Instrument Tour
R&S
®
FSVA3000/R&S
®
FSV3000
48Getting Started 1330.8073.02 ─ 03
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5.1.9 Undo/Redo Keys
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The [Undo] key reverts the previous action, i.e. the status before the previous
action is retrieved.
The Undo function is useful, for example, if you are performing a zero span
measurement with several markers and a limit line defined and accidentally
select a different measurement. In this case, many settings would be lost.
However, if you press [Undo] immediately afterwards, the previous status is
retrieved, i.e. the zero span measurement and all settings.
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The [Redo] key repeats the previously reverted action, i.e. the most recent
action is repeated.
The [Undo] function is not available after a [Preset] or "Recall" operation.
When these functions are used, the history of previous actions is deleted.
5.1.10 Probe
The R&S FSV/A provides a connector for supply voltages of +15 V to -12 V and
ground for active Probes and preamplifiers. A maximum current of 140 mA is
available. This connector is suitable as power supply for high-impedance Probes.
5.1.11 EXT MIXER Connector (Optional)
Connect external mixers to the EXT MIXER LO OUT/IF IN and IF IN female con-
nectors to increase the available frequency range. These connectors are optional
and only available with R&S FSV3-B21 (currently not yet available).
If no external mixers are connected to the R&S FSV/A, cover the two front con-
nectors LO OUT / IF IN and IF IN with the supplied SMA caps.
5.1.12 AF Out and Volume (R&S FSV3-B3)
This option allows you to monitor demodulated audio frequencies in time domain
measurements acoustically.
The AM and FM audio output is provided to the AF Out connector.
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