read Read afcLock Read Read Read afcUnlock Read Read Read modulationSilence Read Read Read audioInputSilence Read Read Read audioSilenceThreshold Read Read Read/Write audioSilencePeriod Read Read Read/Write exciterCommunications Read Read Read paForwardPower Read Read Read paReflectedPower Read Read Read paPowerSetpoint Read Read Read/Write paRfInPower Read Read Read paAlarmStatus Read Read Read paAlarmPowerSupplyDC Read Read Read paAlarmFoldbackReflectedPower Read Read Read paAlarmFoldbackTemperature Read Read Read paAlarmFoldbackCurrent Read Read Read paAlarmMutedInput Read Read Read paAlarmRailed Read Read Read

16 ©2013 Broadcast Electronics Object ID User Access Operator Access Chief Access paFaultStatus Read Read Read paFaultPowerSupply Read Read Read paFaultReflectedPower Read Read Read paFaultVSWR Read Read Read paFaultTemperature Read Read Read paFaultCurrentDriver Read Read Read paFaultCurrentIPA Read Read Read paFaultCurrentFinal1 Read Read Read paFaultCurrentFinal2 Read Read Read paFaultCurrentFinal3 Read Read Read paFaultCurrentFinal4 Read Read Read paFaultHardware Read Read Read paFaultCommunication Read Read Read paTemperature Read Read Read paPsVoltage Read Read Read paDriveCurrent Read Read Read paIPACurrent Read Read Read paFinal1Current Read Read Read paFinal2Current Read Read Read paFinal3Current Read Read Read paFinal4Current Read Read Read paTotalCurrent Read Read Read combinerForwardPower Read Read Read combinerReflectedPower Read Read Read splitterRFInputPower Read Read Read splitterConfigID Read Read Read splitterBoardRev Read Read Read splitterAlarmInputMute Read Read Read splitterAlarmInputOverdrive Read Read Read splitterAlarmOutputMuted Read Read Read combinerFaultReflectedPower Read Read Read combinerFaultVSWR Read Read Read combinerFaultTemperature Read Read Read combinerFaultConfig Read Read Read combinerFaultHardware Read Read Read combinerFaultCommunication Read Read Read splitterCombinerPs11V Read Read Read splitterCombinerPs5V Read Read Read splitterCombinerPs3_3V Read Read Read combinerFan Read Read Read combinerTemperatureInternal Read Read Read combinerTemperatureInlet Read Read Read failsafe Read Read Read muteInput Read Read Read fmMode Read Read Read fmDigitalMode Read Read Read digitalMode Read Read Read systemReflectedPowerOutput Read Read Read paTotalCurrentOutput Read Read Read paTemperatureOutput Read Read Read

17 ©2013 Broadcast Electronics Object ID User Access Operator Access Chief Access systemFaultOutput Read Read Read vswrSystemOutput Read Read Read transmitterOnOutput Read Read Read transmitterOffOutput Read Read Read muteOutput Read Read Read afcLockOutput Read Read Read paPsFaultOutput Read Read Read paFaultOutput Read Read Read paForwardPowerOutput Read Read Read paReflectedPowerOutput Read Read Read systemForwardPowerOutput Read Read Read paVoltageOutput Read Read Read controllerSoftware Read Read Read controllerHardware Read Read Read splitterCombinerSoftware Read Read Read splitterCombinerHardware Read Read Read paSoftware Read Read Read paHardware Read Read Read frontPanelSoftware Read Read Read frontPanelHardware Read Read Read systemFaultReset Read Read/Write Read/Write failsafeStatus Read Read Read mute Read Read Read systemAlarm Read Read Read systemFault Read Read Read exciterAlarm Read Read Read exciterFault Read Read Read paAlarm Read Read Read paFault Read Read Read paPsFault Read Read Read splitterCombinerAlarm Read Read Read splitterCombinerFault Read Read Read vswrFault Read Read Read eventTimestamp Read Read Read eventType Read Read Read eventSource Read Read Read eventCode Read Read Read eventParam Read Read Read eventLogEntryOldest Read Read Read eventLogEntryNext Read Read Read eventLogClear Read Read Read/Write

18 ©2013 Broadcast Electronics Backup Control Modes 6STXe systems come equipped with two backup control methods. Emergency control mode is integrated standard with all systems and simply allows the system to continue functioning in the event of a system controller failure. The backup system control and exciter feature utilizes an entire STXe system to also allow for full control interfacing with an identical standby exciter. 6.1 Emergency Control Mode In the event of a loss in communications with the system controller, all sub-systems enter emergency control mode. Behavior when in this mode depends on user specified emergency power levels. This must be set to the desired emergency power level in order to enable the feature, which comes from the factory set at 0 W and is effectively disabled. The system will continue to function at full emergency power as long as the exciter maintains drive to the power amplifier. The power amplifier can only enter emergency power mode from a working state, so it will not unmute or initialize in the emergency power state. 6.2 Standby System Control and Exciter For complete exciter redundancy an exciter switcher kit can be acquired. These kits supply all required hardware for utilization of standby STXe systems. The switcher system is then paired with a second fully functional two rack unit STXe system. Detailed information including installation and operation of this optional configuration are contained in an Application Guide. A copy is included in standard kits and/or inserted in the front of the binder containing this manual if shipped as part of the same order. For electronic copies of this and any other technical documentation please visit http://www.bdcast.com/information-center/ and follow navigation on the left side of the page – authorized login is required.

