Anritsu ML2400A Series Operation Manual
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Anritsu ML2400A Series Operation Manual

Power meter
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  • Page 1 T h e t e s t & me a s u r e me n t e q u i p me n t y o u n e e d a t t h e p r i c e y o u w a n t . A l l t e s t I n s t r u me n t s , I n c .
  • Page 2 ML2400A SERIES POWER METER OPERATION MANUAL ANRITSU LTD (EMD) P/N: 10585-00013 RUTHERFORD CLOSE REVISION: C STEVENAGE PRINTED: AUGUST 1999 HERTS COPYRIGHT 1999 ANRITSU SG1 2EF...
  • Page 3 WARRANTY The ANRITSU product(s) listed on the title page is (are) warranted against defects in materials and workmanship for one year from the date of shipment. ANRITSU's obligation covers repairing or replacing products which prove to be defective during the warranty period.
  • Page 4 Safety Sym bols To pre vent the risk of per sonal in jury or loss re lated to equip ment mal - func tion, AN RITSU Com pany uses the fol low ing sym bols to in di cate safety- related in for ma tion. For your own safety, please read this in for - ma tion care fully BEF ORE op er at ing the equip ment.
  • Page 5 For Safety WARN ING Al ways ref er to the op era tion man ual when work ing near lo ca tions at which the alert mark, shown on the left, is at tached. If the op era tion, etc., is per formed with out heed ing the ad vice in the op era tion man ual, there is a risk of per sonal in jury.

  • Page 6: Table Of Contents

    Table of Contents Chapter 1 - General Information 1-1 Scope of This Manual ......1-1 1-2 Introduction .
  • Page 7 Chap ter 5 - Pro ce dures 5-1 In tro duc tion ....... . 5-1 5-2 Power Mea sure ment .
  • Page 8 Ap pen dix A - Spec i fi ca tions A-1 In tro duc tionA-1 A-2 Sys tem Spec i fi ca tions ......A-1 A-3 Sys tem De faults .

  • Page 9: Scope Of This Manual

    The files can be viewed us ing Ac ro bat Read er™, a freeware pro - gram provided on the CD ROM. For price and avail abil ity, con tact the near est Anritsu Cus tomer Serv ice Center or visit our web site at: www.global.anritsu.com.

  • Page 10: Identification Number

    NUMBER 3-2). Please use the com plete ID number when or der ing parts or cor re - spond ing with the Anritsu Cus tomer Serv ice de part ment. POWER METER The ML2400A Se ries Power Me ter is avail able with ei ther one or two MODELS, OPTIONS, AND sen sor in puts, and is de livered with a 1.5m sen sor ca ble (ML2400A- 20)

  • Page 11: Sensors

    GENERAL SENSORS INFORMATION SENSORS The fol low ing sen sors, sen sor op tions, and sen sor ac ces so ries are avail - able for use with the ML2400A Se ries Power Me ters: Power Sen sors (–70 to + 20 dBm) Model No.

  • Page 12: Chapter 2 - Installation

    Installation INTRODUCTION This chapter provides information for the initial inspection and preparation for use of the ML2400A Series Power Meter. Shipping and storage informa- tion is also included. INITIAL Inspect the shipping container for damage. If the container or cushioning ma-...

  • Page 13: Power Requirements

    Charging, Removal and Replacement, for further in- formation. Fuses The ML2400A Series Power Meter AC and DC input lines are protected by internally mounted fuses. These fuses should only be changed by qualified service personnel. Replace only with fuses of the same type and rating (AC fuse is 2A, 250V, slow-blow;...

  • Page 14: Environmental Requirements

    DC supply. ENVIRONMENTAL The ML2400A Series Power Meter is designed to operate within the tempera- REQUIREMENTS ture range of 0 to 50° C with a maximum humidity of 90% at 40° C, non-condensing.

  • Page 15: Rack Mounting

    The procedure involves fitting the support bracket to the PM. The PM can then be loaded and secured in the rack position desired. The required parts and tools are listed below: Quantity Anritsu Part Max. Torque Description (each) Number...
  • Page 16 INSTALLATION RACK MOUNTING 3. Lay the large support bracket D41473 next to the Power Meter as per the as- sembly drawing. Note if the PM needs to be mounted on the left hand side of the rack, simply lay the bracket on the PM,s right side. i.e. a mirror image of the assembly drawing.
  • Page 17 The two units be- come locked together and can then be loaded and secured in the rack. The required parts and tools are listed below: Quantity Anritsu Part Max. Torque Description (each)
  • Page 18 INSTALLATION RACK MOUNTING 1 Small Phillips screw driver 1 Large Phillips screw driver 1 Small Phillips torque screw driver 10cNm to 120cNm. 1 Assembly drawing “ML2400/03 SIDE BY SIDE OPTION” Assembly Procedure 1. Confirm the correct tools are available and the parts listed above are present. Refer to diagram on page 2-8 throughout this procedure.
  • Page 19 RACK MOUNTING INSTALLATION 900-345 49415 905-68 RACKMOUNT SIDE C37279 BRACKET (MULTI-FIT). 900-807 X2 RACKMOUNT BRACKET USE THIS BRACKET 900-806 X2 CENTER INNER REAR WHEN FITTING A USE THESE FIXINGS WHEN FITTING HP34401A 49413 A MF2412A COUNTER TO A ML2430A 900-795 RACKMOUNT BRACKET POWER METER 905-63...

  • Page 20: Battery Charging, Removal And Replacement

    BATTERY CHARGING, REMOVAL AND REPLACEMENT INSTALLATION The optional ML2400A Series Power Meter battery is a 12 Volt, 3000 BATTERY CHARGING, mA-h nickel-metal hydride (Ni-MH) multi-cell pack, located in a com- REMOVAL AND partment on the bottom of the housing. The compartment cover is se- REPLACEMENT cured by fractional turn fasteners, as shown in Figure 2-1.
  • Page 21 Replace the battery only with an identical battery or an equivalent as on fire if it is opened, disas- recommended by an Anritsu Service Center. Ensure that the battery sembled, or exposed to fire is correctly connected and that the battery compartment cover is se- or very high temperatures.

  • Page 22: Storage And Shipment

    Shipment should be repackaged in the original shipping container. If this container is no longer available and the power meter is being returned to Anritsu for re- pair, advise your Anritsu Customer Service Center; they will send a new shipping container free of charge. In the event neither of these two options is possible, follow the packaging instructions below.
  • Page 23 STORAGE AND SHIPMENT INSTALLATION Table 2-3. ANRITSU Service Centers UNITED STATES FRANCE KOREA ANRITSU SALES COMPANY ANRITSU S.A ANRITSU KOREA 685 Jarvis Drive 9 Avenue du Quebec #901 Daeo building 26-5 Morgan Hill, CA 95037-2809 Zone de Courtaboeuf Yeoido Dong, Youngdeungpo...

  • Page 24: Introduction

    Chap ter 3 Con nec tions This chap ter de scribes physi cal con nec tions to the power me ter on both INTRODUCTION the front and rear pan els. FRONT PANEL The front panel con nec tors are il lus trated in Fig ure 3-1. De tailed de - CONNECTORS scrip tions of each con nec tor fol low.

  • Page 25: Rear Panel Connectors

    Only MA2400A Se ries sen sors can be con nected di rectly to the ML2400A Se ries Power Me ters. MA4700A and MA4600A Se ries sen sors re quire the MA2499A or MA2499B Anritsu Sen sor Adapter. MP-Series (10-pin) sen sors re quire an MA4001A or MA4002B adapter and an MA2499B.
  • Page 26 DC Power Sup ply In put on us ing Se rial Re mote Op er a tion. Al lows com - mu ni ca tion with an Anritsu 68/69000-series syn - Used for 12- 24 VDC in put in the ab sence of AC the sizer in Source Sweep mode.

  • Page 27: Introduction

    Chap ter 4 Front Panel Op era tion The ML2400A Se ries Power Me ter is con trolled from the front panel us ing INTRODUCTION the five main menu keys; Sen sor, Chan nel, Trig ger, Sys tem, and Cal/Zero. This chap ter ex plains the power-on pro ce dure and the fea tures and func tions of each of the menus.

  • Page 28: Front Panel Controls

    FRONT PANEL CONTROLS OPERATION Graphic LCD with Back light Soft Keys The LCD dis play set tings are con fig ured in the Soft keys se lect submenus, tog gle se lec tions, Sys tem menus. The back light can be turned on or con trol cur sor po si tion, and al low data en try.

  • Page 29: Power-On Procedure

    OPERATION POWER-ON PROCEDURE POWER-ON At power- on, the power me ter per forms a brief power-on self test PROCEDURE (POST). After the POST, the in stru ment loads the last used con figu ra - tion and dis play set tings. If a POST er ror oc curs, in for ma tion and avail - able op tions will be dis played on the screen.
  • Page 30 Make note of the hexa - deci mal er ror code dis played and con tact your near est Anritsu Serv ice Cen ter (see Chap ter 2, Ta ble 2-1).

  • Page 31: Sensor Menu

    OPERATION SENSOR MENU SENSOR MENU The Sen sor menu has con trols for sen sor data proc ess ing. NOTE When ed it ing an en try in a menu, press ing the CLR key clears the dig its. If in a menu screen, press ing the CLR key re turns to the pre vi ous menu level.
  • Page 32 SENSOR MENU OPERATION Al lows the op er at ing range of the se lected sen sor to be set to the HOLD [RGH] de sired range. Se lect a Range Hold value of 1 to 5, or Auto. When NOTE in Auto, the range changes to take the best meas ure ment auto - mati cally.
  • Page 33 EEPROM. For ex am ple, if cali bra tion fac tors ex ist for 1 and 2 GHz, then the cali bra tion fac tor ap plied for 1.5 GHz will be When the MA2499B Anritsu a value mid way be tween the two.
  • Page 34 SENSOR MENU OPERATION Fac tory Se lects the Fac tory cali bra tion fac tor ta ble. Press ing Fac tory and the +/- key on the nu meric key pad al lows se lec tion of a user- NOTE defined ta ble in ad di tion to the fac tory ta ble.
  • Page 35 OPERATION SENSOR MENU Sets up the Start and Stop fre quen cies and volt ages when Source SETUP [CVSTF is set to V/GHz. This tells the ML2400A how to de ter mine the CVSPF fre quency of the swept sig nal based on the ap plied rear panel CVSTV volt age.
  • Page 36 SENSOR MENU OPERATION Sweep av er ag ing number (1 to 512). NUMBER [AVG AVGM] REPEAT av er ag ing also al lows the user to manu ally se lect the amount of av er ag ing re gard less of the sig nal level, how ever the NOTE dis play is up dated only when the NUMBER of read ings speci fied have been taken (1-512).
  • Page 37 OPERATION SENSOR MENU A NUMBER [GRSWP] B NUMBER (ML2408A only) [GRSWP] Sweep av er ag ing number (1 to 512). RE SET Sweep av er age re set. If the graph sweep av er ag ing state is ON, this key re sets the data points and re starts the sweep to sweep mode.
  • Page 38 SENSOR MENU OPERATION Se lect the off set ta ble number (1-5) when Off set TYPE is set to TA BLE [OFFTBL Ta ble. When a ta ble is se lected, ad di tional soft keys become OFFTBR avail able: OFFTBU OFFVAL] EDIT...

