STRATA TX System Analog + Digital Portable 3.4 to 13.25 GHz Microwave Transmitter Operator’s Guide Manual Part No. 400504-1 Rev.
Note To User - RF Exposure MPE Calculation EIRP = P * (10 ^ (G / 10)) = (antilog of G/10) * P RF Exposure P = RF power delivered to the antenna in mW G = Power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna in centimeters S = MPE in mW/cm² (milliwatts per square centimeters) Microwave Radio Communications (MRC) provides this warning for safety purposes with the intent to inform the user of the potential hazard to
6. Multiply R² * 4π 7. [S] Divide (R² * 4π) into EIRP Figure 1: Analog Modulation Estimated Per missible Exposure @ 2.7 Watt s Digital RF Power f or STRAT A 6.425 - 6.525 and 6.8875 - 7.1255 GHz. S = Power Density in milliwatts per square centimeters.
The following table reflects the graphic representations above. Table 1: Antenna Gain (dBi) Minimum Distance from Antenna (cm) Minimum Distance from Antenna (inch) 0 20 7.87 5 35 13.7 16 112 44 20 560 220.4 37.5 1088 428.
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Notices About This Manual Part number 400504-1 Revision C February 2007 The information in the manual applies to the Microwave Radio Communications (MRC) STRATA TX System. Copyright The information in this manual may only be reproduced by the purchaser strictly for its own internal use to the extent required for its use of the product, and shall only be made available to purchaser’s employees who need access to this material.
Conventions Symbols Used Pay special attention to information marked in one of the following ways: The following symbols are used on the equipment: WARNING CAUTION Note Follow WARNINGS closely to prevent personal injury or death. Symbol Meaning WARNING: General Warning. Risk of Danger WARNING: Risk of Electric Shock Follow CAUTIONS to prevent damage to the equipment. WARNING: Electrostatic Discharge.
Warranty Information Product Manufactured by MRC: a. Products manufactured by MRC are warranted against defects in material and workmanship for a period of two (2) years from date of delivery as evidenced by MRC's packing slip or other transportation receipt (unless otherwise noted). b.
WARRANTIES STATED HEREIN, MRC DISCLAIMS ALL WARRANTIES ON PRODUCTS FURNISHED HEREUNDER, INCLUDING, WITHOUT LIMITATION, ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. MRC WILL HAVE NO RESPONSIBILITY FOR ANY PARTICULAR APPLICATION MADE OF ANY EQUIPMENT.
Contents About This Manual - - - - - - - - - - - - - - - - - - - - - - - - i Copyright - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - i Proprietary Material - - - - - - - - - - - - - - - - - - - - - - - i Quality Certification - - - - - - - - - - - - - - - - - - - - - - - i Regulatory Status- - - - - - - - - - - - - - - - - - - - - - - - - i Conventions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ii On-Line Viewing - - - - - - - - - - - - - - - - - - - - - - - - - - ii Symbo
Using the Monitor Screens in Ext IF Input Mode 3-22 Using the Monitor Screens in COFDM - IF Mode 3-23 Using the Monitor Screens in COFDM ASI In Mode 3-24 Using the Monitor Screens in Analog - IF Mode- 3-25 Using the Monitor Screens in DVB-S Mode - - - - 3-26 TXU and/or TCU Control Operations - - - - - - - - - - - 3-27 Changing a Preset - - - - - - - - - - - - - - - - - - - - - 3-29 Setting a Channel- - - - - - - - - - - - - - - - - - - - - - 3-30 Setting Power Output - - - - - - - - - - - - - - - - - - - 3-
1 1.1 Introduction 1.3 What This Manual Covers This manual describes how to operate the STRATA TX Transmitter System. Chapter Overview This chapter will introduce you to the Operator’s Guide: what it covers, how it’s organized, and for whom it’s written. For information on Installation, Repair, Replacement Parts, and Theory of Operation, refer to the STRATA TX Technical Reference Manual. 1.2 This manual also covers various configurations of the STRATA TX System.
Note Chapter Operator’s Guide Introduction Product Description Routine Operation Troubleshooting Advanced Operation Technical Reference Manual 1.5 The Technical Reference Manual contains everything in the Operator’s Guide, plus additional technical content. For Whom It’s Written This manual is intended for use by personnel assigned to operate the STRATA TX System. Users of this manual should already be familiar with basic concepts of radio, video, and audio. 1.
Friday Telephone: 800-490-5700 (Press 4) 8:00 AM - 5:00 PM Eastern Time (US) 978-671-5700 (Press 4) (0800 - 1700 hrs US ET) Fax: 978-671-5800 Telephone: 800-490-5700 (Press 3) E-mail: 978-671-5700 (Press 3) After regular business hours and on weekends and holidays, you can also reach our expert staff as follows: Fax: 978-671-5800 E-mail Telephone: 978-671-5929 customerservice@mrcbroadcast.
