1. Manuals
  2. Brands
  3. Leader Manuals
  4. Inverter
  5. LG 3219
  6. Instruction manual

Leader LG 3219 Instruction Manual

Rds signal generator / am/fm stereo signal generator
Hide thumbs
Table of Contents

Advertisement

Quick Links

LG 3219 / LG 3238
RDS SIGNAL GENERATOR /
AM/FM STEREO SIGNAL GENERATOR
INSTRUCTION MANUAL

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the LG 3219 and is the answer not in the manual?

Questions and answers

Related Manuals for Leader LG 3219

Summary of Contents for Leader LG 3219

  • Page 1 LG 3219 / LG 3238 RDS SIGNAL GENERATOR / AM/FM STEREO SIGNAL GENERATOR INSTRUCTION MANUAL...
  • Page 2 SAFETY PRECAUTIONS (Be sure to keep the following precautions.) Precautions that must be kept in order to prevent injuries to users or any other people and damages to their properties are explained below. Use this instrument in a manner specified in this instruction manual. Otherwise, the protection provided by this instrument may be impaired.
  • Page 3 WARNING Be sure to connect the protective earth terminal of the power cable to the 電源コードの保護接地端子は必ず接地する ground. Connect the protective earth terminal of the power cable to the ground to avoid an electric shock. Do not attempt to damage the power cable and power plug. 電源コードの保護接地端子は必ず接地する...
  • Page 4 WARNING Do not apply voltage exceeding the specified value. Fire may break out. Do not apply voltage exceeding the value specified in this manual. Do not disassemble the instrument. 電源コードの保護接地端子は必ず接地する Disassembly may cause an electric shock or malfunction. ・ Though critical sections on safety are shielded, disassembly work may expose a hazardous section.

  • Page 5: Table Of Contents

    CHAPTER 1 GENERAL INTRODUCTION ........................1-1 DESCRIPTION ........................1-2 FEATURES..........................1-3 1-3-1 Features common to the two instruments..............1-3 1-3-2 Features applied to LG 3219 only .................1-3 FUNCTION ..........................1-4 1-4-1 FM stereo modulator .....................1-4 1-4-2 RDS signal (LG 3219 only)....................1-6 1-4-3 RDS data editor (LG 3219 only) ..................1-7 1-4-4 TRI (=ARI) signal (LG 3219 only)..................1-7...
  • Page 6 CHAPTER 4 NAMES AND FUNCTIONS OF THE OPERATIONAL PARTS GENERAL..........................4-1 DESCRIPTION OF THE FRONT PANEL................4-1 DESCRIPTION OF THE REAR PANEL ................4-10 CHAPTER 5 OPERATION GENERAL..........................5-1 RF FREQUENCY........................5-2 5-2-1 General .........................5-2 5-2-2 Direct setting with the data keys..................5-3 5-2-3 Modification with the EDIIT knob...................5-3 5-2-4 Relative value display....................5-4 5-2-5...
  • Page 7 5-8-1 General .........................5-27 5-8-2 Selecting a time constant ....................5-27 SCA SIGNAL .........................5-28 5-10 COMPOSITE SIGNAL OUTPUT LEVEL ................5-28 5-11 RDS SIGNAL (LG 3219 only) ....................5-29 5-11-1 General .........................5-29 5-11-2 Turning an RDS signal ON or OFF ................5-29 5-11-3 Direct setting of a signal level with the data keys............5-30 5-11-4 Modification of a signal level with the EDIIT knob............5-30...
  • Page 8 5-13-6 Canceling the step DDS frequency ................5-42 5-14 ASSORTED PRESET MEMORY...................5-44 5-14-1 General .........................5-44 5-14-2 Storing operation ......................5-45 5-14-3 Direct recalling operation ....................5-46 5-14-4 Sequential recalling operation ..................5-46 5-14-5 Grouped sequential recalling operation ................5-48 CHAPTER 6 GP-IB INTERFACE GENERAL..........................6-1 GP-IB INTERFACE FUNCTION ....................6-1 GP-IB CONNECTOR......................6-1 GP-IB ADDRESS SETTING ....................6-2 DEVICE CLEAR........................6-3...
  • Page 9 8-5-2 Specifications for electrical operation................8-5 REMOTE EDIIT ........................8-6 8-6-1 Connector pins used .....................8-6 8-6-2 Specifications for electrical operation................8-6 REMOTE DIRECT RECALL ....................8-7 8-7-1 Connector pins used .....................8-7 8-7-2 Specifications for electrical operation................8-7 CONTROL OUTPUT ......................8-8 8-8-1 Connector pins used .....................8-8 8-8-2 Readout.........................8-8 8-8-3...

  • Page 10: Chapter 1 General

    CHAPTER 1 GENERAL CHAPTER 1 1-1 INTRODUCTION This instruction manual consists of the following sections: CHAPTER 1 GENERAL Provides a general description and feature of the signal generator. CHAPTER 2 SPECIFICATIONS Gives the specifications of this instrument. CHAPTER 3 INSTALLATION Describes electrical and mechanical preparations to be made to use the instrument and safety precautions.

  • Page 11: Description

    FM stereo broadcasting system. Besides, the model LG 3219 has built-in modulators for signals of RDS (Radio Data System) that is used as a digital data transmission method in FM stereo broadcasting in European countries or RBDS (Radio Broadcast Data System) that is used in the United States, and for signals of TRI (Traffic Radio Information) that is used as a traffic information identity signal in European countries.