  • Page 39: Channel Menu

    OPERATION CHANNEL MENU CHANNEL MENU The Chan nel menu con trols the op er a tion of a dis play chan nel. There are two dis play chan nels, Chan nel 1 and Chan nel 2. Chan nel 1 ap pears at the top of the read out dis play and chan nel 2 at the bot tom.
  • Page 40 CHANNEL MENU OPERATION This func tion re sets the Min/Max (when ON) for the chan nel se - RE SET [MMRST] lected. Min/Max track ing is not avail able in CDMA mode. Re sets the peak and crest for both dis play chan nels in CDMA RE SET Peak/Crest mea sure ment mode.
  • Page 41 OPERATION CHANNEL MENU When ever the limit units are ac tive, limit check ing is ap plied as fol lows: If the chan nel value is greater than the high limit, and the high limit is turned ON, a FAIL is in di cated. If the chan nel value is be low the low limit, and the low limit is ON, a FAIL is in - di cated.

  • Page 42: Trigger Menu

    TRIGGER MENU OPERATION TRIGGER MENU The Trig ger func tion in the ML2400A al lows the user to de fine un der what con di tions mea sure ments are taken, and the time pe riod they are taken over. For in stance, the READOUT mode can be con fig ured to dis play the av er age power of the ON pe riod of a square wave, or an in di vid ual slot in a GSM burst.
  • Page 43 OPERATION TRIGGER MENU The trig ger icons ap pear as shown in Fig ure 4-2. NOTE Ex ter nal trig ger is only ef fec tive at 800 KHz or lower. Figure 4-2. Trig ger Icons Only when a chan nel in put con figu ra tion in cludes a sen sor with a meas ure - ment mode that re quires an icon, will an icon be dis played.
  • Page 44 TRIGGER MENU OPERATION In Pro file mode, DELAY sets the time de lay (af ter the dis play DE LAY [TRGDLY trig ger de lay) to when the sys tem starts to take and dis play read - GTDLY] ings, rep re sented by the left most cur sor. En ter 0.0 to 1.0 sec - onds, in ms or m s.
  • Page 45 OPERATION TRIGGER MENU FROM GENERATOR GSM BURST BURST TRIGGER SYNC FROM GENERATOR Fig ure 4-3. Typical Arming Diagram 1. Con nect to the rear panel dig i tal in put. 2. Se lect Trig ger|Setup|ARMING|Blanking ON . 3. Set the po lar ity of the blank ing (Sys tem menu) Ex am ple power me ter read ing: –9.16 dBm.
  • Page 46 TRIGGER MENU OPERATION Fig ure 4-4 shows a typi cal trig ger tim ing dia gram. Note that the dis play trig ger de lay is only pres ent when in Pro file op era tion mode, and helps in set ting the ‘wi ndow’ po si tion along the sig nal. Figure 4-4.

  • Page 47: System Menu

    OPERATION SYSTEM MENU SYSTEM MENU The Sys tem menus con trol the op er at ing modes, dis play vis i bil ity, sound, rear panel func tions, and bat tery state of the ML2400A Se ries Power Me ter. Note that the soft keys will ap pear dif fer ently de pend ing upon the op er a tion mode se lected with the Setup soft key be low.
  • Page 48 SYSTEM MENU OPERATION With LINK read out/pro file trig ger set to ON, switch ing to Read out mode uses the same trig ger con di tions, but al lows the full dy - NOTE namic range of the me ter to be used, as well as providing full GPIB speed on data ac qui si tion.
  • Page 49 OPERATION SYSTEM MENU Pro file This soft key be comes avail able when the Sys tem|Setup|MODE is set to Pro file . Pro file op era tion mode in cludes the fol low ing dis play con trols: Se lect Chan nel 1 or Chan nel 2. The chan nel se lected will be dis - CHAN NEL [GRMD] played on the left of the screen, above the mid dle value of the y...
  • Page 50 SYSTEM MENU OPERATION Se lect Chan nel 1 or Chan nel 2. The chan nel se lected will be dis - CHAN NEL [GRMD] played on the left of the screen, above the mid dle value of the y axis. Se lects how the graph is dis played on the screen.
  • Page 51 OPERATION SYSTEM MENU This se lects how the graph is dis played on the screen. Se lect from DATA HOLD [GRPIX] NORMAL, Min&Max, Min, or Max. NOTE With Min & Max se lected, the min i mum and max i mum points for If ei ther Min&Max, Min, each sam ple are shown.
  • Page 52 SYSTEM MENU OPERATION The sup ple men tal data read out is dis played or re moved with the READ OUT [GRDATA READOUT soft key. The read out pro vides dis play data de pend ing GRDRQ] on the graph mode and the data hold type se lected, as shown below.
  • Page 53 OPERATION SYSTEM MENU Data hold = MIN (or MAX) : cur sor 1 min i mum read ing, or max i mum if MAX mode cur sor 2 min i mum read ing, or max i mum if MAX mode Power diff be tween cur sor 1 and cur sor 2 min i mums (or max i mums if MAX mode) Time at cur sor 1...
  • Page 54 SYSTEM MENU OPERATION Avail able in Pro file, Source Sweep and Power vs. Time modes CLEAR [GPRST] when the DATA HOLD rep re sen ta tion se lec tion is not set to NORMAL (or AVERAGE for Power vs. Time). Pressing the CLEAR key re starts the min/max col lec tion.
  • Page 55 OPERATION SYSTEM MENU Turns on the peak me ter dis play for Sen sor A, Sen sor B, or both PEAKMETER [DPEAK] Sen sors A and B. The peak me ter dis play will eclipse any trig ger NOTE icons. The peak me ter dis play range cov ers 12 dB. When above the dis played maxi mum or be low the dis played mini mum, the In the event the chan - range is switched by 10 dB in the ap pro pri ate di rec tion.
  • Page 56 SYSTEM MENU OPERATION Print This se lec tion prints the screen and vari ous op era tional set tings through the [PRINT] rear panel printer port. Figure 4-7. Sam ple ML2400A Se ries Print out Con trols bat tery setup when the op tional bat tery pack is installed. Bat tery En ables or dis ables the auto matic power off fea ture.
  • Page 57 OPERATION SYSTEM MENU NOTE Im me di ately af ter power- on, the “es ti mated op er at ing time re main ing” dis played may not be genu ine, as the bat tery re quires a few min utes to cal cu late the pres ent rate of dis charge.
  • Page 58 Source IF al lows the power me ter to com mu ni cate with an Anritsu 68/69000-series syn the sizer when the op er a tion mode is NOTE set to Source Sweep.
  • Page 59 OPERATION SYSTEM MENU LIMITS [MODLIM] – If this is set, and the lim its fail, then the num ber spec i fied in the “phone num ber” field will be di aled. Re - mote com mu ni ca tions can then con tinue as nor mal. RANGE [MODRNG] –...
  • Page 60 SYSTEM MENU OPERATION Sig nal chan nel A or B (port 1 or port 2) pro vides a real time out - put from the sig nal chan nel. Be ing real time, it shows mod u la - tion, etc., and is taken af ter the sig nal has been through range am pli fi ers.
  • Page 61 OPERATION SYSTEM MENU Con fig ures the rear panel printer port. Se lect from the listed Printer [PRNSEL] com pati ble print ers which in clude, but are not lim ited to, the fol low ing: HP DeskJet 340 Canon BJC80 Other 300, 500, 600 Se ries and later HP print ers are typ i cally com pat i ble.

  • Page 62: Cal/Zero Menu

    CAL/ZERO MENU OPERATION CAL/ZERO MENU The Cal/Zero menu es tab lishes the 0.0 dBm ref er ence cali bra tion and ze ro ing of the sen sors. Re fer to Chap ter 5 for spe cific pro ce dures. Zero/Cal This func tion ze ros and then sets the 50 MHz, 0.0 dBm ref er ence of the con - nected sen sor.

  • Page 63: Chap Ter 5 - Pro Ce Dures

    Chap ter 5 Pro ce dures This chap ter pres ents some com mon pro ce dures for use with the INTRODUCTION ML2400A Se ries Power Me ter. These pro ce dures ref er to the ML2400A Se ries front and rear panel con nec tors and front panel keys and menus as ex plained in Chap ter 3, Con nec tions, and Chap ter 4, Front Panel Op - era tion.

  • Page 64: Sensor Calibration

    SENSOR CALIBRATION PROCEDURES The sen sor can ei ther be ze roed, or ze roed and cali brated in the same op era tion. To zero the sen sor with out cali bra tion, press the Cal/Zero front panel key and the Zero soft key, then se lect the ap pro pri ate sen sor. ML2400A Cal/Zero Zero...

  • Page 65: Sensor Zero/Cal

    PROCEDURES SENSOR ZERO/CAL On suc cess ful com ple tion of the calibration op era tion, the buzzer sounds. If the sensor fails the calibration op era tion, the message SENSOR x CAL 0 dBm in valid is dis played. Any er ror con di tions en coun tered dur ing calibration, for ex am ple the pres ence of ex tra ne ous noise or RF sig nals, will re sult in an er ror mes - sage on the front panel dis play.

  • Page 66: Performance Verification

    The per for mance of the Power Me ter’s in di vid ual sig nal chan nel in puts can be VERIFICATION ver i fied us ing an Anritsu ML2419A Range Cal i bra tor. Re fer to the ML2419A Range Cal i bra tor Op er a tion and Main te nance Man ual (10585-00007) for spe - cific in struc tions.

  • Page 67: Serial Remote Operation

    While most stan dard se rial ca bles will suf fice, a 9-pin null-modem se rial in ter - face ca ble is avail able from Anritsu as an op tional ac ces sory (part num ber Se rial in ter face re mote B41323).

  • Page 68: Rs232 Modem Support

    RS232 MODEM SUPPORT PROCEDURES Re quested data is re turned in the same for mat as with GPIB, but with a pre - ced ing 'R' and a ter mi nat ing new line char ac ter. SRQs are avail able, and are out put as SRQ mes sage 'S' fol lowed by a ter mi nat ing new line char ac ter.
  • Page 69 PROCEDURES RS232 MODEM SUPPORT Con nected De vice Char ac ter Se quence Com puter con nected di rectly "+++at\r\rS\n" Mo dem offline from phone net work mo dem sta tus data fol lowed by "S\n" Se quence will be seen if re mote con nec tion es tab lished Mo dem con nected through to re mote com - "+++S\n"...
  • Page 70 RS232 MODEM SUPPORT PROCEDURES Mo dem Com pat i bil ity The ML2400A Se ries Power Me ter firm ware sup ports Hayes-compatible mo - and Com mands dems. The com mands used are as fol lows: Com mand Def i ni tion mo dem es cape se quence re set mo dem to fac tory de faults at&h1&r2x4v1q0f1s0=1e0...
  • Page 71 PROCEDURES RS232 MODEM SUPPORT RANRITSU,ML2408A,<se rial num ber>,<firm ware ver sion> 4. To set a limit for chan nel 1 and to have the power me ter autodial a re mote com puter when this limit fails, send the fol low ing se quence: LLIM 1,-12DBM Sets low limit on chan nel 1 to -12dBm LLIMS 1,ON...