The TXU and TCU require specialized test equipment to calibrate amplitude and frequency characteristics after repair. In addition, sealing the TXU, TCU, or optional ACU enclosures after repair requires exacting techniques and special fixtures to ensure weather resistance of the units. Therefore, there are NO supported field repairs to either the TXU, TCU, or ACU. Return the entire unit for factory repair. If you attempt field repair, you risk damaging your equipment.
2 2.1 Product Description 2.2 Chapter Overview This chapter provides an overall description of the STRATA TX System, its components, and its capabilities. Here are the topics covered: System Description The STRATA TX System is a highly reliable, flexible, and compact portable microwave transmitter system ideal for tripod, airborne, or mobile installations. A typical STRATA TX System is composed of the Transmitter Unit (TXU) and the Transmitter Control Unit (TCU), as shown in Figure 2-1 on page 2-2.
Figure 2-1: STRATA TX System Block Diagram 1.84 MHz OOK Tone y y y y y NTSC PAL SDI ASI IF Telemetry Telemetry TCU IN TXU RF Out DC Power and/or IF RS-232 +28 VDC RS-232 The STRATA TX System TXU and the TCU may be operated in stand-alone configurations depending upon specific video applications. 2.2.1 System Options The STRATA TX System can be ordered configured for 1 of 11 specific RF bands as follows: • 3.4 to 3.9 GHz • 4.4 to 5.0 GHz • 6.4 to 7.1 GHz • 6.9 to 7.5 GHz • 7.4 to 8.
TCU The Transmitter Control Unit (TCU) can be equipped with either an FM Modulator or COFDM/MPEG module, or both. ACU The optional AC to DC Power Converter (ACU) provides +28 VDC power from an AC power source to power one or more units in a system. Remote Control Panels Optional Remote Control Panels are available to allow remote control of the STRATA TX System from an instrument panel during airborne or mobile operations. 2.2.
Power Options The STRATA TX System configurations operate on +28 VDC power, supplied externally. This DC power can be supplied by the optional STRATA ACU, or from another DC power source. Contact your Sales Representative for the latest details. Note A TCU and TXU are defined as being “co-located” when the TXU and TCU are physically separated by not greater than 6 feet.
DC power superimposed on the coaxial cable between a TCU and a TXU can be supplied from either the TCU or TXU, depending upon the location of the DC power supply. Coaxial cable length/voltage limitations exist when powering from either the TXU or TCU. These limitations are based on cable size, DC voltage input, cable resistance, and cable length. A maximum length of 600 feet (180 meters) between the TXU and TCU is supported. Contact MRC Technical Support for more information on cable requirements.
Interfacing a PC to either the TXU or TCU in a connected system gives you complete control of both units. You can read the current settings, program new settings, or return the units to their factory default settings. The STRATA TX Configurator software automatically detects what hardware is installed in the system and assigns the appropriate configuration to the correct hardware, regardless of which unit holds the hardware being configured.
2.3 System Components Figure 2-6: STRATA TXU This section will provide more details about each the components of a STRATA TX System: • STRATA TXU • STRATA TCU • STRATA ACU • STRATA Remote Control Panels For details on connections between the STRATA TX System components, refer to the “Installation” chapter (part of the STRATA TX Technical Reference Manual only). 2.3.
Figure 2-7: STRATA TCU Figure 2-8: AC to DC Converter < > DC OUTPUT Where only digital or analog video transmission is desired, the MPEG/COFDM or FMT modules may be installed in a TXU, thereby eliminating the need for a TCU. The STRATA TX design does not permit splitting digital and analog video modulator modules between a TXU and a TCU. A TCU may also consist of a stand-alone configuration whereby either or both MPEG/COFDM and FMT modules may be used independent of the TXU.
Both Remote Control Panel models provide simplified transmit operations by allowing the operator or pilot to select either analog or digital pre-configured Presets, Channels, and Offsets, depending upon the required operating mode. For additional information, refer to the STRATA Aircraft Remote Control Panel Operator’s Guide (part no. 400490).
Figure 2-11: Standalone TXU Configuration Figure 2-12: TXU - TXU with TCU Configuration DC ON COAX Switch DO NOT EXCEED 36 VOLTS DC AUDIO Connector DO NOT EXCEED 36 VOLTS DC DC ON COAX OFF SIGNAL INPUT Connector Front View PWR/RS-485 Connector ON SIGNAL INPUT Connector Front View PWR/RS-485 Connector RF Output Connector If your TXU was ordered to operate with a TCU, it will not contain either analog or digital modules and will therefore not contain an AUDIO connector.
TCU Several different configurations of the TCU also exist as the result of technical updates. Configuration differences are described below. switch is located on the front panel to provide manual control of DC power to a TXU. TCU - Older Configuration If your TCU is an older configuration, the controls and connectors contained on the TCU are similar to those shown in Figure 2-13. Older configurations do not contain the front panel DC ON COAX override switch to provide manual control of DC power to a TXU.
