Anritsu ML2430A Manual do Utilizador Página 1

ML2430A SERIESPOWER METEROPERATION MANUALP/N: 10585-00001REVISION: KPRINTED: MARCH. 2000COPYRIGHT 2000 ANRITSUANRITSU LTD (EMD)RUTHERFORD CLOSESTEVENA

1-4IDENTIFICATIONNUMBERThe ML2430A Series ID number is affixed to the rear panel (see Figure3-2). Please use the complete ID number when ordering part

configuration combines sensors, the combination is done inlinear units. If the result of the combination produces anegative linear value and the displ

*ESE? Return Event status register enable mask GPIB 488.2Syntax:*ESE?Remarks:Returned format: <unsigned character>When converted to an 8-bit bin

Remarks:Places a single ASCII character '1' on the GPIB output queue when theconditions for the *OPC command are met. An operation is comple

RelatedCommands:*RCL*SRE Setup service request enable registerGPIB 488.2Syntax:*SRE <val>val:8-bit maskRemarks:Sets the Service request enable r

*TST? Self Test GPIB 488.2Syntax:*TST?Remarks:Performs a self test and returns 'PASSED' or 'FAILED.'NOTE: This command will restar

same command as the one which changes to AUTO averaging, it will alsoupdate the USER averaging number.Example:AVG A, AUTO, 64This command will set the

AVGLL Auto low level averaging SENSORSyntax:AVGLL <s>,<mode>s:A or Bmode:OFFLOWMEDIUMHIGHRemarks:Sets the low level averaging window for t

Syntax:BAUTS <state>state:ENABLE or DISABLERemarks:Enable/disable the battery auto power shut off.NOTE: Although GPIB is not available under bat

NOTEIf the buffering enabled is set to OFF and '*OPC?' is used,the '*OPC?' will clear the output buffer of any previous re-sponse

val:.07 to 150%+31.55 to -1.76dBRemarks:If the Cal factor source is set to manual, this is the calibration factornumber used.Example:CFCAL A, %, 99Set

1-6SENSORSThe following sensors, sensor options, and sensor accessories are avail-able for use with the ML2430A Series Power Meters:Power Sensors (–70

Manual uses the CFCAL number itself.VGHz takes the frequency from the V/GHz input and uses it to look up thecalibration factor from the EEPROM in the

Remarks:Clears the cal factor table to one entry for 50 MHz at 100%, but does notclear the identity of the table. The cleared table is automatically s

binary data:Same data as that recieved by CFURDRemarks:Loads binary data into the cal factor table. This command will automaticallysave the data to th

This message can be manipulated to program a different table using theCFULD command.CFUSAV Cal factor table saveSENSORSyntax:CFUSAVRemarks:This comman

Remarks:Returns a number indicating the cal factor table, or combination of tables,being used by the selected sensor. Possible returned values are:0 =

CHCFG Channel input configuration CHANNELSyntax:CHCFG <c>,<config>c:1 or 2config:OFF,A, B, VA–B, B–AA/B, B/ARemarks:A, B, V = Sensor A, Se

units:W (Watts)DBM (dB)DBUV (dBmV)DBMV (dBmV)Remarks:DBM 0dB is equal to 1mW readout modeW = Watts readout modeV = Volts readout mode. This selection

RelatedCommands:GRDDT, SRCSPFRQ, SRCSTFRQ, SRCSTPWR, SRCSPPWRCURLK Link cursors in all graphic modesPROFILE SETUPSyntax:CURLK <state>state:ONOFF

RelatedCommands:CVSPF, CVSTF, CVSTVQuery:CVSPV? <s>ReturnedString:CVSPV <s>,<val>CVSTF V/GHz calibration factor start frequencySENSO

Remarks:Sets the mode of the LCD backlight when under Battery power.ON = back light is ON all the timeOFF = back light is OFF all the timeTIMED = back

SensorAccessoriesML2400A-20 1.5m SensorCableML2400A-21 0.3m SensorCableML2400A-22 3m Sensor CableML2400A-23 5m Sensor CableML2400A-24 10m Sensor Cable

ReturnedString:DCONT <val>DCONTD Set display contrast down by oneDISPLAYSyntax:DCONTDRemarks:Make the display lighter by lowering the contrast b

B = Sensor B onlyA&B = Sensors A and B displayed at the same timeOFF = Turns the peak meter display off.The peak meter display range covers 12 dB.

RelatedCommands:DUTYSQuery:DUTY? <s>ReturnedString:DUTY <s>,<duty cycle>DUTYS Duty cycle stateSENSORSyntax:DUTYS <s>,<state

ENTERR Entry Error beep SYSTEMSyntax:ENTERR <state>state:ON or OFFRemarks:Turns the user entry error warning beep On or Off.Query:ENTERR?Returne

NOTESThe GPIB command error and GPIB execution error arealways enclosed within exclamation marks (!). If no errorshave been produced since the last ER

e. Sensor OFFSETS are applied.f. Relative is applied if it is set to on before switching to FAST mode, and ifdisplay channel 1 is configured for a sin

FROFF Frequency/Offset Display SYSTEMSyntax:FROFF <state>state:ON or OFFRemarks:This command turns on the top line information text displaying t

GPRST Reset min/max graph PROFILE SETUPSyntax:GPRSTRemarks:When profile DATA HOLD mode is set to Min/Max points, this command isused to reset the min/