  • Page 72: Profile Operation Mode

    PROFILE OPERATION MODE PROCEDURES To de ter mine what has caused the SRQ, the sta tus reg is ter in the power me ter must be read. The sta tus reg is ter in the me ter is an 8-bit reg is ter. There are two ways to do this.
  • Page 73 PROCEDURES PROFILE OPERATION MODE up and view ing sig nals in the Pro file mode. Pro file mode al lows the view ing of a sin gle chan nel (1 or 2 as set up in the Chan nel menu) plot ted against time. NOTE To view the time pro file of a sig nal, en ter the PROFILE mode via SYSTEM|SETUP|MODE (tog gles through READOUT, PROFILE and POWER...
  • Page 74 PROFILE OPERATION MODE PROCEDURES 5. Press SYSTEM|CONTROL to get ac cess to the cur sor. Press << and >> to move the se lected cur sor, and SWAP to se lect the other cur sor. NOTE With a CONTINUOUS trig ger such as this, there will most likely not be spe cific points of in ter est, so the move ment of the cur sors is rather ar bi trary.
  • Page 75 PROCEDURES PROFILE OPERATION MODE dis cussed more fully in the Trig gered Meas ure ments sec tion below. Range Hold may be se lected (see page 4-6) to limit dy - namic range and pre vent small range change dis tur - bances on very high speed sig nals.
  • Page 76 PROFILE OPERATION MODE PROCEDURES The unique method of range chang ing ap plied in this mode means that the change be tween range 1 and 2 is ef fected in less than 2 m s. In most cases it is not no tice - able, al though there may be a slight dis con ti nu ity.
  • Page 77 PROCEDURES PROFILE OPERATION MODE The x- axis no men cla ture al ways de notes this point with a time of ZERO (t=0), this al lows the user to al ways con sider time in ter vals rela tive to the dis play trig ger which is usu ally the point of in ter est.

  • Page 78: Source Sweep Mode

    SOURCE SWEEP MODE PROCEDURES 3. ARMING via an Ex ter nal BLANKING in put. When ARMING is set to Blank ing ON, only sam ples taken when the rear panel Digi tal In put BNC is ac - tive will be av er aged in the meas ure ment. The po lar ity of the rear panel Digi - tal In put BNC sig nal can be set (high or low) us ing the Sys tem|Rear Panel|BNC|TTL LEVEL menu set ting.
  • Page 79 PROCEDURES SOURCE SWEEP MODE RF source us ing the Hor i zon tal ramp (to An a log In put) out put on the RF source. The ML2400A Se ries can also op tion ally use a Se quen tial Sync (to Dig i - tal In put) out put on the RF source.
  • Page 80 Syn the sized Sig nal Gen er a tors (mod els 68XXXB and 69XXXA) us ing a spe cial RS232 ca ble (Anritsu part num ber C37399). To use this re mote con nec tion, the Sys tem|Setup mode must be set to Source sweep , and the Sys tem|Rear panel|RS232 mode must be set to SOURCE IF .

  • Page 81: Power Vs. Time Mode

    POWER vs. TIME MODE 692xxA - 1.26, 693xxA - 1.35, 690x5A - 1.21, 691x5A - 1.24, 692x5A - 1.24, 693x5A - 1.31 Con tact your near est Anritsu Ser vice Cen ter for a firm ware up grade if nec es sary. 5-13 POWER vs.

  • Page 82: User Cal Factors

    User Cal Fac tors are The first time a sen sor is used with the ML2400A Series, a slight de lay may be ac tive. ex pe ri enced when the sen sor is first plugged in. This is caused by the firm ware preparing the sen sor to ac cept user cal fac tor ta bles.

  • Page 83: Optimizing Readings

    PROCEDURES OPTIMIZING READINGS Read out Mode In Read out mode, the bot tom text line in the Status box in di cates what type of cali bra tion fac tors are be ing used. At any time, if any thing other than the fac - tory sup plied cal data is ap plied, the Status box dis play shows a warn ing ‘*’...
  • Page 84 OPTIMIZING READINGS PROCEDURES DISP Using the DISP com mand (page 6-33), the read out dis play can be turned OFF, ON/OFF yet data can still be ac quired from the read out chan nels. (NOTE: Not avail able com mand in Pro file mode or when sent via RS232.
  • Page 85 PROCEDURES OPTIMIZING READINGS Set tling (%) Power Level (dBm) Read ings/Sec ond –30 10.0 10.0 –30 The 0.1% set tling on –30 dBm power level re sults were not im proved be cause of the time needed to set tle to 0.1% at –30 dBm. Us ing Us ing the buff ered Out put chan nel ON com mand (page 6-66), even faster Buff ered...
  • Page 86 PROCEDURES Receivesetup(0,13); /* Fast mode, there fore do not send ‘O 1’ for data, just read.*/ for(i=0; i<10; i++) RcvRespMsg(0,buffer,STOPend); Power Level (dBm) Read ings/Sec ond –30 AN EX AM PLE PRO GRAM IN C #in clude <stdio.h> /* in clude the NI 488.2 GPIB in clude file */ #in clude “DECL.H”...

  • Page 87: Operator Maintenance

    The ML2400A Se ries does not require any op era tor main te nance. All MAINTENANCE re pairs must be per formed by quali fied serv ice per son nel only. Ref er to Ta ble 2-1 for the near est Anritsu Serv ice Cen ter. ML2400A OM 5-25/5-26...

  • Page 88: Introduction

    Chap ter 6 GPIB Operation This chap ter pro vides al pha bet i cally-ordered list ings and de scrip tions of all INTRODUCTION ML2400A Se ries GPIB pro gram ming com mands. The ma jor ity of the GPIB com mands have equiv a lents in the front panel menu set tings.

  • Page 89: Data I/O Formats

    DATA I/O FORMATS GPIB OPERATION HP and ML4803 em u la tion com mands on the other hand, do not have to have a space be tween the com mand header and the pa ram e ter, or com mas be tween the pa ram e ters.
  • Page 90 GPIB OPERATION DATA I/O FORMATS Com mands which are not float ing point, but in te ger, are: All of the Status en able type com mands (*SRE for ex am ple) Stored num bers (i.e., 0, 1, 2, 3, 4, 5) Off set ta ble numbers (i.e., 1, 2, 3, 4, 5, 6...) GPIB ad dresses (1 to 30) User Av er ag ing number in the AVG com mand (1 to 512)

  • Page 91: Query Commands

    *IDN?, 488.2 com mon query. In the ex am ple, the in stru ment iden ti - fies it self as an Anritsu 2410A, with se rial num ber 123456, and soft ware ver - sion 1.0 in stalled. Note that dec i mal 10 (0Ah char ac ter) must be sent with the EOI to sig nal end of trans mis sion.

  • Page 92: Gpib Pc Card Setup

    GPIB OPERATION GPIB PC CARD SETUP GPIB PC CARD The fol low ing GPIB driver con fig u ra tion set up is rec om mended for re li able SETUP GPIB com mu ni ca tion with the ML2400A Se ries power me ter. The set up is ex - pressed in the terms used by the Na tional In stru ments GPIB ISA and PCI cards and driv ers for WIN95 and DOS.

  • Page 93: Using 488.1 Gpib

    USING 488.1 GPIB GPIB OPERATION USING 488.1 GPIB IEEE 488.1 level com mands are in the form of data byte codes with the attention (ATN) line set. A separate function is normally pro vided to drive these commands from a GPIB pro gram. A typical GPIB driver library call for 488.1 and 488.2 is given for each of the following com mands.

  • Page 94: Using 488.2 Gpib

    Event Status Reg is ter (ESR) Power On bit. This bit is set on power up of the de vice only. Not used in the ML2400A Series Com mand er ror. Re ceived an il le gal com mand. Exe cu tion er ror. Could not exe cute a com mand. For ex am ple, a pa rame ter is out of the al low able range, or re quest ing graph data while in read out mode.
  • Page 95 USING 488.2 GPIB GPIB OPERATION Re quest Con trol. GPIB con trol lers only. Op era tion Com plete. When a pro gram mes sage that in cludes the *OPC com - mand has been com pleted, and the GPIB in ter face is idle, with any re sponses read out of the out put buffer this bit is set.

  • Page 96: Service Request Status (Srq)

    GPIB OPERATION SERVICE REQUEST STATUS (SRQ) 2. Re quest data from dis play chan nel 1 by send ing: The SRQ will be set with the new read ing which will now be in the out put buffer ready to be read. The data should now be read so that the MAV bit will be cleared.

  • Page 97: Functional Groups

    FUNCTIONAL GROUPS GPIB OPERATION If data is avail able in the out put queue, this bit is set. This bit can be used to set an SRQ by set ting the same bit in the SRE reg is ter us ing the *SRE com - mand.
  • Page 98 GPIB OPERATION FUNCTIONAL GROUPS com mands (DTRGD and GRPRD) in this group do not change how the sys tem trig gers, only where the graph is drawn af ter a trig ger has oc curred. Re fer to the TRIGGER group func tions to con fig ure the mea sure ment trig ger ing. SEN SOR The SENSOR group com mands se lect the data ac qui si tion con trols for the se - lected sen sor.

