YOKOGAWA FG400 User Manual
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YOKOGAWA FG400 User Manual

Arbitrary/function generator
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User's
Manual
FG400
Arbitrary/Function Generator
User's Manual(Basic)
IM FG410-01EN
1st Edition

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Summary of Contents for YOKOGAWA FG400

  • Page 1 User's Manual FG400 Arbitrary/Function Generator User’s Manual(Basic) IM FG410-01EN 1st Edition...
  • Page 2 Product Registration Thank you for purchasing YOKOGAWA products. YOKOGAWA provides registered users with a variety of information and services. Please allow us to serve you best by completing the product registration form accessible from our homepage. http://tmi.yokogawa.com/ PIM 103-03E...
  • Page 3 Preface Thank you for purchasing the FG410/FG420 Arbitrary/Function Generator. To ensure safe and proper use of this electric equipment, please read first Safety Precautions on the following pages. ●Caution Symbols Used in This Manual The following caution symbols are used in this manual. Be sure to observe these caution symbols and their contents to ensure the safety of the user and avoid damage to the equipment.
  • Page 4 3. HANDY USE OF 2-CHANNEL DEVICE (FG420 ONLY) Explains how to operate two channels at the same time. 4. SYNCHRONIZING MULTIPLE UNITS Describes how to configure a multi-phase oscillator by connecting multiple units of this product. 5. USING EXTERNAL FREQUENCY REFERENCE Describes how to use external frequency reference.

  • Page 5: Safety Precautions

    Safety Precautions To ensure safe use, be sure to observe the following warnings and cautions. Yokogawa Meters & Instruments Corporation shall not be held liable for damages that arise from a failure to observe these warnings and cautions. This product is a Class I product (with protective conductor terminal) that conforms to the JIS and IEC insulation standards.
  • Page 6 • Install the instrument so that you can immediately remove the power cord if an abnormal or dangerous condition occurs. ●Safety-related symbols The general definitions of the safety-related symbols used on this product and in the instruction manual are provided below. Instruction Manual Reference Symbol This symbol is displayed to alert the user to potential danger and refer him/her to the instruction manual.

  • Page 7: Waste Electrical And Electronic Equipment

    “Monitoring and Control instrumentation” product. Do not dispose in domestic household waste. When disposing products in the EU, contact your local Yokogawa Europe B. V. office. New EU Battery Directive New EU Battery Directive, DIRECTIVE 2006/66/EC (This directive is valid only in the EU.)
  • Page 8 IM FG410-01EN...

  • Page 9: Table Of Contents

    Contents Preface .........................I Safety Precautions....................III Waste Electrical and Electronic Equipment ............V New EU Battery Directive ................... V Contents ......................VII Figures and Tables ..................... X 1. OVERVIEW ....................1 1.1　Features......................1 1.2　Operating Principles ..................2 2. PREPARATIONS BEFORE USE ..............4 2.1　Checking Before Use..................
  • Page 10 4.2.2　Switching display format with tabs (displaying waveform graph) ..... 27 4.2.3　Top menu ....................29 4.3　Basic Settings and Operations ................ 30 4.3.1　Changing the frequency, amplitude, and other values......30 4.3.2　Changing the waveform and oscillation mode ......... 33 4.3.3　Manipulating shortcut keys for changing basic parameters ..... 34 4.3.4　Operations of ENTER key, CANCEL key, and UNDO key .....
  • Page 11 4.8　Sweep Setting and Manipulation ..............83 4.8.1　Sweep types..................... 83 4.8.2　Screen for sweep setting and manipulation ..........83 4.8.3　Common sweep settings and manipulations..........86 4.8.4　Setting frequency sweep................95 4.8.5　Setting phase sweep................97 4.8.6　Setting amplitude sweep ................99 4.8.7　Setting DC offset sweep................. 101 4.8.8　Setting duty sweep.................

  • Page 12: Figures And Tables

    7.7　Sweep Oscillation Mode ................138 7.7.1　General ....................138 7.7.2　Sweep conditions ................... 139 7.8　Burst Oscillation Mode................... 139 7.9　Triggers......................140 7.10　Sequence..................... 141 7.11　Other I/Os ....................142 7.12　2-channel ganged operation (FG420 only) ..........143 7.13　Synchronous Operation of Multiple Units ............ 144 7.14　User-Defined Units ..................144 7.15　Other Functions ...................

  • Page 13: Overview

    OVERVIEW 1.1 Features The FG410 and FG420 are arbitrary/function generator based on direct digital synthesizers (DDS). The FG410 is a 1-channel generator, while the FG420 is a two-channel generator. • Highest frequency: 30 MHz (sine wave), 15 MHz (square wave, pulse) •...

  • Page 14: Operating Principles

    1. OVERVIEW 1.2 Operating Principles ■ FG410 block diagram ANALOG EXTERNAL MODULATION MOD/ADD WAVE MEMORY EXTERNAL 16bit ADDITION 512Kw 2Vmax FCTN ISOLATION 10Vmax 0/-10/-20/-30dB 16bit- TTL/ 3V SYNC/SUB 120MHz CLOCK GENERATOR DC OFFSET 20MHz 100V ...230V LINE AC/DC 10MHz REF IN +12V REF OUT for ANALOG...
  • Page 15 1.2 Operating Principles ■ FG420 block diagram ANALOG CH2 ANALOG CH1 EXTERNAL MODULATION MOD/ADD WAVE MEMORY EXTERNAL ADDITION 16bit 512Kw 2Vmax FCTN 10Vmax ISOLATION 0/-10/-20/-30dB 16bit- TTL/ 3V SYNC/SUB 120MHz CLOCK GENERATOR DC OFFSET 20MHz 100V ...230V LINE AC/DC 10MHz REF IN +12V for ANALOG CH1 REF OUT...

  • Page 16: Preparations Before Use

    After opening the corrugated box, check the items contained in the box. If an abnormality such as a flaw or dent is found on the product, or an accessory is missing, contact YOKOGAWA or its representative. • Appearance check Check that no abnormalities such as a flaw and dent are found on the panel, controls, connectors, and so forth.

  • Page 17: Installation

    2.2 Installation c) Repacking When repacking this equipment for transportation, etc., use a shipping carton of sufficient strength and capacity to safely accommodate the equipment and hold its weight. d) Options The following options are available and can be purchased separately. •...

  • Page 18: Grounding And Power Supply Connection

    2. PREPARATIONS BEFORE USE • Location near an electromagnetic field source, high-voltage device, or power line This product may malfunction. • Location exposed to excessive vibration This product may malfunction or fail. c) Panel and case cleaning Use a soft cloth to wipe dust from the panel and case. If soiling is severe, moisten the cloth with a neutral detergent and wring it out well.

  • Page 19: Calibration

    2.4 Calibration b) Power supply conditions Voltage range: 100 V AC to 230 V AC ±10% (250 V or lower) Frequency range: 50 Hz/60 Hz Power consumption: FG410: 50 VA or lower; FG420: 75 VA or lower c) Power supply connection procedure 1) Check that the commercial power supply voltage to be connected is within the voltage range specified for the equipment.

