ATSC TV Digital Transmitter CODE APD043A_APD047A_APD045A TITLE ATSC TV DIGITAL TRANSMITTER REV 1 DATE 29/10/08
ATSC Transmitter Family Registration number: IT-17686 Registration number: IT-24436 CODE MODEL APD043A ATSC UHF TRANSMITTER APD047A ATSC VHF-III TRANSMITTER APD045A ATSC VHF-I TRANSMITTER SS 96 Km 113 70027 Palo del Colle (Ba) ITALY Tel. +39 (0)80 626755 Fax +39 (0)80 629262 E-mail: elettronika@elettronika.it Web site: http://www.elettronika.
Summaries ATSC Transmitter Family .................................................................................................. 2 Summaries ......................................................................................................................... 3 Warning .............................................................................................................................. 7 Warranty ................................................................................................
- Power supply voltages (-5V, +12V, -12V) ............................................................ 29 - No communication, Temperature and Generic modulator alarm ......................... 29 - External reference alarm ..................................................................................... 29 - ASI/SMPTE inputs alarm ..................................................................................... 29 1.4.10 AGC: Implementation and Details ................................................
- Output submenu.................................................................................................. 59 - Precorrection submenu ....................................................................................... 59 3.4.4 Setup Menu ...................................................................................................... 60 - Control submenu ................................................................................................. 61 - Display submenu ...................
- SCH0417A Component list ..................................................................................... 83 - MTF0118A 5W VHF-I/III RMS Amplifier Module .......................................................... 84 - Description .............................................................................................................. 84 - Technical Characteristics ........................................................................................ 84 - MTF0118A Component list ................
WARNING The apparatus described in this manual has been designed and manufactured with devices to safeguard the users. In any case it is recommended that during any operation of installation, maintenance, miscellaneous interventions and calibrations requiring the apparatus to be switched on, THE USER TAKES ALL THE PRECAUTIONS AGAINST INCIDENTS It is required to use the proper clothes and protection gloves in order to prevent damages from incidental contacts with high-voltage parts.
Warranty Summary of warranty We, ELETTRONIKA S.r.l., SS096 Km 113 Z.I. PALO DEL COLLE (BA) ITALY, warrant to the ORIGINAL PURCHASER of a NEW product, for a period of one (1) year from the date of purchase by the original purchaser (the “warranty period”) that the new ELETTRONIKA product is free of defects in materials and workmanship and will meet or exceed all advertised specifications for such a product.
INTRODUCTION The apparatus described in this manual is the latest of this series, offering high performances, remarkable reliability and a wide range of characteristics, it all at a competitive cost. Its is easy to install and use. It only takes to follow the installation procedure as shown in this manual: after having removed all from the package, you only have to follow step by step the description in the various sections.
WARNING! The currents and voltages in this equipment are dangerous! Personnel must at all times observe safety regulation! This manual is intended as a general guide for trained and qualified personnel who are aware of the dangers inherent in handling potentially hazaedous electrical and electronic circuits. It is not intended to contain a complete statement of all safety precautions which should be observed by personnel in using this or other electronic equipment.
Treatment of electrical shock 1) If victim is not responsive follow the A, B, C’s of basic life support. PLACE VICTIM FLAT ON HIS BACK ON A HARD SURFACE A - AIRWAY B - BREATHING If unconscious, open airway lift up neck, push forehead back, clear out mouth if necessary, observe for breathing. If not breathing, begin artificial breathing. Tilt head, pinch nostrils, make airttght seal, 4 quick full breaths. Remember mouth to mouth resuscitation must be commenced as soon as possible.
2) If victim is responsive: - keep them warm; - keep them as quiet as possible; - loosen their clothing (a reclining position is recommended). FIRST-AID Personnel engaged in the installation, operation, maintenance or servicing of this equipment are urged to become familiar with first-aid theory and practices. The following information is not intended to be a complete first-aid procedure, it is brief and is only to be used as a reference.
Communication N°1 -2002/95/CE - RoHS Directive Further to the directives issued by the European Community, 2002/95/CE, 2002/95/CE and 2003/108/ CE, and to the Italian Decree of Law n° 151 dated 25 July 2005, this is to inform the customers of Elettronika S.r.l.
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DIGITAL TV ATSC TRANSMITTER User’s manual 15
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Section 1 - Information Contents: 1.1 Description 1.2 Main features 1.3 Technical characteristics Front panel Rear panel Block Diagram 1.