  • Page 12: Features

    1 Hz resolution in the range of 20 Hz to 20 kHz. This is used for measuring the frequency characteristics of a receiver. 1-3-2 Features applied to LG 3219 only RDS and TRI signal sources The instrument has a built-in RDS or RBDS signal source and TRI (=ARI) signal source. With these signal sources, the instrument alone can generate modulation waves that are to be used to test and measure FM multiplex broadcasting receivers.

  • Page 13: Function

    ■GENERAL 1-4 FUNCTION 1-4-1 FM stereo modulator (1) FM stereo broadcasting As outlined in Figure 1-2, a broadcasting using the carrier suppression AM / FM system is generally called an FM stereo broadcasting. This system was established by FCC (Federal Communications Commission) and EUB (European Broadcasti0g Union), and is now submitted to the Radio Regulatory Council of the Post and Telecommunications Ministry.
  • Page 14 GENERAL■ (2) Modulation mode Six types of modulation modes are available. (a) Modulation off Both the main- and sub-channel signals are turned off. (b) Monophonic Without stereo modulation, only a main-channel signal is generated. The PILOT signal is turned off. As a test tone, an internal AF signal or an externally supplied sine wave ranging from 20 Hz to 100 kHz can be used.

  • Page 15: Rds Signal (Lg 3219 Only)

    10 % at about 0.56 V [P-P]. 1-4-2 RDS signal (LG 3219 only) The model LG 3219 can generate RDS signals that are defined in CENELEC EN 50067 and broadcasted in European countries, and RBDS signals that are defined in NRSC/NAB and broadcasted in the United States.

  • Page 16: Rds Data Editor (Lg 3219 Only)

    RDS signals. The RDS data editor software runs on Microsoft Windows. The RDS data editor automatically creates RDS data from entered sequence data and code data. The created RDS data can be downloaded in the internal memory of LG 3219 and used as its modulation output signals.

  • Page 17: Gp-Ib Control

    ■GENERAL 1-4-6 GP-IB control Shown below is the GP-IB interface function of these instruments. Table1-3 GP-IB interface functions Function Code Description Source handshake Complete capability Acceptor handshake Complete capability Talker Basic talker, talker release by MLA, talk only Listener Basic listener, listener release by MTA, listen only Service request No capability Remote / local...

  • Page 18: Chapter 2 Specifications

    CHAPTER 2 SPECIFICATIONS CHAPTER 2 2-1　ELECTRICAL PERFORMANCE ■ Frequency Item Specification Condition & Remark Range 0.1 MHz to 140 MHz Resolution 100 Hz Frequency band Band 1: 0.100 0 MHz to 35.000 0 MHz Band 2: 35.000 1 MHz to 70.000 0 MHz Band 3: 70.000 1 MHz to 140.000 0 MHz －...
  • Page 19 ■SPECIFICATIONS ■ Spectral purity (Cont’d) Item Specification Condition & Remark Represented as an S/N ratio in AM component ≧55 dB (Band 1: 0.4 MHz to 1.7 MHz) reference to 30 % modulation ≧50 dB (Band 1 to 3: 0.15 MHz to 140 MHz) with the modulation frequency of 1 kHz.
  • Page 20 SPECIFICATIONS■ ■ Frequency modulation (FM) Item Specification Condition & Remark Guaranteed Frequency≧0.3 MHz performance range Frequency deviation 0.0 kHz to 100 kHz The maximum allowable FM range deviation in band 1 is 25 % of the carrier frequency. Resolution 0.5 kHz Accuracy ±(Set value×0.1＋0.5) kHz (10.7 MHz±1MHz, 76 MHz to 108 MHz)
  • Page 21 (1) FM stereo (EXT) － AM (INT) mixed modulation (2) FM stereo (INT) － AM (EXT) (3) FM stereo (EXT) － AM (EXT) (4) FM stereo (INT) － AM (INT) ■ RDS signal (for LG 3219 only) Item Specification Condition & Remark Level range 0.0 % to 10 %...
  • Page 22 SPECIFICATIONS■ ■ RDS signal (for LG 3219 only) (Cont’d) Item Specification Condition & Remark Phase accuracy ±10° Leakage ≦－50 dB Internal data Mode Sub-carrier / Null data / Internal data Number of patterns Max. 16 patterns Pattern length Max. 2 048 groups ■...
  • Page 23 ■SPECIFICATIONS ■ DDS signal Item Specification Condition & Remark Oscillation Direct digital synthesizer, 12 bits Frequency range 20 Hz to 20 kHz Resolution 1 Hz Accuracy ±0.1 % Flatness Same as the external modulation response ■ Weather band output Item Specification Condition &...