  • Page 20: Panels And I/O Terminals

    PANELS AND I/O TERMINALS 3.1 Panel Components and Operations This section describes the names and functions of the various components on the front and rear panels. 3.1.1 Front panel of FG410 Figure 3-1. Front Panel of FG410 Numeric keypad Used for numerical input p.

  • Page 21: Rear Panel Of Fg410

    3.1 Panel Components and Operations 3.1.2 Rear panel of FG410 Figure 3-2. Rear Panel of FG410 Exhaust vent p. 5 Power supply input p. 6 USB connector GPIB connector Multi-I/O connector Used for sweep, sequence control, sync code output p. 16 Frequency reference output terminal p.

  • Page 22: Front Panel Of Fg420

    3. PANELS AND I/O TERMINALS 3.1.3 Front panel of FG420 Figure 3-3. Front Panel of FG420 Numeric keypad Used for numerical input p. 31 UNDO key Basic parameter Press to undo setting changes shortcut keys p. 35 Press to allow the waveform, CANCEL key frequency, amplitude, and DC Press to cancel.

  • Page 23: Rear Panel Of Fg420

    3.1 Panel Components and Operations 3.1.4 Rear panel of FG420 Figure 3-4. Rear Panel of FG420 CH1 external trigger input terminal p. 14 CH2 external trigger input terminal p. 14 Exhaust vent p. 5 Power supply input p. 6 USB connector GPIB connector Multi-I/O connector Used for sweep, sequence control,...

  • Page 24: I/O Terminals

    3. PANELS AND I/O TERMINALS 3.2 I/O Terminals To prevent electric shocks, do not apply a voltage exceeding 42 Vpk (DC+AC WARNING peak) between the ground of the BNC connectors insulated from the housing and the housing. Also, do not apply a voltage exceeding 42 Vpk (DC+AC peak) between the grounds of the BNC connector groups insulated from the housing.

  • Page 25: Sync/Sub-Output (Sync/Sub Out)

    3.2 I/O Terminals 3.2.2 Sync/sub-output (SYNC/SUB OUT) FG410 FG420 SYNC/SUB SYNC/SUB SYNC/SUB [Insulated from housing] [Insulated from [Insulated from housing] housing] A sync signal is output according to the waveform or oscillation status. This signal can be used as the oscilloscope synchronization signal. As shown in the following table, the output signal can be selected according to the oscillation mode.

  • Page 26: External Modulation/Addition Input (Mod/Add In)

    3. PANELS AND I/O TERMINALS 3.2.3 External modulation/addition input (MOD/ADD IN) FG410 FG420 MOD/ADD MOD/ADD MOD/ADD [Insulated from housing] [Insulated from [Insulated from housing] housing] When the modulation source is external, except for FSK and PSK, an external modulation signal is input. In the case of the FSK and PSK, the external trigger input is used as external modulation signal input.

  • Page 27: External 10 Mhz Frequency Reference Input (10 Mhz Ref In)

    3.2 I/O Terminals • Gate of gated oscillation　 p. 115. • Triggered gate oscillation trigger　 p. 120. • Sequence oscillation start trigger　 “6.2 Basics” in the Application Instruction Manual TRIG IN can also be used as the external modulation input for FSK and PSK p.

  • Page 28: Frequency Reference Output (Ref Out)

    Check Do not connect any equipment other than the FG410 and FG420 not specified by YOKOGAWA to the frequency reference output. The special signal that is output from this terminal during synchronization may make the operation of such connected equipment unstable.

  • Page 29: Figure 3-5. Multi-I/O Connector Pin Assignment

    3.2 I/O Terminals ■ Control input for sweep oscillation mode The following types of control for sweep oscillation can be done with 3-bit logic input. p. 94 Start Start the sweep from the start through fall input. ORed with external trigger input. Stop Stop the sweep through fall input.
  • Page 30 10 kΩ, pull up to +5 V Output voltage TTL level (low: 0.4 V or lower; high: 2.7 V or higher) Signal GND Same potential as housing Connector Mini D-sub 15-pin The connection cable is an option. Contact YOKOGAWA or the dealer for details. IM FG410-01EN...

  • Page 31: Cautions On Floating Ground Connection

    3.3 Cautions on Floating Ground Connection 3.3 Cautions on Floating Ground Connection The signal ground of the BNC terminals for waveform output, sync/sub-output, and external modulation/addition input, is shared, but since it is insulated from the housing (ground potential), it can be connected to equipment that have a different potential. Moreover, the potential has no influence even when the equipment is mounted in a rack.

  • Page 32: Figure 3-6. Cautions On Floating Ground Connection For Fg410

    3. PANELS AND I/O TERMINALS ■ Cautions on Floating Ground Connection for FG410 Figure 3-6. Cautions on Floating Ground Connection for FG410 FCTN OUT ANALOG SYNC/SUB OUT MOD/ADD IN Use with potential difference of 42 Vpk 1 MΩ Use with potential or less! difference of 42 Vpk or less!

  • Page 33: Basic Operation

    BASIC OPERATION 4.1 Power on/off Switching and Restoration of Settings 4.1.1 Power on/off switching method ■ Power-on procedure The startup screen is displayed Press the Power off state power switch. The power is switched on. (standby state) Once the power is switched on, a self-check test is automatically executed and the unit becomes operable.

  • Page 34: Restoration Of Settings At Power-On

    4. BASIC OPERATION 4.1.2 Restoration of settings at power-on When the power is switched on/off with the power switch, the settings before the previous time the power was switched off are restored when the power is switched on again. The output on/off settings at power-on can be set on the Utility screen. p.
  • Page 35 4.1 Power on/off Switching and Restoration of Settings •The settings before the equipment was powered off last are restored. •The output on/off settings at power-on can be set on the Utility screen. p. 41 Check The previous settings can be restored only if the equipment was powered off using the power switch.
  • Page 36 4. BASIC OPERATION b) Restoration of settings during power supply on/off This applies to switching the power supply on/off at one time for this equipment and other embedded devices when this equipment is mounted in a rack. When the power supply is cut off while the equipment power is on, the equipment power automatically goes on the next time the power supply is reconnected.

  • Page 37: Screen Configuration And Operation

    Displayed when the internal temperature of the equipment becomes abnormally high. When this status is displayed during use at an ambient temperature of 40°C or lower, this indicates a malfunction, so notify YOKOGAWA or the dealer. • Remote status GPIB ，...
  • Page 38 4. BASIC OPERATION ■ Setting area This area is used to display and set the various parameters. When multiple display formats can be selected, display format switch tabs are displayed on the left side of the screen. p. 27 Due to the large number of setting parameters in the case of modulation, sweep, and burst oscillation, the setting screen consists of two or three pages.

  • Page 39: Switching Display Format With Tabs (Displaying Waveform Graph)

    4.2 Screen Configuration and Operation 4.2.2 Switching display format with tabs (displaying waveform graph) When a number of display formats can be selected, a display format switching tab is displayed on the left side of the screen. When the Graph tab is displayed on the screen, settings can be performed while checking the image of the output waveform.
  • Page 40 4. BASIC OPERATION b) Switching the display format In the example on the left, the Text tab screen is displayed. The Text tab On this screen, the settings are displayed screen is in text form. displayed. Select the Graph tab with the arrow keys or the modify knob.

