Broadcast Electronics STXe Series Page 52 Technical Manual Download | Manualshive

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©2020 Broadcast Electronics

Figure 17 – Web Interface PA Status Page

Figure 18 – Web Interface Events Page

To check the current web page version, simply point a web browser to [IP Address]/rev.htm

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Summary of Contents for STXe Series

Page 1: ...ctronics 4100 North 24th Street Quincy Illinois 62305 USA Phone 217 224 9600 Fax 217 224 9607 www bdcast com bdcast bdcast com STXe Series 2 3 kW FM Transmitter Technical Manual 597 40633 Revision B A...

Page 2: ...nsmitted transcribed stored in a retrieval system translated into any other language in any form or by any means electronic or mechanical including photocopying or recording for any purpose without th...

Page 3: ...y way altered from their new condition d Resale Equipment defined as equipment purchased from another manufacturer or supplier then resold by Broadcast Electronics shall only carry such manufacturer s...

Page 4: ...ized 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 BROADCAST ELECTRONICS WITH REFERENCE...

Page 5: ...chnical assistance is available from Broadcast Electronics by letter prepaid telephone or E mail Do not return any merchandise without first contacting Broadcast Electronics and receiving prior writte...

Page 6: ...turn 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 credi...

Page 7: ...ubes 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 VO...

Page 8: ...95 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 tu...

Page 9: ...n 23 Additional Program Services 24 Ethernet IP Network 26 Password 29 Stereo Generation and Stereo Pilot Injection 30 Pre Emphasis 31 Tuning Digital Mode RF Amplifier Linearity 32 Secondary Audio and...

Page 10: ...udio 71 Logs 71 Other Features VSWR vs Reflected Power 72 Authentication 74 Objects 74 Emergency Control Mode 75 Standby System Control and Exciter 75 Event Log 76 Standby 76 Failsafe 76 Mute 77 Inter...

Page 11: ...Web Interface Authentication 58 Figure 16 Expanded View on Main Page 58 Figure 17 Web Interface PA Status Page 59 Figure 18 Web Interface Events Page 59 Figure 20 RDS Setup Page 60 Figure 21 Audio De...

Page 12: ...he following Section Installation and Initial Set Up If you are not currently familiar with the STX Series please refer to the detailed information provided in Sections 4 5 of this manual for addition...

Page 13: ...ite 15 AES 2dBFS input level 16 AES Stereo injection 100 17 Analog L 2 5 dB input gain 18 Analog R 2 5 dB input gain 19 Analog L R Stereo injection 100 20 Composite 8 0 dB input gain 21 SCA1 o Off o 1...

Page 14: ...ed in section 4 1 1 GPIO for the pin out information for connection to a sites remote control system All installations require unmute failsafe to be activated at a minimum If this is the only site req...

Page 15: ...nd Nuts 4 Plug the assembly on the GPIO connection and secure the screws AC Connection ENSURE AC MAIN IS DISCONNECTED AND LOCKED OUT BEFORE INTERACTING WITH ANY AC CONNECTIONS 1 Insert AC wiring into...

Page 16: ...ight saving 1 From the main screen on the transmitter control center on the front panel of the main assembly press up or down to navigate to the Date and Time menu Press enter to continue 2000 01 01 T...

Page 17: ...s required when the carrier frequency is changed If the STX RF output is on TX ON when the frequency is changed the system will momentarily turn the RF output off change the frequency and immediately...

Page 18: ...ve the cursor between frequency digits Press up or down on each digit to increment or decrement the number This change takes effect immediately in the system without saving the setting to allow for ac...

Page 19: ...and used in any on off combination with these primary audio sources AES The STXe supports standard AES audio as well as 192 kHz Composite over AES The 192 kHz Composite over AES operates with various...

Page 20: ...creen on the transmitter control center on the front panel of the main assembly press up or down to navigate to the AUDIO LEVEL menu Press enter to continue AUDIO LEVEL TRANSM ITTER CONTROL CENTER 8 P...

Page 21: ...R TRANSM ITTER CONTROL CENTER 4 Set the stereo injection reduction to allocate injection budget for secondary services Leave this at 100 if there are no secondary services 5 Press left or right to mov...

Page 22: ...he cursor 10 11 Press up or down on each digit to increment or decrement the number and take effect in the system This has immediate effect Do this until the displayed left channel peak hold is the de...

Page 23: ...nu Press enter to continue AUDIO INPUT TRANSM ITTER CONTROL CENTER AES 100 0 3 Press up or down to select COMPOSIT as the primary audio source Press enter to continue AUD IN COMPOSIT TRANSM ITTER CONT...

