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Tektronix DS1001 User Manual

Tektronix DS1001 User Manual

Ds1000 series television demodulators
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User Manual
DS1000 Series
Television Demodulators
070-9858-01

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  • Page 1 User Manual DS1000 Series Television Demodulators 070-9858-01...
  • Page 2 Copyright © Tektronix, Inc. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved. Printed in the U.S.A.
  • Page 3 Tektronix, with shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located.

  • Page 5: Table Of Contents

    ..........Contacting Tektronix .
  • Page 6 Table of Contents Frequency Response Configuration ..... . 3–10 Contrast Adjustment ....... . . 3–12 User Defined Channel Table .
  • Page 7 Table of Contents TUNING ........B–29 .
  • Page 8 Table of Contents List of Figures Figure 1–1: Rear panel connectors ....1–5 Figure 1–2: Typical system configuration ....1–6 Figure 2–1: DS1000 series front panel .
  • Page 9 Table of Contents List of Tables Table 1–1: Power cord identification ....1–2 Table 3–1: Configure menu hierarchy ....3–1 Table 3–2: Frequency response adjustment bands .
  • Page 10 Table of Contents Table D–11: VHF France channel table ....D–16 Table D–12: VHF Italy channel table ....D–16 Table D–13: VHF Australia channel table .

  • Page 11: General Safety Summary

    General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. To avoid potential hazards, use this product only as specified. Only qualified personnel should perform service procedures. While using this product, you may need to access other parts of the system.
  • Page 12 General Safety Summary Safety Terms and Symbols Terms in This Manual. These terms may appear in this manual: WARNING. Warning statements identify conditions or practices that could result in injury or loss of life. CAUTION. Caution statements identify conditions or practices that could result in damage to this product or other property.

  • Page 13: Preface

    Preface This is the user manual for the DS1000 Series Television Demodula- tors. It contains information about the DS1000 Series of products which includes: DS1001 (NTSC), DS1002 (PAL B/G), and DS1003 (PAL I). Manual Overview Topics covered in this manual are as follows: H Getting Started includes a product description as well as installation and first-time power-on procedures.

  • Page 14: Contacting Tektronix

    6:00 a.m. – 5:00 p.m. Pacific time Or contact us by e-mail: tm_app_supp@tek.com For product support outside of North America, contact your local Tektronix distributor or sales office. Service Contact your local Tektronix distributor or sales Support office. Or visit our web site for a listing of worldwide service locations.

  • Page 15: Getting Started

    Getting Started...

  • Page 17: Product Description

    55.25 to 801.25 MHz for NTSC M/N and 45.25 to 860.25 MHz for PAL B/G, and I. The high performance of the conversion guarantees a measurement-quality signal after demodulation. Television demodulator Television system DS1001 NTSC DS1002 PAL B/G DS1003...

  • Page 18: Physical Dimensions

    Getting Started By applying an RF signal to the antenna input, the television demodulator provides baseband video and audio outputs and IF output signals. You can set tuning conditions for stored programs, which are held in non-volatile memory. Tune the signal by channel, frequency, or preset program.

  • Page 19: Standard Accessories

    H Two, 250 V, 1.6 A (1.6AT) replacement fuses (159-0366-00) H User Manual (070-9858-XX), this manual Optional Accessories You can order the following rackmounting kits from Tektronix: H TVGF11A adapter mounts a single instrument in a standard 19-inch rack. H TVGF13 adapter mounts two half-rack width instruments side-by-side in a standard 19-inch rack.

  • Page 20: Electrical Installation

    Summary at the front of this manual. NOTE. Save the shipping carton and packing materials in case it becomes necessary to ship the television demodulator to a Tektronix Service Center for service or repair. Packaging instructions are on page C–1.

  • Page 21: Figure 1-1: Rear Panel Connectors

    Getting Started The television demodulator tests major circuits during power on and displays the following status messages: ROM test RAM test C test System Initialization When testing completes, the television demodulator displays the current RF setting. Figure 1–1: Rear panel connectors DS1000 Series User Manual 1–5...

  • Page 22: Mechanical Installation

    Getting Started Mechanical Installation The television demodulator requires no assembly. Please read the following sections before installing the television demodulator into a console or equipment rack. Figure 1–2 shows a sample connection in a system including a video monitor and an audio monitor. NOTE.

  • Page 23: Custom Installation

    20 inches (50.8 cm) in front of the rack for installation and removal. You can order the following rackmounting kits from Tektronix: H TVGF11A adapter mounts a single instrument in a standard 19-inch rack.

  • Page 24: Functional Check

    75 W. 7. Check for a modulated RF signal at 45.75 MHz. 8. Connect the 4.5 IF output (DS1001 model only) to a 100 MHz oscilloscope terminated in 75 W. 9. Check for a nominal 700 mVpp (+48 dBmV) signal.