2.5 Typical System Configurations Typical STRATA TX System configurations are shown in Figure 2-15. Figure 2-15: STRATA TX System Configurations 2.6 For More Information Additional detailed technical information about the STRATA TX System is contained in the STRATA TX Technical Reference Manual.
3 3.
3.2 Overview of Controls, Indicators, and Connectors Figure 3-1: TXU Controls, Indicators, and Connectors - Front View This section describes the controls, indicators, and connectors used on the STRATA TX System. 3.2.1 XMIT LED TXU Controls, Indicators, and Connectors Controls, indicators, and connectors contained on the TXU are identified and described below.
used when the TCU and the TXU must be deployed in two separate locations. switch on the front panel of the TXU (See Figure 3-1 on page 3-2). Figure 3-2: TXU Controls, Indicators, and Connectors - Rear View • The 75 Ohm Coax option on the Command Screen. Both control methods must be enabled for DC power to be operational if your TCU and TXU configurations both contain the DC ON COAX switches.
XMIT LED on both units will be on or off, depending on the operating mode. Turning the control switch to the right (cw) displays the Monitor options. The Monitor options provide current status of the STRATA TX System, including: TXU Status LED Above the PWR switch on both the TXU and TCU is a multi-color Status LED. The LED indications are as follows: LED Color Meaning ----- Power is not on in that unit. Green Power is on and no errors are detected.
3.2.2 Pressing the control switch causes an action to occur. TCU Controls, Indicators, and Connectors Controls, indicators, and connectors contained on the TCU are identified and described below. Topics covered are as follows: Command Options • If the displayed setting is Chng Preset, Set Channel, or Set PowerOut, pressing the control switch causes the displayed setting to blink. Turning the control switch cw or ccw then displays the other options for that setting.
Figure 3-3: TCU Controls, Indicators, and Connectors XMIT LED Alphanumeric Display TX TCU Status LED PWR Switch mode. The XMIT LED on both units will be on or off, depending on the operating mode. TCU Status LED Above the PWR switch on both the TXU and TCU is a multi-color Status LED. The LED indications are as follows: XMIT LED Color (Front View) RS-232 Connector POWER Connector Control Switch SIGNAL OUT Connector DC ON COAX Switch Monitor (MON) Connector ----- Power is not on in that unit.
TXU. This DC power is superimposed on the coaxial cable between the TCU and the TXU. This DC power option is used when the TCU and the TXU must be deployed in two separate locations. Turning the control switch to the right (cw) displays the Monitor options. The Monitor options provide current status of the STRATA TX System, including: When the TCU and TXU are co-located, MRC recommends both units be powered from the same DC power source.
TCU POWER Connector The TCU POWER connector mounted on the rear panel of the unit allows the TCU to operate on external +28 VDC power sources. Pressing the control switch causes an action to occur. Command Options • If the displayed setting is Chng Preset, Set Channel, or Set PowerOut, pressing the control switch causes the displayed setting to blink. Turning the control switch cw or ccw then displays the other options for that setting.
Figure 3-4: ACU Controls, Indicators, and Connectors Topic AC INPUT Connector Page ACU AC INPUT Connector 3-9 ACU Power LED 3-9 ACU Power LED 3-9 ACU DC OUTPUT Connector 3-9 ACU FUSE 3-9 FUSE Each of the controls, indicators, and connectors are described in more detail in the following paragraphs. Controls, indicators, and connectors contained on the ACU are shown in Figure 3-4.
3.3 Preparing for Operation Figure 3-6: Fixed Mounting Bracket on Tripod Fixed Mounting Bracket Each installation or deployment will have its own specific tasks according to the application and the installed hardware. 3.3.1 Mobile Installation For mobile applications such as aircraft or vehicle, the STRATA TX System is usually mounted in a bulkhead or compartment using an MRC Fixed Mounting Bracket. See Figure 3-5. Mounting brackets are available to mount from one to three units.
usually be mounted in an MRC Universal Mounting Bracket. The Universal Mounting Bracket will then be attached to a Quick Release for easy mounting on an MRC tripod. See Figure 3-7. Figure 3-7: Universal Mounting Bracket on Tripod Universal Mounting Bracket Universal Mounting Brackets are required for each unit in the STRATA TX System, i.e., TXU, TCU, and an optional ACU. For applications using multiple units such as a TXU, TCU, and an ACU, a Mounting Plate is also used to provide additional stiffness.
Figure 3-8: Attaching Quick Release to Tripod 5. Quick Release page 6-1 (part of the STRATA TX System Technical Reference Manual only). Connect the TXU (or TCU) inputs to your audio and video equipment. Figure 3-9: Complete Tripod Installation Tripod TXU Antenna (2 Options Shown) Universal Mounting Brackets 3. 4. If you have both an TXU and a TCU, be sure they are connected to each other via coaxial cable.