ReturnedString:GRCP <state>GRDATA Display Graph Cursor DataPROFILE SETUPSyntax:GRDATA <state>state:ON or OFFRemarks:Display the graph curs

GRDRQ <channel_number>,<Cursor_1_dB>,<Cur-sor_2_dB>,<Delta_power>,<Delta_time>[,<Average>]<Delta_power> and

Chapter 2Installation2-1INTRODUCTIONThis chapter provides information for the initial inspection and preparationfor use of the ML2430A Series Power Me

Syntax:GRPIX <mode>modeNORMMINMAXMINMAXAVGRemarks:Changes the type of graph displayed:NORM: Profiles the sensor readings vs. time from the trigg

Remarks:Sets the pre trigger percentage of the profile screen. The percentage ofthe data collection period that shows pretrigger infomation if the dis

RelatedCommands:GRSWPGRSWRQuery:GRSWS?ReturnedString:GRSWS <state>GRTMM Profile Min/Max tracking modePROFILE SETUPSyntax:GRTMM <mode>mode:

val:–150.0 to +250.0Remarks:It is not necessary to specify units as the displayed units are always as-sumed. Profile and Source Sweep modes always use

Remarks:Sets the profile trigger arming ON or OFF. If set to ON, the system firstchecks to see if the BNC sweep blanking input is TRUE before it start

Syntax:GTLVL <val>val:–30 to +20 dBmRemarks:When the system trigger in profile mode is set to either INTA or INTB (in-ternal sensor A or B) it w

GTTYP Set profile trigger type TRIGGERSyntax:GTTYP <type>type:RISEFALLRemarks:When the profile system trigger source is set to INTA or INTB (Int

val:Remarks:Sets the high limit. The HLIMS command turns the limits on and off. It isnot necessary to enter the units as the limit value is checked ag

Syntax:HOLD <state>state:ON or OFFRemarks:This command holds the present graph displayed on the screen and isavailable in all graph modes. In Pr

state:ON or OFFRemarks:This will link the trigger set-up between Profile mode and Readout modeso that the sample delay and the gate width will agree.

a fuse mounted inside the unit, on the main board. Agrounding terminal is provided on the rear panel toground the unit during operation from a DC supp

Remarks:The LLIMS command turns the limits on and off.RelatedCommands:LLIMQuery:LLIMS? <c>ReturnedString:LLIMS <c>,<state>MMRST Min

MNGD <number_of_elements>,<element_1>,<element_2>,<ele-ment_n>...<\n>The first number in the string is the number of ele

Syntax:MODLIM <state>value:TRUE or FALSERemarks:When set to TRUE, produces an SRQ and autodials the phone number(set with MODPH) when a channel

Syntax:MODRED <count>count:0 to 10Remarks:Sets the number of retrys after a failure to connect. The delay betweenretrys is set using MODDEL. See

Syntax:MXGDRemarks:Available in graph modes only. Outputs in ASCII form the max graph data.The format is as follows:MXGD <number_of_elements>,&l

port:1 or 2c:1 or 2Remarks:This command changes the channel represented by BNC output modesthat can take data from either channel 1 or 2, such as “Ana

Query:OBDST? <port>ReturnedString:OBDST <port>,<units>,<val>OBMD BNC output mode selectBNCSyntax:OBMD <port>,<mode>

port:1 or 2val:–5.00 to +5.00 VoltsRemarks:Sets up the stop value for the voltage output in analog output mode. At-tempting to set the start value to

OFFFIX Offset fixed value SENSORSyntax:OFFFIX <s>,<val>[units]s:A or Bval:–99.999 to +99.999units:dBRemarks:The value added to the sensor

ReturnedString:OFFTBL <s>,<val>OFFTBR Output an offset tableSENSORSyntax:OFFTBR <val>val:1 to 5Remarks:Outputs the selected offset t

FusesThe ML2430A Series Power Meter AC and DC inputlines are protected by internally mounted fuses. Thesefuses should only be changed by qualified ser

–10.234 becomes 10479, converted to hexadecimal FFFFD711. See theprogramming examples for more detail.OFFTYP Offset type to useSENSORSyntax:OFFTYP <

For example: FF FF D1 64 = –11932 As it is based on 1024 per dB, divideby 1024 to get the dB value (–11.652).OGD Output Graph DataDATA OUTPUTSyntax:OG

Syntax:ON <c>,<val>c:1 or 2val:1 to 1000Remarks:Readout and Power vs. Time modes only. This command returns the speci-fied number of readi

and measurement channel setups.When in Readout mode, the Channel 1 and Channel 2 values, and themax/min values if present, are printed below the heade

range 3 upper, range 3 lower, range 4 upper, range 4 lower, range 5 up-per, range 5 lower.REL Relative controlCHANNELSyntax:REL <c>,<mode>

Remarks:This function is used to toggle a sensor’s range hold off or on, to set a spe-cific range to be held, or to select AUTO ranging. RGH sent with

Remarks:Normally when the system is powered on the ML2430A Series returns tothe state it was in when it was powered off. This includes all the offset

SENSTL Set Sensor Settle Percentage SENSORSyntax:SENSTL <s>,<val>s:A or Bval:0.01 to 10%Remarks:Sets how long the system waits for the sig

Remarks:Determines the stop frequency when in frequency sweep mode.Query:SRCSPFRQ?ReturnedString:SRCSPFRQ <frequency>SRCSPPWR Source Sweep Stop

powervalue:powerRemarks:Determines the start power level of power sweep mode.Query:SRCSTPWR?ReturnedString:SRCSTPWR <power>START Initial startup

