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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 Con gured 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 e ect. 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 uncon gured. 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