19 ©2013 Broadcast Electronics Troubleshooting 7Some basic information and troubleshooting steps are included below. If problems persist after basic troubleshooting steps are taken, please contact RF Technical Services. Contact information is located on our website at www.bdcast.com and on page iii in the front of this manual. A fault in any part of the system indicates a complete disruption in normal operation of at least one part of the system. A fault reset command should always be issued through diagnostics in any user interface to correct fault conditions once the problem has been identified. If the reset is not successful or a condition that caused a fault still remains, the fault will re-assert. An alarm typically indicates an abnormal condition that is expected or should resolve itself. Alarms in unexpected situations could indicate serious conditions. Alarms that persist for long periods of time or unexpectedly appear on a regular basis should not be ignored. To get a good feel for what alarms are expended under which conditions, see the alarm details in the sections that follow. 7.1 Event Log The system event log can be accessed through the web interface log page or in its raw form through the eventLog tree in SNMP. An event is defined by its index starting with the first saved event at index 1, a timestamp from the system’s internal real time clock, an event identification number, and the sub-system where the event triggered. Some events also have context-based parameters that are embedded in the description of the event. 7.2 Standby The STXe Exciter comes with built-in functionality for a standby controller and exciter – see section 6.2 Standby System Control and Exciter. A system that is in standby is muted and not actively controlling the transmitter. This mode is not intended in a setup that has a single system controller and exciter. Standby system control and exciter setups should also be able to have no more than one unit active at a time. If a system is stuck in standby mode, this typically indicates a setup problem. Single system controller and exciter setups require a stub 949-4130 that activates the transmitter. This must be attached to the BE Interface jack, please see the appropriate section in the installation and maintenance guide. Dual system controller and exciter setups require a switcher system, such as our FW Exciter Switcher product series, that connects to both assemblies through this interface. The switcher must be operated to activate one controller/exciter. 7.3 Failsafe An asserted failsafe input on the remote station interface is required for operation of the system. The intended usage of this input is to make a loop that passes through safety relays in all critical transmission system components. When any part of the transmission system becomes unsafe, the circuit should open and de-assert the failsafe on the transmitter. When a failsafe condition is active, check all systems that are wired into the failsafe circuit.

20 ©2013 Broadcast Electronics 7.4 Mute A mute refers to a lack of an RF source in some part of the system, and the affected part depends on the context of the notification. Mute indications can happen at various stages for different reasons, and details in system sections below should be considered. Transmitter mute conditions typically refer to the FM exciter. In internal exciters this commonly occurs when: • There is no power to the exciter • The transmitter is turned off • The mute input pin on the remote station interface is asserted • Failsafe input is not asserted • The BE Interface active input is not asserted 7.5 Internal Exciter Diagnostics Table 2 – Exciter Diagnostics Details Fault/Alarm Description AFC Unlock Alarm Automatic frequency control system does not yet have lock. Modulation Silence Alarm This alarm activates when a silence condition is detected in exciter modulation. Audio Input Silence Alarm This alarm activates when a silence condition is detected at the exciter input. Communication Fault This fault occurs when communication between the system controller and the internal exciter is nonfunctional. 7.6 Power Amplifier Diagnostics Table 3 – PA Diagnostics Details Fault/Alarm Description RF Power Supply Fault This fault activates when a power source failure is detected. Reflected Power Fault This fault activates when a sudden increase in reflected power is detected by hardware in the power amplifier. VSWR Fault This fault activates when the measured VSWR is greater than the maximum VSWR rating of the system any power level Temperature Fault This fault actives when the measured internal heat sink temperature exceeds the safe limit Current Fault There is current monitoring on the final stage RF amplifiers. The PA shuts down when measured current on any of these solid state amplifiers exceeds the safe limit. Hardware Fault This is an internal self-report of problems in PA control hardware. Communication Fault This fault occurs when communication between the system controller and the PA is lost. Power Supply DC Alarm This is a direct connection to a self-reported DC level issue in any power supply. This asserts when the voltage is too far from nominal. This is normal behavior when the PA is turned off for any reason. Reflected Power During FM only operation, the PA attempts to lower its output

21 ©2013 Broadcast Electronics Fault/Alarm Description Foldback Alarm power when reflected power approaches dangerous levels. This keeps the transmitter running at reduced power in order to prevent a reflected power fault. Temperature Foldback Alarm During FM only operation, the PA attempts to lower its output power when the internal heat sink temperature approaches dangerous levels. This keeps the transmitter running at reduced power in order to prevent a temperature fault. Current Foldback Alarm During FM only operation, the PA attempts to lower its output power when the final power transistor current approaches dangerous levels. This keeps the transmitter running at reduced power in order to prevent a current fault. Muted Input Alarm This alarm activates as a hardware failsafe mechanism when the measured exciter drive input is below the minimum threshold for safe operation. The approximately 10 mW threshold is only for FM-only mode. Railed Alarm During FM only operation this indicates a condition where automatic power control has reached its highest or lowest possible control value indicating a lack of proper controllability.

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23 ©2013 Broadcast Electronics AC POWER SOURCEANTENNA/TRANSMITTERPROGRAM SERVICESOURCE(S)STXe60 ASSEMBLYRF POWERAMPLIFIERPA CONTROLCONTROL INTERFACESSYSTEM CONTROLLER/EXCITERCONTROL COMMUNICATIONSAUDIO CHANNEL(S)RF PATHAC OR DC POWERKEYFAN POWER SUPPLYPOWER REGULATORMAIN POWER SUPPLY Figure 10 – STXe60 System Block Diagram

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