Putting into Operation R&S FSH3
Switching on the Spectrum Analyzer
The R&S FSH3 can be powered from the supplied AC-line adapter or the internal battery. When fully
charged, the built-in nickel metal hydride battery gives an operating time of about four hours. On
delivery, the battery in the R&S FSH3 may be flat. It must, therefore, be charged up before the
R&S FSH3 can be used. If the instrument is switched off, the charging time is four hours.
When the adapter is used, the R&S FSH3’s battery is charged simultaneously.
Insert the adapter jack plug into the POWER ADAPTER connector on the right-hand side of the carrying
handle so that it locks into position. Then, connect the adapter to an AC socket. The adapter voltage
range is 100 V to 240 V.
Caution!
Only the R&S FSH-Z33 adapter provided may be used to power the R&S FSH3 or charge
the battery from the AC supply.
Prior to use, ensure that the AC supply voltage is compatible with the voltage specified on
the adapter. Before inserting the adapter in the AC power outlet, select the appropriate
connector.
In vehicles, the battery can be charged from the cigarette lighter socket using the R&S FSH-Z21 cable.
Caution!
It is strictly forbidden to operate the R&S FSH3 via the cigarette lighter socket while the
vehicle is in motion or the engine is running. In these cases, the R&S FSH3 must be off.
While the battery of the R&S FSH3 is being charged via the 12 V Car Adapter
R&S FSH-Z21, the latter must not under any circumstances be connected to the vehicle's
ground (for example, via the RF connector).
To switch on the R&S FSH3, press the yellow button
at the bottom left of the front panel.
The R&S FSH3 displays a connector symbol in the
middle of the display above the softkey labels to
indicate that it is mains powered.
When the R&S FSH3 is switched on, it recalls the settings that it was using when it was last switched
off.
Note: If the internal battery is completely flat, the R&S FSH3 cannot be switched on, even though
it is powered from the mains via the adapter. In this case, the internal battery must be
charged for some time minutes with the instrument switched off. Only then can the
instrument be switched on.
1145.5973.12 1.4 E-6
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