The required parts and tools are listed below:Tools Required: Small Phillips screw driverLarge Phillips screw driverSmall Phillips torque screw driver

B–A, '5' = A/B, '6' = B/A, '7' = EXT Volts.D = Channel 1 units: '0' = dBm, '1' = Watts, '2&apos

V = Sensor A zeroed status: '0' = Not zeroed, '1' = Zeroed.W = Sensor B Zeroed status: '0' = Not zeroed, '1' =

Remarks:Sets the passed store number to the setup contained in the binary datathat was extracted using the SYSRD command.RelatedCommands:SYSRDSYSLNM S

RelatedCommands:SYSLDTEXT User text commandSYSTEMSyntax:TEXT <text string>text string:Text string of up to 20 charactersRemarks:Defines the text

RelatedCommands:TR1, TR2, TR3, *TRG, Group Execute Trigger (GET), GT0, GT1, GT2TR1 Trigger immediateGPIB TRIGGERSyntax:TR1 <c>c:1 or 2Remarks:Tr

After a TR2 command the instrument returns to either TR0 (trigger hold) orTR3 (trigger free run) mode depending on what it was previously set to.Relat

c:1, 2 or 1&2val:0.0 to 1.0 secondsRemarks:The time the system waits after a trigger event has happenedbefore taking measurements when in READOUT

Remarks:If the Trigger source is set to INTA or INTB (internal A or B) the systemtriggers on a rising or falling power level edge. Use this command to

MANUAL (manual push button trigger)CONT (continuous)Remarks:This command is overridden by the TR0, TR1 and TR2 commands whenin READOUT or POWER vs. TI

type:RISEFALLRemarks:Sets the control type of the external trigger input used when the triggersource is set to EXTTTL in READOUT or POWER vs. TIME mod

Locate the support bracket on the four PM case pillars.Secure with 4 screws905-68 and 4 washers 900-345.(See max.torque settings page 2-4.)5.Locate th

6-11GPIB EMULATIONMODESThe ML2430 Anritsu power meter emulates the GPIB communication of otherpower meters. The emulation mode can be set through the

6-12ML4803AEMULATIONCOMMANDSThis section provides an alphabetical listing of the GPIB commands (mnemonics)used to program the Model ML2430A Series Pow

Output Requests There are three commands to request output from the ML4803A: OPW for areading, ODT for the cal factor, offset and reference values, an

CCA Clear the calfactor value to zero.CDJ Perform a CAL 0 dBm.Remarks:During the cal 0 dBm sequence, the CAL execution bit in the status byte isset. W

When selecting GPIB emulation modes, the instrument configures itself tothe preset conditions of the instrument to be emulated. For example, whenselec

MCR Clears the reference value at the specified memory loca-tion.Syntax:MCR<mem>mem:Memory location 1 to 30.Remarks:Clears the reference value a

Set the offset value at the specified memory location indBm.Syntax:MOF<mem><;><value>mem:Memory location 1 to 30.value:Offset value

OFF Set sensor offset valueSyntax:OFF<value>value:Offset value to add to the sensor reading.OI? Request identitySyntax:OI?Remarks:Response: <

OPW Request for channel reading.Remarks:Outputs measuring condition, measured data, and status. CR and LFcodes are automatically output and executed a

Output Code Contents FunctionARG1ARG2ARG3ARG4ARG5AUTOhighest sensitivity 1234lowest sensitivity 5RANGEAVE0AVE9AVE1AVE2AVE3AVE4OFFHOLD1 (1 second inter

ML2400A-03 RackMount InstallationThis section describes the assembly procedure for fitting two ML2430A PowerMeters (PM) into a instrument rack. The PM

As shown in the examples above, the dBm data is output in fixed rotation,while the WATT data is output in scientific notation. The exponent may beconv

Remarks:When SRQ0 is issued, the SRQ will no long turn off and on with eachreading. The SRQ is set back on by the SRQ1 command or by requestingdata.ST

6-13HP 436AEMULATIONCOMMANDSThis section provides an alphabetical listing of the commands (mnemon-ics) used to program the Model ML2430A Series Power

dB (rel)Remarks:Set to dB units in relative mode using the present relative reference value.C dB (ref)Remarks:Set to dB units in relative mode using t

I Trigger without settling.Remarks:Triggers a single reading which is added to the internal digital filter and theupdated filter power level is return

Output Format The output data format for the HP 436A emulation mode is shown below.Table 6-2 (next page) describes the HPIB output data format.6-98 ML

ML2430A OM 6-99GPIB OPERATION HP 436A EMULATION COMMANDSDefinition CharacterSTATUS ASCII DecimalMeasured value validWatts mode under rangeOver rangeUn

6-14HP 437B EMULATIONCOMMANDSThis section provides an alphabetical listing of the commands (mnemon-ics) used to program the Model ML2430A Series Power

*ESE? Return Event status register enable maskSyntax:*ESE?Remarks:Returned format: <unsigned character>When converted to an 8-bit binary number,

*RST Reset DeviceSyntax:*RSTRemarks:Resets the ML2430A Series to the default configuration (see Appendix A,Section A-3, or see the HP manual when in H

ToolsRequired: 1 Small Phillips screw driver1 Large Phillips screw driver1 Small Phillips torque screw driver 10cNm to 120cNm.1 Assembly drawing “ML24