  • Page 41: Top Menu

    4.2 Screen Configuration and Operation 4.2.3 Top menu Sequence oscillation, arbitrary waveform editing, system settings, saving and recalling settings, and other actions are done by selecting the desired item from the top menu. a) Displaying the top menu Press the menu key to display the following top menu window.

  • Page 42: Basic Settings And Operations

    4. BASIC OPERATION 4.3 Basic Settings and Operations 4.3.1 Changing the frequency, amplitude, and other values a) Changing a value with the up/down arrow keys or the modify knob Select the desired item with the arrow keys or the modify knob. In the example on the left, the [Freq] frequency field is selected.
  • Page 43 4.3 Basic Settings and Operations Press the ENTER key to close the input field. ENTER The input field has closed. If the CANCEL key is pressed instead of the ENTER key, the value changed with the modify knob is discarded and the status of step 1 (pre-change setting) is returned to.
  • Page 44 4. BASIC OPERATION Check If a setting item is displayed on a soft key, the input field for that item can be opened by pressing that soft key. IM FG410-01EN...

  • Page 45: Changing The Waveform And Oscillation Mode

    4.3 Basic Settings and Operations 4.3.2 Changing the waveform and oscillation mode Select the desired item with the arrow keys or the modify knob. In the example on the left, the [Fctn] (waveform) field is selected. The waveform is selected. Item selection The current waveform is...

  • Page 46: Manipulating Shortcut Keys For Changing Basic Parameters

    4. BASIC OPERATION 4.3.3 Manipulating shortcut keys for changing basic parameters The choice list or input field for waveform, frequency, amplitude, and DC offset can be immediately opened with the corresponding basic parameter shortcut key. ■ Waveform p. 44 　 The waveform choice list opens.

  • Page 47: Operations Of Enter Key, Cancel Key, And Undo Key

    4.3 Basic Settings and Operations 4.3.4 Operations of ENTER key, CANCEL key, and UNDO key ■ ENTER key operation The ENTER key can be used to perform the following actions. ・Open the input field or choice list for the selected item ・Set the value input from the numeric keypad ・Perform the function of the button displayed on the screen ■...

  • Page 48: Changing The Display Unit

    4. BASIC OPERATION 4.3.5 Changing the display unit a) Changing the prefix (unit prefix: k, m, M, etc.) Frequency is used as an example below. The amplitude and pulse width can be changed in a similar manner. Select frequency and then press the ENTER key to open the input field.
  • Page 49 4.3 Basic Settings and Operations b) Changing Vp-p, Vrms, user-defined unit, etc. Amplitude is used as an example below. The frequency and pulse width can be changed in a similar manner. Select amplitude and then press the ENTER key to open the input field. ENTER The input field opens.

  • Page 50: Ch1/Ch2 Switching Key And Active Channel (Fg420 Only)

    4. BASIC OPERATION 4.3.6 CH1/CH2 switching key and active channel (FG420 only) The channel to be set is switched each time the CH1/CH2 switching key is pressed. MENU This key is invalid in setting screens that are channel independent. FCTN OU CH 1/CH 2 NEXT The channel that is to be set is called the “active channel”...

  • Page 51: Actions Possible In The Utility Screen

    4.3 Basic Settings and Operations 4.3.7 Actions possible in the Utility screen a) Displaying the Utility screen The top menu window is displayed by pressing the MENU key. In this MENU Select [Utility] in window, select [Utility] and then press the the top menu and ENTER key to display the Utility press the ENTER...
  • Page 52 4. BASIC OPERATION Remote setting [Remote] Selects GPIB/USB and sets the GPIB address. The USB ID is also displayed. “8.1 Selecting Remote Interface [Remote]” in the Application Instruction Manual. Display setting [Display] Sets the backlight of the display. “8.2 Display Settings [Display]” in the Application Instruction Manual.

  • Page 53: Restoring The Initial Settings

    4.3 Basic Settings and Operations 4.3.8 Restoring the initial settings The initial settings can be restored from the Utility screen. The initial settings that are restored consist of continuous oscillation, sine wave, 1 kHz, 0.1 Vp-p/open, and output off. For a list of the initial settings, p.
  • Page 54 4. BASIC OPERATION • Return to previous setting [Last State] The operation differs as follows according to the method used the previous time to set the power off. If the power was switched off the previous time with the power switch on the panel The settings before the power was switched off are restored.

  • Page 55: Setting Methods For Main Items

    4.4 Setting Methods for Main Items 4.4 Setting Methods for Main Items This section describes the setting methods for the main items, mainly done on the Oscillator setting screen. “Oscillator” is displayed at the top left of the Oscillator setting screen. When another screen is displayed, pressing the MENU key displays the top menu, so select MENU...

  • Page 56: Setting The Waveform

    4. BASIC OPERATION 4.4.3 Setting the waveform Press the FCTN shortcut key to FCTN display waveform choice list. Alternatively, select the [Fctn] field and press the ENTER key to open the ENTER choice list. Waveform Even if there are several setting screens, choice list the [Fctn] field is always displayed at the top right of the first page.

  • Page 57: Performing Setting With Period

    4.4 Setting Methods for Main Items 4.4.5 Performing setting with period Settings can be performed using the period instead of the frequency. The frequency display can be changed to the period display with one of the following two methods. ○ Changing to period display with [Freq] / [Period] soft key When the frequency input field is open and the current frequency is displayed, the [Period] soft key is displayed.
  • Page 58 4. BASIC OPERATION b) Items that can be changed in the phase setting The following items can be changed with the phase setting. ■ The phase difference between the sync/sub-output’s reference phase sync output and waveform output can be changed The following example assumes a phase setting of +90°.
  • Page 59 4.4 Setting Methods for Main Items ■ The phase difference between channels during sync oscillation and 2-phase oscillation can be changed (FG420 only) The difference between the phase setting of each channel is the phase difference between channels. If [CH2 phase setting − CH1 phase setting] is positive, the waveform of CH2 is ahead of the waveform of CH1, as shown in the following figure.

  • Page 60: Setting The Amplitude

    4. BASIC OPERATION 4.4.7 Setting the amplitude a) Setting method Press the AMPTD shortcut key to AMPTD open amplitude input field. Alternatively, select the [Amptd] field and then press the ENTER key to open ENTER Amplitude input the amplitude input field. field Even if there are several setting screens, the [Amptd] field is always displayed on...
  • Page 61 4.4 Setting Methods for Main Items d) AC+DC limitation The maximum value for [AC amplitude + DC offset] is limited to ±10 V/open. For example, if the AC amplitude is 5 Vp-p/open, the DC offset range is limited to the range from −7.5 V/open to +7.5 V/open.

  • Page 62: Setting Dc Offset

    4. BASIC OPERATION 4.4.8 Setting DC offset a) Setting method Press the OFFSET shortcut key to OFFSET open offset input field. Alternatively, select the [Offset] field and then press the ENTER key to open ENTER the DC offset input field. DC offset input Even if there are several setting screens, field...