  • Page 25: Operating Basics

    Operating Basics...

  • Page 27: Functional Overview

    The DS1000 Series Television Demodulators are typically used as part of a system that includes video and audio measurement equipment, such as the Tektronix VM100 Series Automated Measurement Set. Typical equipment connections are described in the Functional Check procedure on page 1–8 and are shown in Figure 1–2 on page 1–6.
  • Page 28 Operating Basics H Front Panel Display. The 2 line by 20 character liquid crystal display (LCD) is used to present unit configuration and status information. The LCD uses “supertwist” technology allowing a wide viewing angle. The LCD is illuminated with an LED back light, which enables its use in areas with low light levels.

  • Page 29: Rear Panel Connectors

    Operating Basics Rear Panel Connectors This section describes the rear panel connectors, which are illustrated in Figure 2–2. NTSC Figure 2–2: Rear-panel connectors for NTSC and PAL models H Power Input Connector. Accepts the AC power cord assembly that is shipped with the product. H Fuse Holder.

  • Page 30: Operating Procedures

    Operating Basics H VIDEO O/P. Provides a standard 1 volt video output with nominal 75 W impedance. The NTSC model has one output and the PAL models have two identical VIDEO O/P outputs. See Figure 2–2. H 4.5 MHz O/P. (NTSC only) Provides a buffered 4.5 MHz audio subcarrier output with nominal 75 W impedance.

  • Page 31: Selecting Display Modes

    Operating Basics Once the self-tests complete, the unit initializes itself, which takes about 1 second to perform if the internal non-volatile memory is valid. If the memory has been corrupted or damaged, then the television demodulator will attempt to load factory default settings. This process takes 5 to 10 seconds.
  • Page 32 Operating Basics the dashes are replaced by blocks ‘J’ from the left, until all dashes have been replaced (RF amplitude > 1 mV). 2. Audio Output Status. The audio output display shows the current status of the audio signals on the XLR connectors located on the rear panel. 3.
  • Page 33 6. Firmware revision. The firmware revision display shows the firmware number and the revision number of firmware in the television demodulator. You will need this revision number when reporting problems in operation to Tektronix representatives. DS1000 Series User Manual 2–7...

  • Page 34: Selecting A Program

    Operating Basics 7. Temperature status. The temperature status display shows when the internal SAW filter reaches its normal operating temperature. The status is one of the following readouts: H LOW. The television demodulator has not reached its normal operating temperature. H NORMAL.

  • Page 35: Adjusting The Current Program

    Operating Basics program becomes the active program and will be recalled the next time you power on the unit. Adjusting the Current Program You can temporarily adjust the channel number and frequency while in the system status display. Use the up and down buttons ( and ) to change the channel and the left and right buttons to change the frequency.
  • Page 36 Operating Basics DS1000 Series User Manual 2–10...

  • Page 37: Reference

    Reference...

  • Page 39: Configuring Operation

    Reference This section describes how to configure the television demodulator to fit your application. Configuring Operation The television demodulator has many configurable parameters which it stores in non-volatile memory. Use the Configuration menu to select items. Table 3–1 lists the configurable items in the sequence that they appear.

  • Page 40: Quick Guide

    Reference Table 3–1: Configure menu hierarchy (cont.) Configure menu Selections Range Audio Preference NTSC: BTSC PAL: NICAM, FM Audio Input Select NTSC: Mono, Mono-SAP, Stereo, SAP PAL: Mono1, Mono2, Mono1-Mono2, Stereo AFC Status On, Off Sound Trap On, Off Stereo Noise NTSC: 1–16 SAP Noise NTSC: 1–16...

  • Page 41: Program Configuration

    Reference 4. Use the up and down buttons ( and ) to select a configuration item. Use the left and right buttons ( ) to change the selected configuration item. 5. Press the CONFIG button after making the desired changes. If you have made no changes, then the Configuration menu returns.
  • Page 42 Reference The television demodulator contains a wide variety of frequency tables that list the channel assignments used in many countries. The channel assignments cover the standard television frequency spectrum. You can select a frequency table using the FT item. Only one frequency table can be active for an individual program, but different programs can use different frequency tables.
  • Page 43 Reference and the previous channel selection interact. Changing either one will change the other. 4. ZCP. The zero carrier pulse (ZCP) is a special feature of the television demodulator. You configure the ZCP feature using the ZCP status, ZCP line, and ZCP position items. The ZCP status item determines whether the ZCP signal is on or off.
  • Page 44 Reference 5. Audio Preference. For NTSC systems, the audio preference is set to BTSC with no other options. For PAL systems, the audio preference item determines which audio system has primary control. The choices are NICAM and FM. If the primary choice signal is not present, then the secondary choice takes control.
  • Page 45 Reference or to a frequency that is between the standard 0.25MHz frequency steps. The AFC function is not normally required for broadcast signals and should be used with caution because of its limited range of ±1 MHz about the video carrier frequency. The options for the AFC item are either on or off.

