7
1.
Use good quality 50 Ω coaxial cable and connectors.
2.
Make all connections tight and as short as possible.
3.
Use good quality attenuators, if it is necessary to reduce waveform amplitudes applied
to sensitive circuits.
4.
Use termination or impedance-matching devices to avoid reflections.
5.
Ensure that attenuators and terminations have adequate power handling capabilities.
If there is a DC voltage across the output load, use a coupling capacitor in series with the load.
The time constant of the coupling capacitor and load must be long enough to maintain pulse
flatness.
Impedance Matching
If the waveform generator is driving a high impedance, such as a 1 MΩ input impedance
(paralleled by a stated capacitance) of an oscilloscope vertical input, connect the transmission
line to a 50 Ω attenuator, a 50 Ω termination and to the oscilloscope input. The attenuator
isolates the input capacitance of the device and terminates the waveform generator properly.
2.3
Preliminary Check
Complete the following steps to verify that the generator is ready for use.
1.
Verify AC Input Voltage
Verify and check to make sure proper AC voltages are available to power the
instrument. The AC voltage range must meet the acceptable specification as explained
in section 2.1.
2.
Connect Power
Connect AC power cord to the AC receptacle in the rear panel and press the power
switch to the ON position to turn ON the instrument. The instrument will have a boot
screen while loading, after which the main screen will be displayed.
3.
Self Test
Press Utility, and select Test/Cal option. Then, select SelfTest option. The instrument
has 4 self-test options: screen test, key test, LED test, and board test.
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