  • Page 63: Setting The Output Level With High Level/Low Level

    4.4 Setting Methods for Main Items 4.4.9 Setting the output level with high level/low level The output level can be set by specifying the high level and low level of the waveform, instead of setting the amplitude and DC offset. a) Changing the amplitude/DC offset display to high/low display There are three methods for changing the amplitude/DC offset display to high/low display, described below.

  • Page 64: Setting The Waveform Polarity And Amplitude Range

    4. BASIC OPERATION addition input setting. p. 54, p. 57 4.4.10 Setting the waveform polarity and amplitude range a) Setting method Select the polarity/amplitude range icon to Select the the right of the waveform name to display polarity/amplitude range icon and current polarity/amplitude range...
  • Page 65 4.4 Setting Methods for Main Items c) Amplitude range determination method Determine the amplitude range by observing how the waveform changes when the amplitude is changed. Under the initial settings, the waveform oscillating between the two polarities is set to ±FS, while the unipolar waveform is set to 0/+FS.

  • Page 66: How To Use Auto Range/Range Hold For The Output Voltage

    4. BASIC OPERATION 4.4.11 How to use auto range/range hold for the output voltage Since auto range is set as part of the initial settings, the optimum range is automatically selected according to the amplitude and DC offset (including settings with high level and low level).

  • Page 67: Setting The Load Impedance

    4.4 Setting Methods for Main Items 4.4.12 Setting the load impedance When the load impedance setting value is made the same as the actual load condition, the amplitude and DC offset (including setting with high level, low level) can be set with the voltage value that appears at load end.
  • Page 68 4. BASIC OPERATION Check ・The output impedance is constant at 50 Ω. ・The output impedance error and output voltage error are not corrected. The output voltage accuracy specification is the load-open value. IM FG410-01EN...

  • Page 69: Adding External Signal

    4.4 Setting Methods for Main Items 4.4.13 Adding external signal An external signal can be added to the waveform output of this equipment. a) Connecting the addition signal Connect the addition signal to the external modulation/addition input (MOD/ADD IN) BNC terminal on the front panel and the rear panel in the FG410 and FG420, respectively.
  • Page 70 4. BASIC OPERATION Once the external addition settings have been completed, select [OK] in the lower part of the window and then press the ENTER key to apply the external ENTER addition setting change and close the window. To not change the external addition Select [OK] and setting, select [Cancel] in the lower part of then press the...

  • Page 71: Setting The Square Wave Duty

    4.4 Setting Methods for Main Items 4.4.14 Setting the square wave duty The waveform is assumed to be set to [Square]. For the waveform setting method, p. 44. The duty setting unit is % only. Setting and display using time is not possible. a) Duty setting method Select the [Duty] field and then press the ENTER key to open the duty input...
  • Page 72 4. BASIC OPERATION c) Difference between normal and extended variable duty range Variable Range Characteristics Normal Setting range: 0.0100% to 99.9900% • Range in which the duty can be changed with little jitter and no pulse loss • The higher the frequency, the narrower the duty setting range. •...

  • Page 73: Setting The Pulse Width And Leading/Trailing Edge Time Of A Pulse Wave

    4.4 Setting Methods for Main Items 4.4.15 Setting the pulse width and leading/trailing edge time of a pulse wave The waveform is assumed to be set to [Pulse]. For the waveform setting method, p. 44. The pulse width can be set either with time or duty. The leading and trailing edge times can be set only with time.
  • Page 74 4. BASIC OPERATION ○ Pulse width duty 　→　Pulse width time When the pulse width duty input field opens and the current pulse width duty is displayed, the [Width] soft key is displayed. Press this soft key to open the pulse width time input field and change the item display from [Duty] to [Width].
  • Page 75 4.4 Setting Methods for Main Items f) Pulse width, leading edge time, and trailing edge time definitions and limitations The pulse width, leading edge time, and trailing edge time are defined as shown in the following figure. Pulse width 100% 90% 90% Leading edge Trailing edge time...

  • Page 76: Setting The Ramp Wave Symmetry

    4. BASIC OPERATION 4.4.16 Setting the ramp wave symmetry The waveform is assumed to be set to [Ramp] (ramp wave). For the waveform setting method, p. 44. The symmetry setting unit is % only. Setting and display with time is not possible. a) Symmetry setting method Select the [Symm] field and then press the ENTER key to open the symmetry...

  • Page 77: Using Parameter-Variable Waveforms

    4.5 Using Parameter-Variable Waveforms 4.5 Using Parameter-Variable Waveforms a) Outputting a parameter-variable waveform Select [PWF] parameter-variable waveform in the [Fctn] field and then press ENTER key. ENTER The waveform that is currently set as the parameter-variable waveform is output. Like for other waveforms, the polarity and Select [PWF] amplitude range of the waveform can also and then press...
  • Page 78 4. BASIC OPERATION To return the variable parameter values to their initial value, press the [Reset] soft key. The change is instantly reflected to the output waveform, and the shape of the set waveform is displayed in graph form. For details on the variable parameters, “1.

  • Page 79: Using Arbitrary Waveforms

    4.6 Using Arbitrary Waveforms 4.6 Using Arbitrary Waveforms a) Outputting an arbitrary waveform Select [ARB] (arbitrary waveform) in the [Fctn] field and then press the ENTER ENTER key. The currently set arbitrary waveform is output. Like for other waveforms, the polarity and Select [ARB] and amplitude range of the waveform can also then press the...
  • Page 80 4. BASIC OPERATION To apply the changes and quit the selection screen, press the [OK] soft key. To discard the changes and quit the selection screen, press the [Cancel] soft key. The changes can also be discarded and the selection screen exited by pressing a basic parameter shortcut key (the operation differs from that in the parameter-variable waveform selection screen).

  • Page 81: Modulation Setting And Manipulation

    4.7 Modulation Setting and Manipulation 4.7 Modulation Setting and Manipulation 4.7.1 Modulation types The following eight types of modulation can be done. • FM: Frequency Modulation p. 75 • FSK: Frequency Shift Keying This is binary frequency shift modulation. p. 76 •...

  • Page 82: Screen For Modulation Setting And Manipulation

    4. BASIC OPERATION 4.7.2 Screen for modulation setting and manipulation This subsection describes the screen configuration used in common for the modulated oscillation mode. The settings and manipulations are done on the Oscillator setting screen. The Oscillator setting screen is displayed as “Oscillator” in the top left part of the screen. When another screen is displayed, press the MENU key to display the top menu, then select MENU...
  • Page 83 4.7 Modulation Setting and Manipulation Modulation source [Source] Either an internal or external modulation source can be selected. p. 72 Internal modulation waveform [ModFctn] This is the internal modulation source waveform. Sine, square, triangular, rising ramp, falling ramp, noise, and arbitrary can be chosen from. p.

