Making Ratio Measurements | HP Saw E4419B guide

Power Meter Operation

Making Ratio Measurements

Making Ratio Measurements

Dual channel ratio measurements can be made on the currently selected

window by pressing SetupMeas , Input Select and selecting A/B or B/A .

The power meter always carries out “Maths” calculations in Watts. The power meter displays the ratio of the channels power values in either dB or %. When the measurement result is displayed in % a preﬁx multiplier may be shown. The power value of each channel includes offsets, calibration factors and duty cycle in addition to measured power. The ﬁlter, range, offset and calibration factor are set individually for each channel.

Ratio measurements can be displayed relative to a stored reference. In relative mode readings are displayed in either dB or %. Refer to “Making Relative Measurements”, on page 2-37 for further information.

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HP Saw E4419B manual Making Ratio Measurements

Contents

User’s Guide HP Part no. E4419-90006 DecemberPage Legal Information WarrantyCertiﬁcation Limitation of Warranty Exclusive Remedies Personal Safety Considerations Equipment Operation General Safety Considerations Markings Statement of Compliance Installation InstructionsIEC 1010-1 Compliance User Environment Australian EMC Regulations Regulatory InformationSound Emission Herstellerbescheinigung Declaration of Conformity List of Related Publications HP E4418B/E4419B Programming Guide is shipped as standard Available Accessories HP E4419B Options About this Guide Table of Contents Page HP-IB Page List of Figures Contents-6 HP E4419B User’s Guide List of Tables Contents-8 HP E4419B User’s Guide Getting Started Introduction Connect the power sensors Turning On the Power MeterConnect the power cord and turn on the power meter Set the display contrast if required Front Panel at a Glance Hardkeys relating to the display layout Dedicated Channel hardkeys with softkey menus System/Inputs hardkey with softkey menuDedicated Window hardkeys with softkey menus Channel Inputs Menu related hardkeys Power REF OutputArrow hardkeys Softkeys Display Layout Cal Reference Upper Lower Number Display Line CFxxx.x% Xxx.xyHza Nn,a HP E4419B User’s Guide Selecting Your Display Layout Display Tutorial HP E4419B User’s Guide Wait Symbol Window SymbolsConﬁrmation Window N Entry Window Numeric or Alphanumeric Entry Window Rear Panel at a Glance Serial Label Ground ConnectorRmt I/O Adjusting the Carrying Handle Rack Mounting the Power Meter Rack Mounting the Power Meter Power Meter Operation Power Meter Operation General Information Battery Operation OptionBattery Status Running Time Charging Times Backlight Battery Removal/Replacement Battery Removal/Replacement When to Zero? Zeroing and Calibrating the Power MeterZeroing the Power Meter Zero/Cal Lockout Calibrating the Power Meter Calibration Procedure Using HP E-Series Power Sensors Example Calibration Procedure using HP 8480 Series Power SensorsV8486A and W8486A sensors Models Zeroing and Calibrating the Power Meter Sensor Connection Requirements Model Zeroing and Calibrating Using TTL Inputs TTL Inputs Control Logic Operation TTL Input Timing Diagram Timing of zero/cal inputs for conditions 01 TTL Inputs Timing Diagram Timing of zero/cal inputs for condition Making Measurements with the HP E-Series Power Sensors Procedure Freq . Use Making Measurements with the HP 8480 Series Power Sensors Zero a Cal Cal Fac . Use Making Measurements using Sensor Calibration Tables Selecting a Sensor Calibration Table Making the Measurement Sensor Tbls Screen Editing Sensor Calibration Tables Edit Cal Screen Making Measurements using Sensor Calibration Tables You can only edit the table name you cannot delete it Default R8486A HP 8487A Making Measurements using Frequency Dependent Offset Tables Selecting a Frequency Dependent Offset Table Offset Tbls Screen Editing Frequency Dependent Offset Tables Edit Screen You delete the frequency the equivalent offset is also Setting the Units of Measurement Selecting Units of Measurement from the Softkeys Making Relative Measurements Setting the Resolution Setting Channel Offsets Setting OffsetsSetting Display Offsets Effect of Offsets on a Channel Measurement Setting Averaging 10 Averaged Readings Step Detection Measuring Pulsed Signals 11 Pulsed Signal To set the duty cycle Press Setting Measurement Limits Setting Channel Limits Setting Window Limits 12 Limits Checking Application Range of Values for Window Limits Max Min Default