  • Page 46: Serial Configuration

    Reference Serial Configuration The Serial Set–up selection in the Configure menu, allows you to set the communications parameters of the serial port on the rear-panel. To modify the serial port setup, press the CONFIG button to access the Configure menu. Use the up and down buttons ( and ) to select SERIAL SET–UP.
  • Page 47 Reference The RS485 communications protocol allows connection of multiple units to one host. Each device connected to the host must have a unique address. The range for the unit address is 32 to 63. 3. RS232 RTS/CTS status. DISABLED ENABLED Enables or disables hardware handshaking on the serial port when in the RS232 serial mode.

  • Page 48: Frequency Response Configuration

    Reference Frequency Response Configuration In the television demodulator system there are two levels of frequency response adjustment. The first is factory set and cannot be adjusted from the front panel. The second is the manual frequency response item which allows minor adjustments to the frequency response. Use caution when changing the manual frequency response and do so only when connected to equipment that can measure the changes to frequency response.

  • Page 49: Table 3-2: Frequency Response Adjustment Bands

    Reference Table 3–2: Frequency response adjustment bands Low band Mid band High band 40.00 – 47.75 MHz 170.00 – 179.75 MHz 454.25 – 469.75 MHz 48.00 – 55.75 MHz 180.00 – 189.75 MHz 470.00 – 489.75 MHz 56.00 – 63.75 MHz 190.00 –...

  • Page 50: Contrast Adjustment

    Reference Table 3–2: Frequency response adjustment bands (cont.) Low band Mid band High band 410.00 – 419.75 MHz 420.00 – 429.75 MHz 430.00 – 439.75 MHz 440.00 – 454.00 MHz Contrast Adjustment The Contrast Adjust selection in the Configure menu, allows you to set the contrast of the front-panel LCD display.

  • Page 51: User Defined Channel Table

    Reference User Defined Channel Table The User Channel Table selection in the Configure menu, allows you to store several custom channel and frequency combinations in the User Channel Table. To create or modify the User Channel Table, press the CONFIG button to access the Configure menu.
  • Page 52 Reference DS1000 Series User Manual 3–14...

  • Page 53: Appendices

    Appendices...

  • Page 55: Appendix A: Performance Specifications

    Appendix A: Performance Specifications The instrument specifications listed in this section are either performance requirements or reference information. Performance requirements are valid over an ambient temperature range of 5 C to 35 C, unless otherwise noted. Ensure that test equipment used to verify performance requirements is calibrated and working within its specified limits.

  • Page 56: Table A-1: Video Specifications

    Appendix A: Performance Specifications Table A–1: Video specifications Category Product Description RF Tuning Range DS1001 55.25 – 801.25 MHz DS1002/3 48.25 – 860.25 MHz (under range to 45.25 MHz) IF Frequency Visual DS1001 45.75 MHz DS1002/3 38.9 MHz Aural DS1001 41.25 MHz...

  • Page 57: Table A-2: Audio Specifications

    Category Product Description Frequency response DS1001 0.7 dB, 100 kHz to 3.58 MHz (18°C to 26°C) 1.0 dB, 100 kHz to 3.58 MHz (5°C to 35°C) 2 dB, 3.58 MHz to 4.1 MHz (typical) 0.7 dB, 100 kHz to 4.43 MHz (18°C to 26°C) DS1002/3 1.0 dB, 100 kHz to 4.43 MHz (5°C to 35°C)

  • Page 58: Table A-3: Electrical Specifications - Power Requirements

    Appendix A: Performance Specifications Table A–3: Electrical specifications – power requirements Category Description Line Voltage Ranges 95 to 240 VAC 10% Power Consumption 30 VA Maximum Line Frequency 50/60 Hz Fuse 1.6AT, 250 V (20 mm ceramic) Table A–4: Environmental characteristics Category Description Operating Temperature...

  • Page 59: Table A-6: Certifications And Compliances

    Appendix A: Performance Specifications Table A–6: Certifications and compliances Category Description EC Declaration of Meets intent of Directive 89/336/EEC for Electromagnetic Conformity – EMC Compatibility. Compliance was demonstrated to the following specifications as listed in the Official Journal of the European Communities: EN 50081-1 Emissions: EN 55022...

  • Page 60: Table A-7: Safety Certification And Compliance

    Appendix A: Performance Specifications Table A–6: Certifications and compliances (cont.) Category Description UL3111-1 – Standard for electrical measuring and test equipment CAN/CSA C22.2 No. 1010.1 – Safety requirements for electrical equipment for measurement, control and laboratory use Installation Category Terminals on this product may have different installation Descriptions category designations.