  • Page 99: Ml24Xxa Native Commands

    ML24XXA NATIVE COMMANDS GPIB OPERATION 6-10 ML24XXA NATIVE This sec tion pro vides an al pha bet i cal list ing of the GPIB com mands (mne mon - COMMANDS ics) used to pro gram the Model ML2400A Se ries Power Me ter in ML24XXA (na tive) mode.
  • Page 100 GPIB OPERATION ML24XXA NATIVE COMMANDS con figu ra tion com bines sen sors, the com bi na tion is done in lin ear units. If the re sult of the com bi na tion pro duces a nega tive lin ear value and the dis played units are log (i.e., dB) this would be an il le gal loga rith mic op era tion.
  • Page 101 ML24XXA NATIVE COMMANDS GPIB OPERATION Re turn Event status reg is ter en able mask *ESE? GPIB 488.2 Syn tax: *ESE? Re marks: Re turned for mat: <un signed char ac ter> When con verted to an 8- bit bi nary number, this byte yields the bit set - tings of the reg is ter.
  • Page 102 GPIB OPERATION ML24XXA NATIVE COMMANDS Re marks: Places a sin gle AS CII char ac ter '1' on the GPIB out put queue when the con di tions for the *OPC com mand are met. An operation is complete when all input messages before the command have been completed and any responses have been read out of the output buffer.
  • Page 103 ML24XXA NATIVE COMMANDS GPIB OPERATION Re marks: Saves the con figu ra tion of the power me ter into the mem ory lo ca tion speci fied. Sen sor Setup, Chan nel Setup, and Trig ger Setup are saved along with all other in stru ment pa rame ters. Re lated Com mands: *RCL...
  • Page 104 GPIB OPERATION ML24XXA NATIVE COMMANDS Re lated Com mands: GT0, GT1, GT2 *TST? Self Test GPIB 488.2 Syn tax: *TST? Re marks: Per forms a self test and re turns 'PASSED' or 'FAILED.' NOTE: This com mand will re start the sweep in Power vs. Time mode. Re lated Com mands: STERR...
  • Page 105 ML24XXA NATIVE COMMANDS GPIB OPERATION the user to fol low the up date. Since AUTO MATIC av er ag ing auto mati - cally chooses an av er age number with the av er ag ing mode set in ter nally to MOV ING, the USER av er ag ing number is not used.
  • Page 106 GPIB OPERATION ML24XXA NATIVE COMMANDS Auto low level av er ag ing AVGLL SEN SOR Syn tax: AVGLL <s>,<mode> A or B mode: ME DIUM HIGH Re marks: Sets the low level av er ag ing win dow for the sen sor. At reso lu tion set - tings of 0.01 and 0.001dB, digi tal read outs may flicker due to the high read ing rate of the ML2400A Se ries.
  • Page 107 ML24XXA NATIVE COMMANDS GPIB OPERATION Bat tery Auto Turn OFF BAUTS SYS TEM Syn tax: BAUTS <state> state: ENABLE or DISABLE Re marks: En able/dis able the bat tery auto power shut off. NOTE: Al though GPIB is not avail able un der bat tery op era tion, the state of this pa rame ter can be changed for later use.
  • Page 108 GPIB OPERATION ML24XXA NATIVE COMMANDS out put buffer is cleared once a valid GPIB data re quest com mand has been re cog nised. NOTE If the buff er ing en abled is set to OFF and '*OPC?' is used, the '*OPC?' will clear the out put buffer of any pre vi ous re sponse data so only the '1' will ap pear.
  • Page 109 ML24XXA NATIVE COMMANDS GPIB OPERATION fac tor ap plied when per form ing a 0 dBm cali bra tion. If the sen sor cali - bra tion fac tor source is set to V/GHz or Fre quency, the sen sor in ter nal EE PROM cor rec tion value at 50 MHz is used.
  • Page 110 GPIB OPERATION ML24XXA NATIVE COMMANDS CFFRQ A,25E9 CFFRQ A,25GHZ Query: CFFRQ? <s> Re turned String: CFFRQ <s>,<value> CFSRC Cal fac tor source SEN SOR Syn tax: CFSRC <s>,<source> A or B source: FREQ VGHZ Re marks: Sets the source of the cali bra tion fac tor. Fre quency uses the in ter nal EE - PROM cali bra tion fac tor value in the sen sor, from the fre quency set by the CFFRQ number.
  • Page 111 ML24XXA NATIVE COMMANDS GPIB OPERATION tered with this com mand will be avail able for use by the DSP, but will NOT be saved to the sen sor un til a save com mand ( CFUSAV ) is ex e - cuted.
  • Page 112 GPIB OPERATION ML24XXA NATIVE COMMANDS A or B units: % or PCT dB or dBm Re marks: This com mand changes the dis play units of the calfactors be tween ei ther dB or pecentage. Note that this will also set the form the data is out put over the GPIB (or RS232) when re quested.
  • Page 113 ML24XXA NATIVE COMMANDS GPIB OPERATION ta ble num ber: 1 to number of ta bles sup ported by the sen sor type F for the fac tory de fault table Re marks: This command outputs the cal factor table in binary mode in the following form: CFURD<space><length of bi nary data>,<bi nary data>...
  • Page 114 GPIB OPERATION ML24XXA NATIVE COMMANDS Re marks: Se lects the cal fac tor ta ble or com bi na tion of ta bles to be used and auto - mati cally up dates the sensor. Ex am ple: CFU SEL A,13 Se lects the fac tory ta ble plus user ta ble 3 in sen sor A.
  • Page 115 ML24XXA NATIVE COMMANDS GPIB OPERATION A or B Re marks: Re turns the cal fac tor value cur rently be ing used for the spec i fied sen - sor. This will be a fixed value only when in MAN UAL cal fac tor mode, oth er wise the value will de pend on the fre quency en tered when cal source is FREQUENCY and the scaled fre quency when the cal source is V/GHz.
  • Page 116 GPIB OPERATION ML24XXA NATIVE COMMANDS Re turned String: CHCFG <c>,<config> Set chan nel deci mal point reso lu tion CHRES CHAN NEL Syn tax: CHRES <c>,<val> 1 or 2 val: 1 to 3 Re marks: Set the num ber of dec i mal places dis played for the spec i fied chan nel. For ex am ple, spec i fy ing CHRES 1, 1 would yield a dis play of 1.5 dBm;...
  • Page 117 ML24XXA NATIVE COMMANDS GPIB OPERATION Syn tax: CONT Re marks: This com mand will al low the sys tem to con tinue the startup se quence if there are self test fail ures other than DSP er rors. Re lated Com mands: STERR, START Cur sor in Power vs.
  • Page 118 GPIB OPERATION ML24XXA NATIVE COMMANDS V/GHz cali bra tion fac tor stop fre quency CVSPF SEN SOR Syn tax: CVSPF <s>,<val>[units] A or B val: 10 kHz to 122 GHz Re marks: Sets the stop fre quency of the V/GHz cali bra tion fac tor set tings. Ex am ple: CVSPF A, 20 GHz Re lated...
  • Page 119 ML24XXA NATIVE COMMANDS GPIB OPERATION Re turned String: CVSTF <s>,<val> V/GHz cali bra tion fac tor start volt age CVSTV SEN SOR Syn tax: CVSTV <s>,<val>[units] A or B val: –0.5 to 20.5 Re marks: Sets the start volt age of the V/GHz cali bra tion fac tor set tings. Re lated Com mands: CVSPV , CVSPF, CVSTF...
  • Page 120 GPIB OPERATION ML24XXA NATIVE COMMANDS Syn tax: DBLTIM <val> val: 1.0 to 100.0 min utes Re marks: Sets the time limit when the back light will turn off if the DBLGHT set - ting is set to TIMED. NOTE Al though GPIB is not avail able un der bat tery op er a tion, the state of this bat tery-specific pa ram e ter can be changed through this GPIB com mand.
  • Page 121 ML24XXA NATIVE COMMANDS GPIB OPERATION state: ON or OFF Re marks: When us ing GPIB mea sure ment, speed can be in creased by not up dat ing the dis play. This com mand turns off the dis play and writes RE MOTE across the screen.
  • Page 122 GPIB OPERATION ML24XXA NATIVE COMMANDS Dis play Trig ger De lay DTRGD PRO FILE SETUP Syn tax: DTRGD <val> val: 0.0 to 7.0 sec onds Re marks: The de lay time from the trig ger point to when the pro file starts to be drawn (re fer to Fig ure 4-4, page 4-20).
  • Page 123 EMUL GPIB emu la tion mode GPIB SETUP Syn tax: EMUL <mode> mode: ML24XX (Anritsu ML2400A Se ries na tive mode) HP436A (Hewlett-Packard) HP437B (Hewlett-Packard) HP438A (Hewlett-Packard) ML4803 (Anritsu ML4803A Se ries) Re marks: Set the GPIB emu la tion to emu late other types of power me ters. This com mand is avail able in any emu la tion mode, and re sets the whole GPIB in ter face when the emu la tion mode is changed.
  • Page 124 GPIB OPERATION ML24XXA NATIVE COMMANDS Re marks: On de tect ing a DDE event, this com mand re turns the er ror list giv ing the state of the DDE causes. When the er ror list is read all parts of the list are cleared and will be up dated by any fur ther oc cur rence of the listed events.
  • Page 125 ML24XXA NATIVE COMMANDS GPIB OPERATION the sensor is then used in a channel con figu ra tion, it’s zero status will be cor rectly reported. Re lated Com mands: *ESE?, *ESR? Op er ate in non- 488.2 com pli ant mode FAST GPIB SETUP Syn tax:...
  • Page 126 GPIB OPERATION ML24XXA NATIVE COMMANDS Fail Beep On/Off FBEEP SYS TEM Syn tax: FBEEP <c>,<state> 1 or 2 state: ON or OFF Re marks: When ON, causes an audio beep every time the lim its for the se lected chan nel fail. If FBEEP is ON, and FHOLD is ON, when ever the lim its speci fied for the chan nel have been ex ceeded, a beep sounds once every sec ond un til FHOLD is turned OFF, or the CLEAR key (CLR) is pressed.
  • Page 127 ML24XXA NATIVE COMMANDS GPIB OPERATION display ex cept the left hand data is for sen sor A and the right hand is for sen sor B. This command is only valid if the sen sor cal fac tor source is set to ei ther fre quency or V/GHz, and the sen sor is used in a dis - played chan nel.
  • Page 128 GPIB OPERATION ML24XXA NATIVE COMMANDS Re marks: When pro file DATA HOLD mode is set to Min/Max points, this com - mand is used to re set the min/max val ues for each data point. Re lated Com mands: GRPIX GRAUTO Auto scal ing SYS TEM...
  • Page 129 ML24XXA NATIVE COMMANDS GPIB OPERATION Dis play Graph Cur sor Data GRDATA PRO FILE SETUP Syn tax: GRDATA <state> state: ON or OFF Re marks: Dis play the graph cur sor data read out box. GRDATA must be turned on be fore at tempt ing to execute the GRDRQ command to send the data over the GPIB.
  • Page 130 GPIB OPERATION ML24XXA NATIVE COMMANDS <Delta_power> and <Delta_time> are ab so lute val ues. <Av er age> is only pres ent when be tween cur sor av er ag ing is turned ON with the GRAVG com mand. If no data is avail able, that is, a sen sor is not fit ted, the pro file is not trig gered, or the Power vs.
  • Page 131 ML24XXA NATIVE COMMANDS GPIB OPERATION mode NORM MIN MAX Re marks: Changes the type of graph dis played: NORM: Pro files the sen sor read ings vs. time from the trig gered point. MINMAX: Plots both the MIN and MAX val ues for each point on the graph.
  • Page 132 GPIB OPERATION ML24XXA NATIVE COMMANDS Query: GRPTP? Re turned String: GRPTP <val> GRSWP Graph Av er aging Num ber for Pro file or Source Sweep PRO FILE SETUP Syn tax: GRSWP <s>,<val> A or B val: 1 to 512 Re marks: If GRSWS is set to ON, the points on the graph rep re sent the av er aged value of that point against its av er aged value since ei ther the graph averageing was re set, or since it was turned on.
  • Page 133 ML24XXA NATIVE COMMANDS GPIB OPERATION Re turned String: GRSWS <state> Pro file Min/Max track ing mode GRTMM PRO FILE SETUP Syn tax: GRTMM <mode> mode: SIN GLE IN FI NITE Re marks: Set Mini mum and maxi mum track ing mode be tween the cur sors. SIN GLE: Re sets min and max val ues af ter each sweep.
  • Page 134 GPIB OPERATION ML24XXA NATIVE COMMANDS Query: GRYT? Re turned String: GRYT <val> Set to ig nore the Group Exe cute Trig ger (GET) GPIB GPIB TRIG GER com mon com mand Syn tax: Re marks: The ML2400A Se ries will ig nore the GET com mand or a *TRG. Re lated Com mands: *TRG, Group Exe cute Trig ger (GET), GT1, GT2...