ATSC TRANSMITTER 1.1 DESCRIPTION The ATSC TRANSMITTER is an 8-VSB ATSC professional exciter, designed for the most demanding digital TV broadcasting applications. It integrates a modulator module with up-to-date FPGA technology and advanced digital signal processing algorithms in order to generate an absolutely accurate output 8-VSB signal, with exceptionally optimized modulation and the output filtering techniques.
1.3 TECHNICAL CHARACTERISTICS SIGNAL PROCESSING SECTION Reference Standard ........................................................................................................................... ATSC A/53, A/54, A/64 ATSC Mode ....................................................................................................................................... 8-VSB 2/3 Trellis Code Constellation ............................................................................................................
Front panel 1 Graphical LCD 2 Rotating Knob 3 Status LEDs 4 RS232 Socket 5 RF Monitor Connector 2 4 3 5 DESCRIPTION 1 RS232 for Serial pin-to-pin connection to PC with ERCos software and for firmware upgrade 20 Pin 2: TX Pin 3: RX Pin 5: GND
Rear panel 1 Main Switch 2 AC Socket with Fuse-Holder (2A) 3 RS485 Socket 4 Telemeasures Connector 5 TS Input Connectors - ASI1 Input - ASI2 Input - SMPTE1 Input - SMPTE2 Input 6 10MHz OUT Connector 7 10MHz IN Connector 8 RF Output Connector SMPTE2 SMPTE1 ASI2 ASI1 RF OUT 6 8 7 10MHz OUT Wired Telemeasures connector 10MHz IN 5 4 RS485 TELEMEASURES 3 1 LINE SOCKET 2 DESCRIPTION Pin 1: FWD power (Analog out) Pin 2: REF power (Analog out) Pin 3: Temperature (Analog out) Pin 4:
SMPTE2 INPUT SMPTE1 INPUT ASI2 INPUT ASI1 INPUT 8-VSB MODULATOR 90-250Vac POWER SUPPLY 10MHz IN BANDPASS FILTER 10MHz OUT OUTPUT AMPLIFIER RS485 TELEMEASURES CONTROL & MONITORING RS232 DUAL-STAGE FREQUENCY CONVERTER SYNCHRONIZATION AGILE LOW-NOISE SYNTHESIZER DIGITAL-TO-ANALOG CONVERTER MONITORING OUTPUT RF OUTPUT Block diagram REDUNDANCY CONTROL
1.4 OPERATIONAL DETAILS All the sections of the ATSC TRANSMITTER, as showed in the block diagram above, are described in this chapter in order to give the user a general understanding of the operations of the equipment. 1.4.1 TS INPUT MANAGEMENT The ATSC TRANSMITTER is equipped with 2 ASI inputs and 2 SMPTE-310M inputs. Each input standard is available with two inputs in order to enable redundant operation for the transport stream input.
- Smart Switching The modulator input interface includes an advanced management feature, called Smart Switching, that allows an automatic switching from the primary to the secondary MPEG-TS input in case of errors on the Transport Stream packets. The Smart Switching feature can be enabled or disabled. The Smart Switching is based on a counter and a threshold: erroneous packets counter (Err Counter) and erroneous packets threshold (Err Threshold).
- an error in the input signals is present (input TS missing and Mute on input error feature enabled). In the first condition, the output is muted to protect valuable internal parts of the equipment and/or save power. In the second condition, the output is muted because the signal is most probably unusable by receivers. This muting action is known as Squelch.
1.4.4 NON-LINEAR PRECORRECTION Any solid-state or tube power amplifier will produce intermodulation distortion when fed by the ATSC 8VSB signal. Non-linear precorrection is used to compensate the effects of these distortions in order to radiate a signal with the maximum possible MER value. The ATSC TRANSMITTER is able to perform non-linear precorrection over a 20MHz bandwidth. For this purpose, two tables (AM-AM and AM-PM) of maximum 16 taps are used by the modulator.
power cycle. - Monitoring the status of the equipment. - Recording events and alarms. - Firmware upgrades. - Digital Precorrection through RS232 port and dedicated PC software interface. 1.4.7 TEST MODES Two test modes are available, to be used only for laboratory or field test. The test modes are directly accessible from the user menus and are: 1) PRBS Sequence: the ASI/SMPTE input signals are ignored and a 23-bit PRBS sequence replaces the input payload of the MPEG-TS packets.