  • Page 24: Environmental Conditions

    SPECIFICATIONS■ ■ External interface (Cont’d) Item Specification Condition & Remark RS-232-C Baud rate 38 400 bps Character length 8 bits Parity EVEN Flow control Xon / Xoff Stop bit 1 bit External control interface Description (1) Remote sequential recall (2) Remote modify (3) Remote direct recall (4) Control output (5) Print out of memory contents (list output)

  • Page 25: Mechanical Performance

    ■ Furnished accessories Item Specification Condition & Remark Instruction manual (CD) ....... 1 Power cable..........1 RDS Data Editor (CD) ........1 For LG 3219 only 2-5　WIRING REQUIREMENTS ■ Wiring requirements Location Item (Cable name) Product specifications (Requirements) Front panel AF EXT INPUT cable ＜3 m (BNC type, shielded)

  • Page 26: Regulatory Information

    SPECIFICATIONS■ 2-6　REGULATORY INFORMATION [Statement of Compliance] This instrument has been designed and tested in accordance with; EN 61010-1: Safety requirements for electrical equipment for measurement, control, and laboratory use EN 61326-1: Electrical equipment for measurement, control, and laboratory use - EMC requirements and has been supplied in a safe condition.

  • Page 27: Chapter 3 Installation

    CHAPTER 3 INSTALLATION CHAPTER 3 This section describes electrical and mechanical precautions for using the Instrument safely and properly. Please read this section before using the instrument. 3-1　POWER REQUIREMENTS The Instrument can be operated from any power source supplying 90 V to 250 V, 50 or 60 Hz. Power consumption is 60 VA or less.

  • Page 28: Power Cable

    ■INSTALLATION 3-3　POWER CABLE The Instrument is equipped with a detachable power cable assembly. The type of the plug shipped with each instrument depends on the country of destination. Figure 3-1 illustrates four types of power cables available. To order a power cable, include the instrument model number, instrument ID number, and the cable type shown in Figure 3-1.

  • Page 29: Installing On A Desktop

    Contact the dealer or representative from which you purchased the instrument in such a case. 3-8 INSTALL OF EDITOR (LG 3219 only) The instrument provides software "RDS data editor" operated on Microsoft Windows to make a data for RDS pattern.

  • Page 30: Connection

    ■INSTALLATION Table 3-1 Operational environment Item Required conditions Compatible OS Windows 98 / 2000 / XP * Compatible computer Applicable to the above compatible OS. 100 % AT Compatibility CD drive unit Hard disk When install empty capacity over 5 MB is required. Display 640×480 dots (VGA) required , 800×600 dots recommended Key board...

  • Page 31: Chapter 4 Names And Functions Of The Operational Parts

    Note that the overall view of the model LG 3219 is used to shown the position of each block on the panel. Also the detailed description of each block is avail able in the relevant partially magnified figure.
  • Page 32 Unit light －1 The Unit light corresponding to the displayed value is lit. 【4】 TRI / RDS readout (for LG 3219 only) Indicates various values related to TRI (=ARI) signals and RDS signals. The following table lists the details of values.
  • Page 33 Used for the setting operation as described below. Common ......RF frequency, Output level, AM degree, FM deviation, FM stereo modulation ratio, Pilot level, and DDS frequency (option) LG 3219 only .....RDS level, SK level of TRI, RDS pattern selection, BK modulation degree, and DK modulation degree keys 【8】...
  • Page 34 ■NAMES AND FUNCTIONS OF THE OPERATIONAL PARTS 【11】 【10】 【9】 【16】 【9】 ENTER key Confirms the value entered with the keys in the DATA ENTRY block 【10】. 【10】 DATA ENTRY block Data keys ・ － … Twelve keys are provided. Press the data keys to enter a numeric value for each setting.
  • Page 35 PILOT LVL key 【11】 －6 Press this key to enable the setting operation for a pilot signal level. SK LVL key (for LG 3219 only) 【11】 －7 Press this key to enable the setting operation for an SK signal level.
  • Page 36 ■NAMES AND FUNCTIONS OF THE OPERATIONAL PARTS 【13】 【12】 【16】 【12】 TRI / RDS block (for LG 3219 only) Used to make settings related to TRI (=ARI) and RDS signals. 【12】 RDS / PHASE key －1 【12】 【12】 －1 －2 Press this key to turn RDS signal output ON or OFF.
  • Page 37 NAMES AND FUNCTIONS OF THE OPERATIONAL PARTS■ 【13】 MODULATION block 1 Used to make various settings related to modulation. MONO key 【13】 －1 【13】 【13】 【13】 －1 －3 －5 Sets the frequency modulation (FM) to the MONO mode. 【13】 【13】 －2 －4 ＝...
  • Page 38 ■NAMES AND FUNCTIONS OF THE OPERATIONAL PARTS 【17】 【16】 【15】 【18】 【14】 【14】 MODULATIONblock 2 Used to make various settings related to modulation signals. EXT HIGH / LOW lights 【14】 －1 Indicates the judgment result of the external modulation input signal level when AM or FM external modulation operation is enabled.
  • Page 39 NAMES AND FUNCTIONS OF THE OPERATIONAL PARTS■ 【17】 MEMORY block Used to make various settings related to the assorted preset memory. 【17】 －1 Press this key to recall the address next to the currently 【17】 －5 【17】 －1 displayed memory address in the sequential recall operation 【17】...

  • Page 40: Description Of The Rear Panel

    ■NAMES AND FUNCTIONS OF THE OPERATIONAL PARTS 4-3　DESCRIPTION OF THE REAR PANEL The rear panel of this series of signal generators is illustrated below. This paragraph gives the name of each section and brief explanation of its function. 【19】 【20】 【21】...