  • Page 135 ML24XXA NATIVE COMMANDS GPIB OPERATION Query: GTARM? Re turned String: GTARM <state> GTDLY Set pro file trig ger sam ple de lay TRIG GER Syn tax: GTDLY <val>[units] val: 0.0 to 1.0 sec onds Re marks: Sets the time de lay af ter the dis play trig ger de lay to when the sys tem starts to take read ings and dis play ing them.
  • Page 136 GPIB OPERATION ML24XXA NATIVE COMMANDS Re marks: When the sys tem trig ger in pro file mode is set to ei ther INTA or INTB (in ter nal sen sor A or B) it will trig ger on a power level given by the sen - sor.
  • Page 137 ML24XXA NATIVE COMMANDS GPIB OPERATION Set pro file trig ger type GTTYP TRIG GER Syn tax: GTTYP <type> type: RISE FALL Re marks: When the pro file sys tem trig ger source is set to INTA or INTB (In ter nal A or B) the ML2400A Se ries trig gers on a power level (GTLVL) ris ing or fal ling.
  • Page 138 GPIB OPERATION ML24XXA NATIVE COMMANDS val: Units –99.99 +99.99 dBmV –53.00 147.00 dBmV 7.00 207.00 Watts 50.0 Re marks: Sets the high limit. The HLIMS com mand turns the lim its on and off. It is not nec es sary to en ter the units as the limit value is checked against the dis played value.
  • Page 139 ML24XXA NATIVE COMMANDS GPIB OPERATION Graph hold HOLD CHAN NEL Syn tax: HOLD <state> state: ON or OFF Re marks: This com mand holds the pres ent graph dis played on the screen and is avail able in all graph modes. In Pro file and Power vs. Time modes, this com mand will not work when trig ger source is set to MAN UAL.
  • Page 140 GPIB OPERATION ML24XXA NATIVE COMMANDS Trig ger linking LINK TRIGGER Syn tax: LINK <state> state: ON or OFF Re marks: This will link the trig ger set-up be tween Pro file mode and Read out mode so that the sam ple de lay and the gate width will agree. A change to the trig ger set-up in ei ther Read out or Pro file sys tem set-up will af fect ei ther dis play mode.
  • Page 141 ML24XXA NATIVE COMMANDS GPIB OPERATION 1 or 2 state: ON or OFF Re marks: The LLIMS com mand turns the lim its on and off. Re lated Com mands: LLIM Query: LLIMS? <c> Re turned String: LLIMS <c>,<state> MMRST Min Max Track ing re set CHAN NEL Syn tax: MMRST <c>...
  • Page 142 GPIB OPERATION ML24XXA NATIVE COMMANDS Re marks: Avail able in graph modes only. Out puts in ASCII form the min graph data. The for mat is as fol lows: MNGD <num ber_of_el e ments>,<el e ment_1>,<el e ment_2>,<el e - ment_n>...<\n>...
  • Page 143 ML24XXA NATIVE COMMANDS GPIB OPERATION Autodial en able for lim its fail ure MODLIM SYS TEM Syn tax: MODLIM <state> value: TRUE or FALSE Re marks: When set to TRUE, pro duces an SRQ and autodials the phone num ber (set with MODPH) when a chan nel lim its fail ure oc curs.
  • Page 144 GPIB OPERATION ML24XXA NATIVE COMMANDS Re dial count MODRED SYS TEM Syn tax: MODRED <count> count: 0 to 10 Re marks: Sets the num ber of retrys af ter a fail ure to con nect. The de lay be tween retrys is set us ing MODDEL.
  • Page 145 ML24XXA NATIVE COMMANDS GPIB OPERATION Out put Max Graph Data MXGD DATA OUT PUT Syn tax: MXGD Re marks: Avail able in graph modes only. Out puts in ASCII form the max graph data. The for mat is as fol lows: GD <num ber_of_el e ments>,<el e ment_1>,<el e ment_2>,<el e - ment_n>...<\n>...
  • Page 146 GPIB OPERATION ML24XXA NATIVE COMMANDS Syn tax: OBCH <port>,<c> port: 1 or 2 1 or 2 Re marks: This com mand changes the chan nel rep re sented by BNC out put modes that can take data from ei ther chan nel 1 or 2, such as “An a log Out put” and “Pass/Fail”...
  • Page 147 ML24XXA NATIVE COMMANDS GPIB OPERATION –23 to 94 dBmV 37 to 154 dB m V Re marks: Sets up the start value for the an a log out scale of the dis play. Query: OBDST? <port> Re turned String: OBDST <port>,<units>,<val> OBMD BNC out put mode se lect Syn tax:...
  • Page 148 GPIB OPERATION ML24XXA NATIVE COMMANDS BNC ana log out put stop volt age scale OBVSP Syn tax: OBVSP <port>,<val> port: 1 or 2 val: –5.00 to +5.00 Volts Re marks: Sets up the stop value for the volt age out put in an a log out put mode. At - tempting to set the start value to a volt age greater than the stop value, or the stop value lower than the start value, will re sult in an ex e cu tion er ror.
  • Page 149 ML24XXA NATIVE COMMANDS GPIB OPERATION Clear an off set ta ble OFFCLR SEN SOR Syn tax: OFFCLR <val> val: 1 to 5 Re marks: Sets all the val ues in the ta ble speci fied to 0 dB and 0.00 Hz. Off set fixed value OFF FIX SEN SOR...
  • Page 150 GPIB OPERATION ML24XXA NATIVE COMMANDS NOTE If the fre quency is greater than the max i mum fre quency in the ta ble, the off set value from the max i mum ta ble fre - quency is used. If the fre quency is less than the min i mum fre quency in the ta ble, the off set from the min i mum ta ble fre quency is used.
  • Page 151 ML24XXA NATIVE COMMANDS GPIB OPERATION val: 1 to 5 bytes: number of bytes in the bi nary_data string bi nary_ data: fre quency and dB off set Re marks: This com mand up dates the off set ta ble speci fied by <val>. <bytes> is the number of bytes in the bi nary_data string and <bi nary_data>...
  • Page 152 GPIB OPERATION ML24XXA NATIVE COMMANDS Re marks: Out put the next com plete set of graph data to the GPIB in the long in te - ger form of 1024 bits per dB as a def i nite length ar bi trary block re sponse data.
  • Page 153 ML24XXA NATIVE COMMANDS GPIB OPERATION Output de vice iden ti fi ca tion GPIB 488.2 Syn tax: Re marks: Re turned for mat: <Com pany name>,<model>,<se rial>,<firm ware ver sion> Out put number of chan nel read ings DATA OUT PUT Syn tax: ON <c>,<val>...
  • Page 154 GPIB OPERATION ML24XXA NATIVE COMMANDS Re lated Com mands: GRMD Query: OPMD? Re turned String: OPMD <mode> Peak Crest Hold PCRH SYS TEM Syn tax: PCRH<type> type: TIMED Re marks: Set Peak Crest Hold to Timed or Manual. Query: PCRH? Re turned String: PCRH<type>...
  • Page 155 ML24XXA NATIVE COMMANDS GPIB OPERATION Send de tails to the con nected printer. PRINT SYS TEM Syn tax: PRINT Re marks: The type of print out de pends on the op era tion mode cur rently se lected. In all modes, the print out in cludes a header with the cur rent sen sor set - tings and meas ure ment chan nel set ups.
  • Page 156 GPIB OPERATION ML24XXA NATIVE COMMANDS <state>: If state is FALSE, no data fol lows be cause there are no valid re sults for this sen sor avail able. If state is TRUE, the re sults for the se lected sen sor are dis played in the fol low ing or der: zero value, range 1 up per, range 1 lower, range 2 up per, range 2 lower, range 3 up per, range 3 lower, range 4 up per, range 4 lower, range 5 up -...
  • Page 157 ML24XXA NATIVE COMMANDS GPIB OPERATION Turn RF ref er ence cali bra tor ON or OFF RFCAL CALI BRA TION Syn tax: RFCAL <state> state: ON or OFF Re marks: Turns on or off the RF ref er ence cal i bra tor. Query: RFCAL? Re turned...
  • Page 158 GPIB OPERATION ML24XXA NATIVE COMMANDS EXTCOM SRCSWP Re marks: EXTCOM = Ex ter nal com mu ni ca tion. GPIB com mands are sent and re - ceived via an RS232 con nec tion. SRCSWP = Source sweep. Con nected to a sweeper so up dates to the sweep ers power of fre quen cies etc.
  • Page 159 ML24XXA NATIVE COMMANDS GPIB OPERATION Re turned String: SENMM <s>,<mode> Set Sen sor Set tle Per cent age SENSTL SEN SOR Syn tax: SENSTL <s>,<val> A or B val: 0.01 to 10% Re marks: Sets how long the sys tem waits for the sig nal to set tle. The value pa ram - e ter is only used in DE FAULT mea sure ment sen sor mode.
  • Page 160 GPIB OPERATION ML24XXA NATIVE COMMANDS SRCSPFRQ Source Sweep Stop Frequency SYSTEM Syn tax: SRCSPFRQ <freq_value>[units] freq value: 10 kHz to 122 GHz Re marks: De ter mines the stop fre quency when in fre quency sweep mode. Query: SRCSPFRQ? Re turned String: SRCSPFRQ <frequency>...
  • Page 161 ML24XXA NATIVE COMMANDS GPIB OPERATION SRCSTPWR Source Sweep Start Power SYSTEM Syn tax: SRCSTPWR <power_value> power value: –120 to +30 dB Re marks: De ter mines the start power level of power sweep mode. Query: SRCSTPWR? Re turned String: SRCSTPWR <power> START Ini tial startup self test com mand GPIB SETUP...
  • Page 162 GPIB OPERATION ML24XXA NATIVE COMMANDS '4' = B–A, '5' = A/B, '6' = B/A, '7' = EXT Volts. C = Chan nel 2 in put con fig u ra tion: '0' = OFF, '1' = A, '2' = B, '3' = A–B, '4' = B–A, '5' = A/B, '6' = B/A, '7' = EXT Volts.
  • Page 163 ML24XXA NATIVE COMMANDS GPIB OPERATION U = Sen sor B low level av er age: '0' = OFF, '1' = Low, '2' = Me dium, '3' = High. V = Sen sor A ze roed sta tus: '0' = Not ze roed, '1' = Zeroed. W = Sen sor B Zeroed sta tus: '0' = Not ze roed, '1' = Zeroed.
  • Page 164 GPIB OPERATION ML24XXA NATIVE COMMANDS store number: 1 to 10 data length: num ber of bytes of bi nary data bi nary data: Saved data pre vi ously read from the me ter us ing the SYSRD com mand Re marks: Sets the passed store num ber to the setup con tained in the bi nary data that was ex tracted us ing the SYSRD com mand.
  • Page 165 ML24XXA NATIVE COMMANDS GPIB OPERATION The out put is in the form: SYSRD<ws><#><num_dig its><number num_dig its long>, <bi nary data> <num_dig its> = Num ber of fol low ing dig its giv ing the number of bytes of bi nary data. <number num_dig its long>...
  • Page 166 GPIB OPERATION ML24XXA NATIVE COMMANDS Trig ger hold mode GPIB TRIG GER Syn tax: Re marks: Sets both chan nels to trig ger hold mode. It does not trig ger un til it re - ceives a TR1 or TR2 or GET (group ex ecu tive trig ger), *TRG or TR3 com mand.
  • Page 167 ML24XXA NATIVE COMMANDS GPIB OPERATION Pro file: 'OGBD' com mand re sponse (bi nary graph data for ex am ple) Source Sweep: 'OGBD' com mand re sponse (bi nary graph data for ex am ple) NOTE TR2 in Pro file and Source Sweep mode is not sup ported and will re vert to a TR1 type mea sure ment.
  • Page 168 GPIB OPERATION ML24XXA NATIVE COMMANDS Re turned String: TRGARM <c>,<state> The TRG type com mands re turn the trig ger state of the se lected chan - nel if the chan nel is ON. This de pends on the set tings of the “link trig - gers”...
  • Page 169 ML24XXA NATIVE COMMANDS GPIB OPERATION The TRG type com mands re turn the trig ger state of the se lected chan - nel if the chan nel is ON. This de pends on the set tings of the “link trig - gers”...
  • Page 170 GPIB OPERATION ML24XXA NATIVE COMMANDS Re turned String: TRGMODE <mode> Set trig ger source TRGSRC TRIG GER Syn tax: TRGSRC <c>,<source> 1, 2 or 1&2 source: INTA (in ter nal sen sor A) INTB (in ter nal sen sor B) EXTTTL (ex ter nal BNC TTL trig ger in put) MAN UAL (man ual push but ton trig ger) CONT (con tinu ous)
  • Page 171 ML24XXA NATIVE COMMANDS GPIB OPERATION Re turned String: TRGTYP <c>,<type> The TRG type com mands re turn the trig ger state of the se lected chan - nel if the chan nel is ON. This de pends on the set tings of the “link trig - gers”...
  • Page 172 GPIB OPERATION ML24XXA NATIVE COMMANDS Zero the se lected sen sor ZERO CALI BRA TION Syn tax: ZERO <s> A or B Re marks: Zero out the noise from the se lected sen sor. ML2400A OM 6-85...