Moving from MUTE to POWER ON state (for example, after switching on or when an active alarm disappears) is performed by moving through a temporary POWER UP state. Instead, moving from POWER ON to MUTE state (for example, when a serious alarm occurs or the ASI/SMPTE inputs are corrupted or absent) is immediate. 1.4.9 ALARMS AND AUTOMATION The ATSC TRANSMITTER is fully protected against any malfunctioning event that could damage the expensive internal components.
internal parts should reach safe temperature levels. In some circumstances (for example, when a fan is blocked or damaged), the temperature may increase too much, and some internal components may break. In order to avoid this unpleasant situation, a temperature alarm occurs when the temperature is over a maximum threshold (75°C). This alarm triggers an immediate powering off of the output signal and an increase of the lockout counter.
conditions. They are: - MPEG-TS synchronization missing; - uncorrected input packet (only in 204 RS coded mode with ASI input mode); - bit rate underflow/overflow (only if bit rate adaptation is performed). The above conditions trigger an alarm only for the input which is currently used by the ATSC TRANSMITTER. 1.4.10 AGC: IMPLEMENTATION AND DETAILS The use of external AGC helps the ATSC TRANSMITTER to maintain stable the output power of a highpower transmitter.
The distance of the thresholds from the optimal value is of ±20mV and ±30mV measured as monitor voltage. The AGC changes the output power to bring the power from the amplifier inside the goal thresholds range. When this goal is achieved, the AGC stops until the power goes outside the action thresholds range.
1.14.11 LOG The ATSC TRANSMITTER is provided with an internal non-volatile memory used to store up to 200 events in a log. For each event, the date, time and a description are stored in order to help the user in understanding the sequence of the events and the cause of each alarm. The log can be viewed locally on the display (see the LOG screen in the Menu Management paragraph) or by remote. It is possible to clear the log contents only locally.
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Section 2 - Installation Contents: 2.1 Operating environment 2.2 First installation 2.3 ATSC TRANSMITTER with GPS Clock Source 2.4 ATSC TRANSMITTER remote control with Elettronika RCU 2.
2.1 OPERATING ENVIRONMENT You can install the apparatus in a standard component rack or on a suitable surface such as a bench or desk. In any case, the area should be as clean and well-ventilated as possible. Do not locate the transmitter directly above a hot piece of equipment. 2.
2.3 ATSC TRANSMITTER WITH GPS CLOCK SOURCE 1. Connect the 10MHz reference only for higher stability or frequency locking purposes 2. The 1PPS signal is not used for ATSC operation, so leave this output not connected. TELEMEASURES RF OUT 10MHz IN ASI1 10MHz OUT ASI2 LINE SOCKET SMPTE1 RS485 SMPTE2 10MHz OUT GPS CLOCK SOURCE 2.
2.
Section 3 - Operation Contents: 3.1 Local control 3.2 LEDs 3.3 Menu management 3.4 Parameters and menu description 3.5 Log screen 3.6 Alarm screen 3.
3.1 LOCAL CONTROL A large number of options of the ATSC TRANSMITTER can be easily and intuitively controlled through the human-to-machine interface on the right side of the front panel. This is composed by a graphic display, a clickable knob and three LEDs. Right after switching on, a screen showing the initialization process appears on the display. During this time the controller checks the good communication among internal parts of the equipment. 3.
important parameters are also shown in this screen. Pressing the knob while in this menu you will be directed to the RF Power menu for a quick intervention during emergency situations. 3.3.1 TITLE BAR On the top of the display, the title bar is shown. It is always visible during browsing the various menus and screens. In the bar two pieces of information are present. • The name of the screen is displayed on the left (DIAGRAM in the case of the first screen).
• The Forward Power is shown about at the centre of the status bar. It is indicated in Watt. This is the power as it is measured by the directional coupler at the very last stage of the power amplifier, just before the output connector. When the RF is muted, the word MUTE is shown instead of the output power. • The Reflected Power is shown next to the Forward Power. It is indicated in Watt.
From the first screen (DIAGRAM screen), it is possible to rotate the knob to the left to enter the MAIN MENU screen. In this screen six icons (INPUT, MOD, RF, SETUP, LOG, ALM) are shown, arranged in 2 lines of 3 icons. The selected icon is drawn in reverse colours. By moving from the DIAGRAM screen, the selected icon will be ALM, as in figure above. It is possible to select the other icons by rotating the knob again to the left.