  • Page 41: Chapter 5 Operation

    OPERATION CHAPTER 5 5-1　GENERAL This chapter describes the basic panel operation of the models LG 3238 / LG 3219 in the following order. It also contains the GP-IB program codes associated with each operation. 5-2 RF FREQUENCY 5-3 OUTPUT LEVEL...

  • Page 42: Rf Frequency

    ■OPERATION 5-2　RF FREQUENCY 5-2-1 General An RF frequency appears as a value ranging from 0.100 0 MHz to 140.000 0 MHz and 162.000 0 MHz to 163.000 0 MHz in the FREQUENCY readout. The decimal point represents the position of MHz. Table 5-1 shows the band structure inside the instrument and setting resolutions.

  • Page 43: Direct Setting With The Data Keys

    OPERATION■ 5-2-2 Direct setting with the data keys Ex. Setting an RF frequency to 123.456 7 MHz RF FREQ Press the key. Enter an RF frequency with the data keys. ・ ■ NOTE If a wrong value is entered, confirm the entered value once, and then repeat the setting operation from the procedure 1.

  • Page 44: Relative Value Display

    ■ OPERATION 5-2-4 Relative value display An RF frequency can be represented as a relative value in terms with an increase or decrease from a given reference value. ■ NOTE The setting range of a relative RF frequency is －99.999 9 MHz to 99.999 9 MHz. Ex.

  • Page 45: Specifying A Relative Rf Frequency Value

    OPERATION ■ RF FREQ Press the key. ENTER Press the key. The ⊿F light is lit and a relative value is displayed. (The relative value display indicates 0 because the current frequency is the reference frequency.) ■ NOTE The reference frequency cannot be set as long as the relative value display is enabled (the ⊿F light is lit).

  • Page 46: Disabling The Relative Value Display

    ■ OPERATION 5-2-6 Disabling the relative value display To perform this operation, the relative value display should be enabled (the ⊿ F light is lit). SHIFT Press the ΔF OFF Press the key. Then the relative value display of an RF frequency is disabled, and the ⊿F light is lit off. FREQUENCY readout returns to the normal frequency display.

  • Page 47: Changing An Rf Frequency With A Variable Step Amount

    OPERATION ■ Ex. Verifying the variable step amount SHIFT Press the key. RF-STEP Press the key. The set value is displayed for about 10 seconds. 5-2-8 Changing an RF frequency with a variable step amount Ex. Increasing the RF frequency from 123.456 7 MHz once, and then decrease twice at a 10 MHz step. RF FREQ Press the key.

  • Page 48: Output Level

    ■ OPERATION 5-3　OUTPUT LEVEL 5-3-1 General An output level is displayed in the AMPLITUDE readout. The display range is as follows. － 20.0 dBµV to 126 dBµV [emf] (0 dBµV = 1 µV [emf], open end) The resolution is 0.1 dB. The relative value display ranges from 0.0 dB to ±...
  • Page 49 OPERATION ■ 5-3-3 Modification with the EDIIT knob Ex. Modifying the value from 12.3 dBµV [emf] to 13 dBµV [emf] AMPTD Press the key. dBµV emf Δ F OFF Δ dB OFF Specify a digit to be modified with the key.

  • Page 50: Specifying A Relative Output Level Value

    ■ OPERATION ■ NOTE  Be sure to start numeral input while The data keys are blinking. Once they are lit off, you may not enter any value.  If a wrong value is entered, confirm the entered value once, and then repeat the setting operation from the procedure 1.

  • Page 51: Disabling The Relative Value Display

    OPERATION ■ Enter a relative output level with the data keys. ■ NOTE  Be sure to start numeral input while The data keys are blinking. Once they are lit off, you may not enter any value.  If a wrong value is entered, confirm the entered value once, and then repeat the setting operation from the procedure 1.

  • Page 52: Changing An Output Level With A Variable Step Amount

    ■ OPERATION Ex. Setting a variable step amount to 5.5 dB. dBµV emf SHIFT Press the key. AP-STEP Press the key. Enter a variable step amount with the data keys. ・ ■ NOTE If a wrong value is entered, confirm the entered value once, and then repeat the setting operation from the procedure 1.

  • Page 53: Disabling The Variable Step Operation Of An Output Level

    OPERATION ■ 5-3-10 Disabling the variable step operation of an output level SHIFT Press the key. AP-STEP Press the key. I/O MODE Press the key. ENTER Press the key. ■ NOTE Once the variable step operation is disabled, the MODIFY knob can be used for normal output level modification operation.

  • Page 54: Amplitude Modulation (Am)

    ■OPERATION 5-4　AMPLITUDE MODULATION (AM) 5-4-1 General The status of amplitude modulation is shown in the MODULATION block and MODULATION readout. The MODULATION block contains modulation ON / OFF status, selection of a modulation signal, and the judgment result of an external modulation input signal level, while the MODULATION readout contains an AM degree.

  • Page 55: Selecting An Am Signal

    OPERATION ■ 5-4-3 Selecting an AM signal An AM signal can be selected among the following three:  The internal sine wave of 400 Hz or 1 kHz (INT)  An externally supplied signal of 20 Hz to 10 kHz (EXT) ...