  • Page 173: Gpib Emulation Modes

    GPIB OPERATION 6-11 GPIB EMULATION The ML2400 Anritsu power me ter em u lates the GPIB com mu ni ca tion of other MODES power me ters. The em u la tion mode can be set through the front panel SYSTEM|more|more|Rear panel|GPIB|MODE menu (see Chap ter 4, Op er a tion) or through the GPIB com mand EMUL (page 6-89).

  • Page 174: Ml4803A Emulation Commands

    GPIB OPERATION ML4803A EMULATION COMMANDS 6-12 ML4803A This sec tion pro vides an al pha bet i cal list ing of the GPIB com mands (mne mon - EMULATION ics) used to pro gram the Model ML2400A Se ries Power Me ter in ML4803A COMMANDS mode.
  • Page 175 ML4803A EMULATION COMMANDS GPIB OPERATION Out put Re quests There are three com mands to re quest out put from the ML4803A: OPW for a read ing, ODT for the cal fac tor, off set and ref er ence val ues, and OMR for mem - ory store set tings.
  • Page 176 GPIB com mand REF. GPIB em u la tion mode EMUL Syn tax: EMUL <mode> mode: ML24XX (Anritsu ML2400A Se ries na tive mode) HP436A (Hewlett-Packard) HP437B (Hewlett-Packard) HP438A (Hewlett-Packard) ML4803 (Anritsu ML4803A Se ries) Re marks: Set the GPIB em u la tion to em u late other types of power me ters.
  • Page 177 ML4803A EMULATION COMMANDS GPIB OPERATION When se lect ing GPIB em u la tion modes, the in stru ment configures it self to the pre set con di tions of the in stru ment to be em u lated. For ex am ple, when se lect ing HP 438A em u la tion, the front panel menus pass through the pre sets for the HP 437B (which pre sets sen sor A to dBm) then se - lects HP 438A em u la tion (which pre sets sen sor A to Watts).
  • Page 178 GPIB OPERATION ML4803A EMULATION COMMANDS Clears the ref er ence value at the spec i fied mem ory lo ca - tion. Syn tax: MCR<mem> mem: Mem ory lo ca tion 1 to 30. Re marks: Clears the ref er ence value at mem ory store <mem> to 0.0 dBm. Clears all the en tries at the spec i fied mem ory lo ca tion.
  • Page 179 ML4803A EMULATION COMMANDS GPIB OPERATION Set the off set value at the spec i fied mem ory lo ca tion in dBm. Syn tax: MOF<mem><;><value> mem: Mem ory lo ca tion 1 to 30. value: Off set value in dBm. Re marks: Set the off set value at mem ory store ad dress <mem>...
  • Page 180 GPIB OPERATION ML4803A EMULATION COMMANDS Set sen sor off set value Syn tax: OFF<value> value: Off set value to add to the sen sor read ing. Re quest identity Syn tax: Re marks: Re sponse: <ML4803> Out put a mem ory store set of data. Syn tax: OMR<mem>...
  • Page 181 ML4803A EMULATION COMMANDS GPIB OPERATION Re quest for chan nel read ing. Re marks: Out puts measuring con di tion, mea sured data, and sta tus. CR and LF codes are au to mat i cally out put and ex e cuted af ter each line of 22 ASCII char ac ters when the OPW com mand is used.
  • Page 182 GPIB OPERATION ML4803A EMULATION COMMANDS Out put Code Con tents Func tion AUTO RANGE ARG1 high est sen si tiv ity 1 ARG2 ARG3 ARG4 low est sen si tiv ity 5 ARG5 AVE0 AV ER AGE AVE9 HOLD AVE1 1 (1 second in ter val) AVE2 2 (2 sec ond in ter val)
  • Page 183 ML4803A EMULATION COMMANDS GPIB OPERATION As shown in the ex am ples above, the dBm data is out put in fixed ro ta - tion, while the WATT data is out put in sci en tific no ta tion. The ex po nent may be con verted as fol lows: 1.000 m W = 1.000E–6 1.000W = 1.000E–0...
  • Page 184 GPIB OPERATION ML4803A EMULATION COMMANDS Re marks: When SRQ0 is is sued, the SRQ will no long turn off and on with each read ing. The SRQ is set back on by the SRQ1 com mand or by re quest ing data.

  • Page 185: Hp 436A Emulation Commands

    HP 436A EMULATION COMMANDS GPIB OPERATION 6-13 HP 436A EMULATION This section pro vides an al pha beti cal list ing of the com mands (mne - COMMANDS mon ics) used to pro gram the Model ML2400A Se ries Power Me ter when in HP 436A E mu la tion mode.
  • Page 186 Set units to dBm. EMUL Select emu la tion mode Syn tax: EMUL <mode> mode: ML24XX (Anritsu ML2400A Se ries na tive mode) HP436A (Hewlett-Packard) HP437B (Hewlett-Packard) HP438A (Hewlett-Packard) ML4803 (Anritsu ML4803A Se ries) Re marks: Sets the GPIB emu la tion to emu late other types of power me ters. This com mand is avail able in any emu la tion mode, and re sets the whole GPIB in ter face when the emu la tion mode is changed.
  • Page 187 HP 436A EMULATION COMMANDS GPIB OPERATION mand, it re verts back to the trig ger mode it was in be fore the H com mand was sent. Trig ger with out set tling. Re marks: Trig gers a sin gle read ing which is added to the in ter nal digi tal fil ter and the up dated fil ter power level is re turned on the GPIB.
  • Page 188 GPIB OPERATION HP 436A EMULATION COMMANDS Out put For mat The out put data for mat for the HP 436A emu la tion mode is shown be low. Figure 6-7 HP 436A Ou put Data Format Ta ble 6-2 (next page) de scribes the HPIB out put data for mat. ML2400A OM 6-101...
  • Page 189 HP 436A EMULATION COMMANDS GPIB OPERATION Ta ble 6-2 HPIB Out put Data Format Defi ni tion Char ac ter STATUS AS CII Deci mal Meas ured value valid Watts mode un der range Over range Un der range dBm or dB (Rel) mode Power Sen sor Auto Zero loop en abled;...

  • Page 190: Hp 437B Emulation Commands

    GPIB OPERATION HP 437B EMULATION COMMANDS 6-14 HP 437B This section pro vides an al pha beti cal list ing of the com mands (mne - EMULATION mon ics) used to pro gram the Model ML2400A Se ries Power Me ter when COMMANDS in HP 437B E mu la tion mode.
  • Page 191 HP 437B EMULATION COMMANDS GPIB OPERATION Figure 6-8. IEEE 488.2 Stan dard Status Structures *ESE? Re turn Event status reg is ter en able mask Syn tax: *ESE? Re marks: Re turned for mat: <un signed char ac ter> When con verted to an 8- bit bi nary number, this byte yields the bit set - tings of the reg is ter.
  • Page 192 GPIB OPERATION HP 437B EMULATION COMMANDS Re set De vice *RST Syn tax: *RST Re marks: Re sets the ML2400A Se ries to the de fault con fig u ra tion (see Ap pen dix A, Sec tion A-3, or see the HP man ual when in HP 437B em u la tion mode).
  • Page 193 HP 437B EMULATION COMMANDS GPIB OPERATION Re marks: Per forms a self test and re turns 000.' Re lated Com mands: STERR Set SRE mask Syn tax: @1<val> val: 8- bit mask Re marks: Status Byte Struc ture: Bit 0: Data ready Bit 1: Cal/Zero com plete Bit 2: En try Er ror Bit 3: Meas ure ment er ror...
  • Page 194 GPIB OPERATION HP 437B EMULATION COMMANDS Re marks: Same as the *CLS com mand. Re sets all of the GPIB status reg is ters and clears the in put queue. Clear the cal fac tor ta ble Syn tax: CT<ta ble_number> ta ble number: 0 to 9...
  • Page 195 Sets the duty cy cle to be ap plied to the in put sig nal. GPIB emu la tion mode EMUL Syn tax: EMUL <mode> mode: ML24XX (Anritsu ML2400A Se ries na tive mode) HP436A (Hewlett-Packard) HP437B (Hewlett-Packard) 6-108 ML2400A OM...
  • Page 196 GPIB OPERATION HP 437B EMULATION COMMANDS HP438A (Hewlett-Packard) ML4803 (Anritsu ML4803A Se ries) Re marks: Set the GPIB emu la tion to emu late other types of power me ters. This com mand is avail able in any emu la tion mode, and re sets the whole GPIB in ter face when the emu la tion mode is changed.
  • Page 197 HP 437B EMULATION COMMANDS GPIB OPERATION Auto av er age Syn tax: Re marks: Auto matic Fil ter on. Al lows the sys tem to auto mati cally se lect the fil ter used to re duce the jit ter in the dis play. Re lated Com mands: FM, FH...
  • Page 198 GPIB OPERATION HP 437B EMULATION COMMANDS Ex am ple: To set the fre quency of the in put sig nal to 300 MHz: FR300MZ Set group trig ger Syn tax: GT<mode> mode: Re marks: 0 = Ig nore Group Exe cute Trig ger (GET) com mand 1 = Trig ger im me di ate re sponse to ‘GET’...
  • Page 199 HP 437B EMULATION COMMANDS GPIB OPERATION ter mi na tor: Re marks: The cali bra tion fac tor com pen sates for mis match losses and ef fec tive ef - fi ciency over the fre quency range of the power sen sor. Ex am ple: KB99.9% KB99.9PCT...
  • Page 200 GPIB OPERATION HP 437B EMULATION COMMANDS Set lin ear units Syn tax: Re marks: Changes the dis play to lin ear units (Watts). Set cali bra tor state Syn tax: OC<state> state: 0 (OFF) 1 (ON) Re marks: For ex am ple: OC0 (ref er ence cali bra tor state set to OFF). Out put the dis play Syn tax: Re marks:...
  • Page 201 HP 437B EMULATION COMMANDS GPIB OPERATION state: 0 (OFF) 1 (ON) Re marks: For ex am ple: OF1 (Turn off sets ON). Re turn iden ti fi ca tion string Syn tax: Re marks: Re turned for mat: <com pany name>,<model>,<firm ware ver sion> Set off set value Syn tax: OS<val>EN...
  • Page 202 GPIB OPERATION HP 437B EMULATION COMMANDS val: 1 to 10 Re marks: The ML2400A Se ries can store up to 10 in stru ment con figu ra tions for con ven ient re call. The con figu ra tion pa rame ters stored are the same pa - rame ters the ML2400A Se ries stores in its own *SAV and *RCL na tive com mands.
  • Page 203 HP 437B EMULATION COMMANDS GPIB OPERATION Rela tive mode Syn tax: RL<mode> mode: Re marks: Rela tive mode per mits any meas ure ment re sult to be com pared in dB or per cent to a ref er ence value. Rela tive mode can be en abled us ing the cur rent power read ing (RL1) or the pre vi ous ref er ence level (RL2).
  • Page 204 GPIB OPERATION HP 437B EMULATION COMMANDS Re marks: Se lects the cal fac tor ta ble to be used. status mes sage Syn tax: Re marks: Re turns the status mes sage in the for mat: AAaaBBCCccDDddEF GHIJKLM NOP<cr><lf> where: AA: meas ure ment er ror code aa: en try er ror code BB: op er at ing mode...
  • Page 205 HP 437B EMULATION COMMANDS GPIB OPERATION Re marks: Stores the pres ent con figu ra tion to the se lected reg is ter. Ex am ple: To store the cur rent in stru ment con figu ra tion in reg is ter 2: ST2EN Re lated Com mands:...
  • Page 206 GPIB OPERATION HP 437B EMULATION COMMANDS Re marks: Trig gers a new se ries of read ings; enough to up date the in ter nal digi tal fil ter for a noise free read ing at the cur rent power level. The value is then re turned on the GPIB and re turns to TR0 standby mode.