Superimposing DC Power In this configuration, DC power is superimposed with the IF signals between units and there is no manual control of DC power from the TCU. The DC power is superimposed on the coaxial cable between the TCU and the TXU. To turn DC power on and off, the operator uses the TCU and TXU front panel PWR switches and either the TCU or TXU control switch and alphanumeric display menus. The TXU DC ON COAX switch must be set to ON.
5. The normal power-up sequence is as follows: - - - If the TCU is powered from a source other than an ACU, turn that power source off. The Status LED above the PWR switch should illuminate and should change colors from red, to green, to amber, and finally remain green. The alphanumeric display should light up and quickly display a self-test screen, then the version of the installed firmware, and finally the Main Screen. Some typical screens are shown in Figure 3-10.
If the TXU is powered from a source other than an ACU, turn that power source on. 4. 5. Set the TXU PWR switch to I (on). The normal power-up sequence is as follows: - - - The Status LED above the PWR switch should illuminate and should change colors from red, to green, to amber, and finally remain green. The alphanumeric display should light up and quickly display a self-test screen, then the version of the installed firmware, and finally the Main Screen. Some typical screens are shown in Figure 3-11.
If the TCU and TXU are powered from a source other than an ACU, turn that power source on. Power Up 1. 2. 3. 4. 5. 6. Verify the power cable is properly connected to the TCU rear panel POWER connector. Verify the power cable is properly connected to the TXU front panel POWER connector. 7. 8. Set the TCU PWR switch to I (on). The normal power-up sequence is as follows: Note If your TCU does not have a DC ON COAX switch, go to step 4.
9. 10. 3. Set the TXU PWR switch to I (on). The normal power-up sequence is as follows: - - - The Status LED above the PWR switch should illuminate and should change colors from red, to green, to amber, and finally remain green. The alphanumeric display should light up and quickly display a self-test screen, then the version of the installed firmware, and finally the Main Screen. Some typical screens are shown in Figure 3-13. The exact screens will vary depending on installed hardware.
3. 4. Turn the recessed DC ON COAX switch on the front panel of the TXU until the screw slot of the switch points to ON. Verify all coaxial cables and connectors have been properly connected. 7. The normal power-up sequence is as follows: - - Note When the TCU and TXU are mounted in separate locations, it is recommended that DC input power be connected to the TXU.
Figure 3-15: 75 Ohm Coax Option Figure 3-16: Typical TXU Power Up Screens - Co-Located TXU and TCU 75 Ohm Coax Radio Version STRATA TX Power Off V X.X.X 9. Press control switch to change Power Off to read Power On, as required. Set the TXU PWR switch to I (on). The normal power-up sequence is as follows: 10. 11. - - - The Status LED above the PWR switch should illuminate and should change colors from red, to green, to amber, and finally remain green.
3.4 Using the STRATA TX Screens As you use the STRATA TX System, you will interact extensively with the TXU and/or TCU screens. Following are some points to make this easier. Main Screen The Main Screen is your starting point for navigating through the Monitor and Control option screens. The Main screen provides the current values of the Preset selected and the selected Preset output power level. When the STRATA TX System completes its power-up sequence, it will display the Main Screen.
Operation Only) The options displayed on the Monitor Screens are in bold fonts. Once the STRATA TX System is set up and powered up, you will be able to check its configuration and monitor its operation. The following sections describe how to use the Monitor Screens and how to monitor the quality of the microwave link.
Figure 3-18: MPEG Output Monitor Menu Map STRATA TX Operator’s Guide/Tech Ref Manual Routine Operation 3-22
3.5.2 Mode Using the Monitor Screens in Ext IF Input When the STRATA TX System is operating in the Ext IF Input mode, the 70 MHz IF input signal from the input connector is routed through the TCU to the TXU (if present). See Figure 3-19 for the Ext IF Monitor Map.
3.5.3 Mode Using the Monitor Screens in COFDM - IF When the STRATA TX System is operating in the COFDM - IF mode, 70 MHz COFDM IF output from the internal COFDM/ MPEG board is supplied to the output and monitor ports and to the TXU, if present. See Figure 3-20 for the COFDM - IF Monitor Menu Map.
3.5.4 Using the Monitor Screens in COFDM ASI In Mode When the STRATA TX System is operating in the COFDM ASI In mode, the internal MPEG encoder is bypassed and an externally supplied ASI stream is routed to the monitor and output connectors and then to the TXU, if present. See Figure 3-21 for the COFDM ASI In Menu Map.
3.5.5 Mode Using the Monitor Screens in Analog - IF When the STRATA TX System is operating in the Analog - IF mode, 70 MHz FM output is routed to the TXU, if present. This option is only available if the FMT option is installed. See Figure 3-22 for the Analog - IF Monitor Menu Map.