  • Page 56: Modification With The Ediit Knob

    ■ OPERATION 5-4-5 Modification with the EDIIT knob Ex. Modifying the AM degree from 34.5 % to 30 % Press the key. Δ F OFF Δ dB OFF Specify a digit to be modified with the key. The currently specified digit blinks. ΔF OFF Press the key three times.
  • Page 57 OPERATION ■ External AM degree and input signal level Just like the internal modulation case, an AM degree appears in the MODULATION readout as long as an external AM input signal keeps the reference value (approx. 1 V [peak]) so that you can set or modify an AM degree with the data keys or EDIIT knob.

  • Page 58: Frequency Modulation (Fm)

    ■ OPERATION 5-5　FREQUENCY MODULATION (FM) 5-5-1 General The status of frequency modulation is shown in the MODULATION block and MODULATION readout. The MODULATION block contains modulation ON / OFF status, selection of a modulation signal, and the judgment result of an external modulation input signal level, while the MODULATION readout contains an FM deviation.
  • Page 59 OPERATION ■ 5-5-3 Selecting an FM signal An FM signal can be selected among the following three:  The internal sine wave of 400 Hz or 1 kHz (INT)  An externally supplied signal of 20 Hz to 100 kHz (EXT) ...
  • Page 60 ■ OPERATION 5-5-5 Modification with the EDIIT knob Ex. Modifying the FM deviation from 34.5 kHz to 15 kHz Press the key. Δ F OFF Δ dB OFF Specify a digit to be modified with the key. The currently specified digit blinks. ΔF OFF Press the key three times.
  • Page 61 OPERATION ■ Setting an external FM deviation Just like the internal modulation case, an FM deviation appears in the MODULATION readout as long as an external FM input signal keeps the reference value (approx. 1 V [peak]) so that you can set or modify an FM deviation with the data keys or EDIIT knob.

  • Page 62: Main- And Sub-Channel Signals Of Fm Stereo

    ■ OPERATION 5-6 MAIN- AND SUB-CHANNEL SIGNALS OF FM STEREO 5-6-1 General At the FM stereo modulation time, modulation status is shown in the MODULATION block and a modulation ratio is shown in the MODULATION readout with a 75 kHz FM deviation assumed as 100 %. The setting range and resolution of a modulation ratio are shown in Table 5-10 below.

  • Page 63: Turning Main- / Sub-Channel Signals On Or Off

    OPERATION ■ 5-6-2 Turning main- / sub-channel signals ON or OFF FM-SIG Press the key. Pressing this key switches FM between ON and OFF. The key light is lit in the ON case, and it is lit off in the OFF case. ■...

  • Page 64: Modification With The Ediit Knob

    ■ OPERATION ENTER Press the key. 5-6-5 Modification with the EDIIT knob Ex. Modifying the FM ratio from 85 % to 105 % Press the key. Δ F OFF Δ dB OFF Specify a digit to be modified with the key.

  • Page 65: Pilot Signal

    OPERATION■ 5-7 PILOT SIGNAL 5-7-1 General As for pilot signals, the ON / OFF status of a pilot signal is shown in the MODULATION block and a pilot signal level ratio is shown in the MODULATION readout. A pilot signal level ratio represents a level ratio when a 75 kHz deviation is assumed as 100 %. The setting range and resolution of an FM stereo pilot signal level ratio are shown in Table 5-13 below.
  • Page 66 ■OPERATION ENTER Press the key. ■ NOTE Once a pilot signal level ratio is specified, the display unit is changed into % and the PILOT key light is lit in the MODULATION block. 5-7-4 Modification with the EDIIT knob Modifying the pilot signal level ratio from 9.5 % to 13.5 % PILOT LVL Press the key.

  • Page 67: Pre-Emphasis

    OPERATION ■ 5-8 PRE-EMPHASIS 5-8-1 General In the FM stereo modes, signals can be provided with the pre-emphasis feature as follows. 75 µs 50 µs 25 µs 10 k 15 k Frequency [Hz] Figure 5-2 Pre-emphasis feature The basic operations related to the pre-emphasis feature are described in the following paragraphs. 5-8-2 Selecting a time constant 5-8-2 Selecting a time constant A time constant of the pre-emphasis feature can be selected among 0 µs (OFF), 25 µs, 50 µs, and...

  • Page 68: Sca Signal

    ■ OPERATION 5-9 SCA SIGNAL When an SCA signal is required to generate a composite stereo signal, apply a 0.56-V [P-P] signal to the SCA INPUT connector on the rear side of the instrument. Then the SCA component equal to the deviation of 7.5 kHz can be obtained.

  • Page 69: Rds Signal (Lg3219 Only)

    OPERATION ■ 5-11 RDS SIGNAL (LG3219 only) 5-11-1 General The instrument can download desired pattern data from a computer for output. It can download up to 16 pattern data and assign pattern numbers 0 to 15 to them for management. Besides, the instrument can output the NULL pattern data and Sc pattern data.

  • Page 70: Direct Setting Of A Signal Level With The Data Keys

    ■ OPERATION ■ NOTE  Even after an RDS signal is turned OFF, the TRI / RDS readout still shows an RDS signal level.  RDS signals are available only in the FM stereo mode. Before turning an RDS signal ON, be sure to set FM to the stereo mode.

  • Page 71: Direct Setting Of Pattern Data With The Data Keys

    OPERATION ■ When the digit stops blinking, modify the value with the EDIIT k nob. Turn the knob counterclockwise by three steps. ■ NOTE The EDIIT knob can be turned endlessly. Turning the knob clockwise increases the signal level, while turning it counterclockwise decreases the signal level. Carry and borrow are available.