  • Page 61: Table A-8: Safety Standards

    Appendix A: Performance Specifications Table A–8: Safety standards Category Description U.S. Nationally Recognized ANSI/ISA S82.01 – Safety Standard for Electrical and Testing Laboratory Listing Electronic Test, Measuring, Controlling, and Related Equipment, 1994 UL3111-1 - Standard for Electrical Measuring and Test Equipment Canadian Certification CAN/CSA C22.2 No.
  • Page 62 Appendix A: Performance Specifications DS1000 Series User Manual A–8...

  • Page 63: Appendix B: Remote Control

    Appendix B: Remote Control This appendix describes how to remotely control the television demodulator. This appendix provides the following information: H Serial port connection H Programming model H Command syntax descriptions H Alphabetical list of commands Serial Port Connection CAUTION. Connecting or disconnecting cables while the television demodulator is powered on can result in damage to its input circuits.

  • Page 64: Figure B-1: Pin Assignments For The Serial Connector

    Appendix B: Remote Control 5 4 3 2 1 9 8 7 6 Figure B–1: Pin assignments for the SERIAL connector Table B–1: Rear-panel SERIAL port connections Function Function RS485 B Not Used RS232 TxD RS232 CTS RS232 RxD RS232 RTS Not Used RS485 A Signal Ground...

  • Page 65: Programming Model

    Appendix B: Remote Control Programming Model The television demodulator uses the BCP Simplified Communication Link protocol (SCL). With the SCL Protocol, you program a PC to send and receive data using standard I/O functions found in most programming languages, such as C, PASCAL, and BASIC. The SCL protocol supports asynchronous binary communication, not text or ASCII based.

  • Page 66: Remote Operation Flag

    Appendix B: Remote Control addresses, refer to page B–5. The addresses perform the following functions: H Device address (Ad) is set to 0F hex in all television demodulators. The PC uses the device address to initiate communication with a television demodulator. H Remote address (Ar) is unique for each television demodulator.

  • Page 67: Command Types

    Appendix B: Remote Control Command Types There are two types of commands. H Select commands end with an equal sign (=), such as “PRESET=”. Select commands set the television demodulator to operate in any mode allowed from the front panel. H Query commands end with a question mark (?), such as “PRE- SET?”.

  • Page 68: Send Data Phase

    Appendix B: Remote Control this address data aborts all other communication on the bus. The following three cases show variations of the send address phase. The PC addresses a television demodulator that is not ready to receive data: PC > [DLE] [ENQ] [Ad] [Ars] Addressing phase DS1000 >...

  • Page 69: Receive Address Phase

    Appendix B: Remote Control DS1000 > [DLE] [ACKO] [Ad] [Ars] Ready response PC > [DLE] [STX] [Data] [DLE] [ETX] Data phase The PC addresses a television demodulator that is not ready, ignores the not ready response, and sends data: PC > [DLE] [ENQ] [Ad] [Ars] Addressing phase DS1000 >...

  • Page 70: Polling For Status Messages

    Appendix B: Remote Control If the byte 10 hex is part of the data, this byte is sent twice so that it is not confused with DLE ETX (10 hex), which ends the data phase. Polling for Status Messages If a television demodulator has a message, it does not send it to the PC, because more than one television demodulator can be connected to the same remote interface bus.

  • Page 71: Getting A Message

    Appendix B: Remote Control DS1000 > [DLE] [STX] [Ad] [Arr] [DLE] [ETX] Data phase The PC continuously polls the television demodulator. PC > [DLE] [ENQ] [Ad] [Ars] Send Addressing phase DS1000 > [DLE] [ACKO] [Ad] [Ars] Ready phase PC > [DLE] [STX] ['PATH?'] [DLE] [ETX] Data phase PC >...
  • Page 72 Appendix B: Remote Control The PC acknowledges the data by sending the MSG= command followed by the data bit pattern. The PC resumes polling, but clears the message data as it reads the message. PC > [DLE] [ENQ] [Ad] [Ars] Send addressing phase DS1000 >...

  • Page 73: Command Syntax

    Appendix B: Remote Control Command Syntax The command descriptions follow a consistent format. The elements of that format are discussed here. Description. Gives the function of the command, conditions of its use, and its interactions with other commands. Syntax. Gives the valid select and query command forms. The required arguments are listed in their proper order.

  • Page 74: Data Offset

    Appendix B: Remote Control Data Offset The offset is the relative position of a data item in the transmitted or received data. The first bit in a data transfer is number 1, so the first byte has an offset of 1. DS1000 Series User Manual B–12...