  • Page 84: Common Modulation Settings And Manipulations

    4. BASIC OPERATION 4.7.3 Common modulation settings and manipulations This subsection describes the settings and manipulations that are common to all types of modulation. a) To set the oscillation mode to modulation　→ Oscillation mode setting On the Oscillator setting screen, set [Mode] (oscillation mode) to [Modulation].
  • Page 85 4.7 Modulation Setting and Manipulation The internal modulation frequency cannot be set if the internal modulation waveform is noise. If the modulation type is FSK or PSK, the internal modulation waveform is fixed to a 50% duty square wave, and the internal modulation waveform cannot be selected. When an arbitrary waveform is selected for the internal modulation waveform, waveform data simply decimated to 4096 points from the start is used as the modulation waveform in case of the array format.
  • Page 86 4. BASIC OPERATION i) To output modulation sync signal, modulation waveform signal　→ Sync output setting Perform the sync output setting with [SyncOut] (sync output) on the 2nd page of the setting screen. The sync output setting can be chosen from the following three. ・Signal synchronized with reference phase of waveform [Sync] ・Signal synchronized with internal modulation waveform [ModSync] ・Internal modulation waveform [ModFctn]...

  • Page 87: Setting Fm

    4.7 Modulation Setting and Manipulation 4.7.4 Setting FM The output frequency varies according to the instantaneous value of the modulation signal. For the manipulation methods that are common with the modulation setting screen, refer to pp. 70 and 72. a) FM example Frequency shifting of the output signal grows larger when the modulation signal swings to the positive side.

  • Page 88: Setting Fsk

    4. BASIC OPERATION 4.7.5 Setting FSK This is binary frequency shift modulation by which the output frequency switches between the carrier frequency and hop frequency according to the modulation signal. For the manipulation methods that are common with the modulation setting screen, refer to pp.

  • Page 89: Setting Pm

    4.7 Modulation Setting and Manipulation 4.7.6 Setting PM The output phase varies according to the instantaneous value of the modulation signal. For the manipulation methods that are common with the modulation setting screen, refer to pp. 70 and 72. a) PM example Phase shifting of the output signal grows larger when the modulation signal swings to the positive side.

  • Page 90: Setting Psk

    4. BASIC OPERATION 4.7.7 Setting PSK This is binary phase shift modulation by which the output phase is offset according to the modulation signal. For the manipulation methods that are common with the modulation setting screen, refer to pp. 70 and 72. a) PSK example Since the phase changes suddenly, the output signal waveform is non-continuous.

  • Page 91: Setting Am

    4.7 Modulation Setting and Manipulation 4.7.8 Setting AM The output amplitude changes according to the instantaneous value of the modulation signal. For the manipulation methods that are common with the modulation setting screen, refer to pp. 70 and 72. a) AM example The amplitude of the output signal grows larger when the modulation signal swings to the positive side.

  • Page 92: Setting Am (Dsb-Sc)

    4. BASIC OPERATION 4.7.9 Setting AM (DSB-SC) The output amplitude varies according to the instantaneous value of the modulation signal. This is AM without the carrier frequency component. DSB-SC stands for Double Side Band − Suppressed Carrier. For the manipulation methods that are common with the modulation setting screen, refer to pp.

  • Page 93: Setting Dc Offset Modulation

    4.7 Modulation Setting and Manipulation 4.7.10 Setting DC offset modulation DC offset varies according to the instantaneous value of the modulation signal. For the manipulation methods that are common with the modulation setting screen, refer to pp. 70 and 72. a) DC offset modulation example DC offset of the output signal grows larger when the modulation signal swings to the positive side.

  • Page 94: Setting Pwm

    4. BASIC OPERATION 4.7.11 Setting PWM The duty of square waves and pulse waves varies according to the instantaneous value of the modulation signal. For the manipulation methods that are common with the modulation setting screen, refer to pp. 70 and 72. a) PWM example The duty of the output signal grows larger when the modulation signal swings to the positive side.

  • Page 95: Sweep Setting And Manipulation

    4.8 Sweep Setting and Manipulation 4.8 Sweep Setting and Manipulation 4.8.1 Sweep types The following five types of sweep can be done. • Frequency sweep　 p. 95 • Phase sweep　 p. 97 • Amplitude sweep　 p. 99 • DC offset sweep　 p.
  • Page 96 4. BASIC OPERATION c) 2nd page of setting screen: Screen for the main sweep settings The figure is an example that shows frequency selection as the sweep type. Sweep start value Indicates that the 2nd page is Sweep stop value displayed Sweep type Sweep time...
  • Page 97 4.8 Sweep Setting and Manipulation d) 3rd page of setting screen: Screen for complementary settings for sweep The figure is an example that shows frequency selection as the sweep type. Stop level of gated single- shot sweep Indicates that the 3rd page is Sweep control with displayed...

  • Page 98: Common Sweep Settings And Manipulations

    4. BASIC OPERATION 4.8.3 Common sweep settings and manipulations This subsection describes the settings and manipulations that are used in common regardless of the item to be swept. a) To set the oscillation mode to sweep → Oscillation mode setting On the Oscillator setting screen, set [Mode] (oscillation mode) to [Sweep].
  • Page 99 4.8 Sweep Setting and Manipulation 　One-way sweep Sweep value f) To sweep a triangular wave → Shuttle sweep Set [SwpFctn] (sweep function) on the 2nd page of the setting screen to [Lin-Shuttle] (shuttle). In the case of frequency sweep, it is also possible to set the slope to [Lin-Shuttle] (linear) or [Log-Shuttle] (log).
  • Page 100 4. BASIC OPERATION Since the sweep time is the transition time from the start value to the stop value, when the sweep function is shuttle, the repeat period is twice the length of the sweep time setting, as shown in the following figure. 　Continuous one-way sweep Stop value Sweep value...
  • Page 101 4.8 Sweep Setting and Manipulation 　Single-shot shuttle sweep Trigger Stop value Sweep value Start value Sweep time Sweep time Frequency sweep example j) To output the waveform only during sweep execution　→ Gated single-shot sweep Set [SwpMode] (sweep mode) on the 2nd page of the setting screen to [Gated] (gated single- shot).
  • Page 102 4. BASIC OPERATION 　Gated single-shot one-way sweep Trigger Stop value Sweep value Start value Start value Sweep time Frequency sweep example 　Gated single-shot shuttle sweep Trigger Stop value Sweep value Start value Sweep time Sweep time Frequency sweep example Check In the case of phase sweep, the start phase setting is the oscillation start phase, and the stop phase setting is the oscillation stop phase.
  • Page 103 4.8 Sweep Setting and Manipulation manipulation. Note that, in the case of the FG420, the MAN TRIG key works for the channel whose display is active. For details on the channel whose display is active, p. 38. To use only manual trigger manipulation and remote trigger manipulation as the trigger, set the trigger source to [Ext] (external).
  • Page 104 4. BASIC OPERATION In the case of gated single-shot sweep, the state is the start value oscillation state. To stop oscillation, press the [Stop] soft key. p) To output the sweep stop value → [StpState] soft key Press the [StpState] soft key to set the sweep stop value output state. The status of the equipment under test at the sweep stop value can be checked.
  • Page 105 4.8 Sweep Setting and Manipulation The relationships between the sweep values and the various signals are shown in the following figure. When stop value < start value, the slope of the sweep X drive output is the opposite of that in the figure. Continuous sweep One way Shuttle...
  • Page 106 4. BASIC OPERATION r) To substitute center value to marker value, or substitute marker value to center value When the [Ctr ⇒ Mkr] soft key on the 2nd page of the setting screen is pressed, the center value is substituted to the marker value. When the [Mkr ⇒ Ctr] soft key is pressed, the marker value is substituted to the center value.