Remarks:Performs a self test and returns 000.'RelatedCommands:STERR@1 Set SRE maskSyntax:@1<val>val:8-bit maskRemarks:Status Byte Structure

Remarks:Same as the *CLS command. Resets all of the GPIB status registers andclears the input queue.CT Clear the cal factor tableSyntax:CT<table_nu

DE display enableSyntax:DERemarks:Return the display to normal operation after the display has been set in DDmode.RelatedCommands:DD, DFDF Display dis

HP438A (Hewlett-Packard)ML4803 (Anritsu ML4803A Series)Remarks:Set the GPIB emulation to emulate other types of power meters. This com-mand is availab

FA Auto averageSyntax:FARemarks:Automatic Filter on. Allows the system to automatically select the filterused to reduce the jitter in the display.Rela

Example:To set the frequency of the input signal to 300 MHz:FR300MZGT Set group triggerSyntax:GT<mode>mode:012Remarks:0 = Ignore Group Execute T

terminator:%PCTENRemarks:The calibration factor compensates for mismatch losses and effective effi-ciency over the frequency range of the power sensor

LN Set linear unitsSyntax:LNRemarks:Changes the display to linear units (Watts).OC Set calibrator stateSyntax:OC<state>state:0 (OFF)1 (ON)Remark

state:0 (OFF)1 (ON)Remarks:For example: OF1 (Turn offsets ON).OI Return identification stringSyntax:OIRemarks:Returned format:<company name>,<

val:1 to 10Remarks:The ML2430A Series can store up to 10 instrument configurations for con-venient recall. The configuration parameters stored are the

WARRANTYThe ANRITSU product(s) listed on the title page is (are) warranted against defects in materials andworkmanship for one year from the date of s

The procedure for fitting a ML2430A to a HP34401A Multimeter is as fol-lows:1. Fit to the ML2430A Power Meter front brackets C37276, C37275 andrear br

RL Relative modeSyntax:RL<mode>mode:012Remarks:Relative mode permits any measurement result to be compared in dB orpercent to a reference value.

Remarks:Selects the cal factor table to be used.SM status messageSyntax:SMRemarks:Returns the status message in the format:AAaaBBCCccDDddEFGHIJKLMNOP&

Remarks:Stores the present configuration to the selected register.Example:To store the current instrument configuration in register 2:ST2ENRelatedComm

Remarks:Triggers a new series of readings; enough to update the internal digital fil-ter for a noise free reading at the current power level. The valu

6-15HP 438AEMULATIONCOMMANDSThis section provides an alphabetical listing of the GPIB commands (mne-monics) used to program the Model ML2430A Series P

Remarks:Display the Input A reading minus the Input B reading.AP Set single sensor A displaySyntax:APRemarks:Set the display to output Input A reading

terminator:%PCTENRemarks:Same as the ML24XXA (native) CFADJ command. Sets a calibration factorto be used when performing a 0 dBm calibration.Examples:

RelatedCommands:DDDR Set GPIB addressSyntax:DR<val>val:1 to 30Remarks:Changes the device address when operating in HP emulation mode. Thepower m

Remarks:Hold filter sets the filter mode to Manual from Auto, but retains the auto fil-ter setting. This function is the same as the AVGM command.Rela

Remarks:The calibration factor compensates for mismatch losses and effective effi-ciency over the frequency range of the power sensor.Examples:KB99.9%

2-7BATTERYCHARGING,REMOVAL ANDREPLACEMENTThe optional ML2430A Series Power Meter battery is a 12 Volt, 3000mA-h nickel-metal hydride (Ni-MH) multi-cel

LN Set linear unitsSyntax:LNRemarks:Changes the display to linear units (Watts).OC Set calibrator stateSyntax:OC<state>state:0 (OFF)1 (ON)Remark

Reference Oscillator = OffActive entry channel = AMeasurement units = WattsREL mode = offMeasurement parameters (set for Sensor A and Sensor B):Cal Fa

mode:012Remarks:Relative mode permits any measurement result to be compared in dB orpercent to a reference value. Relative mode can be enabled using t

CC: sensor A rangecc: sensor B rangeDD: sensor A filterdd: sensor B filterE: measurement unitsF: active entry channelG: OSC statusH: REL mode statusI:

Remarks:Triggers a single reading which is added to the internal digital filter and theupdated filter power level is returned on the GPIB. After a TR1

6-16PROGRAMMINGEXAMPLESThe following programming examples are provided as a general guideline on howto program the ML2430A Series Power Meters using G

Get Graph DataFunction GetGraphData ()‘function assumes that you have the graph display‘setup and that there is a global array called‘Graph_Data().‘ma

StatusRegisterControlThis function demonstrates how to use the Status Registers to provide synchroni-zation.Uses the TR2 (trigger with settling) comma

488.2General Send/Receive SystemThis function uses the status registers to synchronize the GPIB commands andreturn data if a query command was used. T

4882SendReceive= Execution_ErrorElseIf (Val(ESB) And DEVICE_ERR_bit) Then4882SendReceive = Device_dependent_ErrorEnd IfEnd Function6-132 ML2430A OMPRO

For optimal battery life, the battery should be fully discharged before re-charging. Repeated partial charge/discharge cycles can result in a loss ofb

Binary OutputMessage DecodingThe following program example may be used to decode the three types of binaryoutput messages. The commands that reference