  • Page 75: Remote Command Descriptions

    Appendix B: Remote Control Remote Command Descriptions The following remote commands appear in alphabetical order. Sets or requests the current AFC status. The television demodulator must be in the remote state to use this command. Syntax AFC= AFC? Arguments <afc_state> Either 0 for off or 1 for on. Examples Command Result...

  • Page 76: Aud_Out

    Appendix B: Remote Control AUD_OUT Selects or requests the audio output mode. The television demodulator must be in the remote state to use this command. Syntax AUD_OUT= <aud_val> AUD_OUT? <aud_status> Arguments Argument Format Description <aud_val> byte Left/Right (PAL) Left/Right (NTSC) 0: Mono1/Mono1 Mono/Mono 1: Mono2/Mono2...

  • Page 77: Aud_Pref

    Appendix B: Remote Control AUD_PREF Sets or requests the current audio control preference if both FM and NICAM signals are present. The television demodulator must be in the remote state to use this command. Syntax AUD_PREF= <ap_state> AUD_PREF? Arguments <ap_state> is either 0 for FM or 1 for NICAM. Examples Command Result...

  • Page 78: Btsc

    Appendix B: Remote Control BTSC Sets or requests the stereo and SAP noise threshold for the BTSC controller. The television demodulator must be in the remote state to use this command. Syntax BTSC= <stnt_val><sapnt_val> BTSC? Arguments Byte Argument Format Description offset <stnt_val>...

  • Page 79: Channel

    Appendix B: Remote Control CHANNEL Sets or requests the selected channel record number and frequency table of the television demodulator. Sending the CHANNEL= command automatically sets the tuning mode to CHANNEL. The television demodulator must be in the remote state to use this command.

  • Page 80: Disc

    Appendix B: Remote Control Examples Command Result `CHANNEL=`1 18 NTSC: Table 1, CATV HRC frequency table is selected. Channel record 18 selected = channel number 19 PAL: UHF EUROPA frequency table selected. Channel record 18 selected = channel number 39 DISC Puts the television demodulator in the local state, which enables the front panel controls and clears the remote flag.

  • Page 81: Freq

    Appendix B: Remote Control FREQ Sets or requests the demodulation frequency. Setting the frequency automatically sets the tuning mode to FREQ TUNE. See the command description for TUNING. The television demodulator must be in the remote state to use this command. Syntax FREQ= <freqH_val><freqL_val>...

  • Page 82: Idn

    <device> Char(10) Model (‘DS1001’) <version> Char(6) Software version (‘V01.00’) <unit_loc> Char(20) Custom name (‘DEMOD2’) Examples Command Result `IDN?' `DS1001 V01.00'`DEMOD2' The model is DS1001, the software is version 1.00 and the custom name is DEMOD2. DS1000 Series User Manual B–20...

  • Page 83: Log? (Query Only

    Appendix B: Remote Control LOG? (Query only) Requests the remote state of the television demodulator. Use the command PWD to start remote operation and DISC to return to local operation. Syntax LOG? Arguments <remote flag> 0 for local control, 1 for remote Returns <remote flag>...

  • Page 84: Msg_C

    Appendix B: Remote Control Returns Bitmap of <state> Description of True state (1) b7: Invalid remote command Television demodulator received an invalid command b6: Wrong remote parameter Television demodulator received the wrong parameter b0 – b5: Not used Examples `MSG?' 128 decimal which equals 80h or 10000000b.

  • Page 85: Path

    Appendix B: Remote Control PATH Polls the television demodulator to check for status messages. The television demodulator returns its <Ad><Ads> addresses when there is a message and a null string when there are no messages. Use the MSG? command to get the actual status message. If the messages are disabled with the MSG_C command, the television demodulator will not have a message.

  • Page 86: Preset

    Appendix B: Remote Control PRESET Sets or requests the settings for one of the 20 programs without affecting the present operation of the television demodulator. Use the RECPRT command to activate a preset program number. The television demodulator must be in the remote state to use this command.

  • Page 87: Recprt

    Appendix B: Remote Control RECPRT Selects and makes active the current program (preset) or requests the current number. The data in <prog_nr> becomes the current setting of the television demodulator. This command sets the tuning mode to PROGRAM. This command is allowed only when the remote flag is true and when TUNING = 4, indicating the PROGRAM mode.

  • Page 88: Report? (Query Only

    Appendix B: Remote Control REPORT? (Query only) Requests the operating state of the television demodulator. The response is 0 when an active input signal is detected and 2 when no signal is detected. The television demodulator must be in the remote state to use this command.
  • Page 89 Appendix B: Remote Control Byte Setting Range Command/desc offset 1–2 freqH_val 45 to 860 FREQ 3–4 freqL_val 0 to 999 FREQ status_flags bitmap status Set the bit true (1) to enable the byte associated function: b7: x b6: ZCP control b5: audio mode selection bit b4: audio mode selection bit b3: audio preference NICAM...