The ATSC TRANSMITTER is a complex piece of equipment and its setting could be a difficult task. The multitude of parameters are arranged in six tree-like menus, starting from the six top-level menu icons. In this way, it is simpler and more comfortable to find the desired parameter. 3.3.5 COMPOSITION OF A MENU An example menu (the RF menu) is depicted in the figure below. The title of the menu (RF in this example) is written at the leftmost side of the titlebar.
Even if it has leading dots, the “Exit...” item, the first item of all menus, isn’t a real submenu. By clicking on “Exit...”, it goes back to the parent menu, if any, browsing the tree-menu from the bottom to the top. If the menu is at the top-level, by choosing “Exit...” the menu icons screen is shown.
3.4 PARAMETERS AND MENUS DESCRIPTION This paragraph contains a detailed description of all the menus and parameters. Please be sure to read this section very carefully before changing any setting of the exciter. Check the menu map for a general overview of the parameters. The menus and parameters arrangement is subject to change, mostly with the control firmware version. Your arrangement could be slightly different than the one described in this manual.
- CONFIGURATION submenu Input (ASI1, ASI2, ASI Auto, SMPTE1, SMPTE2, SMPTE Auto) This parameter lets to change the input type (ASI or SMPTE) and the stream (1 or 2) used by the modulator. It's also possible to set the automatic selection mode (see TS INPUT MANAGEMENT paragraph for more information). Smart Switching Click on this item to enter Smart Switching submenu. VCT Click on this item to enter VCT submenu.
- SMART SWITCHING submenu See TS INPUT MANAGEMENT paragraph for more information on Smart Switching feature. Status (Enabled, Disabled) This parameter lets to enable/disable the Smart Switching. Switch Back (Enabled, Disabled) This parameter lets to enable/disable the Auto Switch Back. Err Thres (00000000-99999999) This parameter shows the Err Threshold (in packets) used for the Smart Switching. Click the know on this item to change its value. The reversed digit can be changed by knob rotation.
- VCT submenu VCT is the acronym for Virtual Channel Table. MCN Update (Enabled, Disabled) If this parameter shows Enabled, the Major Channel Number (MCN) field of the VCT is updated with the value below. If this parameter is disabled, the MCN field is untouched by the modulator. Freq. Update (Enabled, Disabled) If this parameter shows Enabled, the frequency field of the VCT is updated with the value below. If this parameter is disabled, the MCN field is untouched by the modulator.
- STREAM1 STATUS submenu MPEG sync (Present, Absent) If Absent is written, no MPEG sync is detected. Pckt length (188/204) This parameter shows the packet length detected on the stream1. The 204-bytes packets are detected if a true 16-bytes Reed-Solomon code is added to the packet (if the additional 16-bytes are null, the packet length is always indicated as 188). Uncorrected Pkt (No, Yes) If this parameter is Yes, incorrect input packet is detected (only in 204 RS coded input mode).
- STREAM2 STATUS submenu MPEG sync (Present, Absent) If Absent is written, no MPEG sync is detected. Pckt length (188/204) This parameter shows the packet length detected on the stream1. The 204-bytes packets are detected if a true 16-bytes Reed-Solomon code is added to the packet (if the additional 16-bytes are null, the packet length is always indicated as 188). Uncorrected Pkt (No, Yes) If this parameter is Yes, incorrect input packet is detected (only in 204 RS coded input mode).
- REFERENCES submenu 10MHz refer. (Int, Ext, ASI) This parameter shows the 10MHz reference source selection set by the user (Int, Ext, ASI). In case it is Ext or ASI and if the chosen reference is absent, the modulator automatically uses the internal reference. This is shown in parentheses. By clicking on this item, the user can change the 10MHz reference source. (See the Synchronization and Clocks paragraph for more information about the input reference stage of the modulator).
3.4.2 MODULATION MENU MODULATOR (OK, Err, Temo, No Comm) If the ATSC Modulator module is correctly working, this read-only parameter shows OK. If the modulator has an internal error or it doesn't communicate with the control board, it shows "Err" or "No Comm". If the internal temperature is too high, "Temp" is shown. Warning! If this parameter isn't OK, a serious malfunction of a core part of the ATSC TRANSMITTER is present.
3.4.3 RF MENU Frequency Click on this item to enter the Frequency submenu to read and/or modify the centre frequency and the bandwidth of the output signal. Power Click on this item to enter the Power submenu to control the output power level and to configure the AGC (see the AGC: Implementations and Details paragraph for more informations).
