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Operation and Reference
The marker frequency should be lower than the stop frequency by a sufficient
amount to permit the marker pulse width to be approximately 400
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To change any of the sweep parameters, press the appropriate Sweep Linear/Log entry key,
then enter the desired data. To select log sweep, press the blue [Shift] key followed by the
[Log] (Time) key to illuminate the log indicator. The sweep mode is linear unless the log or
discrete indicators are illuminated. To select discrete sweep, press the [Shift] key and then
the [Discrete] key. When a discrete sweep is selected, the discrete indicator is illuminated.
Start Frequency
The [Start Freq] (start frequency) key enables display, entry, or modification
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The displayed frequency value may be changed with the entry and units
keys, or with the modify keys. The MHz, kHz, and Hz units allow
convenient entry of frequency values. Frequency resolution is 1 jjHz for
frequencies below 100 kHz and 1 mHz for frequencies above 100 kHz. The
upper frequency limit is established by the function selected.
Start
Freq
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the [Start Freq] key illuminates when a start frequency value is displayed.
Stop Frequency
The [Stop Freq] (stop frequency) key enables display, entry, or modification
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of the sweep stop frequency of the main signal. The indicator adjacent to the
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Ley illuminates when a stop frequency value is displayed. The
displayed frequency value is changed with the entry and units keys, or with
the modify keys. The MHz, fflz, and Hz units allow convenient entry of
frequency values. Frequency resolution is 1 /xHz for frequencies below
100 kHz and 1 mHz for frequencies above 100 kHz. The upper frequency
limit is established by the Main Function selected.
Time
The [Time] key enables display, entry, or modification of the sweep time for
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^Le Main Signal. The indicator adjacent to the [Time] key illuminates when
Time
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value is displayed. The displayed time value is changed with the
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entry and units keys, or modified with the modify keys. The [SEC] units key
ends entry of numeric values.
The maximum time per sweep (up or down) for all sweep modes is 1000 seconds, with a
resolution of 0,01s for times s Is, and 0.001s for times < Is.
The )<-Driye output functions only when sweep time is < 100s. See the discussion,
later In this chapter, on the marker, 2-blank, and X-drive rear-panel connectors.
1-22
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