  • Page 107: Setting Frequency Sweep

    4.8 Sweep Setting and Manipulation 4.8.4 Setting frequency sweep For the manipulation methods that are common with the sweep setting screen, refer to pp. 83 and 86. a) Frequency sweep example The following is an example of continuous, linear shuttle sweep. 　Shuttle sweep Stop value Sweep value...
  • Page 108 4. BASIC OPERATION Set the following items as needed. • Marker frequency [Marker] (2nd page of setting screen) p. 92 • Stop level [StpLvl] (3rd page of setting screen) p. 89 This setting can be used only for gated single-shot sweep. •...

  • Page 109: Setting Phase Sweep

    4.8 Sweep Setting and Manipulation 4.8.5 Setting phase sweep For the manipulation methods that are common with the sweep setting screen, refer to pp. 83 and 86. a) Phase sweep example The following is an example of continuous, linear shuttle sweep. 　Shuttle sweep Stop value Sweep value...
  • Page 110 4. BASIC OPERATION • Sweep function [SwpFctn] One-way/shuttle can be chosen from. p. 86 Setting with [Center] (center phase) and [Span] (span phase) instead of the start phase and stop phase is also possible. p. 86 When the sweep mode is single-shot or gated single-shot, [Trig] (trigger condition) must be set.

  • Page 111: Setting Amplitude Sweep

    4.8 Sweep Setting and Manipulation 4.8.6 Setting amplitude sweep For the manipulation methods that are common with the sweep setting screen, refer to pp. 83 and 86. a) Amplitude sweep example The following is an example of continuous, linear shuttle sweep. 　Shuttle sweep Stop value Sweep value...
  • Page 112 4. BASIC OPERATION Set the following items as needed. • Marker amplitude [Marker] (2nd page of setting screen) p. 92 • Stop level [StpLvl] (3rd page of setting screen) p. 89 This setting can be used only for gated single-shot sweep. •...

  • Page 113: Setting Dc Offset Sweep

    4.8 Sweep Setting and Manipulation 4.8.7 Setting DC offset sweep For the manipulation methods that are common with the sweep setting screen, refer to pp. 83 and 86. a) DC offset sweep example The following is an example of continuous, linear shuttle sweep. 　Shuttle sweep Stop value Sweep value...
  • Page 114 4. BASIC OPERATION Set the following items as needed. • Marker DC offset [Marker] (2nd page of setting screen) p. 92 • Stop level [StpLvl] (3rd page of setting screen) p. 89 This setting can be used only for gated single-shot sweep. •...

  • Page 115: Setting Duty Sweep

    4.8 Sweep Setting and Manipulation 4.8.8 Setting duty sweep For the manipulation methods that are common with the sweep setting screen, refer to pp. 83 and 86. a) Duty sweep example The following is an example of continuous, linear shuttle sweep. 　Shuttle sweep Stop value Sweep value...
  • Page 116 4. BASIC OPERATION When the sweep mode is single-shot or gated single-shot, [Trig] (trigger condition) must be set. p. 90 Set the following items as needed. • Marker duty [Marker] (2nd page of setting screen) p. 92 • Stop level [StpLvl] (3rd page of setting screen) p.

  • Page 117: Burst Setting And Manipulation

    4.9 Burst Setting and Manipulation 4.9 Burst Setting and Manipulation 4.9.1 Burst oscillation types The following four types of burst oscillation can be done. • Auto burst Oscillation and stop are automatically repeated with the respectively specified wave number. No trigger signal is required. p.

  • Page 118: Auto Burst

    4. BASIC OPERATION 4.9.2 Auto burst Oscillation and stop are automatically repeated with the respectively specified wave number. No trigger signal is required. Settings and manipulations are done on the Oscillator setting screen. “Oscillator” is displayed at the top left of the Oscillator setting screen. When another screen is displayed, pressing the MENU key displays the top menu, so select [Oscillator] and then press MENU...
  • Page 119 4.9 Burst Setting and Manipulation c) Auto burst setting screen ■ 1st page: Screen for the basic parameters These are the common setting items that are common to all the oscillation modes. Indicates that the 1st page is displayed Set the oscillation mode to [Burst] Press the NEXT Oscillation start/stop...
  • Page 120 4. BASIC OPERATION f) To start auto burst → Automatically starts When, in the auto burst mode, the mode is set to the burst oscillation mode, burst starts automatically. However, if the burst setting is improper, burst oscillation will not start. ([Conflict!] is displayed in the top right part of the screen.) When the [?] soft key appearing at the left end is pressed, a message about the inappropriate setting is displayed.

  • Page 121: Trigger Burst

    4.9 Burst Setting and Manipulation 4.9.3 Trigger burst Oscillation with the specified wave number is done each time a trigger is received. Settings and manipulations are done on the Oscillator setting screen. “Oscillator” is displayed at the top left of the oscillator setting screen. When another screen is displayed, pressing the MENU key displays the top menu, so select [Oscillator] and then press MENU...
  • Page 122 4. BASIC OPERATION c) Trigger burst setting screen ■ 1st page: Screen for the basic parameters These are the common setting items that are common to all the oscillation modes. Indicates that the 1st page is displayed Set the oscillation mode to [Burst].
  • Page 123 4.9 Burst Setting and Manipulation number is set to an integer value. [StpLvl] (stop level) on the 2nd page of the setting screen is normally set to [Off] (off). p. 112 A trigger is required for trigger burst. Refer to the following item. f) Trigger settings for trigger burst The trigger can be selected from internal trigger oscillator, external signal, manual trigger key manipulation, and remote trigger manipulation.
  • Page 124 4. BASIC OPERATION ■ When [Sync] is selected A TTL level signal that rises at the reference phase of the waveform is output from the sync/ sub-output terminal. ■ When [BrstSync] is selected A TTL level signal synchronized with the burst oscillation is output from the sync/sub- output terminal.

  • Page 125: Gate Oscillation

    4.9 Burst Setting and Manipulation 4.9.4 Gate oscillation Oscillation is done in integer cycles or half cycles while the gate is on. The settings and manipulations are done on the Oscillator setting screen. “Oscillator” is displayed at the top left of the Oscillator setting screen. When another screen is displayed, pressing the MENU key displays the top menu, so select [Oscillator] and then press MENU...
  • Page 126 4. BASIC OPERATION c) Gate oscillation setting screen ■ 1st page: Screen for the basic parameters These are the common setting items that are common to all the oscillation modes. Indicates that the 1st page is displayed Set the oscillation mode to [Burst] Press the NEXT Oscillation start/stop...
  • Page 127 4.9 Burst Setting and Manipulation normally. p. 116 A trigger (gate) is required for gate oscillation. Refer to the following item. f) Trigger (gate) settings for gate oscillation The trigger (gate) can be selected from internal trigger oscillator, external signal, manual trigger key manipulation, and remote trigger manipulation.
  • Page 128 4. BASIC OPERATION ■ When [BrstSync] is selected A TTL level signal synchronized with the gate oscillation is output from the sync/sub-output terminal. As shown in the following figure, this signal is low during oscillation and high during oscillation stop. Note that this differs from the gate signal. When the signal during burst is observed with an oscilloscope, it can be used as the trigger signal for the oscilloscope.
  • Page 129 4.9 Burst Setting and Manipulation k) Noise gate oscillation Noise having no cycle, the gate-on period is the oscillation period, and the gate-off period is the oscillation stop period. Further, since noise has no phase, the stop level setting is always enabled.