  • Page 90: Strap

    Appendix B: Remote Control STRAP Sets or requests the status of the sound trap. The television demodula- tor must be in the remote state to use this command. Syntax STRAP= <strap_state> STRAP? Arguments <strap_state> Either 1 for On or 0 for Off. Examples Command Result...

  • Page 91: Tuning

    Appendix B: Remote Control TUNING Sets or requests the tuning mode. The tuning mode can be by channel, frequency, or from a programmed (preset) setting. The television demodulator must be in the remote state to use this command. Syntax TUNING=<tune_mode> TUNING? Arguments <tune_mode>...

  • Page 92: Zcp

    Appendix B: Remote Control Sets or requests the status of the zero carrier pulse (ZCP). The television demodulator must be in the remote state to use this command. Syntax ZCP= <zcp_state><zcp_line_no><zcp_position> ZCP? Arguments Byte Arguments Range offset <zcp_state> 0 for Off, 1 for On 2–3 <zcp_line_no>...

  • Page 93: Appendix C: Service

    The only serviceable part is the fuse, which is available on the rear panel. There are no user serviceable parts within the unit. Please return it to a Tektronix Service Center for service and calibration. Packaging for Shipment If it becomes necessary to ship the television demodulator to a Tektronix Service Center, follow these instructions: 1.

  • Page 94: Replacing The Fuse

    Appendix C: Service Replacing the Fuse 1. Disconnect the power cable from the television demodulator rear panel. 2. Remove the fuse holder by inserting a suitable instrument on either side of the holder and pulling straight out. 3. Remove the old fuse and replace it with a new fuse of the same type.
  • Page 95 Appendix D: Channel Tables This section contains the frequency and channel tables used by the television demodulator system. When manually selecting a channel, the television demodulator displays the channel name and number. When selecting a channel using the remote serial commands, the channel record number provides access to the channels.

  • Page 96: Appendix D: Channel Tables

    Appendix D: Channel Tables Table D–1: CATV HRC channel table Chan Freq Chan Freq Chan Freq (MHz) (MHz) (MHz) 234.00 384.00 72.00 54.00 240.00 390.00 60.00 246.00 396.00 66.00 252.00 402.00 78.00 258.00 408.00 264.00 414.00 84.00 174.00 270.00 420.00 180.00 276.00 426.00...

  • Page 97: Table D-2: Catv Irc Channel Table

    Appendix D: Channel Tables Table D–1: CATV HRC channel table (cont.) Chan Freq Chan Freq Chan Freq (MHz) (MHz) (MHz) 534.00 582.00 630.00 540.00 588.00 636.00 546.00 594.00 642.00 552.00 600.00 90.00 558.00 606.00 96.00 564.00 612.00 102.00 570.00 618.00 108.00 576.00 624.00...
  • Page 98 Appendix D: Channel Tables Table D–2: CATV IRC channel table (cont.) Chan Freq Chan Freq Chan Freq (MHz) (MHz) (MHz) 433.25 559.25 307.25 313.25 439.25 565.25 319.25 445.25 571.25 325.25 451.25 577.25 331.25 457.25 583.25 589.25 337.25 463.25 343.25 469.25 595.25 349.25 475.25...

  • Page 99: Table D-3: Catv Standard Channel Table

    Appendix D: Channel Tables Table D–3: CATV standard channel table Chan Freq Chan Freq Chan Freq (MHz) (MHz) (MHz) 55.25 241.25 391.25 61.25 247.25 397.25 403.25 67.25 253.25 77.25 259.25 409.25 83.25 265.25 415.25 175.25 271.25 421.25 181.25 277.25 427.25 433.25 187.25 283.25...
  • Page 100 Appendix D: Channel Tables Table D–3: CATV standard channel table (cont.) Chan Freq Chan Freq Chan Freq (MHz) (MHz) (MHz) 541.25 643.25 715.25 547.25 91.25 721.25 553.25 97.25 727.25 559.25 103.25 733.25 565.25 109.25 739.25 571.25 115.25 745.25 577.25 649.25 751.25 583.25 655.25...

  • Page 101: Table D-4: Standard Channel Table

    Appendix D: Channel Tables Table D–4: Standard channel table Chan Freq Chan Freq Chan Freq (MHz) (MHz) (MHz) 55.25 211.25 361.26 61.25 217.25 367.26 373.26 67.25 223.25 77.25 229.26 379.26 83.25 235.26 385.26 91.25 241.26 391.26 97.25 247.26 397.26 403.25 103.25 253.26 109.25...
  • Page 102 Appendix D: Channel Tables Table D–4: Standard channel table (cont.) Chan Freq Chan Freq Chan Freq (MHz) (MHz) (MHz) 511.25 613.25 715.25 517.25 619.25 721.25 523.25 625.25 727.25 529.25 631.25 733.25 535.25 637.25 739.25 541.25 643.25 745.25 547.25 649.25 751.25 553.25 655.25 757.25...