3.5.6 Using the Monitor Screens in DVB-S Mode When the STRATA TX System is operating in the DVB-S mode, this mode utilizes a single carrier modulator and supplies a configurable DVB-S signal to the TCU signal output and monitor connectors. This mode is operational for QPSK, 16 QAM, and 8 PSK modulation formats. This mode is used for standalone TCU operations only. See Figure 3-23 for the DVB-S Monitor Menu Map.
3.6 TXU and/or TCU Control Operations This section describes how to configure your STRATA TX System using the front panel control switch. Turning the front panel control switch counterclockwise on either the TXU or TCU controls transmitter functions including changing Presets, changing RF channel assignments, setting RF attenuation levels, and activation of DC power from a TCU to a separately located TXU, or from a TXU to a separately located TCU.
Figure 3-24: Control Menu Map Changing a Preset STRATA TX Operator’s Guide/Tech Ref Manual Routine Operation 3-29
3.6.1 Changing a Preset Figure 3-25: Main Screen - Changing a Preset The STRATA TX is designed to enable you to control operating settings through Presets stored in the transmitter. The STRATA TCU and TXU are shipped with factory Presets and can be customized for the user. Your STRATA TX System can be pre-configured with up to 9 Presets. Each Preset contains most of the operating settings needed to control the STRATA TX System.
Figure 3-27: Main Screen (Typical) - Preset Changed Preset . W 10. 3.6.2 Notes New Preset The Preset will retain the new channel until the TX System is powered off. When the TX System is powered up again, the new channel setting will be retained. Press the control switch for one second to place the TX System in the transmit mode, as required. When a Preset is changed, the channel does not change. Setting a Channel When a channel is changed, the Preset does not change.
Note 4. 5. 6. 7. 8. 3.6.3 Changing Channels when the TX System is in the transmit mode will place the transmitter in the standby mode when the control switch is pressed. Press the control switch once to select Set Channel and observe the channel selected begins to blink. Turn the control switch cw or ccw until the desired channel and offset are displayed. Press the control switch once to select that channel and offset. Observe the display changes back to the Main screen after a short delay.
9. 3.6.4 Press the control switch for one second to place the TX System in the transmit mode, as required. Notes Controlling TCU to TXU DC Power on Coax If your STRATA TX System requires the TXU and TCU to be mounted in separate locations, MRC recommends powering the TCU via the coaxial cable from the TXU. This procedure must only be performed on STRATA TX Systems where the TXU and TCU are physically mounted in separate locations.
Figure 3-33: 75 Ohm Coax Note 75 Ohm Coax Power Off 5. 6. Note 6. 7. 8. Pressing the control switch to select application of DC power on the coaxial cable from the TXU to the TCU or from the TCU to the TXU when the TX System is in the transmit mode will place the transmitter in the standby mode. If your TCU does not contain a DC ON COAX switch, go to step 6. Turn the recessed DC ON COAX switch on the front panel of the TCU until the screw slot points to ON.
3.7 Front Panel vs. STRATA TX Configurator Settings Table 3-1: Front Panel vs. Configurator Settings (Continued) The design of the STRATA TX System and STRATA TX Configuration Utility software makes commonly available settings accessible from the TXU and/or TCU front panel and more advanced settings accessible through the STRATA TX Configuration Utility.
Table 3-1: Front Panel vs. Configurator Settings (Continued) Available Settings Parameter COFDM Guard Interval Set Using Control Switch Set Using TX Configurator • 1/32 ✔ • 1/16 • • Audio B Type Audio A Mode Audio B Mode Audio A Input Available Settings Parameter Set Using Control Switch Set Using TX Configurator • Test Tone ✔ ✔ • Analog ✔ 1/8 ✔ • SDI EMB ✔ 1/4 ✔ • AES EBU ✔ • OFF ✔ MPEG Audio A Type Table 3-1: Front Panel vs.
Table 3-1: Front Panel vs. Configurator Settings (Continued) Available Settings Parameter Set Using Control Switch Set Using TX Configurator 4830 kHz ✔ • 5200 kHz ✔ • 5800 kHz • Available Settings Parameter Set Using Control Switch Set Using TX Configurator • 1/2 ✔ • 2/3 ✔ ✔ • 3/4 ✔ 6200 kHz ✔ • 5/6 ✔ • 6800 kHz ✔ • 7/8 ✔ • 7020 kHz ✔ • 0.25 ✔ • 7500 kHz ✔ • 0.
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4 4.1 Troubleshooting Table 4-1: Status LED Indications Chapter Overview This chapter describes how to troubleshoot your STRATA TX System. LED Color Meaning Suggested Action ----- Power is not on in that unit. Turn on power, as required. Green Power is on and no errors are detected. None. Amber Minor Alarm - Power is on but some part of the system reports an abnormal condition that requires attention. Condition might impair performance.