/* Read and cast the data */while (count < length){real_data1[loop++] = ((float)(*bin_value++))/1024.0;count += 4;}real1_entries = loop;}else if (d

else if (decode_type == CAL_FACTOR_BINARY_DATA){/* Decode header *//* Read length of binary data*/ch_val[0] = buffer[6];ch_val[1] = buffer[7];ch_val[2

Appendix ASpecificationsA-1INTRODUCTIONThis appendix provides system specifications for the ML2430A SeriesPower Meters along with listings of system d

A-2 ML2430A OMSYSTEM SPECIFICATIONS APPENDIX AInstrument Ac-curacy:< 0.5 %Zero Set andDrift:< 0.5 % MA2420A; < 0.5 % MA2470A Series andMA2440

ML2430A OM A-3APPENDIX A SYSTEM SPECIFICATIONSCursors:Two manually adjustable cursors with power, delta cur-sor power, between cursor power average, a

A-4 ML2430AOMSYSTEMSPECIFICATIONS APPENDIXACal Factor Volt-ageInput(BNC):Operating Modes:Voltage:Display voltage reading on selected channel.Voltage p

APPENDIX A SYSTEM SPECIFICATIONSDisplay:Flat panel monochrome LCD graphic with backlight.Operating Tem-peratureRange:0 to 50° C (32 to 122° F)StorageT

A-3SYSTEM DEFAULTSThe following default parameters are loaded whenever preset is selectedfrom the front panel or through GPIB.A-6 ML2430A OMSYSTEM DEF

ML2430A OM A-7APPENDIX A SYSTEM DEFAULTSfrequencies 0 Hzoffset values 0 dBSENSOR - duty cycleduty cycle state offduty cycle 100%CHANNEL - setupinput c

2-8STORAGE ANDSHIPMENTThe following paragraphs describe preparing the power meter for storage andshipment.Preparation forStoragePreparing the power me

A-8 ML2430A OMSYSTEM DEFAULTS APPENDIX ASYSTEM - setup = profileTRIGGER - setupsource continuoussample delay 1 mssample gate width 20 mssource = conti

ML2430A OM A-9APPENDIX A SYSTEM DEFAULTSSYSTEM - displaybattery backlight ondisplay contrast 5peak meter display offfrequency/offset display offGPIB u

A-10 ML2430A OMSYSTEM DEFAULTS APPENDIX Aoutput 2 onlymode = RF blankingchannel 1output TTL during zero highinput 1blanking active TTL level highSYSTE

A-4SYSTEM ERRORMESSAGESThis section details some of the front panel error messages that may ap-pear. In most cases, the error condition can be easily

Error Message MeaningSENSOR A not fittedREADING SENSOR A dataSensor A is required for the currentmeasurement, but is not fitted.as per messageSENSOR B

Appendix BGPIB Quick ReferenceB-1INTRODUCTIONThis appendix contains quick reference tables for all supported com-mands. Native mode commands are sorte

Table B-3. Channel Functional Group CommandsCommand Function PageCHCFG(?) Channel input configuration 6-28CHRES(?) Set channel decimal point resolutio

Table B-6. GPIB 488.2 Functional Group CommandsCommand Function Page*CLS Clear GPIB status bytes 6-12*ESE Event Status Byte enable 6-7, 6-12,6-100*ESE

Table B-9. Profile Setup Functional Group CommandsCommand Function PageCURLK(?) Link cursors in profile mode 6-30DTRGD(?) Display Trigger Delay 6-34GR

Command Function PageOFFCLR Clear an offset table 6-60OFFFIX(?) Offset fixed value 6-61OFFTBL(?) Select an offset table 6-61OFFTBR Output an offset ta

STORAGE AND SHIPMENT INSTALLATION2-12/2-12 ML2430AUNITED STATESANRITSU SALES COMPANY685 Jarvis DriveMorgan Hill, CA 95037-2809Telephone: (408) 776-830

SRCSTAT Source sweep status request 6-71SYSLNM Saved set naming 6-75TEXT(?) User text command 6-76TEXTS(?) User text display command 6-76Table B-12. T

Query Returned String PageDBLTIM? DBLTIM <VAL> 6-32DCONT? DCONT <VAL> 6-32DISP? DISP <STATE> 6-33DPEAK? DPEAK <MODE> 6-33DTRGD

Query Returned String PageOBDSP? <PORT> OBDSP <PORT>,<UNITS>,<VAL> 6-45OBDST? <PORT> OBDST <PORT>,<UNITS>,&l

B-3ML4803A QUICKREFERENCEThe following tables reference ML4803A emulation mode commands.Table B-14. ML4803A Emulation Mode CommandsCommand Function Pa

B-4HP 436A QUICKREFERENCEThe following table references HP 436A emulation mode commands.Table B-15. HP 436A Emulation Mode CommandsCommand Function Pa

B-5HP 437B QUICKREFERENCEThe following table references HP 437B emulation mode commands.Table B-16. HP 437B Emulation CommandsCommand Function Page*CL

Command Function PageGT Set group trigger 6-108,6-121ID Return identification string 6-108IDN? HP437 identity request 6-108KB Calibration factor 6-108

Command Function PageTR1 Trigger immediate 6-77,6-115,6-126TR2 Trigger with a settling delay 6-77,6-115,6-127TR3 Trigger free run 6-78,6-116,6-127ZE Z

B-6HP 438A QUICKREFERENCEThe following table references HP 438A emulation mode commands.Table B-17. HP 438A Emulation CommandsCommand Function Page?ID

