Fluke 271 manual MODE=BEG-END LAW=LOG RAMP TIME=0.05 s TRIG SRC=CONTINUOUS MORE, Getting Started

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MODE=BEG-END LAW=LOG

Getting Started

Using the Instrument

At this point the lamp next to the SWEEP key should be flashing and the display should look like this:

MODE=BEG-END LAW=LOG

RAMP TIME=0.05 s

TRIG SRC=CONTINUOUS

MORE->>>

All these settings are fine except for the sweep time, which is too short if you are listening to the signal.

Change the sweep time to, say, 5 seconds. When you press the ENTER key the display will return to the main menu, so press EDIT and SWEEP again and use the FIELD key to move to the next screen.

MODE=BEG-END LAW=LOG

RAMP TIME=5.00 s

TRIG SRC=CONTINUOUS

MORE->>>

Now set the beginning and end frequencies. The frequencies shown here correspond to a sweep of 2 octaves starting at middle C, with a marker in the middle of the sweep.

BEG FRQ=261.6000 Hz

END FRQ=1.108700kHz

MARK FRQ=523.3000 Hz

MORE->>>

Now press the SWEEP key.

The sweep is generated continuously. You can reverse the direction on the first sweep edit menu by changing

MODE=BEG-END to MODE=END-BEG.

You can also set up to initiate the sweep manually - do this by changing TRIG SRC=CONTINUOUS to TRIG SRC=MAN/REMOTE. Single sweeps are now initiated by pressing the MAN/SYNC key.

Note that the settings for the internal trigger generator have no bearing on the sweep in this instance.

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Contents Programmable 10 MHz DDS Function Generator Getting Started ManualTo register your product online, visit register.fluke.com LIMITED WARRANTY AND LIMITATION OF LIABILITYSafety Getting Started Manual Alternating current Warning - hazardous voltages may be present Safety continuedThe following symbols are used on the instrument and in this manual Terminal connected to chassis ground Mains supply OFF Mains supply ONPage EMC Compliance EmissionsImmunity e EN61000-4-5 1995 Surge 0.5 kV line to line, 1 kV line to ground Title Table of ContentsAUX OUT viiiMains Supply Voltage Getting StartedIntroduction Before You StartExternally Applied Voltages shx0001f.gif Controls and ConnectionsGetting Started Figure 1. Model 271 Front PanelThe Liquid Crystal Display ControlsFunction Keys FIELD and DIGIT Keys and the Rotary Control Numeric, Units and SET Keys RECALL and REMOTE MODE KeysUTILITIES Keys OUTPUT KeyAUX OUT Front Panel Inputs and OutputsEXT TRIG MAIN OUTSYNC OUT Rear Panel ConnectorsCLOCK IN/OUT VCA INTRIG/SWEEP OUT RS232 and GPIB Interface ConnectorsCheck the LCD Display Using the InstrumentPlug in and switch on the instrument Starting upSYM=50.0% 50.0% Generating Continuous SignalsSet a frequency, for example 12.5 kHz FREQ=12.50000kHz VhiZ=+20.0 Vpp 50Ω DC=+0.00mV +0.00mV=80.00000us Set the amplitude to +10 dBmHave a look at some other waveforms Change the dc offsetEffect of the output attenuator DC OFFSET CHANGE * * BY OUTPUT LEVELPER =80.00000us VhiZ=+4.00 Vpp 50Ω DC=+1.50 V +151.mV SYM=50.0% 50.0% Asymmetric waveforms Adjusting the phaseSOURCE=EXT TGEN=1.00ms 1.000kHz BURST COUNT= PHASE=+000 +000 SOURCE=EXT TGEN=1.00ms 1.000kHz BURST COUNT= PHASE=+116 +116TRIG/SWEEP OUT signal Generating Swept SignalsMODE=BEG-END LAW=LOG RAMP TIME=0.05 s TRIG SRC=CONTINUOUS MORE MODE=BEG-END LAW=LOG RAMP TIME=5.00 s TRIG SRC=CONTINUOUS MOREBEG FRQ=261.6000 Hz END FRQ=1.108700kHz MARK FRQ=523.3000 Hz MORE FREQ=2.000000kHz VhiZ=+20.0 Vpp 50Ω DC=+0.00mV +0.00mV SOURCE=EXT TGEN=1.00ms 1.000kHz BURST COUNT=0001 PHASE=+000 +000PHASE=+000 +000 Generating a Triggered BurstFREQ A=800.0000 Hz FREQ B=1.200000kHz SOURCE=TGEN FREE FSK ModeSpecial Waveforms StaircasesFigure 2. 625-line PAL TV Signal amplitude stepname start µsVALS=ABS AUTO=YES STEP=08 ACTIVE LENGTH=0005 LEVEL=+153 VALS=ABS AUTO=YES STEP=01 ACTIVE LENGTH=0256 LEVEL=+000RECALL ARB No ARB 03 IS EMPTY Saving and Recalling SettingsArbitrary Waveforms RECALL ARB No SINX/X ENTER TO EXECUTEOther Functions and Waveforms