Page 24: ...Composite input is summed with the supplementary sources SCA1 SCA2 and RDS When calibrating the Composite input the supplementary sources should be turned off 9 COMP 08 00dB TRANSM ITTER CONTROL CENTE...

Page 25: ...ut Activate the source with a constant level tone or typical level real audio 2 From the main screen on the transmitter control center on the front panel of the main assembly press up or down to navig...

Page 26: ...ed composite peak hold is within a few percent of 100 9 Note SCA1 SCA2 and RDS input signals that are enabled also contribute to this composite peak hold value These sources should be turned off befor...

Page 27: ...ither this simple static IP setup or dynamic host control setup 1 From the main screen on the transmitter control center on the front panel of the main assembly press up or down to navigate to the ETH...

Page 28: ...TTER CONTROL CENTER 010 002 001 001 MAC ADDRESS TRANSM ITTER CONTROL CENTER AABBCCDDEEFF 5 Press left or right to move the cursor to any of the 12 digits Press up or down to increment or decrement the...

Page 29: ...s up or down to navigate to the ETHERNET IP CONTROLLER Press enter to continue ETHERNET IP TRANSM ITTER CONTROL CENTER CONTROLLER 3 Once in the menus press up or down to select CONTROLLER DHCP and pre...

Page 30: ...bly press up or down to navigate to the PASSWORD menu Press enter to continue PASSWORD TRANSM ITTER CONTROL CENTER 2 Press up or down to select the password to be set Press enter to continue SET PASSW...

Page 31: ...CENTER 3 Press enter for the selected mono stereo mode to save and take effect in the system 4 Note that if changing from any mono mode to stereo the internally generated 19 kHz stereo pilot will aut...

Page 32: ...will only be present if the STXe is in Stereo mode Pre Emphasis Internal pre emphasis filtering on the AES and Analog L R audio inputs is another standard option feature tied to internal stereo gener...

Page 33: ...the power settings menu on the transmitter control center front panel interface PWR SET 3000W TRANSM ITTER CONTROL CENTER 3000W RFL 16 2 Press down up to one of the PA V screens There is a screen for...

Page 34: ...o an alternate source after the PRIMARY AUDIO is absent for the time entered in the SILENCE TIMEOUT setting 6 From the main screen on the transmitter control center on the front panel of the main asse...

Page 35: ...UP TRANSM ITTER CONTROL CENTER SILENCE TIMEOUT 12 Press up or down left or right to enter a timeout in seconds SILENCE 10 TRANSM ITTER CONTROL CENTER 13 Press enter when finished for the time out sett...

Page 36: ...nators in the figures below refer to sub section numbers in this section For example Box 4 1 of Figure 7 corresponds to details in 4 1 of this section Figure 7 Feature Connector Location REAR 4 16 4 2...

Page 37: ...t Transmitter On Turns RF power on with an active low edge 4 Input Transmitter Off Turns RF power off with an active low edge 5 Input Mute Mutes RF while the input is held low This essentially perform...

Page 38: ...output power is on 23 Output Transmitter Off Low when system RF output power is off 24 Output Mute Status Low when the transmitter is muted via input pin 5 25 Output AFC Lock Low when the internal exc...

Page 39: ...f concurrent users that can be connected to the STX however an excessive number of connections will cause a decrease in performance COM IN System communications bus input This RJ45 jack is intended to...

Page 40: ...and disabled independently 19kHz OUT 19 kHz stereo pilot output connector This BNC connector is used to output the pilot signal for optional use in external synchronization equipment The output wave f...

Page 41: ...ndently RF OUT The final power amplifier output This N connector output carries the amplified RF output at the maximum 3kW FM only forward power level to connection to a 50 Ohm antenna RF SAMPLE Power...

Page 42: ...his section Figure 8 Control and Feature Locations FRONT AUDIO The audio LED indicates the status of the current primary audio source and remains green until a fault is detected If an audio peak is de...

Page 43: ...ange indicates an alarm condition Red indicates a fault and PA shutdown condition See Table 10 PA Diagnostics Details in section 12 6 for details on what alarms or faults may be active PS The power su...

Page 44: ...ms 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...

Page 45: ...ifferent branches or cycles through options When an editing screen is entered this button modifies the object located at the cursor Return Button The context dependent down button performs two primary...

Page 46: ...ting mode setup parameters determines the definition of this interface which is described in following paragraphs Systems come standard equipped to run either of two standard modes of power amplificat...

Page 47: ...is includes transmitters remote monitoring and control and signal generation options With a provided cable harness the STXe can seamlessly interface with legacy Broadcast Electronics transmitters Usin...