Command Function PageOI Identification 6-64, 6-97,6-111,6-123OS Set offset value 6-111,6-123PR Preset the unit 6-111,6-123RA Auto Range 6-111,6-124RC

Chapter 3Connections3-1INTRODUCTIONThis chapter describes physical connections to the power meter on boththe front and rear panels.3-2FRONT PANELCONNE

B-7HP-IB SUPPORTThe following tables list HP-IB commands for the HP 437B and HP 438Apower meters, and which commands are supported in the AnritsuML243

Mnemonic Action Supported? RestrictionsLM1 Limit check on Yes Both high and low on as HP 437BLN Units to Watts Yes NoneLP Learn mode 1 No Not supporte

HP 438A CommandsMnemonic Action Supported? RestrictionsAD Config to A-B Yes NoneAE Select sensor A Yes NoneAP Config to A Yes NoneAR Config A/B Yes No

Mnemonic Action Supported? RestrictionsRV Read SRE Yes NoneSM Status ouput Yes As much as has meaning for ML2430A.Set to 0 if not usedST Store setup Y

Appendix CMenu MapsC-1INTRODUCTIONThe ML2430A Series Power Meter is driven by five main menus; Sensor, Chan-nel, Trigger, System, and Cal/Zero, each a

[CFSRC, CFVAL] SOURCEFrequency | manual | vghzSETUP } if source = VGHz only[CVSTF] START Freq10kHz to 122GHz[CVSPF] STOP Freq10kHz to 122GHz[CVSTV] ST

10kHz to 122GHzdetermined by fitted sensorFACTOR150% to 0.07%–1.76dB to 31.55dBDONEDELETE[CFUSAV] SAVE to sensorNOYES[CFUCT] CLEAR tableNOYES[CFUPT] P

A|BAveraging MODEAuto | moving | repeat | off[AVG] Averaging NUMBER } if mode = MOVING or REPEAT1to512[AVGLL] Auto LOW LEVEL averagingOff \ low \ medi

upENTRY1to200[OFFCLR] CLEAR selected table } if type = TABLEDuty cycleSENSOR } not in ML2437AA|B[DUTYS] Duty cycle STATEOn | off[DUTY] DUTY cycle100%

C-3CHANNEL MENUThe Channel menu controls the operation of a display channel. There are twodisplay channels, Channel 1 and Channel 2. Channel 1 appears

An optional rear panel Calibrator connector is offered as an alternative (see Fig-ure 3-2). If the rear panel connector option is installed, the front

[HLIMS] HIGH StateOn | off[LLIMS] LOW StateOn | off[FHOLD] Fail indicator HOLDOn | off[FBEEP] Fail BEEP controlOn | offML2430A OM C-7APPENDIX C CHANNE

C-4TRIGGER MENUThe Trigger menus are always available in PROFILE operation mode, as selectedfrom the System menu. In READOUT and POWER vs. TIME modes,

C-5SYSTEM MENUThe System menus control the operating modes, display visibility, sound, rearpanel functions, and battery state of the ML2430A Series Po

PwrVsTime } if system setup mode = Power vs. Time[GRMD] CHANNEL1|2[GRPIX] DATA HOLD representationNormal | average | min&max | min | max[GRDDT] Da

[GRDATA, GRDRQ] READOUT[GPRST] CLEAR[CURLK] LINK CURSOR[HOLD] Graph HOLD[GRAUTO] AUTO scaleDisplay[DBLGHT] Battery BACKLIGHTOn | timed | off[DCONTD, D

Battery[BAUTS] AUTO power off } if smart battery detectedOn | off[BAUTT] Auto power off TIME } if smart battery detected10 to 240 minutesSTATUS } if s

[MODPWR] POWER on/offTrue | falseBNC setupPORTOutput 1, output 2, input 1, input 2[OBMD] Operating MODE only if port = output 1 or output 2o/p 1off |

if mode = RF BLANKING and port = output 2[OBCH] CHANNEL1|2[OBZL] Output TTL during zeroingLow | highif port = input 1[IBBLP] Blanking active TTL LEVEL

C-6CAL/ZERO MENUThe Cal/Zero menu establishes the 0.0 dBm reference calibration and zeroing ofthe sensors. Refer to Chapter 5 for specific procedures.

AAC . . . . . . . . . . . . . . . . . . . . . 2-1, 3-3, 4-2accessoriespower meter . . . . . . . . . . . . . . . .

ML2430A OM 3-3/3-4OPERATION REAR PANEL CONNECTORSFigure 3-2. ML2430A Series Rear PanelGPIB/ IEEE488 ConnectorStandard General Purpose Inter-face Bus c

controls . . . . . . . . . . . . . . . . . . 4-1 - 4-2operation . . . . . . . . . . . . . . . . . . . . 4-1functio

Rrack mount . . . . . . . . . . . . . . . . . . 1-2 - 2-7RAM . . . . . . . . . . . . . . . . . . . . . . . . 4

Chapter 4Front Panel Operation4-1INTRODUCTIONThe ML2430A Series Power Meter is controlled from the front panel using thefive main menu keys; Sensor, C

Safety SymbolsTo prevent the risk of personal injury or loss related to equipment malfunc-tion, ANRITSU Company uses the following symbols to indicate

4-2 ML2430A OMFRONT PANEL CONTROLS OPERATIONFigure 4-1. ML2430A Series Front Panel ControlsNumeric KeypadProvides the means for enteringnumeric data i