  • Page 130: Triggered Gate Oscillation

    4. BASIC OPERATION 4.9.5 Triggered gate oscillation Triggered gate oscillation is gate oscillation that switches the gate on/off each time a trigger is received. The settings and manipulations are done on the Oscillator setting screen. “Oscillator” is displayed at the top left of the Oscillator setting screen. When another screen is displayed, press the MENU key to display the top menu, then select [Oscillator] and press the MENU...
  • Page 131 4.9 Burst Setting and Manipulation c) Triggered gate oscillation setting screen ■ 1st page: Screen for the basic parameters These are the common setting items that are common to all the oscillation modes. Indicates that the 1st page is displayed Set the oscillation mode to [Burst] Press the NEXT...
  • Page 132 4. BASIC OPERATION cycle) normally. p. 121 A trigger is required for triggered gate oscillation. Refer to the following item. f) Trigger settings for triggered gate oscillation The trigger can be selected from internal trigger oscillator, external signal, manual trigger key manipulation, and remote trigger manipulation.
  • Page 133 4.9 Burst Setting and Manipulation signal for the oscilloscope. Trigger signal Internal gate signal Gate on Gate off Gate on Gate off Oscillation Stop Oscillation Stop Burst sync signal Output signal i) To execute oscillation in half-cycle units: Set oscillation stop unit to half cycle To stop oscillation in half-cycle units, set [OscStop] (oscillation stop unit) on the 2nd page of the setting screen to [HalfCycle] (half cycle).

  • Page 134: Saving And Recalling Settings

    SAVING AND RECALLING SETTINGS 5.1 Saving Settings The current setting conditions can be saved to the setting memory and then recalled for use. The setting saving operation is done on the Store Memory screen. The settings when the power supply is cut off/restored are saved to setting memory No. 1. p.
  • Page 135 5.1 Saving Settings b) Restoring the saved contents to the initial settings Similarly to the saving operation, after Press the [Clear] soft key to open setting the setting memory number, press the dialog box for the [Clear] soft key. This opens the dialog checking the initialization box for checking the initialization operation.

  • Page 136: Recalling Settings

    5. SAVING AND RECALLING SETTINGS 5.2 Recalling Settings The setting conditions saved to the setting memory can be recalled for use. The setting recall operation is done on the Recall Memory screen. At shipping, the same contents as the initial settings are saved to all the setting memories. a) Setting recall procedure Press the MENU key to display the...
  • Page 137 5.2 Recalling Settings b) Changing the setting memory name Similarly to the saving operation, after Press the setting the setting memory number, press [Rename] soft key to open the the [Rename] soft key to open the setting setting memory memory name input field. name input field The name input method is the same as in the case of the Store Memory screen.

  • Page 138: List Of Initial Settings

    LIST OF INITIAL SETTINGS The following initial settings are restored by executing [Reset] (setting initialization) on the Utility screen. These items are also the targets to be saved in the setting memory (except for the output on/off setting). The arbitrary waveform memory, setting memory, sequence memory, user-defined unit definition, output setting at power-on, panel operation setting, and remote setting are not initialized.
  • Page 139 ■ Sweep Sweep type Frequency Frequency sweep range 1 kHz to 10 kHz Phase sweep range −90° to 90° Amplitude sweep range 0.1 Vp-p to 0.2 Vp-p DC offset sweep range −0.1 V to 0.1 V Duty sweep range 40% to 60% Sweep time 0.1 s Sweep mode...
  • Page 140 6. LIST OF INITIAL SETTINGS The following settings are factory-default settings for items which do not return to their initial values even if initialization is executed once the settings are changed by the user. ■ User-defined unit definition Unit name usr1 to usr6 Calculation formula (h+n)*m...

  • Page 141: Specifications

    SPECIFICATIONS The values of items marked with *1 are guaranteed values. All other values are either nominal values or typical (typ.) values, and are not guaranteed. Conditions unless otherwise mentioned are as follows: Continuous oscillation, 50 Ω load, 10 Vp-p/50 Ω amplitude setting, 0 V DC offset setting, auto-range, ±FS waveform amplitude range, external addition off, AC voltage = RMS value measurement.

  • Page 142: Frequency, Phase

    7. SPECIFICATIONS 7.3 Frequency, Phase Frequency setting range Oscillation Mode Continuous, Modulated, Sweep (Gated Single- Sequence Sweep (Continuous, Shot), Burst Single-Shot) Waveform Sine 0.01 μHz to 30 MHz 0.01 μHz to 10 MHz 0.01 μHz to 10 MHz 0.01 μHz to 15 MHz 0.01 μHz to 10 MHz 0.01 μHz to 10 MHz Square...

  • Page 143: Load Impedance Setting

    7.5 Signal Characteristics Accuracy ±( | 1% of DC offset setting [V] | +5mV + 0.5% of amplitude setting [Vp-p])/open Condition: Sine wave output of 10 MHz or lower, 20°C to 30°C Outside 20°C to 30°C temperature range, 1 mV/°C typ. is added 7.4.3 Load impedance setting Functions Setting and display of the amplitude and DC offset for...

  • Page 144: Square Wave

    7. SPECIFICATIONS Harmonic spurious 0.5 Vp-p to 2 Vp-p/50 Ω 2 Vp-p to 10 Vp-p/50 Ω 　Condition: Amplitude setting 1 MHz or lower −60 dBc or lower −60 dBc or lower 1 MHz to 10 MHz −50 dBc or lower −43 dBc or lower −40 dBc or lower −30 dBc or lower...

  • Page 145: Ramp Wave

    7.5 Signal Characteristics Leading edge time, trailing edge time Setting range 15.0 ns to 58.8 Ms (3 digits or 0.1 ns resolution) Leading edge time trailing edge time independently settable Minimum setting value Largest of either 0.01% of period or 15 ns Pulse width, leading edge time, trailing edge time limits The pulse width time, leading edge time, trailing edge time, and period are mutually constrained by the following equations.
  • Page 146 7. SPECIFICATIONS b) Transient sine group Waveform Waveform Description and Variable Parameters Name Example On-phase Sine wave with slope into on state controlled Complete-on phase (0.00° to 360.00°) sine On-slope time (0.00% to 50.00% of basic period) Off-phase Sine wave with slope into off state controlled Off-phase (0.00°...
  • Page 147 7.5 Signal Characteristics d) Transient response group Waveform Waveform Description and Variable Parameters Name Example Exponential First order LPF step response waveform rise Time constant (0.01% to 100.00% of basic period) Exponential First order HPF step response waveform fall Time constant (0.01% to 100.00% of basic period) Second Second order LPF step response waveform order LPF...