Table 4-2: Display Messages Message Not On Chnl No Video Meaning Channel frequencies defined in the Channel Plan for that band are not being recognized. The TX is unable to lock on video signal. STRATA TX Operator’s Guide/Tech Ref Manual Suggested Operator Action Contact technical staff. Suggested Technical Staff Action • Use STRATA TX Configuration Utility to check settings. Check the Channel Plan to be sure it is correct. Verify Channel Plan matches the transmitter settings.
4.4 Error Codes Figure 4-1: Error Code Format The STRATA TX has an extensive library of diagnostic Error Codes to help you pinpoint any problems. Primary Error Code Identifies error condition. See Section 4.4.1 . These Error Codes: • Are displayed on the front panel display, on the Error Code Screen. • Cause the Status LED to glow amber, alerting you to investigate the problem. E141 41 The Error Codes are formatted into 2 groups of characters, as described in Figure 4-1. 4.4.
Table 4-3: Primary Error Codes Error Code Meaning Suggested Operator Action Suggested Technical Staff Action Status Errors (Some part of System is reporting an abnormal condition.) E020 E021 E0E0 TXU IF Fault TXU RF Fault FMT Video PLL Unlocked E0E1 FMT Audio 1 PLL Unlocked E0E2 FMT Audio 2 PLL Unlocked E0E3 FMT Audio 3 PLL Unlocked E0E4 FMT Audio 4 PLL Unlocked • Verify condition of all cable connections. • Contact technical staff. • Verify condition of all cable connections.
Table 4-3: Primary Error Codes (Continued) Error Code E080 Meaning Communication Failure with the COFDM/MPEG Unit Suggested Operator Action Note - This error will appear only if the TX System contains the COFDM/MPEG option. • If the TX System contains a standalone TXU or TCU, contact technical staff. • If the TX System contains both a TXU and a TCU, verify condition of cable connections. Contact technical staff. • Check for Error Codes related to power - E035 thru E039 and E03A thru E03E.
Table 4-3: Primary Error Codes (Continued) Error Code Meaning E035 TXU 75 Ohm Coax Current Error E036 TXU 75 Ohm Coax Voltage error E037 TXU 75 Ohm Coax Power Error E038 TXU 50 Ohm Coax Current Error E039 TXU 50 Ohm Coax Voltage error E03A TXU 50 Ohm Coax Power Error Suggested Operator Action Note - these errors can only appear in a TX System with TXU and a TCU, when powering the TXU from the TCU or from the TCU to the TXU via DC power superimposed on the coax cable between the TCU and the TXU
Table 4-3: Primary Error Codes (Continued) Error Code E042 Meaning TCU Temperature error E043 TCU 75 Ohm Coax Current Error E044 TCU 75 Ohm Coax Voltage Error E045 TCU 75 Ohm Coax Power Error Suggested Operator Action • Check TCU to be sure it is not too close to sources of heat. Relocate TCU, if possible. • Verify TCU has room around it for air circulation. Move objects preventing air flow. • Contact technical staff.
4.4.2 4.5 Error Status Operational Problems The significance of the Error Status digit depends on what Primary Error Code is being reported. See Table 4-4. Information provided on the following pages will assist you in troubleshooting problems that arise in the operation of your STRATA TX System. Table 4-4: Error Status Digit For video problems, See Table 4-6 on page 4-9; for general system problems, See Table 4-7 on page 4-10.
Table 4-6: Video Problems Problem Possible Cause Suggested Operator Action Suggested Technical Staff Action Video Problems No video. Problem with video source or cabling Transmitter and Receiver compatibility problems Video source configuration problem • Check video source and cabling. • Contact technical staff. • Verify Transmitter and Receiver are both operating in the same digital or analog modes. • Verify Transmitter and Receiver are both operating on the same frequency.
Table 4-7: General System Problems Problem Possible Cause Suggested Operator Action Suggested Technical Staff Action General System Problems Status LED on TXU/ TCU is yellow. TX System is indicating a Minor Alarm. • • Check all Monitor Screens on TXU/TCU display. Troubleshoot per Section 4.3 on page 4-1. • Error messages: Troubleshoot per Section 4.3 on page 4-1. • Error Codes: Troubleshoot per Section 4.4 on page 4-3. Check Error Code Screen on TXU/TCU display. Troubleshoot per Section 4.
A A.1 Channels & Frequencies preset at the factory, but can be modified using the STRATA TX Configurator software. Note Appendix Overview These frequency settings should only be changed by qualified technical personnel. This Appendix presents the channels and frequencies that can be programmed into your STRATA TX System at the factory.
Table A-1: 3.4 to 3.8 GHz Channel Plan A.2.3 Channel (-) Offset (MHz) (0) Center (MHz) (+) Offset (MHz) 12 3760.000 3770.000 3780.000 13 3790.000 3800.000 3800.000 14 3800.000 3800.000 3800.000 A.2.2 The channel plan for the 6.4 to 7.1 GHz STRATA TX System is contained in Table A-3. Table A-3: 6.4 to 7.1 GHz Channel Plan 4.4 to 5.0 GHz Channel Plan The channel plan for the 4.4 to 5.0 GHz STRATA TX System is contained in Table A-2. Table A-2: 4.4 to 5.0 GHz Channel Plan 6.4 to 7.
