Agilent Technologies N9030a manual Limit RBW/VBW, Atten Offset

Getting Started

Setting up N9061A on the X-Series Analyzer

Preferences

The Preferences menu allows you to configure some analyzer settings when in remote language compatibility mode. Figure 1-4shows the Preferences menu map that is accessed by selecting the Mode Setup hardkey on the front panel and then selecting the Preferences softkey. Preferences are not affected by a power cycle, a remote language change, a mode switching or a mode preset. They are only preset to their default state using Restore Mode Defaults key in the Mode Setup menu (see Figure 1-2), INST:DEF or SYST:PRES:PERS command.

Figure 1-4 Preferences Menu Map

Preferences

Preferences

Limit RBW/VBW

On Off

Atten Offset

On Off

SwpType Rule

Legacy

RF Coupling

As Legacy

LimitAllowS pSCPITime

OnOn OOffff

AC/DC Mode

As Legacy

Always

DC Coupled

Always

AC Coupled

Swp Type Rules

Auto

Best Dynamic Range

Best Speed

Legacy

Limit RBW/VBW

Setting Limit RBW/VBW to On limits the valid resolution bandwidth (RBW) and video bandwidth (VBW) values to those appropriate for the currently selected remote language. While this limitation reduces measurement flexibility, it helps to ensure that the measurement time in emulation mode is the same as the legacy measurement time, and ensures that the responses to RB? and VB? match the legacy instrument. The default state is Off. Setting this key to Off causes the RBW and VBW filters to use the X-Series analyzer range of values for all remote languages.

Atten Offset

Setting Atten Offset to On allows larger input power to be applied to the analyzer, while significantly increasing the noise floor. Since many of the older spectrum analyzers had noise floor 10 dB higher than the X-Series analyzer, this gives the most accurate emulation. The default state is Off.

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