Boonton 4240 RF Power Meter Manuel d'utilisateur Page 1

INSTRUCTION MANUAL 4240 SERIES RF POWER METER REV DATE 01/19/2011 MANUAL P/N 98406700A 06799A CD P/N 984

Boonton 4240 Series RF Power Meter This page intentionally left blank. Contents x

Boonton 4240 Series RF Power Meter 5-1. SCPI COMMAND SUMMARY (continued) SENSe[1|2]:CORRection:CA<numeric value> = -3.00 to 3.00 et/return dut

Boonton 4240 Series RF Power Meter Table 5-1. SCPI COMMAND SUMMARY (continued) STATus:QUEStionable:CALibration:EVENt? Ret urn value

Boonton 4240 Series RF Power Meter 5.5.16 4230 Emulation GPIB Commands Table 5-2. 4230 EMULATION GPIB COMMANDS Code Description Comments CP

Boonton 4240 Series RF Power Meter Table 5-2. 4230 EMULATION GPIB COMMANDS (continued) Code Description Comments Channels ngle channel al, fr

Boonton 4240 Series RF Power Meter 5.5.17 HP 437B Em ulation GPIB Commands Table 5-3. HP 437B EMULATION GPIB COMMANDS UPPORTED RG # 100) NOT

Boonton 4240 Series RF Power Meter Table 5-3. HP 437B EMULATION GPIB COMMANDS Code D s KZ ction function NOT SUPPORTED llator off n t

Boonton 4240 Series RF Power Meter Table 5-3. HP 437B EMULATION GPIB COMMANDS Code Description Comments SM Status message NOT SUPPOR

Boonton 4240 Series RF Power Meter 5.5.1 ands 8 HP 438A Emulation GPIB CommTable 5-4. HP 438A EMULATION GPIB COMMANDS Comments D Measure A-

Boonton 4240 Series RF Power Meter LP1 Set learn mode #1 NOT SUPPORTED Table 5-4. HP 438A EMULATION GPIB COMMANDS ode Description Comm

Boonton 4240 Series RF Power Meter 6. Application Notes in this section include pulse measurement fundamentals, automatic measurement rinciples, and a

Boonton 4240 Series RF Power Meter 1. General Information This instruction manual provides you with the information you need to install, operate and

Boonton 4240 Series RF Power Meter Figure 6-1. Pulsed RF Signal Figure 6-2. Distorted Pulse Signal Application Note

Boonton 4240 Series RF Power Meter 6.1.2 Diode Detection Wideband diode detectors are the dominant power sensing device used to measure pulsed RF

Boonton 4240 Series RF Power Meter Frequenccapacicannottable f Misma nding on the mismatminim Signalcalibrat nal and second harmonic combininsigni egi

Boonton 4240 Series RF Power Meter 6.2 M The 424 Standard year calibratio chapter assumes that the power meter is being maintained correctly and is

Boonton 4240 Series RF Power Meter Tual his reason, the uncertainties are more commonly combined using the RSS method. RSS is an abbreviation for “ro

Boonton 4240 Series RF Power Meter The value to use for calibration level uncertainty depends upon the sensor calibration technique used. If AutoCal

Boonton 4240 Series RF Power Meter Sensor Temperature Coefficient. This term is the error which occurs when the sensor’s temperature has changed sign

Boonton 4240 Series RF Power Meter 6.2.3 Sample Uncertainty Calculations. The following example shows calculations for a CW power sensors. The fig

Boonton 4240 Series RF Power Meter Step 6: The Sensor Temperature Drift Error depends on how far the temperature has drifted from the sensor calibrati

Boonton 4240 Series RF Power Meter Step 1 certainty terms has been determined, we can combine them to calculate the worst-case a U (±%) K (U×K)2

Boonton 4240 Series RF Power Meter 1.2 Description The Model 4240 is a digital signal processor based, single or dual channel, solid state RF power

Boonton 4240 Series RF Power Meter This page intentionally left blank. Application Notes 6-12

Boonton 4240 Series RF Power Meter 7. Maintenance Th .1 Safety

Boonton 4240 Series RF Power Meter 7.5 Firmware Upgrade Instructions equirements The Firmware Update file is a text file in S-record format. Any uti

Boonton 4240 Series RF Power Meter 7. During time the 4240 will display "FIRMWARE DOWNLOAD". Thapprox e 45 seconds to completely transfer.