A.2.4 6.9 to 7.5 GHz Channel Plan A.2.5 7.4 to 8.0 GHz Channel Plan The channel plan for the 6.9 to 7.5 GHz STRATA TX System is contained in Table A-4. The channel plan for the 7.4 to 8.0 GHz STRATA TX System is contained in Table A-5. Table A-4: 6.9 to 7.5 GHz Channel Plan Table A-5: 7.4 to 8.0 GHz Channel Plan Channel (-) Offset (MHz) (0) Center (MHz) (+) Offset (MHz) Channel (-) Offset (MHz) (0) Center (MHz) (+) Offset (MHz) 1 6900.000 6915.000 6930.250 1 7405.000 7425.000 7445.
A.2.6 7.8 to 8.5 GHz Channel Plan A.2.7 8.2 to 8.9 GHz Channel Plan The channel plan for the 7.8 to 8.5 GHz STRATA TX System is contained in Table A-6. The channel plan for the 8.2 to 8.9 GHz STRATA TX System is contained in Table A-7. Table A-6: 7.8 to 8.5 GHz Channel Plan Table A-7: 8.2 to 8.9 GHz Channel Plan Channel (-) Offset (MHz) (0) Center (MHz) (+) Offset (MHz) Channel (-) Offset (MHz) (0) Center (MHz) (+) Offset (MHz) 1 7805.000 7825.000 7845.000 1 8205.000 8225.000 8245.
A.2.8 10.0 to 10.7 GHz Channel Plan A.2.9 10.5 to 11.2 GHz Channel Plan The channel plan for the 10.0 to 10.7 GHz STRATA TX System is contained in Table A-8. The channel plan for the 10.4 to 11.2 GHz STRATA TX System is contained in Table A-9. Table A-8: 10.0 to 10.7 GHz Channel Plan Table A-9: 10.5 to 11.2 GHz Channel Plan Channel (-) Offset (MHz) (0) Center (MHz) (+) Offset (MHz) Channel (-) Offset (MHz) (0) Center (MHz) (+) Offset (MHz) 1 10005.000 10025.000 10045.000 1 10505.
A.2.10 10.8 to 11.5 GHz Channel Plan The channel plan for the 10.8 to 11.5 GHz STRATA TX System is contained in Table A-10. Table A-10: 10.8 to 11.5 GHz Channel Plan Table A-11: 12.7 to 13.25 GHz Channel Plan Channel (-) Offset (MHz) (0) Center (MHz) (+) Offset (MHz) 1 12706.250 12712.500 12718.750 (-) Offset (MHz) (0) Center (MHz) (+) Offset (MHz) 2 12731.250 12737.500 12743.750 Channel 3 12756.250 12762.500 12768.750 1 10805.000 10825.000 10845.000 4 12781.250 12787.500 12793.
B Glossary Table B-1: Useful Terms (Continued) 8QAM This section describes acronyms and abbreviations used in communications, broadcasting, and in our products and documentation. The signal (video + audio) is imposed onto the 70 MHz carrier by varying both the phase and the amplitude of the signal while keeping the frequency constant. There are 8 possible combinations of phase and amplitude that can be used to carry information.
Table B-1: Useful Terms (Continued) ASI Asynchronous Serial Interface A serial communications interface operating at 270 Mbit/sec., generally used in field news-gathering operations. ASYNC Asynchronous Digital communication in which there is no timing requirement for transmission and in which the start of each character is individually signaled by the transmitting device. Baseband A composite signal in which video and audio signals are combined together, with video occupying approximately 0-4.
Table B-1: Useful Terms (Continued) dB Decibel Table B-1: Useful Terms (Continued) DVB-ASI A logarithmic measurement of power or voltage, applied to audio and RF signals. Digital Video Broadcasting - Asynchronous Serial Interface A widely-used MPEG-2 digital transport interface. Physically the connection is made either with optical fiber or 75 ohm coax with a BNC connector. Interface can support data rates up to 270 Mb/sec. dBm A unit of measurement referenced to one milliwatt.
Table B-1: Useful Terms (Continued) Table B-1: Useful Terms (Continued) EVM Error Vector Magnitude IMD Inter-Modulation Distortion FCC Federal Communications Commission I/O Input/Output IRD Integrated Receiver Decoder IRE 1. Institute of Radio Engineers, an international professional radio engineering association that establishes various standards. 2. A unit of measurement, established by the IRE, in which 1 IRE Unit =.00714 volts peak-to-peak (Vp-p) and 140 IRE units equals 1 Vp-p.
Table B-1: Useful Terms (Continued) MPEG Moving Picture Experts Group M-QAM M-order of Quadrature Amplitude Modulation MRC Microwave Radio Communications Multipath An unpredictable set of reflections and/or direct waves, each with its own degree of attenuation and delay. Due to obstacles and reflectors in the wireless channel, transmitted signals arrive at the received from various directions over multiple paths.