Page 48: ...47 2020 Broadcast Electronics Figure 10 Transmitter Control Center Menus Sheet 1...

Page 49: ...49 2020 Broadcast Electronics Figure 11 Transmitter Control Center Menus Sheet 2...

Page 50: ...toring information and other settings click on the link buttons located on the bottom of the Main Page Login Profiles Basic Web Page Posting settings to the exciter and other settings in bold requires...

Page 51: ...4 You can also click on a text field of the desired change in any of the option windows shown in Figure 25 The Authentication dialog box will pop up as shown inFigure 24 Simply enter the user profile...

Page 52: ...59 2020 Broadcast Electronics Figure 17 Web Interface PA Status Page Figure 18 Web Interface Events Page To check the current web page version simply point a web browser to IP Address rev htm...

Page 53: ...static RDS information or FSK ID data such as Translator Identification use the Internal RDS Setup link listed in the bottom of the Basic Web page Figure 28 to access the RDS Setup Page Figure 29 Fig...

Page 54: ...of the RF signal The audio delay is settable with an integer number steps from 0 to 8128 where each step is on the order of 5 3 micro seconds This correlates to a delay range from 0 to 43 7 milliseco...

Page 55: ...his page click the GRAPHICAL INTERFACE link at the bottom of the basic web page Figure 21 Link from Basic Web Page to GUI Main Page Refer to Figure 32 While navigating the screen pages buttons with ba...

Page 56: ...login profile move cursor into the view button and a popup window will display click to change Logged in status as in Figure A The previous screen being displayed will change to that in Figure B Move...

Page 57: ...cast Electronics Figure 25 Profile Logged Out Navigation The primary screens in the GUI can be accessed by clicking on the text in the Navigation Bar near the top of the page in Figure 36 Figure 26 Na...

Page 58: ...rdware setup type This is determined during initial setup of the system and might be 1kW 2kW 3kW or 5kW TX transmitter 2 Date and Time Real time clock data configured during setup 3 Login Profile Acti...

Page 59: ...sured system forward RF power output reading 9 Reflected Power Internally measured system reflected RF power reading 10 Frequency FM carrier frequency setting 11 Modulation Internal frequency modulati...

Page 60: ...gle PA 1kW systems 3 RF Input Power RF In mW PA RF drive input power reading in mili Watts 4 Driver Current Driver mA Current in milli Amperes for the driver stage RF power amplifier 5 Final Current F...

Page 61: ...er RF In mW Splitter RF drive input power reading in mili Watts 4 Inlet Temperature Inlet Temp C Front inlet temperature measurement in degrees Celsius 5 Combiner Temperature Combiner Temp C Internal...

Page 62: ...with changes to the mono stereo setting Can be controlled independently 5 Modulation Frequency deviation amount in kilohertz from nominal carrier frequency This setting represents 100 peak frequency m...

Page 63: ...nformation for connections on the GPIO connector pins shown in the left columns These connections may be used for machine interfaces with remote station controllers monitors or with other transmission...

Page 64: ...lows the stereo composite to be scaled down to balance modulation budget without changing gain calibration setup This also scales pilot when in stereo 4 Modulation Peak holds for inputs displayed as e...

Page 65: ...ory identification in a readable format 6 Parameter Event specific value for logging some changes 7 Full Description Log entry details in a readable format 8 Scroll Click the up and down arrows to scr...

Page 66: ...73 2020 Broadcast Electronics...

Page 67: ...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...

Page 68: ...t at 0 W and is effectively disabled The transmitter will continue to function at full emergency power as long as the exciter maintains drive to all power amplifiers The power amplifier can only enter...

Page 69: ...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 descripti...

Page 70: ...ller and the internal exciter is nonfunctional AFC Unlock Alarm Automatic frequency control system does not yet have lock 10MHz Status Displays INT when exciter is on the Internal reference or EXT for...

Page 71: ...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 Dur...

Page 72: ...snapped washable air filters for each system module Air filter cleaning should be a part of regular system maintenance Main Power Supply 540 0016 007 Power Supply Assembly 53VDC 2kW Phillips Screwdri...

Page 73: ...ps 1 through Error Reference source not found in section 13 3 Main Add on Fan to provide space for removal of this board Power Amplifier Tasks in this section require removal and replacement of both t...

Page 74: ...9 4200 100 Gently pull the 1PPS SMB cable and disconnect it Do not yank the cable use a set of pliers for sufficient grip on the cable end if necessary 1 Disconnect all 2 Repeat all of these steps in...

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