Manual do usuário Agilent Technologies 70820A

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HP References in this Manual

This manual may contain references to HP or Hewlett-Packard. Please note that Hewlett-
Packard's former test and measurement, semiconductor products and chemical analysis
businesses are now part of Agilent Technologies. We have made no changes to this
manual copy. The HP XXXX referred to in this document is now the Agilent XXXX.
For example, model number HP8648A is now model numb

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Quick Start Guide HP 71500A and HP 70820A Micro w a v e Transition Analyzer ABCDE HP P art No. 70820-90047 Printed in USA No v ember 1992 Edition B.0.0

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Notice The information con tained in this do cumen t s i s ub ject to c hange without notice. Hewlett-P k ard m ak w arran t yof an y k ind ithw regard to this material, including, but not imited l to, the implied w arran ties of merc y tabilit a nd tness for a particular purp ose. Hewlett-P ac k shall not b e iable l for rrors e on c tained herein or for i nciden tal or consequen tial damages in onnection c with the furnishing, p rformance, e or use of his t material. Restricted ts Righ Legend

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General S afety Considerations Befor e t his i nstrument is switche don , mak e sure i t h as been roperlyp W ARNING grounded through the p rotectiv e c onductor of the c a po w er cable to a sock et outlet rop vided with protectiv e earth contact. Any i nterruption of the protectiv e (grounding) conductor, inside or outside the instrument, or disconnection of the protectiv eeahtr terminal can result in personal injury . There a re many points in the instrument which c an, if c ontacted, cause W

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This uic q k tarts guide on c t w o utorialst hat t i n tro uce d y HP 71500A the w icro m a v e ransition t analyzer. Y ou’ll need ab out 20 min utes to Micro w a v e complete he t steps. After ompleting c the utorial,t refer to the Transition 71500A and HP 70820A User’s Guide for a complete discussion of pro duct eatures. f Analyzer - A t A Glance Wh y re a there t w o utorialst F or um optim p erformance as a ulus-resp stim onse test system, y our w icro m a v e ransition t analyzer is design

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The INST PRESET key (instrumen t preset k ey) sets micro w a v e transition analyzer a preset condition. The Input 1 Conne ctor is one of the t w o inputs to the HP 71500A. The menu softkeys allo w access t w o pages of T o access second press the b y e softk . The lower-level softkeys e users a wide range c hoices most men us. The numeric al keyp ad and knob used to man ually en data. The custom keyp ad supplies quic k access to common instrumen t functions. h of these functions be accessed sin

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In the text f o his t uic q k start guide, bo xed letters i ndicate n ormal ron f t-panel k eys. NNNNNNNNNNNNNNNNNNNN shadow letters ndicate i eys. softk vi

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1 Quick Start G uide Con ten ts T utorial 1. Using a Congured System Step 1. Displa y a uous w a v e s ::: ::::: : :::: ::::: : :: 9 Step 2. Sa v e a trace : ::::: ::::: ::::: ::::: ::::: ::::: ::::: :::: 10 Step 3. Use he t noise lter :::: ::::: ::::: ::::: ::::: :::: : :::: : 10 Step 4. Use he t mark m u : ::::: ::::: : :::: ::::: ::::: : ::: 10 Step 5. Recall a trace ::::: ::::: ::::: ::::: : :::: ::::: ::::: :::: 11 Step 6. Displa y a pulsed RF signal :::: ::::: ::::: : :::: ::::: : : 11 S

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P erform the tasks in this tutorial n i he t order giv o Tutorial 1. of sequence ma y r equire extra steps. The time needed to nish all o f Using a Configured these tasks si usually less than 20 min utes. System Cable connections in a configured system. 1-2 Quick Start Guide ut them Doing en.

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1. Connect a cable b t e w y our signal source output and the input Step 1. Display a to the w micro a v e ransition t analyzer’s RF I NPUT . 1 continuous w a v e signal 2. Connect a ablec b t e w een he t rear-panel MOD OUTPUT f o the HP 70820A mo dule and the signal source’s pulse mo dulation input. 3. Press INSTR PRESET . NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNN 4. Press RF out ON|OFF un til ON is underlined. Y ou should on wha v ea onc uous w a v e CW) ( signal on the creen. s

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NNNNNNNNNNNNNNNNNNNN 1. Press Traces t T races men u. Step 2. Sa v e a trace 2. Press he t follo wing ys: e softk NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN store trace NNNNNNNNNNNNNNNNNNNNNNN TO MEM1 This a s v es the trace on the screen in memory blo c kn um ber 1. NNNNNNNNNNNNNN 1. Press Main ter he t Main men u. Step 3. Use the noise NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNN filter 2. Press noisflt ON|OFF un ON is underlined. This lters the noise o n t he signal. NNNNNNNNNNNNNNNNNNNNN