Table B-1: Useful Terms (Continued) RCL Received Carrier Level Table B-1: Useful Terms (Continued) SECAM The strength of a received RF signal, in dBm. Sequence de Couleur Avec Memoire Color television standard used in France, Russia, and other countries. Provides 625 horizontal lines of resolution. Not compatible with NTSC or PAL. Not supported by this product.
C Specifications Audio Coding: . . . . . . . . . . . MPEG–II layer 2 (ISO/IEC 13818-3) ISO/MPEG 11172.3 Layer II (MUSICAM) Digital Audio Inputs (Configurable): . . .Supports AES/EBU audio inputs (2 pairs) balanced inputs – 48 KHz sampling This section provides specifications for the STRATA 2 GHz Transmitter (TX) System. Note Audio Channels (select): . . . . . . . .
ANALOG AUDIO & VIDEO MODULATOR: Monitor Outputs: . . . . . . . . . . . . . . . . . . . 70 MHz signal/pass thru Level output/Impedance: . . . . . . . . . . . +2 dBm Analog/75 Ohms Signal Inputs: . . . . . . . . . . . . . . . . . . . . . . . . . . .Video, Composite 70 MHz (–10 dBm Analog) Video Mute: . . . . . . . . . . . . . . . . . . . . . . . 70 MHz test tone - auto FM Deviation (Selectable): . . . . . . . . . . 3 MHz and 4 MHz - peak Video Input/Return Loss: . . . . . . . . . . . . . . . . . .
COFDM: . . . . . . . . . Modulation, FEC, Bandwidth, Guard Interval MPEG: . . . . . . . . . . . . . . . . . . ASI Bit Rate, Wayside Baud Rate, Chroma, Delay Mode, BISS Key/ID, Audio Type, Audio Mode, Audio Input FMT: . . . . . . . . . . . . . . . . . . . . . . . . Audio Channel Frequency (4), Pre-Emphasis, Video Deviation Channel Plan: . . . .
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Index Numerics 10.0 to 10.7 GHz Channel Plan . . . . . . . . . . . . . . . . . A-5 10.5 to 11.2 GHz Channel Plan . . . . . . . . . . . . . . . . . A-5 10.8 to 11.5 GHz Channel Plan . . . . . . . . . . . . . . . . . A-6 12.7 to 13.25 GHz Channel Plan . . . . . . . . . . . . . . . . A-6 16 QAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1 3.4 to 3.8 GHz Channel Plan . . . . . . . . . . . . . . . . . . . A-1 4.4 to 5.0 GHz Channel Plan . . . . . . . . . . . . . . . . . . . A-2 6.
Related . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 factory default settings . . . . . . . . . . . . . . . . . . . . . . . . 2-6 Frequently Performed Tasks Changing a Preset . . . . . . . . . . . . . . . . . . . . .3-30 Controlling TCU to TXU DC on Coax . . . . . . .3-33 Powering the STRATA TX System . . . . . . . . . 3-12 Preparing for Operation Mobile Installation . . . . . . . . . . . . . . . . . . . 3-10 Mounting to the Tripod . . . . . . . . . . . . . . . .
Power Options TXU and TCU - separate locations . . . . . . . . . . 2-4 TXU and TCU co-located . . . . . . . . . . . . . . . . . 2-4 Powering the STRATA System Superimposing DC Power . . . . . . . . . . . . . . . . 3-13 Superimposing DC Power with Manual Control 3-13 Powering the STRATA TX System Single TCU Power Up and Power Down . . . . 3-13 Single TXU Power up and Power Down . . . . . 3-14 Superimposing DC Power . . . . . . . . . . . . . . . . 3-13 TXU and TCU Power Up and Power Down Co-Located . . . . .
T Error Status . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8 general system problems . . . . . . . . . . . . . . . . 4-8 Messages on Display . . . . . . . . . . . . . . . . . . . 4-1 Operational Problems . . . . . . . . . . . . . . . . . . . 4-8 Primary Error Code . . . . . . . . . . . . . . . . . . 4-3, 4-8 Status LED . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Unit ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8 video problems . . . . . . . . . . . . . . . .
TXU and/or TCU screens . . . . . . . . . . . . . . . . . . . . .3-20 TXU Controls, Indicators, and Connectors . . . . . . . . . 3-2 TXU Front Panel DC ON COAX Switch . . . . . . . . . . . 3-2 TXU IF/RF module . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 TXU or TCU single-unit applications . . . . . . . . . . . . . . . . . . . 2-3 TXU Rear Panel DC ON COAX Switch . . . . . . . . . . . . 3-5 U Unit vs.System Control . . . . . . . . . . . . . . . . . . . . . . . 3-20 UNLOCKED message . . . . . .
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