216 Keysig ht N9923-90001 User’s GuideSystem SettingsPreferences—Espanol – Spanish—Deutsch – German—Italiano – Italian—Francais – French—Russian—Japanese—Chinese—TurkishBattery SaverWhen the battery saver is OFF, the RF sour ce power is left ON at the end of thesweep which consumes more battery power. This feature is used in CAT, NA,and VVM modes when the internal source is turned ON.Battery Saver is the ONLY FieldFox setting that must be made as a Preferencefrom the Quick Settings table. This setting remains until you change it again.How to set Battery Saver— Press System 7— Then Preferences— Then Preferences— Thenscrollto Global Settings > Battery Saver—ON – To conserve battery power, the RF source power is turned OFF atthe end of each CAT, NA, and VVM mode sweep. This behavior doesnot impact FieldFox measurements.—OFF – Source power is kept ON at all times, including during triggerHold mode and between single sweep acquisitions. The RF sourcestays at the stop frequency until another sweep begins. This providesa constant, uninterrupted RF output from the RF OUT port. Thisbehavior also provides the highest trace stability sweep-to-sweepwhich may only be evident while using either single sweep orRun/Hold. With Battery Saver OFF, the use of a full battery charge isreduced by approximately 45 minutes.The FieldFox internal temps will run 2°C – 5°C cooler with the BatterySaver on (the temperature range is dependent on the ambient temp).