4-3POWER-ONPROCEDUREAt power-on, the power meter performs a brief power-on self test (POST).After the POST, the instrument loads the last used configu

If any error, other than a DSP error, is encountered, the text:“Press ANY key to continue”will be displayed at the bottom of the screen. If only warni

4-4SENSOR MENUThe Sensor menu has controls for sensor data processing.NOTEWhen editing an entry in a menu, pressing theCLRkeyclears the digits.If in a

HOLD[RGH]Allows the operating range of the selected sensor to be set to thedesired range. Select a Range Hold value of 1 to 5, or Auto. Whenin Auto, t

For greater accuracy, calibration factors are interpolated for settingsthat are between the calibration factor data provided in the sensorEEPROM. For

FactorySelects the Factory calibration factor table. Pressing Factory andthe +/- key on the numeric keypad allows selection of a user-defined table in

SETUP[CVSTFCVSPFCVSTVCVSPV]Sets up the Start and Stop frequencies and voltages when Sourceis set to V/GHz. This tells the ML2430A how to determine the

REPEAT averaging also allows the user to manually select theamount of averaging regardless of the signal level, however the dis-play is updated only w

RESETSweep average reset. If the graph sweep averaging state is ON,this key resets the data points and restarts the sweep to sweepmode.CURSOR[GRSWR]Be

SAFETY-2 ML2430A OMWhen supplying AC power to this equipment, connect the accessory 3-pinpower cord to a 3-pin grounded power outlet. If a grounded 3-

TABLE[OFFTBLOFFTBROFFTBUOFFVAL]Select the offset table number (1-5) when Offset TYPE is set to Ta-ble. When a table is selected, additional soft keys

4-5CHANNEL MENUThe Channel menu controls the operation of a display channel. There are twodisplay channels, Channel 1 and Channel 2. Channel 1 appears

RESET[MMRST]This function resets the Min/Max (when ON) for the channelselected.Rel 1[REL]After the relative power level is set by the operator, the Re

have been set for –10 dBm and the display units are subsequentlychanged from dBm to Watts, the system still checks for the readingto rise above –10, e

4-6TRIGGER MENUThe Trigger function in the ML2430A allows the user to define under what condi-tions measurements are taken, and the time period they a

The trigger icons appear as shown in Figure 4-2.Only when a channel input configuration includes a sensor with a measurementmode that requires an icon

DELAY[TRGDLYGTDLY]In Profile mode, DELAY sets the time delay (after the display triggerdelay) to when the system starts to take and display readings,

1. Connect to the rear panel digital input.2. Select Trigger|Setup|ARMING|Blanking ON.3. Set the polarity of the blanking (System menu)Example power m

Figure 4-4 shows a typical trigger timing diagram. Note that the displaytrigger delay is only present when in Profile operation mode, and helps insett

4-7SYSTEM MENUThe System menus control the operating modes, display visibility, sound, rearpanel functions, and battery state of the ML2430A Series Po

With LINK readout/profile trigger set to ON, switching to Readoutmode uses the same trigger conditions, but allows the full dynamicrange of the meter

DATA HOLD[GRPIX]This selects how the graph is displayed on the screen. Select fromNORMAL, Min&Max, Min, or Max.NOTEIf either Min&Max, Min, or

If the source used does not provide a blanking output, the blanking signal may bedisabled as follows: select System|Rear Panel|BNC. Select PORT until

STOP[SRCSPFRQSRCSPPWR]Sweep stop frequency (MHz or GHz) or power (dBm)NOTEWhen the power meter is communicating with a signalsource/generator over the

1 cursor 1 reading2 cursor 2 readingD P Power difference between cursor 1 and cursor 2D t Time difference between cursor 1 and cursor 2AV Between curs

2 cursor 2 readingD P Power difference between cursor 1 and cursor 2X1 X axis at cursor 1X2 X axis at cursor 2Data hold = MIN (or MAX) :1 cursor 1 min

ContrastDOWN[DCONTDDCONT]Reduces the display contrast. Adjust to suit ambient conditions.ContrastUP[DCONTUDCONT]Increases the display contrast. Adjust

Print[PRINT]This selection prints the screen and various operational settings through the rearpanel printer port.BatteryControls battery setup when th

NOTEImmediately after power-on, the “estimated operating timeremaining” displayed may not be genuine, as the batteryrequires a few minutes to calculat

Source IF allows the power meter to communicate with an Anritsu68/69000-series synthesizer when the operation mode is set toSource Sweep.BAUD[RSBAUD]S

Table of ContentsChapter 1 - General Information1-1 Scope of This Manual . . . . . . . . . . . . . . . . . . . . . . . . . .