  • Page 103: Table D-5: Irc Channel Table

    Appendix D: Channel Tables Table D–5: IRC channel table Chan Freq Chan Freq Chan Freq (MHz) (MHz) (MHz) 55.25 205.25 355.25 61.25 211.25 361.25 367.25 67.25 217.25 73.25 223.26 373.25 79.25 229.26 379.25 85.25 235.26 385.25 91.25 241.26 391.25 397.25 97.25 247.26 103.25...

  • Page 104: Table D-6: Hrc Channel Table

    Appendix D: Channel Tables Table D–5: IRC channel table (cont.) Chan Freq Chan Freq Chan Freq (MHz) (MHz) (MHz) 505.25 553.25 601.25 511.25 559.25 607.25 517.25 565.25 613.25 523.25 571.25 619.25 529.25 577.25 625.25 535.25 583.25 631.25 541.25 589.25 637.25 547.25 595.25 643.25...
  • Page 105 Appendix D: Channel Tables Table D–6: HRC channel table (cont.) Chan Freq Chan Freq Chan Freq (MHz) (MHz) (MHz) 288.00 534.00 420.00 294.00 426.00 540.00 300.00 432.00 546.00 306.00 438.00 552.00 312.00 444.00 558.00 318.00 450.00 564.00 324.00 330.00 456.00 570.00 336.00 462.00...

  • Page 106: Table D-7: Broadcast Channel Table

    Appendix D: Channel Tables Table D–7: Broadcast channel table Chan Freq Chan Freq Chan Freq (MHz) (MHz) (MHz) 537.25 675.25 55.25 61.25 543.25 681.25 67.25 549.25 687.25 77.25 555.25 693.25 83.25 561.25 699.25 705.25 175.25 567.25 181.25 573.25 711.25 187.25 579.25 717.25 193.25...

  • Page 107: Table D-8: Uhf Europa Channel Table

    Appendix D: Channel Tables Table D–8: UHF Europa channel table Chan Freq Chan Freq Chan Freq (MHz) (MHz) (MHz) 471.25 607.25 743.25 479.25 615.25 751.25 487.25 623.25 759.25 495.25 631.25 767.25 503.25 639.25 775.25 511.25 647.25 783.25 519.25 655.25 791.25 799.25 527.25 663.25...

  • Page 108: Table D-9: Uhf China Channel Table

    Appendix D: Channel Tables Table D–9: UHF China channel table Chan Freq Chan Freq Chan Freq (MHz) (MHz) (MHz) 631.25 751.25 471.25 479.25 639.25 759.25 487.25 647.25 767.25 495.25 655.25 775.25 503.25 663.25 783.25 791.25 511.25 671.25 519.25 679.25 799.25 527.25 687.25 807.25...

  • Page 109: Table D-10: Vhf Europa Channel Table

    Appendix D: Channel Tables Table D–10: VHF Europa channel table Chan Freq Chan Freq Chan Freq (MHz) (MHz) (MHz) 48.25 196.25 335.25 55.25 203.25 343.25 62.25 210.25 351.25 69.25 217.25 359.25 76.25 224.25 367.25 83.25 231.25 375.25 105.25 238.25 383.25 391.25 112.25 245.25...

  • Page 110: Table D–11: Vhf France Channel Table

    Appendix D: Channel Tables Table D–11: VHF France channel table Chan Freq Chan Freq Chan Freq (MHz) (MHz) (MHz) 47.75 176.00 208.00 55.75 184.00 216.00 60.50 192.00 63.55 200.00 Table D–12: VHF Italy channel table Chan Freq Chan Freq Chan Freq (MHz) (MHz)

  • Page 111: Table D–14: Vhf China Channel Table

    Appendix D: Channel Tables Table D–14: VHF China channel table Chan Freq Chan Freq Chan Freq (MHz) (MHz) (MHz) 47.75 85.25 192.25 57.75 168.25 200.25 65.75 176.25 208.25 77.25 184.25 216.25 Table D–15: VHF Ireland channel table Chan Freq Chan Freq Chan Freq...

