Other Functions and Waveforms | Fluke 271 guide

271

Getting Started Manual

arbitrary waveforms 01 to 05. These first five store locations are available for waveforms downloaded from a PC.

When you press the ENTER key the output switches to the selected waveform but the display does not change; press ESCAPE to return to the main menu, then press ARB and switch the output on to initiate the signal.

Note that there are no facilities for storing waveforms edited using the instrument itself. However, certain waveforms, for example waveforms which emulate the effect of passing sharp edges through low-pass filters, can be generated without the aid of a computer. There are some examples described in chapter 15, Application Examples, of the Users Manual.

Other Functions and Waveforms

The instrument offers a number of additional capabilities and features which are beyond the scope of this Getting Started Manual. These include:

•Amplitude modulation

•Frequency hopping

•Phase locking

•Noise generation

•Synchronizing two or more generators in master-slave mode

•Remote operation through the RS232 and GPIB interfaces.

These are all covered in detail in the Users Manual.

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Fluke 271 manual Other Functions and Waveforms

Contents

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