POWER [MODPWR] – If this is set, and the power cycles on themeter, then the number specified in the “phone number” field will bedialed. When a connect

ACMod output (port 1 only) is a TTL signal synchronized to the in-ternal chopper (when used) of the signal channel. This signal canbe used for synchro

Graphics This menu presents additional graphic display controls:CONNECT[GRCP]This control is normally ON and causes the data between samplesto be inte

RF ON/OFF[RFCAL]Turns the RF calibrator ON or OFF.Ext V[VZERO]Zeros the rear panel multi-purpose BNC connector used for Volts per GHz con-nection (Ana

Chapter 5Procedures5-1INTRODUCTIONThis chapter presents some common procedures for use with theML2430A Series Power Meter. These procedures refer to t

To zero the sensor without calibration, press the Cal/Zero front panel keyand the Zero soft key, then select the appropriate sensor.Note that if only

Any error conditions encountered during calibration, for example the pres-ence of extraneous noise or RF signals, will result in an error message onth

5-7PRINTERCONNECTIONSee Chapter 3, Connectors, for the location of the parallel port connector on therear panel. Connect a parallel printer cable from

5-9SERIAL REMOTEOPERATIONThe ML2430A Series Power Meter can be operated remotely through the rearpanel serial connector (See Chapter 3, Connectors, fo

Requested data is returned in the same format as with GPIB, but with a preced-ing 'R' and a terminating new line character. SRQs are availab

Chapter 5 - Procedures5-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15-2 Power Mea

Connected Device Character SequenceComputer connected directly "+++at\r\rS\n"Modem offline from phone networkSequence will be seen if remote

Modem Compatibility andCommandsThe ML2430A Series Power Meter firmware supports Hayes-compatible mo-dems. The commands used are as follows:Command Def

4. To set a limit for channel 1 and to have the power meter autodial a remotecomputer when this limit fails, send the following sequence:LLIM 1,-12DBM

a. Read the status register using the equivalent of a GPIB serial poll. Send themessage:!SPLNote: There is NO terminator to this message.The power met

To view the time profile of a signal, enter the PROFILE mode viaSYSTEM|SETUP|MODE (toggles through READOUT, PROFILE and POWER vs.TIME ). Parameters ne

NOTEWith a CONTINUOUS trigger such as this, there will mostlikely not be specific points of interest, so the movementof the cursors is rather arbitrar

cussed more fully in the Triggered Measurements sectionbelow.Range Hold may be selected (see page 4-6) to limit dy-namic range and prevent small range

The unique method of range changing applied in thismode means that the change between range 1 and 2 iseffected in less than 2 ms. In most cases it is

NOTEFor smaller values of display trigger delay, it is possiblethat the display will cover time intervals (on the left of thedisplay) for which there

(a) CONNECT points. With this ON (default) the data points are connected withvectors to resemble a real time trace. When OFF, the data points are disp

Appendix A - SpecificationsA-1 Introduction A-1A-2 System Specifications . . . . . . . . . . . . . . . . . . . . . . . . . .

Frequency SweepModeWhen the sensor/cal factor source is set to V/GHz in Source Sweep mode, thestart and stop voltages are assumed to be 0 and 10V, and

System|Source Sweep|Data Hold can be used to select the way in which data isplotted. Using Min/Max variation (both minimum and maximum) can be shown o

The data can be displayed as a maximum value only, a minimum value only, max-imum and minimum values, the average of all the readings during the time

Cal factor tables are accessed through the Sensor|CalFactor|USE TABLE frontpanel menus (Chapter 4), or through GPIB commands (Chapter 6).Example Proce

5-15OPTIMIZINGREADINGSThis section presents information on how to get the fastest readings from theML2430A Series power meter when operating under GPI

Send(0, 13, “O 1”, 3L, NLend);Receive(0, 13, buffer[i], 20, STOPend);}Settling (%) Power Level (dBm) Readings/Second0.1 0 1600.1 –30 16010.0 –30 160Th

UsingBufferedRequestsUsing the buffered Output channel ON command (page 6-64), even faster meas-urement speeds can be achieved. By using the ON comman

AN EXAMPLEPROGRAM IN C#include <stdio.h>/* include the NI 488.2 GPIB include file */#include “DECL.H”/* LINK with MCIB.LIB *//* Compiled with Bo

Chapter 6GPIB Operation6-1INTRODUCTIONThis chapter provides alphabetically-ordered listings and descriptions of allML2430A Series GPIB programming com

HP and ML4803 emulation commands on the other hand, do not have to have aspace between the command header and the parameter, or commas betweenthe para

Chapter 1General Information1-1SCOPE OF THISMANUALThis manual provides installation and operation information for the ModelML2430A Series of ANRITSU P

All of the Status enable type commands (*SRE for example)Stored numbers (i.e., 0, 1, 2, 3, 4, 5)Offset table numbers (i.e., 1, 2, 3, 4, 5, 6...)GPIB a

“1/15/98"”Save “”cal_file"" now."'Save “cal_file” now.'<Arbitrary ASCII> This notation represents undelimited 7-bi

6-5GPIB PC CARDSETUPThe following GPIB driver configuration set up is recommended for reliable GPIBcommunication with the ML2430A Series power meter.

6-6USING 488.1 GPIBIEEE 488.1 level commands are in the form of data byte codes with the attention(ATN) line set. A separate function is normally prov

Typical device library calls are 488.1 'ibrsp' and 488.2 'ReadStatusByte'.6-7USING 488.2 GPIBThe IEEE 488.1 GPIB standard was upda

OPCOperation Complete. When a program message that includes the *OPC com-mand has been completed, and the GPIB interface is idle, with any responsesre

2. Request data from display channel 1 by sending:O1The SRQ will be set with the new reading which will now be in the output bufferready to be read. T

ESB If any of the event register bits are set and the corresponding event status enablebits are set the ESB bit in the status byte will be set. This b

SENSOR The SENSOR group commands select the data acquisition controls for the se-lected sensor.SYSTEM The SYSTEM group commands control the overall fu

6-10ML24XXA NATIVECOMMANDSThis section provides an alphabetical listing of the GPIB commands (mnemonics)used to program the Model ML2430A Series Power