  • Page 72: Modification Of Pattern Data With The Ediit Knob

    ■ OPERATION 5-11-6 Modification of pattern data with the EDIIT knob Ex. Changing from the pattern data 3 to Null PAT CODE Press the key. PAT/CODE Modify the value with the EDIIT knob. PAT/CODE Turn the knob counterclockwise by five steps. ■...

  • Page 73: Tri (=Ari) Signal (Lg 3219 Only)

    OPERATION■ 5-12 TRI（=ARI）SIGNAL (LG 3219 only) 5-12-1 General The status of TRI signals is shown in the TRI / RDS block and TRI / RDS readout. The TRI / RDS block contains SK, BK, and DK signals ON / OFF status, while the TRI/RDS readout contains an SK signal level, BK signal code data, and AM degrees of a BK signal and DK signal.

  • Page 74: Turning An Sk Signal On Or Off

    ■OPERATION 5-12-2 Turning an SK signal ON or OFF Press the key. Pressing this key switches an SK signal between ON and OFF. The key light is lit in the ON case, and it is lit off in the OFF case. ■...

  • Page 75: Turning A Bk Signal On Or Off

    OPERATION■ Δ F OFF Δ dB OFF Specify a digit to be modified with the key. The currently specified digit blinks. ΔF OFF Press the key one time. ■ NOTE If there is no operation for five seconds, the digit will stop blinking. When the digit stops blinking, modify the value with the EDIIT knob.

  • Page 76: Modification Of The Am Degree Of A Bk Signal With The Ediit Knob

    ■OPERATION ■ NOTE If a wrong value is entered, confirm the entered value once, and then repeat the setting operation from the procedure 1. ENTER Press the key. ■ NOTE When an AM degree of a BK signal is set with The data keys or GP-IB code and RS- 232-C codes, the BK signal operation is automatically turned ON.

  • Page 77: Selecting A Bk Signal Code Data

    OPERATION■ 5-12-8 Selecting a BK signal code data 例 Ex. Selecting the code data E SHIFT Press the key. PAT CODE Press the key. Enter a code data number with the data key. ■ NOTE If a wrong value is entered, confirm the entered value once, and then repeat the setting operation from the procedure 1.

  • Page 78: Turning A Dk Signal On Or Off

    ■OPERATION ■ NOTE The EDIIT knob can be turned endlessly. Turning the knob clockwise moves code data upward in Table 5-20, while turning it counterclockwise moves code data downward. Thus turning the knob clockwise at the code F position causes the Code A to be selected, and turning it counterclockwise at the code A position causes the code F to be selected.

  • Page 79: Modification Of The Am Degree Of A Dk Signal With The Ediit Knob

    OPERATION■ 5-12-12 Modification of the AM degree of a DK signal with the EDIIT knob Ex. Modifying the AM degree from 30 % to 25 % SHIFT Press the key. DK AM-D Press the key. Δ F OFF Δ dB OFF Specify a digit to be modified with the key.

  • Page 80: Dds Frequency

    ■OPERATION 5-13 DDS FREQUENCY 5-13-1 General The DDS frequency is indicated in the FREQUENCY readout in the range of 0.020 kHz to 20.000 kHz. The decimal point represents the position of the kHz unit. The resolution is 1 Hz. The basic operations related to DDS frequency are explained in the following paragraphs. 5-13-2 Direct setting with the data keys 5-13-3 Modification with the EDIIT knob 5-13-4 Specifying a variable step amount of the DDS frequency...

  • Page 81: Specifying A Variable Step Amount Of The Dds Frequency

    OPERATION■ 5-13-3 Modification with the EDIIT knob Ex. Modifying the frequency from 12.345 kHz to 12.400 kHz Press the key. Δ F OFF Δ dB OFF Specify a digit to be modified with the key. The currently specified digit blinks. ΔF OFF Press the key two times.

  • Page 82: Changing The Dds Frequency At A Variable Step Amount

    ■OPERATION ■ NOTE If a wrong value is entered, confirm the entered value once, and then repeat the setting operation from the procedure 1. ENTER Press the key. The set value is displayed for about 10 seconds. Ex. Verifying the variable step amount SHIFT Press the key.
  • Page 83 OPERATION■ ENTER Press the key. ■ NOTE Once the variable step operation is disabled, the EDIIT knob can be used for normal frequency modification operation. 5-43...

  • Page 84: Assorted Preset Memory

    ■OPERATION 5-14 ASSORTED PRESET MEMORY 5-14-1 General The assorted preset memory function can be used to store up to 100 sets of parameters as described before, and to recall a desired set of parameters as necessary. The 100 sets of preset memories are managed with the memory address of 00 to 99. A memory address is indicated in the MEMORY ADDRESS readout.

  • Page 85: Storing Operation

    Table 5-23 Setting items that may be stored in the preset memory (Cont’d) Item Setting －140 to 140 Reverse frequency of relay drive output RDS signal (LG 3219 only) Signal ON / OFF Level 0.0 % to 10 % Pattern data...