  • Page 207: Hp 438A Emulation Commands

    HP 438A EMULATION COMMANDS GPIB OPERATION 6-15 HP 438A EMULATION This section pro vides an al pha beti cal list ing of the GPIB com mands COMMANDS (mne mon ics) used to pro gram the Model ML2400A Se ries Power Me ter when in HP 438A E mu la tion mode.
  • Page 208 GPIB OPERATION HP 438A EMULATION COMMANDS Re marks: Dis play the In put A read ing mi nus the In put B read ing. Set sin gle sen sor A dis play Syn tax: Re marks: Set the dis play to out put In put A read ings. Set dis play A / B Syn tax: Re marks:...
  • Page 209 HP 438A EMULATION COMMANDS GPIB OPERATION ter mi na tor: Re marks: Same as the ML24XXA (na tive) CFADJ com mand. Sets a cali bra tion fac - tor to be used when per form ing a 0 dBm cali bra tion. Ex am ples: CL98.5EN CL98.5%...
  • Page 210 13. EMUL GPIB emu la tion mode Syn tax: EMUL <mode> mode: ML24XX (Anritsu ML2400A Se ries na tive mode) HP436A (Hewlett-Packard) HP437B (Hewlett-Packard) HP438A (Hewlett-Packard) ML4803 (Anritsu ML4803A Se ries) Re marks: Set the GPIB emu la tion to emu late other types of power me ters.
  • Page 211 HP 438A EMULATION COMMANDS GPIB OPERATION Re marks: Hold fil ter sets the fil ter mode to Man ual from Auto, but re tains the auto fil ter set ting. This func tion is the same as the AVGM com mand. Re lated Com mands: FM, FH, FA...
  • Page 212 GPIB OPERATION HP 438A EMULATION COMMANDS Re marks: The cali bra tion fac tor com pen sates for mis match losses and ef fec tive ef - fi ciency over the fre quency range of the power sen sor. Ex am ples: KB99.9% KB99.9PCT KB99.9EN...
  • Page 213 HP 438A EMULATION COMMANDS GPIB OPERATION Set lin ear units Syn tax: Re marks: Changes the dis play to lin ear units (Watts). Set cali bra tor state Syn tax: OC<state> state: 0 (OFF) 1 (ON) Re marks: For ex am ple: OC0 (ref er ence cali bra tor state set to OFF). HP Iden tity re quest Syn tax: Re marks:...
  • Page 214 GPIB OPERATION HP 438A EMULATION COMMANDS Ref er ence Os cil la tor = Off Ac tive en try chan nel = A Meas ure ment units = Watts REL mode = off Meas ure ment pa rame ters (set for Sen sor A and Sen sor B): Cal Fac tor = 100.0% Cal Adj = 100.0% Off set = 0.00 dB...
  • Page 215 HP 438A EMULATION COMMANDS GPIB OPERATION mode: Re marks: Rela tive mode per mits any meas ure ment re sult to be com pared in dB or per cent to a ref er ence value. Rela tive mode can be en abled us ing the cur rent power read ing (RL1) or the pre vi ous ref er ence level (RL2).
  • Page 216 GPIB OPERATION HP 438A EMULATION COMMANDS CC: sen sor A range cc: sen sor B range DD: sen sor A fil ter dd: sen sor B fil ter E: meas ure ment units F: ac tive en try chan nel G: OSC status H: REL mode status I: trig ger mode...
  • Page 217 HP 438A EMULATION COMMANDS GPIB OPERATION Re marks: Trig gers a sin gle read ing which is added to the in ter nal digi tal fil ter and the up dated fil ter power level is re turned on the GPIB. Af ter a TR1 com - mand, the in stru ment re turns to TR0 standby mode.

  • Page 218: Programming Examples

    GPIB OPERATION PROGRAMMING EXAMPLES 6-16 PROGRAMMING The fol low ing pro gram ming ex am ples are pro vided as a gen eral guide line on EXAMPLES how to pro gram the ML2400A Se ries Power Me ters us ing GPIB com mands. All ex am ples are writ ten in Vis ual Ba sic or C lan guage.
  • Page 219 PROGRAMMING EXAMPLES GPIB OPERATION Get Graph Data Func tion GetGraphData () ‘ func tion as sumes that you have the graph dis play ‘ setup and that there is a global ar ray called ‘ Graph_Data(). ‘ make space for the re sult Dim re sult As String re sult = String$(2048, 0) ‘...
  • Page 220 GPIB OPERATION PROGRAMMING EXAMPLES Sta tus This func tion dem on strates how to use the Sta tus Reg is ters to pro vide syn - Reg is ter chro ni za tion. Con trol Uses the TR2 (trig ger with set tling) com mand to make a read ing. Func tion Get TR2Read ing (chan nel) As Sin gle ‘...
  • Page 221 PROGRAMMING EXAMPLES GPIB OPERATION 488.2 This func tion uses the sta tus reg is ters to syn chro nize the GPIB com mands Gen eral Send/ and re turn data if a query com mand was used. The sys tem waits un til the Re ceive Sys tem com mand string has been com pleted and then checks to see if any data is on the GPIB out put buffer.
  • Page 222 GPIB OPERATION PROGRAMMING EXAMPLES ‘ Now check if any thing has gone wrong. If (Val(ESB) And CMD_ERR_bit) Then 4882SendReceive = Com mand_Er ror ElseIf (Val(ESB) And EXEC_ERR_bit) Then 4882SendReceive= Ex e cu tion_Er ror ElseIf (Val(ESB) And DE VICE_ERR_bit) Then 4882SendReceive = De vice_de pend ent_Er ror End If End Func tion...
  • Page 223 PROGRAMMING EXAMPLES GPIB OPERATION Bi nary Out put The fol low ing pro gram ex am ple may be used to de code the three types of bi - Mes sage De coding nary out put mes sages. The com mands that ref er ence this code ex am ple are OGBD, MXGDB and MNGDB for the GRAPH_BINARY_DATA de cod ing;...
  • Page 224 GPIB OPERATION PROGRAMMING EXAMPLES /* Read and cast the data */ while (count < length) real_data1[loop++] = ((float)(*bin_value++))/1024.0; count += 4; real1_entries = loop; else if (decode_type == OFFSET_TABLE_BINARY_DATA) /* Decode header */ /* Find # character. */ cptr = strtok(&buffer[0],"#"); cptr = strtok(NULL,"#");...
  • Page 225 PROGRAMMING EXAMPLES GPIB OPERATION 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] = NULL; length = atoi(ch_val); /* Point after the comma */ cptr = &buffer[9]; /* Read the table identity */ count = 8;...

  • Page 226: Ap Pen Dix A Speci Fi Ca Tions

    Ap pen dix A Speci fi ca tions This ap pen dix pro vides sys tem speci fi ca tions for the ML2400A Se ries INTRODUCTION Power Me ters along with list ings of sys tem de faults and er ror messages.

  • Page 227: System Specifications

    SYSTEM SPECIFICATIONS APPENDIX A In stru men t Ac cu racy: < 0.5 % Zero Set and < 0.5 % MA2420A; < 0.5 % MA2470A Se ries and Drift: MA2440A Se ries. Per cent of full scale in most sen si - tive range, meas ured over one hour with maxi mum av er ag ing af ter one hour warm up at con stant tem - pera ture.
  • Page 228 APPENDIX A SYSTEM SPECIFICATIONS Limit Lines: Fixed value high and low lim its with audi ble, rear panel TTL out put, and/or visi ble Pass/Fail alarm in - di ca tion. Fail ure in di ca tion can be set to latch un til cleared so that a tran sient fail ure can be eas ily no - ticed.
  • Page 229 SYSTEM SPECIFICATIONS APPENDIX A Se cure Mode: Erases mem ory in for ma tion upon power ON. De fault con di tion is Se cure Mode OFF. Rear Panel In puts/Out puts Cal Fac tor Op er at ing Modes: Volt age Volt age: Dis play volt age read ing on se lected chan nel.
  • Page 230 APPENDIX A SYSTEM SPECIFICATIONS Gen eral Speci fi ca tions Gen eral: MIL- T28800E, Type 3, class 5, Style E Dis play: Flat panel mono chrome LCD graphic with back light. Op er at ing Tem pera ture Range: 0 to 50° C Stor age Tem pera ture –40 to +70°...

  • Page 231: System Defaults

    SYSTEM DEFAULTS APPENDIX A SYSTEM DEFAULTS The fol low ing de fault pa rame ters are loaded when ever pre set is se - lected from the front panel or through GPIB. SEN SOR - setup set tle % per read ing 0.10% meas ure ment mode de fault...
  • Page 232 APPENDIX A SYSTEM DEFAULTS off set type = ta ble ta ble number fre quen cies 0 Hz off set val ues 0 dB SEN SOR - duty cy cle duty cy cle state duty cy cle 100% CHAN NEL - setup in put con fig chan 1 = A, chan 2 = off in put con fig ( HP 437B &...
  • Page 233 SYSTEM DEFAULTS APPENDIX A source = ex ter nal TTL trig ger edge rise SYS TEM - setup = pro file TRIG GER - setup source con tinu ous sam ple de lay 1 ms sam ple gate width 20 ms source = con tinu ous, man ual trig ger arm ing blank ing off...
  • Page 234 APPENDIX A SYSTEM DEFAULTS mode = pro file, power vs time, source sweep SYS TEM - con trol scale top dB value 20 dB scale bot tom dB value –50 dB read out link cur sor hold SYS TEM - display bat tery back light dis play con trast peak me ter dis play...
  • Page 235 SYSTEM DEFAULTS APPENDIX A mode = pass/fail chan nel pass level high out put 1 only mode = AC MOD out put out put po lar ity posi tive output 2 only mode = RF blank ing chan nel out put TTL dur ing zero high in put 1 blank ing active TTL level...

  • Page 236: System Error Messages

    In most cases, the er ror con di tion can be eas ily cor rected. If not, note the er ror mes sage and con tact the near est Anritsu Serv ice Cen ter (see Chap ter 2, Ta ble 2-3).
  • Page 237 SYSTEM ERROR MESSAGES APPENDIX A Er ror Message Meaning SENSOR A not fit ted Sensor A is required for the cur rent meas ure ment, but is not fitted. READ ING SEN SOR A data as per message SENSOR B not fit ted Sen sor B is required for the cur rent meas ure ment, but is not fitted.

  • Page 238: Ap Pen Dix Bgpib Quick Ref Er Ence

    Ap pen dix B GPIB Quick Ref er ence This ap pen dix con tains quick ref er ence ta bles for all sup ported com - INTRODUCTION mands. Na tive mode com mands are sorted by func tional group. For de - tailed com mand ex pla na tions, ref er to the page ref er ences listed.
  • Page 239 ML24XXA QUICK REFERENCE APPENDIX B Ta ble B-3. Chan nel Func tional Group Com mands Com mand Func tion Page CDMEAS(?) Chan nel CDMA measurement 6-21 CHCFG(?) Chan nel in put con fig u ra tion 6-28 CHRES(?) Set chan nel deci mal point reso lu tion 6-29 CHUNIT(?) Set Chan nel units...
  • Page 240 APPENDIX B ML24XXA QUICK REFERENCE Ta ble B-6. GPIB 488.2 Func tional Group Com mands Com mand Func tion Page *CLS Clear GPIB status bytes 6-12 *ESE Event Status Byte en able 6-7, 6-12, 6-103 *ESE? Re turn Event status reg is ter en able mask 6-14 *ESR? Event status reg is ter re quest...
  • Page 241 ML24XXA QUICK REFERENCE APPENDIX B Ta ble B-9. Pro file Setup Func tional Group Com mands Com mand Func tion Page CURLK(?) Link cur sors in pro file mode 6-30 DTRGD(?) Dis play Trig ger De lay 6-35 GRAVG(?) Av er age be tween pro file cur sors 6-41 GPRST Re set min/max graph...
  • Page 242 APPENDIX B ML24XXA QUICK REFERENCE Com mand Func tion Page OFFCLR Clear an off set ta ble 6-62 OFFFIX(?) Off set fixed value 6-62 OFFTBL(?) Se lect an off set ta ble 6-62 OFFTBR Out put an off set ta ble 6-63 OFFTBU Up date an off set ta ble...