Boonton 4240 Series RF Power Meter This page intentionally left blank. Maintenance 7-4

Boonton 4240 Series RF Power Meter 8. ges Appendix A SCPI Error Messa .1 SCPI Erro8 r Messages -101 “SubCmd not found” -113 "Undefined head

Boonton 4240 Series RF Power Meter NO. MESSAGE DESCRIPTION sor Disconnected." -249 "FPGA download err" 63 “MFS Init” 64 “Flash i

Boonton 4240 Series RF Power Meter Appendix B 9-1 9. Appendix B Warranty & Repair Repair Policy 4240 Series Instrument. If the Boonton 4240 Ser

Boonton 4240 Series RF Power Meter Appendix B 9-2 THE FOREGOING WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUD-ING, BUT

Boonton 4240 Series RF Power Meter • ual Independent Channels. When equipped with the optional second measurement channel, the • • optimized throu

Boonton 4240 Series RF Power Meter • • ne key press operations. To provide for ease of use operation of the instrument functions that mply by pres

Boonton 4240 Series RF Power Meter 1.4 Accessories 40 ac data sensor adapter for each channel installed the instrument. One or more Boonton 51000

Boonton 4240 Series RF Power Meter Option designations are appended to the instrument’s base model number. For example, Model 4242-01-nel instrum ca

Boonton 4240 Series RF Power Meter Table 1-2 4240 Series Performance Specifications (continued) pecifications aNCERTAINTIES easurement Accuracy Sum

Boonton 4240 Series RF Power Meter Table 1-2 4240 Series Performance Specifications (continued) (Specifications are subject to change without notic

Boonton 4240 Series RF Power Meter Table 1-2 4240 Series Performance Specifications (continued) (Specifications are subject to change without notic

Boonton 4240 Series RF Power Meter INSTRUCTION MANUAL, 4240 SERIES RF POWER METER Revision date 01/19/2011 © Cop

Boonton 4240 Series RF Power Meter This page intentionally left blank. General Information 1-10

Boonton 4240 Series RF Power Meter 2. Installation This section contains unpacking and repacking instructions, power requirements, connection descrip

Boonton 4240 Series RF Power Meter Table 2-1 4240 Series Packing List INSTRUMENT (See also Table 1-1) 4240 Series RF Power Meter Line Cord Boon

Boonton 4240 Series RF Power Meter Recorder If a recorder is to be used to record measurement data, connect the recorder to the recorder BEC conne

Boonton 4240 Series RF Power Meter 6. Press the <MENU> key and select DIAGNOSTICS with the down arrow key. Press <ENTER>.

Boonton 4240 Series RF Power Meter 3. Getting Started This chapter will introduce the user to the 4240 Series. The chapter will identify objects on

Boonton 4240 Series RF Power Meter Figure 3-1. Standard 4240 Series RF Power Meter - Front Panel Table 3-1 Operating Controls, Indicators and C

Boonton 4240 Series RF Power Meter Table 3-1 Operating Controls, Indicators and Connections (continued) Reference # Front Rear Nomenclature Fu

Boonton 4240 Series RF Power Meter Table 3-1 Operating Controls, Indicators and Connections (continued) Reference # Front Rear Nomenclature Fu

Boonton 4240 Series RF Power Meter Figure 3-2. 4240 Series - Rear Panel (Shown without optional rear panel connectors not installed) Getting Star

Boonton 4240 Series RF Power Meter SAFETY SUMMARY The following general safety precautions must be observed during all phases of operation and main

Boonton 4240 Series RF Power Meter 3.3 Operation The Model 4 c e r e o i e c h o l 240 an b configu ed for op rati n v a th six swit hes on

Boonton 4240 Series RF Power Meter DUAL CHANNEL ACM M M M M L U PK∆ ± D D D D D D U U U ( B A R G R A P H )

Boonton 4240 Series RF Power Meter 3-5. Mod nd Set ast Menu Operatio ey stokes to perform a function repeat d , the control program can ing to t .

Boonton 4240 Series RF Power Meter 3.3.1 Menu Key. he instrument's, CHA P, REPORT and DIAGNOSTIC functions are accessed when the sor can be posit

Boonton 4240 Series RF Power Meter Table 3-2 CHANNEL MENU Functions Function De Parameters Defaults RTN e n e tr e o r u e . NITS Units used for

Boonton 4240 Series RF Power Meter R T N L E L 6 V E > - 0

Boonton 4240 Series RF Power Meter Table 3-4 SETUP MENU Functions n u Function De rs Defaults SAVE Saves the current instrument 1- 0 1 confi

Boonton 4240 Series RF Power Meter Table 3-5 IEEE MENU Functions (continued) OS LSTN End of string indicator for LF, CR, CRLF, NONE LF received m

Boonton 4240 Series RF Power Meter Table 3-6 RS232 MENU Functions (continued) Function Description rs e u PARITY bit mode in a m ssage. ODD, NO

Boonton 4240 Series RF Power Meter Table 3-7 DIAGNOSTICS MENU Functions (continued) Function Description Parameters Defaults SELF TEST Instructs

Boonton 4240 Series RF Power Meter SAFETY SYMBOLS This safety requirement symbol (located on the rear panel) has been adopted by the International El