- FREQUENCY submenu Standard ([User], UHF, VHF) The user can set the output signal frequency by choosing Standard/Channel pair or by setting a custom frequency. At the time of printing this manual, the available standards are UHF and VHF. Others may be available with future firmware releases1. Channel (depending on the selected standard) The user can set the output signal frequency by choosing Standard/Channel pair or by setting a custom frequency.
- POWER submenu Power Control (Manual, Auto) This parameter sets the power control mode as either automatic (AGC) or manual. See the AGC: Implementation and details paragraph for more information. Warning! For safety operation it is better to set to 0% the power level that is not selected. For example, if the automatic power control mode is selected, it is better to set the manual power level to 0%. This way, after changing from automatic to manual, the output power will safely starts from zero level.
Ext AGC Status (—, Idle, Locked, Lowset, Alarm, Max, Min, Pull-up, Pull-down) This read-only parameter shows the current status of the external AGC that can be one of the following: • —: the external AGC is disabled; • Idle: the external AGC is stopped (e.g.
- AMPLIFIER submenu V This is a read-only parameter that shows the voltage of the RF amplifier stage, measured in Volt. If this value is outside the normal range, an alarm occurs and the value on the display blinks. I This is a read-only parameter that shows the current absorbed by the RF amplifier stage, measured in Ampere. If this value is outside the normal range, an alarm occurs and the value on the display blinks.
- OUTPUT submenu Spectrum (Normal, Inverted) This parameter enables or disables the spectrum inversion. RF Mute (Auto, ON) If you set this parameter to ON, the output is muted. If Auto is set, the output can be muted depending on some conditions. In this case, the current mute status is shown in parenthesis. Mute on In. Err (ON, OFF) If this parameter is set to ON, the output will be automatically muted whenever an error on ASI inputs occurs (for example if the inputs are absent).
3.4.4 SETUP MENU Control Click on this item to enter the Control submenu to configure the remote control and the password locking. Log Clear This is an “action parameter” and it is used to clear the log content. Be sure to read the latest events before clearing the log. After clearing, it isn’t possible to undelete the events. Factory Settings During the test phase of the machine, most of all parameters and adjustments are well defined and saved in a non-volatile memory.
- CONTROL submenu Control (Local, Remote) The ATSC TRANSMITTER is fully-controllable locally (by using the display and the knob) or by remote (by using RS232/RS485 serial ports). With this parameter it is possible to set local control or remote control. When local control is selected, only reading commands from remote will be answered, while writing commands will be denied. In this case, changing of settings is possible only locally.
- DISPLAY submenu Backlight (0÷100%) The graphical LCD has a white-LED backlight. Its intensity can be changed by software using this parameter. Differently from usual parameters, the modification immediately takes place when the user rotates the knob. When you reach the desired intensity level, click on the knob and reply “Yes” to the confirmation question to accept the new value. If you reply “No”, the value set before entering the parameter is restored.
- POWER SUPPLY submenu +5V This read-only parameter shows the +5V power supply voltage monitored by a voltage sensor. If this voltage is outside a reasonable range, an alarm occurs and the value starts blinking on the display (see the Alarms and automation paragraph for more information). +12V This read-only parameter shows the +12V power supply voltage monitored by a voltage sensor.
3.5 LOG SCREEN By clicking on the LOG icon, you enter the LOG screen. This isn’t a real menu, like the others, but only a log view. The first event shown is the first event in the log. Move the knob to scroll the log up/down. In the titlebar of the small centred window, the number of the event shown and the total number of events stored in the log are indicated. If the event is an alarm, a bell icon is drawn on the leftmost side of the titlebar.
The upgrade of the firmware should start. After upgrading, the equipment will automatically start with the new firmware. Warning! Keep in mind that the firmware upgrade is a critical task. You could have a non-working machine if the upgrading process doesn't end with success or if you download a wrong firmware.
ATSC Transmitter Menu Map
Section 4 - Diagram Contents: - APD043A UHF ATSC TRANSMITTER Cable Diagram - APD047A VHF-III ATSC TRANSMITTER Cable Diagram - APD045A VHF-I ATSC TRANSMITTER Cable Diagram - APD043A_APD047A_APD045A Component list - Modules description 67
20 POLES FLAT CABLE E0064 SP-320-27 SWITCHING POWER SUPPLY ASI1 ASI2 SMPTE1 RS232 16 POLES FLAT CABLE RS485 J2 RF MONIT.
20 POLES FLAT CABLE E0064 SP-320-27 SWITCHING POWER SUPPLY ASI1 ASI2 SMPTE1 SMPTE2 RS232 16 POLES FLAT CABLE RS485 J2 RF MONIT.
