Fluke 271 manual VALS=ABS AUTO=YES STEP=01 ACTIVE LENGTH=0256 LEVEL=+000

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271

Getting Started Manual

The second screen appears:	by changing the amplitude to 1.0 V peak into 50 Ω and the
	frequency to 15.625 kHz (or the period to 64 µs).

VALS=ABS AUTO=YES

STEP=01 ACTIVE

LENGTH=0256

LEVEL=+000

Continue entering the pairs of length and level values in the table until the last step (08).

This is the final screen in which the length and level have been keyed in, immediately before the final press of the ENTER key:

To initiate the signal, turn the output on and press the STAIR key.

VALS=ABS AUTO=YES

STEP=08 ACTIVE

LENGTH=0005

LEVEL=+153

The remaining steps (9 to 15 inclusive) are all inactive. Press ESCAPE to complete this part of the set-up. You should see a brief display indicating that the instrument is making some calculations on the new waveform.

When the calculations are complete the display will return to the main menu, on which you can complete the set-up

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Contents Getting Started Manual Programmable 10 MHz DDS Function GeneratorLIMITED WARRANTY AND LIMITATION OF LIABILITY To register your product online, visit register.fluke.comSafety Getting Started Manual Safety continued The following symbols are used on the instrument and in this manualTerminal connected to chassis ground Mains supply OFF Mains supply ON Alternating current Warning - hazardous voltages may be presentPage Immunity EMC ComplianceEmissions e EN61000-4-5 1995 Surge 0.5 kV line to line, 1 kV line to ground Table of Contents Titleviii AUX OUTGetting Started IntroductionBefore You Start Mains Supply VoltageExternally Applied Voltages Controls and Connections Getting StartedFigure 1. Model 271 Front Panel shx0001f.gifFunction Keys The Liquid Crystal DisplayControls FIELD and DIGIT Keys and the Rotary Control Numeric, Units and SET Keys MODE Keys UTILITIES KeysOUTPUT Key RECALL and REMOTEFront Panel Inputs and Outputs EXT TRIGMAIN OUT AUX OUTRear Panel Connectors CLOCK IN/OUTVCA IN SYNC OUTRS232 and GPIB Interface Connectors TRIG/SWEEP OUTUsing the Instrument Plug in and switch on the instrumentStarting up Check the LCD DisplayGenerating Continuous Signals Set a frequency, for example 12.5 kHzFREQ=12.50000kHz VhiZ=+20.0 Vpp 50Ω DC=+0.00mV +0.00mV SYM=50.0% 50.0%Set the amplitude to +10 dBm Have a look at some other waveformsChange the dc offset =80.00000usPER =80.00000us VhiZ=+4.00 Vpp 50Ω DC=+1.50 V +151.mV SYM=50.0% 50.0% Effect of the output attenuatorDC OFFSET CHANGE * * BY OUTPUT LEVEL Adjusting the phase SOURCE=EXT TGEN=1.00ms 1.000kHz BURST COUNT= PHASE=+000 +000SOURCE=EXT TGEN=1.00ms 1.000kHz BURST COUNT= PHASE=+116 +116 Asymmetric waveformsGenerating Swept Signals TRIG/SWEEP OUT signalBEG FRQ=261.6000 Hz END FRQ=1.108700kHz MARK FRQ=523.3000 Hz MORE MODE=BEG-END LAW=LOG RAMP TIME=0.05 s TRIG SRC=CONTINUOUS MOREMODE=BEG-END LAW=LOG RAMP TIME=5.00 s TRIG SRC=CONTINUOUS MORE SOURCE=EXT TGEN=1.00ms 1.000kHz BURST COUNT=0001 PHASE=+000 +000 PHASE=+000 +000Generating a Triggered Burst FREQ=2.000000kHz VhiZ=+20.0 Vpp 50Ω DC=+0.00mV +0.00mVFSK Mode Special WaveformsStaircases FREQ A=800.0000 Hz FREQ B=1.200000kHz SOURCE=TGEN FREEFigure 2. 625-line PAL TV Signal step namestart µs amplitudeVALS=ABS AUTO=YES STEP=01 ACTIVE LENGTH=0256 LEVEL=+000 VALS=ABS AUTO=YES STEP=08 ACTIVE LENGTH=0005 LEVEL=+153Saving and Recalling Settings Arbitrary WaveformsRECALL ARB No SINX/X ENTER TO EXECUTE RECALL ARB No ARB 03 IS EMPTYOther Functions and Waveforms