Anritsu MG3641A, MG3642A 4.4 Setting the Frequency

SECTION 4 OPERATING INSTRUCTIONS

4.4 Setting the Frequency

4.4.1 Setting the Frequency

You can set up a frequency by operating the number keys, step keys, and rotary knob.

Pressing the [Frequency] key in the Entry zone turns on the lamp of the [Frequency] key and the Frequency lamp in

the Edit zone. This readies the unit for frequency setting to be made via the number keys, and the step keys and

rotary knob in the Edit zone.

(1) Setting by number keys

You use the number keys to enter numeric values and units for setting.

(2) Setting by step keys

You use the step keys [∨][^] to step up or down a frequency.

You enter a step size by operating the [Shift] key, [Frequency] (Freq Step Size) key, number keys, and the unit

keys, in this order. The setting is completed the moment you press a unit key.

(3) Setting by rotary knob

Turning the rotary knob raises or lowers a frequency.

You select a resolution by the Resolution [<], [>] keys.

Moreover, you can "knob up" or "knob down" the step size you entered in (2) above by operating the [Shift] key

and the [>] (Knob Step) key in this order.

MG3641A/MG3642A front panel

[Frequency] key

[Shift] key

Contents

Main ii Safety Symbols Symbols used in manual Safety Symbols Used on Equipment and in Manual DANGER WARNING CAUTION iii iv v vi vii Equipment Certificate Anritsu Warranty Anritsu Corporation Contact viii Notes On Export Management Page x CE Conformity Marking CE marking 1. Product Model 2. Applied Directive 3. Applied Standards Page C-tick Conformity Marking xiii Power Line Fuse Protection Page I SECTION 4 OPERATING INSTRUCTIONS ............................................................. 4-1 II III Page 1-1 SECTION 1 GENERAL 1.1 Brief Description 1-2 1.2 Operation Manual Table 1-1 1-3 1.3 Composition of Devices 1.3.1 Standard Composition Table 1-2. Standard Composition of Devices 1-4 1.3.2 Options Table 1-3. Options 1-5 1.4 Application Parts Table 1-4. Application Parts 1-6 1.5 Specifications 1-7 1-8 1-9 1-10 1-11 Page 2-1 SECTION 2 PRECAUTION Fig. 2-1. Clearance for Fan CAUTION: 2.1 Installation Precautions 2.1.1 Installation site environmental conditions 2-2 2.2 Safety Measures 2.2.1 General power supply safety measures 2.2.2 Reverse power input to RF output connector Page 2-4 2.4 Preparation Before Power-On WARNING CAUTION 2-5 2.4.1 Connecting the Power Cord WARNING CAUTION 2-6 2.4.2 Fuse Replacement . 3-1 SECTION 3 PANEL LAYOUT 3.1 Panel Layout 3.1.1 Front panel layout 3-2 3-3 3.1.2 Rear panel layout Page SECTION 4 OPERATING INSTRUCTIONS 4.1 Turning Power On/Off DANGER WARNING Table 4-1. Indications of Power Indicator Lamps and Power Statuses 4.1.1 Turning Power On Note : Page 4.2 Explanation of Screens 4.3 Initial Settings Page 4.4 Setting the Frequency 4.4.1 Setting the Frequency 4.4.2 Displaying the Frequency Relative Value 4.4.3 Frequency Offset 4.5 Setting the Output Level 4.5.1 Setting the Output Level front panel [Shift] key [Level] key 4.5.2 Displaying the Output Level Relative Value 4.5.3 Output Level Offset 4.5.4 Level Continuous Mode Page 4.5.6 Special Functions Related to Level Page 4.6 Setting the Modulation 4.6.1 Outline of Modulation 4.6.2 Setting the Modulation Function 4.6.3 Setting the Modulation Factor and Frequency Deviation 4.6.4 Setting Range of FM Frequency Deviation 4.6.5 Polarity of Modulation Signal 4.6.6 Pulse Modulation Page 4.7 Setting the Modulation Signal Source 4.7.1 Internal Modulation Signal (Int1) 4.7.2 Internal Modulation Signals (Int2, Int3) 4.7.3 External Modulation Signals (Ext1, Ext2) MG3641A/MG3642A front panel Page Page Page 4.9 Memory Functions 4.9.1 Outline of Memory Functions 4.9.2 Storing in the Memory 4.9.3 Recalling Memory Contents Page 4.9.4 Clearing the Memory 4.9.5 Selecting the Memory Recall Mode 4.10 Sweep Functions 4.10.1 Outline