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6. Get n i M m ub y p ressing the ollo f wing eys: softk NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN page 2 fo 2 NNNNNNNNNNNNNN Main NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNN 7. Press RF out ON|OFF un til ON is underlined. The signal should lo ok similar t o he t follo wing gure. The top t race (T r1) s ho ws the eal r input data. The burst of RF is used only for b t r3) sho ws the d emo ulatedd signal from the nputi at c hannel 1. Quick Start Guide 1-5 (T race ottom The eect. visual en ain t

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1. Get in S ub y ressingp the follo wing e ys: softk Step 7. Store internal NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN settings states)( page 1 of 2 NNNNNNNNNNNNNNNNNNNN States 2. Press he t follo wing ys: e softk NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN save state NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SAVE STATE 1 The instrumen twlli sa v e he t state in memory v e p o w W e ill w recall this state later. NNNNNNNNNNNNNNNNNNNNNNN 1. Get in P m ub y pressing Pulsgen . Step 8. Use the automatic 2. Press he t fo

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1. Press the ollo f wing eys: s oftk Step 9. Remo v ethe NN NN N N N N N N N N N N N N N N N N N N N NN NN N N N N N N N N N N N N N N N automatic update: SINGLE measurements table N N N N N N NN NN N OFF from the screen 2. Get the Mark ers u b y pressing the wing softk N N N N N N N N N N N N N N N N N NN N N N N N N N N N N N N N N N N page 2 of 2 NN N N N N N N N N N N N N N N N N N N N N N Markers N N N N N N N N NN N N N N N N N N N N N N N N N N N N N N N N N NN 3. Press MARKERS OFF . Y ha

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4. Change the c hannel of measuremen tto c 1 b y pressing the follo wing eys: softk N N N N N NN NN NN NN N N N N N N N N N N N N N N N N N NN NN N page 1 of 2 N N N N N N N N N N N N N N N N N N N Measure N N N N N N NN NN N N N N N N N N N N N N N N N N N N N N N NN MsrTrc: TR3 N N N N N N N N N N N TR1 5. Separate the RF from video feedthrough and isplad y the b y p ressing wing softk eys: N N N N N N N N NN NN N N N N N N N N N N N N N N N N N N N N N page 2 of 2 N NN N N N N N N N N N N N N

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NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN AUTO-SCALE The follo wing gure as h an example of what y ou migh t exp ect to nd on the screen for his t signal s ource r o another of its qualit y . 7. T e an utomatic a p eak-to-p eak measuremen t of he t video feedthrough b y ressing p he t follo ingw eys: softk NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN page 1 fo 2 NNNNNNNNNNNNNNNNNNNNNNN Measure NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN more 1 of 3 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN more 2 of 3 NNNNNNNNNNNNNNNNN PK-PK

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1. Press he t follo wing k eys to c t p re Step 12. Measure the the screen: risetime of an RF pulse NNNNNNNNNNNNNNNNNNNNNNN SEC/DIV 2 NNNNNNNN ns NNNNNNNNNNNNNNNNN 2. If necessary , p ress delay and adjust the dela ywiht eht fron t-panel knob un til t he leading edge of the ulsep is displa y 3. Get ni to the easure M en m ub y ressingp the follo ing w ys:e softk NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN page 1 fo 2 NNNNNNNNNNNNNNNNNNNNNNN Measure 4. Press he t follo wing ys e softk to c hange the

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NNNNNNNNNNNNNNNNNNNN 1. Press States to access the tatesS men Step 13. Measure he t falltime fo na FR pulse 2. Press the ollo f wing eys s oftk to get he t RF pulse that y v ed states for arlier,e bac k o n the screen: NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN recall state NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN RECALL STATE 1 3. Adjust d ela yb y pressing the ollof wing k eys: NNNNNNNNNNNNNNNNN DELAY 1 NNNNNNNN us 4. Adjust the time p er division sho wn on the s creen b y p follo wing k e

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6. Press he t follo wing ys e softk to mak e trace 3 he t trace o t b e measured: NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN Msr Trc: TR1 NNNNNNNNNNN TR3 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNN 7. Press more 1 of 3 and hen t FALLTIME . ote N he t automatic measuremen ts that app ar e at the top of the screen. P erform the tasks in this tutorial n i he t order giv o Tutorial 2. Using na of sequence ma y r equire extra steps. The time needed to nish all o f Unconfigured these t

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NNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNN 1. Press Config , RF Source , RF src: , and then NONE Step 1. Measure y our source s i uncongured. frequency and po w er 2. Connect the scillator o under test to the c hannel 1 input as sho wn belo 3. Set oscillator frequency G i output p o w er lev el to dBm . T urn p o w er on. 4. Press INSTR PRESET . N N N N N N N N N N N N N N N N N N N NN N N N N N N N N N N N N N N 5. Press more 1 of 2 . N N N