20 POLES FLAT CABLE E0064 SP-320-27 SWITCHING POWER SUPPLY ASI1 ASI2 SMPTE1 SMPTE2 RS232 16 POLES FLAT CABLE RS485 J2 RF MONIT.
Component list APD043A - APD047A - APD045A Elettronika Code Description Qty E0064 MTF0116AR0 MTF0118AR0 MTF0125AR0 DET0531I DET0600 07613 07602 A1592 A1703 PAN0187R0P 02700 02701 02699 02867 02695 02518 02519 05069 DET0670 DET0315 08502 08521 SCH0135AR1 02035 DET1322R1P DET1323R0P DET0876I CON0352R2S CON0353R0P FLR0002 FLR0003 FUS02A 02503A V0760 SP-320-27 DI SWITCHING POWER SUPPLY 5W RMS UHF AMPLIFIER MODULE 5W RMS VHF-III AMPLIFIER MODULE 5W RMS VHF-I AMPLIFIER MODULE DET0531AR1 FAN CONVEYER DET0600
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CONTROL BOARD AND DISPLAY SCH0135AR1 DESCRIPTION The Controller module, located on the right side of the DIGITAL TRANSMITTER, is the user interface of the whole modulator.
SCH0135AR1 Top layer Component layout 74
SCH0135AR1 Bottom layer Component layout 75
SCH0135AR1 COMPONENT LIST Part Name/Number Description Qty. Comps. BATT BH001RB 3093_90 CC 100nF-S 01065E 03093 03090 BATTERY HOLDER 01065E Y5V 0805 COND 1 26 CC 10nF-S 01053A CC 15pF-SS CC 1nF-S 01096A CC 1uF100V-S 01760A CC 220nF-S 01069B CC 47pF-S 01090B CE 10uF16V-S CE 10uF16V-S 01776A CE 22uF25V-S CE 47uF 16V-S CE 4u7F35V-S 01623A CE 4u7F35V-S 01774A CE D4 N. M. D BAS85-S D BAS85-S N. M.
Part Name/Number Description Qty. Comps. Page 2/2 J DB9_F-0° LT J FC-10P 02697-02699 J FC-16P 02701-02700 J FC-20P 02868-02867 R 0805 N. M. R 0R0-SS R 100K-S 00065C R 100R-S 00029B R 10K-S 00053C 02794 PCB CON. DB9 LONG T 02697+02699 PCB CON. POL 02701+02700 PCB CON. POL 02868+02867 PCB CON. POL N. M.
ATSC UHF MODULATOR MODULE DESCRIPTION The ATSC UHF Modulator module is a very high performance Digital TV modulator, fully compliant to the A/53 recommendation. The module includes highly linear 8-VSB modulation capability, excellent MER value, ASI and SMPTE-310M compatibility, digital pre-correction, low phase noise and high performance up converter.
ATSC VHF-I/III MODULATOR MODULE A1703 DESCRIPTION The ATSC VHF Modulator module is a very high performance Digital TV modulator, fully compliant to the A/53 recommendation. The module includes highly linear 8-VSB modulation capability, excellent MER value, ASI and SMPTE-310M compatibility, digital pre-correction, low phase noise and high performance up converter.
5W UHF RMS AMPLIFIER MODULE MTF0116AR0 DESCRIPTION The MTF0116A is the final stage of the 5W UHF RMS of the transmitter, based on LDMOS technology. It includes the final stage itself (SCH0417A), its cooling heatsink, and an interface board (SCH0388B) which allows to control the forward power, the reflect power, the Gain and the temperature.
MTF0116AR0 Component layout RF OUT RF MONITOR J2 J4 SCH0388B POWER SUPPLY BOARD J1 TP1 FWD FWD TP2 REF REF TP3 +5V +5V MTF0116A RF AMPLIFIER MODULE J5 J6 J7 TP4 +28V +28V TP7 GATE GATE TP8 CTRL CTRL J8 J9 RF IN GND 81
SCH0417AR0 Component layout 82
SCH0417AR0 COMPONENT LIST Part Name/Number Description Qty.
