Preparing for Use
R&S
®
SMBV100A
32Operating Manual 1176.8016.02 ─ 17
REF IN
Input for external reference signal.
OCXO
Oven-controlled reference oscillator (option R&S SMBV-B1)
The OCXO generates a very precise 10 MHz reference signal. It needs some minutes
of warm-up time to reach its nominal frequency.
Refer also to the data sheet for detailed information.
AC SUPPLY AND POWER SWITCH
When the R&S SMBV is connected to the AC supply, it automatically sets itself to the
correct range for the applied voltage (range: see type label). There is no need to set
the voltage manually or change fuses.
The instrument comes with or without a power switch, depending on the design of the
otherwise technically equivalent power supply unit.
The power switch can be set to two positions:
●
0
The instrument is disconnected from the mains.
●
I
The instrument is power-supplied. It is either ready for operation (STANDBY) or in
operating mode, depending on the position of the ON/STANDBY switch on the
instrument front.
See also data sheet and Chapter 2.3.4, "Connecting the Instrument to the AC Supply",
on page 36.
EXT MOD
Input for external analog modulation signals.
LF
Output for internal LF modulation generator signal.
See also data sheet and Operating Manual, section "LF Generator and LF Output".
FUSES
The R&S SMBV is fully fused by two fuses IEC60127-T3.15H/250 V.
The fuses are accommodated in the fuse holders next to the power connector. Use
only fuses of the mentioned type.
CAUTION! Danger of shock hazard!. Before replacing the fuses, disconnect the power
cord from the R&S SMBV.
2.3 Putting into Operation
This section describes the basic steps to be taken when setting up the R&S SMBV for
the first time.
Putting into Operation