Boonton 4240 Series RF Power Meter Figure 3-15. Access Code R T N M &

Boonton 4240 Series RF Power Meter Function Description Parameters Defaults : Factor 5000 [0 to 6] : [0 to 9999] the n/a n/a calibratio

Boonton 4240 Series RF Power Meter Table 3-9 FREQ Menu Functions unction Description Parameters Defaults F FREQ Frequency 0.01 to 100.00 GHz

Boonton 4240 Series RF Power Meter 3.3.3 FREQ Key. he freTinquency of the signal being measured must be entered in order to use the stored high frequ

Boonton 4240 Series RF Power Meter he user may also perform a 0 dBm calibration by one key stT roke of the Zero/Cal key. Simply connect the sensor to

Boonton 4240 Series RF Power Meter Table 3-10 Reference Level Menu Functions unction Description Parameters Defaults Bm Reference level value in

Boonton 4240 Series RF Power Meter This page intentionally left blank. Getting Started 3-22

Boonton 4240 Series RF Power Meter 4. Operation This section provides detailed background information on various aspects of operation of the Model 4

Boonton 4240 Series RF Power Meter these figures show the decay of measured power after a large signal has been applied. The typical error that can b

Boonton 4240 Series RF Power Meter Figure 4-2 Diode Sensor Decay Operation 4-3

Boonton 4240 Series RF Power Meter 1. General Information...

Boonton 4240 Series RF Power Meter 4.3 Dynamic Range The hold range mode is useful when he hold range mode is active when a specific instrument e

Boonton 4240 Series RF Power Meter 4.4 Filtering The Model 4240 employs digital filtering (averaging of measurements) to reduce the noise floor of

Boonton 4240 Series RF Power Meter Operation 4-6

Boonton 4240 Series RF Power Meter Figure 4-5. Noise Reduction Figure 4-6. Typical Error Band Specifications Figure 4-7. Probability of Falling wi

Boonton 4240 Series RF Power Meter Figure 4-8. Confidence Curves, 51013 Sensor with 2.8 Second Filter Operation 4-8

Boonton 4240 Series RF Power Meter Figure 4-9. Confidence Curves, 51013 Sensor with 10 Second Filter Operation 4-9

Boonton 4240 Series RF Power Meter Noise Error Examples. Figures 4-8 and 4-9 show the computed error for the 51013 diode sensor at different power le

Boonton 4240 Series RF Power Meter ontinuous Response. Regardless of the overhead time or the digital filter length, the Model 4240 will output readi

Boonton 4240 Series RF Power Meter Figure 4-11. Mismatch Uncertainties Chart 4.8 Waveform Sensitivity Thermal sensors are insensitive to the wav

Boonton 4240 Series RF Power Meter Diode 20 dBm (-10 dBm and 0 dBm for attenuated models 51015 and 1033). This response characteristic is obtained b

Boonton 4240 Series RF Power Meter 4.3 Dynamic Range...

Boonton 4240 Series RF Power Meter nly the display is affected by the duty cycle calculation. The mOperation 4-14 easurement process is subject to t

Boonton 4240 Series RF Power Meter 5. Remote Operation 5.1 GPIB Configuration The 4240 GPIB interface is configured using the Menu > SETUP >

Boonton 4240 Series RF Power Meter Additionally, the ASCII "DC2" character (hexadecimal 12/CTRL R) will cause the instrument to immediately

Boonton 4240 Series RF Power Meter suffix is not present, the default channel is assumed. strument’s “Channel 1” measurement path, while SENSFor exam

Boonton 4240 Series RF Power Meter Examples: :CALCulate:STATe ON Turn on measurement channel 1 (default channel number) ON Turn on measurement chan

Boonton 4240 Series RF Power Meter 5.4 Basic Measurement Information e easiest asequence which includes a MEAS1:POWERMEAS1:VOLTAGE? To return th

Boonton 4240 Series RF Power Meter 5.5 SCPI Command Reference te commands accepted by the 4240 Series. The list is grouped by SCPI subsystem r IEEE

Boonton 4240 Series RF Power Meter *ESR? Description: Return the current value of the Standard Event Status Register, then clear the register. Th

Boonton 4240 Series RF Power Meter *OPT? Description: Return the status of Channel 1 and Channel 2 followed by a list of installed options. Syntax

Boonton 4240 Series RF Power Meter *STB? Description: Return the current value of the Status Byte register. This register has bits assigned to a

Boonton 4240 Series RF Power Meter CALCulate:LIMit:LOWer[:POWer] ... 5-10 CALCulate:LIMi

Boonton 4240 Series RF Power Meter 5.5.2 CALCulate Subsystem he CALCulate group of the command subsystem is used to configure post acquisition data p

Boonton 4240 Series RF Power Meter CALCulate:LIMit:UPPer[:POWer] Description: Set or return the upper limit power level for the selected channel. Thi

Boonton 4240 Series RF Power Meter CALCulate:MATH:ARGA Description: Set or return the first argument to be used for channel math operations.