  • Page 148: Modulated Oscillation Mode

    7. SPECIFICATIONS Waveform Waveform Description and Variable Parameters Name Example Half-sine Pulse whose rise and fall are half-sine waveform edge pulse Leading edge time (0.00% to 100.00% of basic period) Trailing edge time (0.00% to 100.00% of basic period) Duty (0.00% to 100.00%） Bottom Ramp waveform with bottom level as reference referenced...

  • Page 149: Modulation Conditions

    7.6 Modulated Oscillation Mode Input connector Use of external trigger input. Input voltage and input impedance follow the external trigger input specifications. 7.6.2 Modulation conditions ■ FM Carrier waveform Standard waveform other than noise, pulse wave and DC, and arbitrary waveform Peak deviation setting range 0.00 μHz to less than 15 MHz (8 digits or 0.01 μHz resolution)

  • Page 150: Sweep Oscillation Mode

    7. SPECIFICATIONS Extended variable duty range 0.0000% to 50.0000% (0.0001% resolution) Pulse wave 0.0000% to 49.9000% (0.0001% resolution) 7.7 Sweep Oscillation Mode 7.7.1 General Sweep types Frequency, phase, amplitude, DC offset, duty Sweep functions One-way (ramp waveform shape), shuttle (triangular waveform shape) (selectable) Linear, log (frequency sweep only) (selectable) Sweep range setting...

  • Page 151: Sweep Conditions

    7.8 Burst Oscillation Mode Sweep external trigger input (used for single-shot sweep and gated single-shot sweep) Polarity Positive, negative, off (selectable) Input connector Use of external trigger input. Input voltage and input impedance follow external trigger input specifications. 7.7.2 Sweep conditions ■...

  • Page 152: Triggers

    7. SPECIFICATIONS Setting range of mark wave number 0.5 cycles to 999,999.5 cycles, in 0.5-cycle units Setting range of space wave number 0.5 cycles to 999,999.5 cycles, in 0.5-cycle units Oscillation stop unit during gate 1 cycle, 0.5 cycles (selectable) Oscillation start/stop phase setting range −1800.000°...

  • Page 153: Sequence

    7.10 Sequence 7.10 Sequence Number of saved sequences 10 sequences (saved to non-volatile memory) Maximum number of steps Maximum of 255 steps per sequence (not including step of pre-start status) Inter-channel operation In sequence mode, the mode of both channels is the sequence mode.

  • Page 154: Other I/Os

    7. SPECIFICATIONS 7.11 Other I/Os External 10 MHz frequency reference input Frequency reference selection External reference enable, disable (selectable) Input voltage 0.5 Vp-p to 5 Vp-p Maximum allowed input 10 Vp-p Input impedance 1 kΩ, unbalanced, AC coupled Input frequency 10 MHz (±0.5% (±50 kHz)) Input waveform Sine wave or square wave (50 ±5% duty)

  • Page 155: 2-Channel Ganged Operation (Fg420 Only)

    7.12 2-channel ganged operation (FG420 only) 7.12 2-channel ganged operation (FG420 only) Channel modes Channel Mode Operation Independent Independent setting 2-phase Holds same frequency. During frequency sweep, internal frequency modulation, and internal FSK, the same frequency is controlled to be held.

  • Page 156: Synchronous Operation Of Multiple Units

    7. SPECIFICATIONS 7.13 Synchronous Operation of Multiple Units Connection Connection method 1 Master unit Slave unit Slave unit Slave unit 10MHz 10MHz 10MHz 10MHz REF IN REF IN REF IN REF IN 50 Ω External reference use possible termination T divider T divider resistor Connection method 2...

  • Page 157: Other Functions

    7.15 Other Functions 7.15 Other Functions Setting saving capacity 10 settings (saved to non-volatile memory) Remote control GPIB, USBTMC (SCPI-1999, IEEE-488.2） 7.16 Options PA-001-1318 multi-I/O cable Cable with connector on one end, for connection to multi-I/O connector on rear panel. 2 m length. Cut off at one end.
  • Page 158 7. SPECIFICATIONS Warm-up time 30 minutes or more typ. Pollution degree External dimensions 216 (W) 88 (H) 332 (D) mm (excluding projections) × × Weight Approx. 2.1 kg (excluding accessories, weight of main unit only) Safety and EMC Applied only to models with the CE marking displayed on the rear panel Safety EN61010-1:2010 EN61326-1:2006 Class A...

  • Page 159: External Dimensions (Fg410)

    7.17 General Characteristics ■ External dimensions (FG410) Unit: mm IM FG410-01EN...

  • Page 160: External Dimensions (Fg420)

    7. SPECIFICATIONS ■ External dimensions (FG420) Unit: mm IM FG410-01EN...

  • Page 161: Rack Mounting Dimensions

    RACK MOUNTING DIMENSIONS RACK MOUNTING DIMENSIONS ■ Inch rack mounting dimensions (for 1 unit) Unit: mm IM FG410-01EN...

  • Page 162: Inch Rack Mounting Dimensions (For 2 Units)

    RACK MOUNTING DIMENSIONS ■ Inch rack mounting dimensions (for 2 units) Unit: mm IM FG410-01EN...

  • Page 163: Millimeter Rack Mounting Dimensions (For 1 Unit)

    RACK MOUNTING DIMENSIONS ■ Millimeter rack mounting dimensions (for 1 unit) Unit: mm IM FG410-01EN...

  • Page 164: Millimeter Rack Mounting Dimensions (For 2 Units)

    RACK MOUNTING DIMENSIONS ■ Millimeter rack mounting dimensions (for 2 units) Unit: mm IM FG410-01EN...

  • Page 165: Index

    Index 10 MHz REF IN ...........15 dBV .............. 48 42 Vpk ........... IV DC offset setting ......... 50 display format switching ......28 AC+DC limitation ......49 accessories check ...........4 ENTER key ..........35 active channel ..........38 external dimensions (FG410) ....147 adding external signal ........57 external dimensions (FG420) ....
  • Page 166 modulation/addition input .....14 numeric input ..........31 multi-I/O ..........16 numeric keypad .......... 31 sync/sub-output ........13 trigger input ...........14 OFFSET key ..........50 waveform output ........12 operating principles ........2 initial settings list ........126 options ............5 installation .............5 oscillation mode setting ......43 inverted (waveform polarity) ......52 OUT key ............
  • Page 167 restoring the saved contents to the start sweep ..........91 initial settings ...........123 start sweep in synchronization with a trigger ..........88 start value output ......... 91 safety check ...........4 start/stop phase ........89 safety precautions ........III stop level ..........89 safety-related symbols .......
  • Page 168 trigger settings ........120 TRIG’D lamp ...... 90 UCal .............25 uncalibrated ..........25 UNDO key ...........35 unit changing ..........36 unit of amplitude changing ......48 user-defined unit .........37 Utility screen function ........39 Vpk ............48 Vp-p ............48 Vrms .............48 waste disposal ..........IV waveform amplitude range ......52 waveform polarity ........52 waveform polarity and amplitude range...
  • Page 169 IM FG410-01EN...
  • Page 170 If there are any misplaced or missing pages, we will replace the manual. Contact the sales representative. NOTES: ・ Reproduction of the contents of this manual is forbidden by applicable laws. ・ The contents of this manual may be revised without notice. ・...

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