  • Page 86: Direct Recalling Operation

    ■OPERATION 5-14-3 Direct recalling operation Ex. Recalling the memory with the memory address 12 Press the key. Enter a memory address with the data keys. ■ NOTE Alternatively, the preset memories with the memory addresses 00 to 09 can be recalled with the procedure as described in the paragraph "Ex.
  • Page 87 OPERATION■ ENTER Press the key. ■ NOTE  It is assumed that the smaller one of the two entered addresses is a start address and the bigger one is an end address. Thus setting two addresses as follows causes the preset memories to be sequentially recalled from the address 12 to the address 34.

  • Page 88: Grouped Sequential Recalling Operation

    ■OPERATION ■ NOTE If the currently displayed address is the start address, the end address is recalled. LIST Press the key. The start address is recalled. ■ NOTE LIST If the key is pressed when the start and end addresses are cancelled, the address 00 is recalled.
  • Page 89 OPERATION■ Ex. Defining three groups sharing same addresses SHIFT Press the key. Press the key. PORT 2 Press the key. ・ Enter a two-digit start address with the data keys. PORT 2 Press the key. ・ Enter a two-digit end address with the data keys. PORT 2 Press the key.
  • Page 90 ■OPERATION SHIFT Press the key. Press the key. PORT 2 Press the key. ・ Enter a two-digit start address with the data keys. PORT 2 Press the key. ・ Enter a two-digit end address with the data keys. PORT 2 Press the key.
  • Page 91 OPERATION■ ENTER Press the key. ■ NOTE When a start and end addresses are set to the same numeric value, both addresses are cancelled. 5-51...

  • Page 92: General

    CHAPTER 6 GP-IB INTERFACE CHAPTER 6 6-1 GENERAL The GP-IB interface allows this series of signal generators to execute the following functions: (1) Remote control of the instrument's settings by program codes that are sent from the controller (listener) (2) Function for sending the instrument's settings to the controller (talker). (3) Memory sync and memory copy functions (talk only / listen only).

  • Page 93: Gp-Ib Address Setting

    ■GP-IB INTERFACE 6-4 GP-IB ADDRESS SETTING A GP-IB device address is set with panel keys. The GP-IB address appears in the FREQUENCY readout with the parameters for other I/O modes only during setting and verifying operation. Ex. Verifying the GP-IB address setting SHIFT Press the key.

  • Page 94: Device Clear

    RDS signal (LG 3219 only) Level ratio Selection of the pattern Null Sub carrier phase 0° TRI SK signal (LG 3219 only) Level ratio TRI DK signal (LG 3219 only) AM degree TRI BK signal (LG 3219 only) AM degree...

  • Page 95: Functions Remotely Uncontrollable

    ■GP-IB INTERFACE 6-6 FUNCTIONS REMOTELY UNCONTROLLABLE Most of the instrument functions executed through panel operation can be remotely controlled via the GP-IB. The following functions, however, cannot be remotely controlled.  The EDIIT knob operation  The relative value display of RF frequency and output level AUTO/MANU COPY LIST...

  • Page 96: Remote Mode

    GP-IB INTERFACE■ 6-7-2 Remote mode The generator enters the remote mode if it receives the MLA command with the REN line true. ■ NOTE REMOTE ○ LOCAL ●  In the remote mode, the POWER switch and key are only effective. ...

  • Page 97: Program Code Input Format

    ■GP-IB INTERFACE 6-9 PROGRAM CODE INPUT FORMAT This paragraph describes the input format for GP-IB program codes. 6-9-1 Input program message format To set the generator in a desired state through the GP-IB interface, several program codes must be sent from the controller to the generator. The instrument can receive a program message of up to 255 bytes of program codes in 7-bit ASCII code.

  • Page 98: Program Code Input Format

    GP-IB INTERFACE■ 6-9-4 Program code input format A GP-IB program code consists of a header code, data code, and unit code. Most header codes consist of two English upper cases. A data code is generally a numeric value. A unit code consists of one or two English upper cases, but many of the program codes require no unit code.

  • Page 99: Chapter 7 Rs-232-C Interface

    (1) Remote control for RF frequency, output level, and modulation settings by program codes that are sent from the host. (2) Sending and receiving of RDS data by the attached pattern software. (Only for LG 3219) ■ NOTE REMOTE ○...
  • Page 100 ■RS-232-C INTERFACE Table 7-2 lists signal functions. Table 7-2 RS-232-C pin connection Pin No. Signal Description N.C. Not connected Received data Transmitted data Internal connection with No. 6 terminal Ground for signal Internal connection with No. 4 terminal Internal connection with No. 8 terminal Internal connection with No.

  • Page 101: Chapter 8 External Control Interface

    CHAPTER 8 EXTERNAL CONTROL CHAPTER 8 INTERFACE 8-1 GENERAL Besides the GP-IB and RS-232-C interfaces, the instrument has an external control interface and relay drive output. The dedicated connector is provided on the rear panel. Given below is a general introduction of the basic function.

  • Page 102: Ext Control I/O Connector

    ■EXTERNAL CONTROL INTERFACE 8-2 EXT CONTROL I/O CONNECTOR Figure 8-1 shows the pin connection of the EXT CONTROL I/O connector and Table 8-1 shows the pin function. N.C. GND. N.C. BUSY GND EXT N.C. N.C. FREQ DOWN AMPTD Figure 8-1 EXT CONTROL I/O connector pin assignment ■...