Boonton 4240 Series RF Power Meter CALCulate:REFerence:COLLect Description: For the selected channel, make the current power the reference level

Boonton 4240 Series RF Power Meter 5.5.3 CALibration Subsystem ommands is used to control automatic zero offset and linearity adjustments to the RF p

Boonton 4240 Series RF Power Meter 5.5.4 DISPlay Subsystem Syntax: DISPlay:ACTive <numeric value> Argument: <numeric value> = 1 to 2

Boonton 4240 Series RF Power Meter DISPlay:LABel:TEXTA Description: Displays a text message of up to 20 characters in the first label field when Di

Boonton 4240 Series RF Power Meter 5.5.5 FETCh Queries The FETCh? group of queries is used to return specific measurement data from a measurement cyc

Boonton 4240 Series RF Power Meter 5.5.6 INITiate and ABORt Commands tion in progress and prepares e instrument for an INITiate command. BORt on:

Boonton 4240 Series RF Power Meter 5.5.7 MEASure Queries used to acquire data using a set of high level instructions. They are structured to allow

Boonton 4240 Series RF Power Meter OUTPut:LEVel[:POWer] ... 5-21 OUTPut

Boonton 4240 Series RF Power Meter 5.5.8 MEMory Subsystem is used to save and recall instrument operating configurations, and to edit and review use

Boonton 4240 Series RF Power Meter 5.5.9 OUTPut Subsystem The OUTPut group of commands is used to control various outputs of the 4240. These output

Boonton 4240 Series RF Power Meter OUTPut:RECorder:SOURce Description: Set or return the source channel for the Recorder Output. Syntax: OUTPut:R

Boonton 4240 Series RF Power Meter 5.5.10 READ Queries he purp AData. READ s theis equivalent to ABORtinready. READ? generally every time it is iss

Boonton 4240 Series RF Power Meter 5.5.11 SENSe Subsystem The purpose of the SENSe command subsystem is to directly configure device specific setting

Boonton 4240 Series RF Power Meter SENSe:FILTer:STATe Description: Set or return the current setting of the integration filter on the selected cha

Boonton 4240 Series RF Power Meter 5.5.12 STATus Commands ables you to control the SCPI defined status reporting structures. The user may amine the

Boonton 4240 Series RF Power Meter STATus:DEVice:EVENt? Description: Returns the current contents of the Device Event register then resets the reg

Boonton 4240 Series RF Power Meter STATus :CO Description: real time, and can change es in the instrument’s operating condition. :OPERation NDition

Boonton 4240 Series RF Power Meter STATus:OPERation:NTRansition alue of the negative transition filter bitmask for the Operation status group. the n

Boonton 4240 Series RF Power Meter SYSTem:COMMunicate:SERial:PARity... 5-34 SYSTem:COMMunicate:

Boonton 4240 Series RF Power Meter STATus:QUEStionable:CONDition? f the Questionable Condition register. The following table shows the Bit Va Descr

Boonton 4240 Series RF Power Meter STATus:QUEStionable:NTRansition Description: Set or return the value of the negative transition filter bit mask

Boonton 4240 Series RF Power Meter STATus:QUEStionable:CALibration:ENABle Description: Sets or returns the Questionable Calibration Enable register

Boonton 4240 Series RF Power Meter 5.5.13 SYSTem Subsystem T Tem group o mmands is used to control system-level functions not directly related to ins

Boonton 4240 Series RF Power Meter SYSTem:COMMunicate:GPIB:TALK of-string terminator . UD UD <numeric value> 00, 1200, 2400, 4800, 9600, 19200,

Boonton 4240 Series RF Power Meter SYSTem:ERRor[:NEXT]? d error code number followed by a quoted ASCII text string describing the error. Note that er

Boonton 4240 Series RF Power Meter .5.14 INSTrument:VERSion Commands p of commands is used to q ode follows a “YYYYMMDD” format. The FPGA revisio s

Boonton 4240 Series RF Power Meter .5.15 SCPI Command Summary Table 5-1. SCPI 5 COMMAND SUMMARY ESE Set/get Standard EvenBORt to idle iate] L?

Boonton 4240 Series RF Power Meter Ta d) ble 5-1. SCPI COMMAND SUMMARY (continue CALCulate:MATH:ARGB Set or return the second argument to be used fo

Boonton 4240 Series RF Power Meter Table 5-1. SCPI COMMAND SUMMARY (continued) DISPlay:Label:TEXTC Displays a text message in the third label field.