5W VHF-III RMS AMPLIFIER MODULE MTF0118AR0 DESCRIPTION The MTF0118A is the final stage of the 5W VHF RMS of the transmitter, based on MOS technology. It includes the final stage itself (SCH0436A), its cooling heatsink, and an interface board (SCH0388B) which allows to control the forward power, the reflect power, the Gain and the temperature.
MTF0118A Component layout RF OUT RF MONITOR J2 J4 SCH0388B POWER SUPPLY BOARD J1 TP1 FWD FWD TP2 REF REF TP3 +5V +5V MTF0118A RF AMPLIFIER MODULE J5 J6 J7 TP4 +28V +28V TP7 GATE GATE TP8 CTRL CTRL J8 J9 RF IN GND 85
SCH0436AR0 Component layout 86
SCH0436AR0 COMPONENT LIST Part Name/Number Description Qty. Comps. Page 1/2 CC 100nF-S 01065C 01065C Y5V 1206 CAPACITOR 11 CC 100pF-S 01092 CC 10pF-S 01086 CC 1206 N. M. CC 1nF 01041 CC 1nF-S 01096 01092 SMD 1206 CAPACITOR 01086 SMD 1206 CAPACITOR N. M.
Part Name/Number Description R 560R-1%-S 00038B R 56K-S R 68R-S 00027A R 75R-1%-S 00221B RV 50K-S-H/S 00797 TR BLF1043-S TR MRF373A-S 00038B RES 1/4W 1% SMD 1206 2 00062A RES 1/4W 5% SMD 1206 1 00027A RES 1/4W 5% SMD 1206 2 00221B RES 1/4W 1% SMD 1206 2 00797 SMD VARIABLE RESISTOR 3 03469 LDMOS TRANSISTOR 2 04031A LDMOS TRANSISTOR 1 88 Qty. Comps.
5W VHF-I RMS AMPLIFIER MODULE MTF0125AR0 DESCRIPTION The MTF0125A is the final stage of the 5W VHF-I RMS of the transmitter, based on MOS technology. It includes the final stage itself (SCH0320A), its cooling heatsink, and an interface board (SCH0388B) which allows to control the forward power, the reflect power, the Gain and the temperature.
MTF0125A Component layout RF OUT RF MONITOR J2 J4 SCH0388B POWER SUPPLY BOARD J1 TP1 FWD FWD TP2 REF REF TP3 +5V +5V MTF0125A RF AMPLIFIER MODULE J5 J6 J7 TP4 +28V +28V TP7 GATE GATE TP8 CTRL CTRL J8 J9 RF IN GND 90
SCH0320AR0 VHF-I Amplifier Board Component layout 91
SCH0320AR0 COMPONENT LIST Part Name/Number Description CC 100nF-S 01065C CC 10nF 01053 CC 1206 N. M.
POWER SUPPLY INTERFACE BOARD SCH0388BR1 SCH0388BR1 Component layout 93
SCH0388BR1 COMPONENT LIST Part Name/Number Description Qty. Comps. CC 100nF-S 01065C CC 1206 N. M.
SP-320-27/48 SWITCHING POWER SUPPLY E0064 MAIN FEATURES - Universal AC input / Full range - Built-in active PFC function, PF >0.95 - Protections: Short circuit / Over load / Over voltage / Over temp. - Forced air cooling by built-in DC fan - Built-in fan speed control - Fixed switching frequency at 100kHz MECHANICAL SPECIFICATION AC/L 2 AC/N 3 FG 4-5 DC OUTPUT -V 6-7 DC OUTPUT +V 215 32.
TECHNICAL CHARACTERISTICS MODEL 48V RATED CURRENT 11.7A 6.7A CURRENT RANGE 0 ~ 11.7A 0 ~ 6.7A RATED POWER 315.9W 321.6W (max.) Note 2 VOLTAGE ADJ. RANGE VOLTAGE TOLERANCE Note 3 LINE REGULATION INPUT (Note 4) OTHERS 96 ± 1.0% ± 1.0% ± 0.2% ± 0.2% ± 0.5% 800ms, 50ms/230VAC HOLD UP TIME (Typ.) 16ms/230VAC ± 0.5% VOLTAGE RANGE 88 ~ 264VAC 47 ~ 63Hz POWER FACTOR PF>0.95/230VAC EFFICIENCY (Typ.) 88% AC CURRENT 5A/115VAC INRUSH CURRENT (Max.