  • Page 103: Mode Setting

    EXTERNAL CONTROL INTERFACE■ Table 8-1 Pin function (cont’d) Number Name Function AUTO/MANU key input terminal for sequential recall. COPY key input terminal for sequential recall. DOWN CLR key input terminal for sequential recall. FREQ FREQ key of the FUNCTION block input terminal. AMPTD AMPTD key of the FUNCTION block input terminal.

  • Page 104: Common Items On Every Operation

    ■EXTERNAL CONTROL INTERFACE Ex. Setting the mode of P1 to memory direct recall "1" SHIFT Press the key. I/O MODE Press the key. ⊿F OFF ⊿dB OFF Specify either P1 or P2 digit with the keys. The currently specified digit is displayed blinking. Enter a mode number with DATA keys.

  • Page 105: Remote Sequential Recall

    EXTERNAL CONTROL INTERFACE■ 8-5 REMOTE SEQUENTIAL RECALL AUTO/MANU COPY LIST This function remotely controls UP ( ), DOWN ( ), and CLR ( ) of assorted preset memory. 8-5-1 Connector pins used Number Name Function AUTO/MANU Connects the UP ( ) signal.

  • Page 106: Connector Pins Used

    ■EXTERNAL CONTROL INTERFACE 8-6 REMOTE MODIFY This function remotely controls the modifying operation with the rotary encoder (EDIIT). 8-6-1 Connector pins used Number Name Function EXT RE1 External rotary encoder terminal 1 (Corresponding to the EDIIT knob). EXT RE2 External rotary encoder terminal 2 (Corresponding to the EDIIT knob). FREQ FREQ key input terminal.

  • Page 107: Remote Direct Recall

    EXTERNAL CONTROL INTERFACE■ 8-7 REMOTE DIRECT RECALL This function remotely controls the memory direct recall. 8-7-1 Connector pins used Number Name Function Connects a timing pulse for reading data. 2 to 9 to P1 Connects address data. (port 1) BUSY Outputs a signal informing the generator cannot receive data.

  • Page 108: Control Output

    ■EXTERNAL CONTROL INTERFACE 8-8 CONTROL OUTPUT This function provides TLL signals of up to 8 bits×2 ports for external device control. 8-8-1 Connector pins used Number Name Function 2 to 9 to P1 Outputs 8-bit data (port 1 ) 20 to 27 to P2 Outputs 8-bit data (port 2) Frame ground...
  • Page 109 EXTERNAL CONTROL INTERFACE■ ENTER Press the key. SHIFT Press the key. PORT 2 Press the key. ・ Enter a numeric value with DATA keys. ■ NOTE You cannot enter numerical values when the I/O light goes out. ENTER Press the key.

  • Page 110: Relay Drive Output

    ■EXTERNAL CONTROL INTERFACE 8-9 RELAY DRIVE OUTPUT A drive output signal can be obtained from the DRIVE OUTPUT connector on the rear panel. The signal reverses between HIGH and LOW according to whether the frequency (F) is higher or lower than the preset reverse frequency (FR).

  • Page 111: Operating Procedure

    EXTERNAL CONTROL INTERFACE■ 8-9-2 Operating procedure Ex. Setting a reverse frequency SHIFT Press the key. DRIVE Press the key. Enter an RF frequency value with DATA keys. － ■ NOTE You cannot enter numerical values when the I/O light goes out. ENTER Press the key.
  • Page 112 APPENDIX APPENDIX 1 GP-IB PROGRAM CODE LIST Parameter Header Data code Description code RF frequency 0.100 0 to 140.000 0 Specifies an RF frequency. (MHz) 162.000 0 to 163.000 0 Output level -20.0 to 126.0 Specifies an output level. (dBuV emf) -133.0 to 13.0 Specifies an output level.
  • Page 113 ■ APPENDIX Pre-emphasis Turns pre-emphasis OFF. Turns pre-emphasis OFF. Turns a time constant to 50 µs Turns a time constant to 75 µs 0.020 ～ 20.000 Sets DDS frequency. (kHz) AF modulation Turns AF modulation OFF. Turns AF modulation ON. EXT modulation Sets a modulation signal to EXT.
  • Page 114 Following information is for Chinese RoHS only 所含有毒有害物质信息 部件号码: LG 3219/3238 此标志适用于在中国销售的电子信息产品,依据2006年2月28日公布的 《电子信息产品污染控制管理办法》以及SJ/T11364-2006《电子信息产品污染 控制标识要求》，表示该产品在使用完结后可再利用。数字表示的是环境保护使 用期限，只要遵守与本产品有关的安全和使用上的注意事项，从制造日算起在数 字所表示的年限内，产品不会产生环境污染和对人体、财产的影响。 产品适当使用后报废的方法请遵从电子信息产品的回收、再利用相关法令。 详细请咨询各级政府主管部门。 产品中有毒有害物质或元素的名称及含量 部件名称 有毒有害物质或元素 Hazardous Substances in each Part Parts 铅 汞 镉 六价铬 多溴联苯 多溴二苯醚 (Pb) (Hg) (Cd) (Cr(Ⅵ)) (PBB) (PBDE) 机箱...
  • Page 115 LEADER ELECTRONICS CORP. 2-6-33 Tsunashima-Higashi, Kohoku-ku, Yokohama 223-8505, Japan PHONE:81-45-541-2123 FAX:81-45-541-2823 http://www.leader.co.jp Feb. 9, 2011 Ver.2...

This manual is also suitable for:

Lg 3238

Table of Contents