Units 14 Remote I/O TTL Outputs Checking for Limit Failures 15 Pass/Fail Limit Indicators Channel Measurements Making Difference Measurements Making Ratio Measurements Selecting a Digital or Analog Display 16 Digital Display Display Format Selecting a Digital or Analog Display Setting the Range Conﬁguring the Remote Interface HP-IB Address RS232/422 Connector RS232/RS422 Setting the RS232/422 Parameters Remote Interface Overview 20 Interface Overview Examples Programming Language Selection 21 Test Setup for Recording Swept Measurements Recorder Outputs Leveling a Source Output Saving and Recalling Power Meter Conﬁgurations 22 Save/Recall Screen How Measurements are Calculated Window Functions Presetting the Power Meter Preset Conditions Offset is set to 0.000 dB Is set to Off HP E4419B User’s Guide Power On Self Test Self Test Front Panel Selection of Self Tests Instrument Self Test Conﬁdence Check Remote Testing Test Descriptions Keyboard Front Panel only Option 001 BatteryCalibrator Display Bitmap Display Front Panel only Operator Maintenance Replacing the Power Line Fuse Contacting Hewlett-Packard Before calling Hewlett-Packard Check the Basics Instrument serial numbers OPT Asia Paciﬁc Sales and Service OfﬁcesJapan Canada United Kingdom 01344 366 South Africa 011 806Switzerland 01 735 Latin America Returning Your Power Meter for Service Package the Power Meter For Shipment HP E4419B User’s Guide Menu Reference Menu Reference Front Panel Menu Maps DBm/W Menu Frequency/Cal Fac Menu Meas Setup Menu Rel/Offset Menu Save/Recall Menu System Inputs Menu 1 Auto System Inputs Menu 2 000W System Inputs Menu 3 Scpi System Inputs Menu 4 Zero/Cal Menu Front Panel Menu Reference Freq Cal Fac Cal Fac Front Panel Menu Reference Meas/Setup Menu Meter Dgtl Anlg TTL Output Front Panel Menu Reference More, Preset/Local, Prev Keys Rel Save HP-IB RS422 RTS/CTS Echo Freq Dep Offset Linearity ATyp DTyp and B Linearity ATyp DTyp Duty Cycle Commonly used for troubleshooting. The default is Off Press this softkey to return to the System/Inputs menu Press this softkey to run a test on the internal cooling fan Serial Interface Set Contrast Backlight On Zero B Off Diagrammatical Hardkeys Is implemented in the selected window HP E4419B User’s Guide Error Messages Error Annunciator Position Error List then Clear Errors Error Messages Exponent too large Undeﬁned headerInvalid character in number Too many digits String data not allowed Character data not allowedInvalid string data Invalid block data Settings conﬂictDTR/DSR not available on RS422 Parameter errorFrequency list must be in ascending orderSettings conﬂict Trigger deadlock Data corrupt or stalePlease zero and calibrate Channel B Data questionableCAL Error ChAData corrupt or stalePlease zero and calibrate Channel a Data corrupt or stalePlease zero Channel a Data questionableUpper window log error Data questionableCAL Error ChBData questionableLower window log error Data questionableZERO Error ChA System errorDetector Eeprom Read Completed OK but System errorCh B Dty Cyc may impair accuracy with ECPSystem errorDetector Eeprom Read Failed critical data not System errorDetector Eeprom Read Failed unknown Self-test FailedOption 001 Battery requires replacement Self-test FailedMeasurement Channel a FaultSelf-test FailedMeasurement Channel B Fault Self-test FailedRAM Battery Fault Framing error in program Self-test FailedSerial Interface FaultParity error in program Queue overﬂow Speciﬁcations Speciﬁcations Power Meter Speciﬁcations Meter Accuracy Zero Set Speciﬁcations Power SensorInstrumentation Power Output Power ReferenceAccuracy Measurement Speed Power Meter Supplemental CharacteristicsConnector Frequency Noise Multiplier Number Zero Drift of SensorsMeasurement Noise Averages Power Sensor Speciﬁcations Zero Drift Measurement Noise Settling Time For HP 8480 series power sensorsNormal Mode X2 Mode Settling Time Number For HP E-series power sensors Normal Mode X2 Mode Maximum dBm Zero Drift Power Sensor SpeciﬁcationsDeﬁnitions Zero Set Measurement Noise Battery Option 001 Operational Characteristics General Characteristics Rear Panel Connectors Operating Environment Environmental CharacteristicsGeneral Conditions Storage Conditions Safety DimensionsWeight General Non-Volatile Memory BatteryHP-IB Compatibility HP E4419B User’s Guide Index Index-2 HP E4419B User’s Guide HP E4419B User’s Guide Index-3 Index-4 HP E4419B User’s Guide HP E4419B User’s Guide Index-5 Index-6 HP E4419B User’s Guide HP E4419B User’s Guide Index-7 Index-8 HP E4419B User’s Guide