  • Page 243: Ml24Xxa Quick Reference

    ML24XXA QUICK REFERENCE APPENDIX B SRCSPFRQ(?) Source sweep stop frequency 6-73 SRCSTPWR(?) Source sweep start power 6-74 SRCSPPWR(?) Source sweep stop power 6-73 SRCSTAT Source sweep status request 6-73 SYSLNM Saved set naming 6-77 TEXT(?) User text command 6-78 TEXTS(?) User text dis play command 6-78 Ta ble B-12.
  • Page 244 APPENDIX B ML24XXA QUICK REFERENCE Query Re turned String Page CVSPV? <S> CVSPV <S>,<VAL> 6-31 CVSTF? <S> CVSTF <S>,<VAL> 6-31 CVSTV? <S> CVSTV <S>,<VAL> 6-32 DBLGHT? DBLGHT <MODE> 6-32 DBLTIM? DBLTIM <VAL> 6-32 DCONT? DCONT <VAL> 6-33 DISP? DISP <STATE> 6-33 DPEAK? DPEAK <MODE>...
  • Page 245 ML24XXA QUICK REFERENCE APPENDIX B Query Re turned String Page MODRED? MODRED <count> 6-57 MODRNG? MODRNG <true> or <false> 6-57 OBACM? OBACM <PO LAR ITY> 6-58 OBCH? <PORT> OBCH <PORT>,<C> 6-58 OBDSP? <PORT> OBDSP <PORT>,<UNITS>,<VAL> 6-45 OBDST? <PORT> OBDST <PORT>,<UNITS>,<VAL> 6-59 OBMD? <PORT>...

  • Page 246: Ml4803A Quick Ref Er Ence

    APPENDIX B ML4803A QUICK REFERENCE ML4803A QUICK The fol low ing ta bles ref er ence ML4803A emulation mode com mands. REFERENCE Ta ble B-14. ML4803A Em u la tion Mode Com mands Com mand Func tion Page Sen sor av er ag ing setting 6-88 Set the user cal fac tor value 6-65...

  • Page 247: Hp 436A Quick Ref Er Ence

    HP 436A QUICK REFERENCE APPENDIX B HP 436A QUICK The fol low ing ta ble ref er ences HP 436A emulation mode com mands. REFERENCE Ta ble B-15. HP 436A Emulation Mode Com mands Com mand Func tion Page Disable cal factors 6-98 –...
  • Page 248 APPENDIX B HP 437B QUICK REFERENCE HP 437B QUICK The fol low ing ta ble ref er ences HP 437B emulation mode com mands. REFERENCE Ta ble B-16. HP 437B Emu la tion Com mands Com mand Func tion Page *CLS Clear GPIB status bytes 6-12, 6-103...
  • Page 249 HP 437B QUICK REFERENCE APPENDIX B Com mand Func tion Page Set group trig ger 6-111, 6-124 Re turn iden ti fi ca tion string 6-111 IDN? HP437 iden tity re quest 6-111 Cali bra tion fac tor 6-111, 6-124 Set log units 6-112, 6-125...

  • Page 250: Hp 437B Quick Reference

    APPENDIX B HP 437B QUICK REFERENCE Com mand Func tion Page Trig ger im me di ate 6-79, 6-118, 6-129 Trig ger with a set tling de lay 6-79, 6-118, 6-130 Trig ger free run 6-80, 6-119, 6-130 Zero sen sors 6-119, 6-130 ML2400A OM...
  • Page 251 HP 438A QUICK REFERENCE APPENDIX B HP 438A QUICK The fol low ing ta ble ref er ences HP 438A emu la tion mode com mands. REFERENCE Ta ble B-17. HP 438A Emu la tion Com mands Com mand Func tion Page Re turn ID string 6-120...

  • Page 252: Hp 438A Quick Reference

    APPENDIX B HP 438A QUICK REFERENCE Com mand Func tion Page Identification 6-66, 6-100, 6-114, 6-126 Set off set value 6-114, 6-126 Pre set the unit 6-114, 6-126 Auto Range 6-114, 6-127 Re call setup 6-114, 6-127 Range hold 6-115, 6-127 Rela tive mode 6-116,...

  • Page 253: Hp-Ib Support

    The fol low ing ta bles list HP- IB com mands for the HP 437B and HP 438A power me ters, and which com mands are sup ported in the Anritsu ML2400A Se ries power me ter. Re stric tions, if any, are also listed. Com - mands that are not sup ported will be ig nored.
  • Page 254 APPENDIX B HP-IB SUPPORT Mne monic Mne monic Mne monic Ac tion Ac tion Ac tion Sup ported? Sup ported? Sup ported? Re stric tions Re stric tions Re stric tions Limit check on Both high and low on as HP 437B Units to Watts None Learn mode1...
  • Page 255 HP-IB SUPPORT APPENDIX B Mne monic Ac tion Sup ported? Re stric tions Con fig to A-B None Se lect sen sor A None Con fig to A None Con fig A/B None Con fig to B-A None Se lect sen sor B None Con fig to B None...
  • Page 256 APPENDIX B HP-IB SUPPORT Mne monic Ac tion Sup ported? Re stric tions GPIB trig ger hold None Im me di ate trigger None Set tled trigger None Trig ger hold off None Status mask None Re turn ID string None NOTES The Fac tory cal fac tor ta ble can be read by send ing an ‘F’...

  • Page 257: Ap Pen Dix C Menu Maps

    Ap pen dix C Menu Maps INTRODUCTION The ML2400A Se ries Power Me ter is driven by five main menus; Sen sor, Chan - nel, Trig ger, Sys tem, and Cal/Zero, each ac cessed by a key on the front panel. This ap pen dix con tains menu list ings rep re sent ing the lev els of the avail able menus.
  • Page 258 SENSOR MENU APPENDIX C Fre quency | man ual | vghz SETUP } if source = VGHz only [CVSTF] START Freq 10kHz to 122GHz [CVSPF] STOP Freq 10kHz to 122GHz [CVSTV] START Volts -0.5V to 20.5V [CVSPV] STOP Volts -0.5V to 20.5V [CFFRQ] In put sig nal FREQuency } if source = FREQ or MAN UAL...
  • Page 259 APPENDIX C SENSOR MENU FACTOR 150% to 0.07% –1.76dB to 31.55dB DONE DE LETE [CFUSAV] SAVE to sen sor [CFUCT] CLEAR ta ble [CFUPT] PRESET ta ble [CFUID] IDEN TITY up to 7 char ac ters << >> SE LECT ENTER exit when val ues changed but NOT saved to sen sor DIS CARD...
  • Page 260 SENSOR MENU APPENDIX C Auto | mov ing | re peat | off [AVG] Av er aging NUMBER } if mode = MOVING or RE PEAT 1 to 512 [AVGLL] Auto LOW LEVEL av er ag ing Off \ low \ me dium \ high Av er aging ( pro file and source sweep modes ) [AVG, GSWP] Sen sor A av er age NUMBER...
  • Page 261 APPENDIX C SENSOR MENU 1 to 200 [OFFCLR] CLEAR se lected ta ble } if type = TA BLE Duty cy cle SEN SOR } not in ML2407A A | B [DUTYS] Duty cy cle STATE On | off [DUTY] DUTY cy cle 100% to 0.1% [RGH]...

  • Page 262: Channel Menu

    CHANNEL MENU APPENDIX C The Chan nel menu con trols the op er a tion of a dis play chan nel. There are two CHANNEL MENU dis play chan nels, Chan nel 1 and Chan nel 2. Chan nel 1 ap pears at the top of the read out dis play and chan nel 2 at the bot tom.
  • Page 263 APPENDIX C CHANNEL MENU [LLIM] LOW Limit -99.99dB to +99.99dB 7dBuV to 207dBuV -53dBmV to 147dBmV 0 to 50W [HLIMS] HIGH State On | off [LLIMS] LOW State On | off [FHOLD] Fail in di ca tor HOLD On | off [FBEEP] Fail BEEP con trol On | off...

  • Page 264: Trigger Menu

    TRIGGER MENU APPENDIX C The Trig ger menus are al ways avail able in PROFILE op er a tion mode, as se - TRIGGER MENU lected from the Sys tem menu. In READOUT and POWER vs. TIME modes, the trig ger setup menus are avail able if a sen sor used on a dis play chan nel has its SENSOR|Setup|MODE set to CUSTOM .
  • Page 265 APPENDIX C TRIGGER MENU ML2400A OM...

  • Page 266: System Menu

    SYSTEM MENU APPENDIX C The Sys tem menus con trol the op er at ing modes, dis play vis i bil ity, sound, rear SYSTEM MENU panel func tions, and bat tery state of the ML2400A Se ries Power Me ter. Note that the soft keys will ap pear dif fer ently de pend ing upon the op er a tion mode se lected with the Setup soft key.
  • Page 267 APPENDIX C SYSTEM MENU [PCRST] Peak/Crest RE SET } if Chan nel|Setup|Read out mode=CDMA Pro file } if sys tem setup mode = Pro file [GRMD] CHAN NEL 1 | 2 [GRPRD] Data col lec tion PE RIOD 100ns to 7 sec onds [DTRGD] Dis play trig ger DE LAY 0 to 7 sec onds...
  • Page 268 SYSTEM MENU APPENDIX C SWAP [CUR] CUR SOR LEFT [CUR] CUR SOR RIGHT [GRAUTO] SCALE [GRYT] -150.00 dB to +250.00 dB } Units are dBmV or dB m V if } dis play chan nel units are dBmV [GRYB] BOT TOM } or dB m V re spec tively.
  • Page 269 APPENDIX C SYSTEM MENU On | off [FBEEP] LIMIT fail beep on chan nel 1 On | off [FBEEP] LIMIT fail beep on chan nel 2 On | off CUR SOR out of screen beep On | off [PRINT] Print Bat tery [BAUTS] AUTO power off...
  • Page 270 SYSTEM MENU APPENDIX C 1 to 10 [MODINIT] INI Tial ize mo dem AUTODIAL setup [MODLIM] LIMITS fail True | false [MODRNG] RANGE fail True | false [MODPWR] POWER on/off True | false BNC setup PORT Out put 1, out put 2, in put 1, in put 2 [OBMD] Op er ating MODE only if port = out put 1 or out put 2...
  • Page 271 APPENDIX C SYSTEM MENU [OBCH] CHAN NEL 1 | 2 [OBPL] PASS TTL LEVEL High | low if mode = AC Mod Out put and port = out put 1 ACModOUTPUT [OBACM] PO LAR ITY Pos i tive | neg a tive if mode = RF BLANKING and port = out put 2 [OBCH] CHAN NEL...

  • Page 272: Cal/Zero Menu

    CAL/ZERO MENU APPENDIX C The Cal/Zero menu es tab lishes the 0.0 dBm ref er ence cal i bra tion and ze ro ing CAL/ZERO MENU of the sen sors. Re fer to Chap ter 5 for spe cific pro ce dures. NOTE The sin gle sen sor chan nel ML2407A will not dis play the Sen sor B se lec tion op tion shown be low.
  • Page 273 In dex HP 438A Em u la tion ..6-120 - 6-130 ML24XXA (na tive) mode..6-12 - 6-85 AC ..... 2-1, 3-3, 4-2 ML4803 Em u la tion .
  • Page 274 front panel lo cal lock out ....5-4, 6-6 con trols ....4-1 - 4-2 Low Level Av er aging .
  • Page 275 ship ment ....2-10 - 2-11 Sound ..... . . 4-29 rack mount .

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