  • Page 112: Table D–17: Vhf South Africa Channel Table

    Appendix D: Channel Tables Table D–17: VHF South Africa channel table Chan Freq Chan Freq Chan Freq (MHz) (MHz) (MHz) 175.25 199.25 223.25 183.25 207.25 231.25 191.25 215.25 247.43 Table D–18: VHF OIRT channel table Chan Freq Chan Freq Chan Freq (MHz) (MHz)

  • Page 113: Appendix E: Factory Default Settings

    Appendix E: Factory Default Settings This section lists the factory default settings for user definable settings. All programs (presets) are set the same, so only the default setting for one program is shown. Table E–1: Program default settings Program item NTSC system PAL system Frequency Table...

  • Page 114: Table E–2: System Default Settings

    Appendix E: Factory Default Settings Table E–2: System default settings Item Default setting Active Program Position Message (IDN command) Set to ASCII space character Manual Frequency Response (All frequency steps) User Defined Channel Table 200.00 MHz (All channels) Serial Mode RS232 Unit Address RS232 Handshake Status...

  • Page 115: Glossary

    Glossary...
  • Page 117 Glossary Bandwidth The range of frequencies over which signal amplitude remains constant (within some limit) as it is passed through a system. Baseband The composite video signal before it modulates the picture carrier. Composite video that is distributed throughout a studio and is used for recording is at baseband.
  • Page 118 In television, it refers to one of the following descriptions: 1. An instrument, such as the Tektronix DS1001, which takes video in its transmitted form (modulated onto the picture carrier) and converts it to baseband.
  • Page 119 Glossary The undesirable coupling of the 50 Hz (PAL) or 60 Hz (NTSC) power sine wave into other electrical circuits. Intercarrier Sound A method used to recover audio information. Sound is separated from video by beating the sound carrier against the video carrier, producing a 4.5 MHz (NTSC) or 5.5 MHz (PAL) IF that contains the sound information.
  • Page 120 Glossary States, Canada, and Japan. Now, NTSC is generally used to refer to that standard. Phase Alternate Line. One of the television systems used in Europe and many other parts of the world. The phase of one of the color difference signals alternates from line to line to help cancel out phase errors.
  • Page 121 Glossary Termination An impedance at the end of a transmission line that matches the impedance of the source and of the line itself. Proper termination prevents amplitude errors and reflections. Video systems use 75 W transmission lines, so a 75 W terminator must be at the end of any signal path.
  • Page 122 Glossary DS1000 Series User Manual Glossary–6...

  • Page 123: Index

    Index...
  • Page 125 Index BTSC audio selection for NTSC, 3–6 Accessories remote command, B–16 optional, 1–3 Buttons standard, 1–3 arrow, 2–2 Address CONFIG, 2–2 RS485 addresses, B–3 DISPLAY, 2–2 setting for RS485 serial commu- enter, 2–2 nication, 3–8 left and right, 2–2 Adjust, frequency response, 3–10 PROGRAM, 2–2 up and down, 2–2 remote command, B–13...
  • Page 126 Index VHF China, D–17 channel table, 3–13 VHF Europa, D–15 display contrast, 3–12 VHF France, D–16 frequency response, 3–10 VHF Ireland, D–17 frequency table, 3–3 VHF Italy, D–16 menu hierarchy, 3–1 VHF New Zealand, D–17 operation, 3–1 VHF OIRT, D–18 overview of Configure menu, 3–1 VHF South Africa, D–18 programs, 3–3...
  • Page 127 Index description, 2–2 enter button, 2–2 Display modes LCD display, 2–2 audio output status, 2–6 left and right buttons, 2–2 firmware revision, 2–7 PROGRAM button, 2–2 instrument identification, 2–7 up and down buttons, 2–2 Functional check, 1–8 NICAM error count, 2–6 program set up, 2–6 Fuse selecting, 2–5...
  • Page 128 Index IF O/P, 2–4 Quad O/P, 2–3 Local state, DISC remote com- mand, B–18 LOG, remote command, B–21 Packaging for shipment, C–1 PATH, remote command, B–23 Performance requirements, specifi- Mains source, 1–4 cations, A–1 Maintenance Physical characteristics, A–4 cleaning, C–2 Pin out, of serial port, B–2 replacing the fuse, C–2 Polling...
  • Page 129 Index setting the audio mode, 3–6 RF input setting the noise threshold, 3–7 description, 2–4 setting the sound trap, 3–7 signal strength, 2–5 setting ZCP, 3–5 RS232 status display, 2–6 configuring, 3–8 handshaking, 3–9 Programming command syntax, B–11 protocol settings, B–2 command types, B–5 RS485 remote flag, B–4...
  • Page 130 Index selecting the port protocol, 3–8 Termination, for RS485 serial sending and receiving data, B–5 communication, 3–9 setting the port address for TUNING, remote command, B–29 RS485, 3–8 setting unit address for RS485, 3–8 termination for RS485, 3–9 Version number, location, 1–1 Serial number, location, 1–1 Video, specifications, A–2 Set up.

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