of Sweep Functions 4.10.2 Setting and Executing the Sweep Page Page 4.10.3 Sweep Auxiliary Outputs Page 4-41 4.11 Trigger Function 4.11.1 Outline of trigger function 4.11.2 Registering the trigger program 4-43 4.11.3 Executing the trigger program 4.11.4 Checking the contents of the trigger program Page 4.12.2 Setting Bell Alarm On/Off 4-47 4.12.3 Setting address and only mode of GPIB 4.12.4 Panel Lock 4-49 4.13 Removing Reverse Power Protection (RPP) Circuit Operation 4.14 Error Messages 4-51 Page SECTION 5 MEASUREMENT 5.1 Measurement of Sensitivity 5.1.1 Measuring 20 dB NQ sensitivity Fig. 5-1. Measuring 20 dB NQ Sensitivity 5.1.2 Measuring 12 dB SINAD sensitivity Fig. 5-2. Measuring 12 dB SINAD Sensitivity 5.2 Measuring the 1-signal Selectivity 5.2.1 Measuring selectivity characteristics of the FM receiver in 20 dB NQ method Fig. 5-3. Measuring Selectivity in 20 dB NQ Method Page 5.2.2 Measuring spurious response Fig. 5-4. Measuring Spurious Sensitivity Page 5.3 Measuring the 2-signal Selectivity 5.3.1 Measuring the sensitivity blocking of the FM receiver Fig. 5-5. Measuring the 2-signal Selectivity Page 5.3.2 Measuring the cross-modulation characteristics NOTE Page Page 6-1 SECTION 6 GPIB 6.1 Outline of GPIB 6.1.1 Overview 6.1.2 GPIB functions 6-2 6.1.3 Setup example 6-3 6.1.4 Standard 6-4 6.2 Device Message List Fig. 6-1. SCPI Command Tree Example 6.2.1 Outline 6.2.2 General Information On SCPI 6-5 6.2.4 Writing Commands Fig. 6-2. Writing Commands 6-6 6.2.5 Compounding Commands 6-7 6.2.6 Parameter Table 6-1. Contents of Parameter Types 6.2.7 Unit Table 6-2. Contents of Unit Types 6-8 6.2.8 Command Tree 6-9 6-10 6-11 6-12 6-13 6-14 6.3 Connecting the GPIB Cable 6-15 6.4 Device Message Format 6.4.1 Program message format ; 6-16 6-17 6-18 6.4.2 Response message format ; 6-19 Page 6-21 6.5.2 IEEE488.2-based status register Standard Status Model Diagram 6-22 6.5.3 SCPI standard status register 6-23 6.5.4 Reading, writing, clearing, and resetting the status register 6-24 6-25 6.5.5 SCPI error messages 6-26 6-27 6.6 Initializing Device 6.6.1 Bus initialization 6.6.2 Message initialization 6.6.3 Device initialization 6-28 6.7 Detailed Description of Commands 6.7.1 Frequency subsystem 6-29 6-30 6-31 6-32 6.7.2 Output level subsystem 6-33 6-34 6-35 6-36 6-37 6-38 6.7.3 AM subsystem 6-39 6.7.4 FM subsystem 6-40 6-41 6.7.5 PM subsystem 6-42 6.7.6 Modulation source subsystem 6-43 6-44 6-45 6.7.7 MEMORY subsystem 6-46 6-47 6.7.8 Display subsystem 6-48 6.7.9 System subsystem 6-49 6.7.10 Status subsystem 6-50 6-51 6.8 IEEE488.2 Common Command 6-52 Page 6-54 6-55 6-56 6.10 GPIB Command Interchange Function 6.10.1 Outline 6-57 6.10.2 Restrictions in MG3633A command interchange mode 6-58 6-59 6-60 6.10.3 Restrictions in MG3631A/32A command interchange mode Page Page Page 7-2 7.2 Performance Test Device List Table 7-1. Performance Test Device List 7-3 7.3 Performance Test 7-4 7.3.1 Output frequency Fig. 7-1. Output Frequency Test 7-5 7.3.2 Output level frequency characteristics Fig. 7-2. Output Level Frequency Characteristic Test 7-6 7.3.3 Output level accuracy 7-7 7-8 7.3.4 FM deviation and FM distortion Fig. 7-4. FM Deviation and FM Distortion 7-9 7-10 7.3.5 AM modulation factor and AM distortion Page Page 8-1 SECTION 8 CALIBRATION 8.1 Calibration Required 8.2 Calibration Device List Table 8-1. Calibration Device List 8-2 8.3 Calibration 8-3 Fig. 8-1. Calibration of Reference Oscillator Note Page 9-1 SECTION 9 STORAGE AND TRANSPORTATION 9.1 Daily Servicing and Preventive Maintenance Table 9-1. Regular Servicing 9.2 Storage Precautions 9.2.1 Precautions before storage 9-2 9.2.2 Recommended storage conditions Note 9.3 Repacking and Transportation 9.3.1 Repacking APPENDIX A INITIAL FACTORY SETTINGS A-2 A-3 Page Page Page B-3 B-4 B-5 Page Page Page Page Page Page Page Page Page Page Page Page E-2 E-3 E-4 E-5 E-6