73
Front Panel Connections
10.5 OUTPUT 50 Ω (
Tracking Generator)
The tracking generator output has to be connected to the
measuring object with a N connector cable. The tracking
generator function is only available in combination with
R&S®HMS-TG option resp. R&S®HV211 voucher. A test si-
gnal with a spectrum from 5 MHz to 1.6 GHz resp. 3 GHz is
available.
10.6 INPUT 50 Ω
Connect the RF input via a cable with an N connector to
the DUT. Make sure that it is not overloaded. The
maximum permissible continuous power with an
attenuation of 10 dB to 50 dB at the RF input is +20 dBm
(100 mW). Without attenuation (Att 0 dB) 80 V
DC
must not
be exceeded. The outer contact is connected to the
instrument chassis and thus to safety ground (PE). The
maximum input levels resp. voltages must not be
exceeded. Danger of destruction!
Caution!
The RF input is AC-coupled. The DC input voltage must
never exceed the value specified on the housing; other-
wise the input may be destroyed.
Caution!
The output is AC-coupled and a voltage that does not
exceed the voltage stated on the R&S®HMS-X housing
can be fed into the output; if this voltage is exceeded,
the output may be destroyed.
11 Rear Panel
Connections
11.1 USB stick connector
The USB connector on the rear panel can be used to con-
nect a printer (see chapter 9.4).
11.2 DVI-D connector
The rear panel of the spectrum analyzer includes a stan-
dard DVI-D connector to connect external monitors and
projectors. The DVI-D connector can only send digital sig-
nals. This means it is impossible to connect monitors or
beamers via their analog inputs. The R&S®HMS-X yields
a DVI signal with VGA resolution (640 x 480). This design
enables connectivity with all standard TFT monitors. Mo-
dern flat screens extrapolate the signal, allowing users to
see a full screen. Beamers can also be connected to the
R&S®HMS-X. Ideal beamers in this case are those desig-
ned to be connected to computers/ notebooks as these
are also able to process a 640x480 pixel resolution.
11.3 REF IN / REF OUT
In order to further increase the frequency stability, the in-
ternal oscillator may be replaced by an external oscilla-
tor which can be connected to the REF IN/ REF OUT BNC
connectors on the rear panel. The external 10MHz refe-
rence frequency signal must comply with the specifica-
tions given with respect to frequency accuracy and amp-
litude. The switching between internal and external refe-
rence frequency can be effected via the SETUP key and
the softkey REF. FREQ.
External USB hard disc drives (or USB extension) will be not sup-
ported. Only FAT/FAT32 formatted USB sticks (4GB max.) can be
used with the R&S®HMS-X.
DVI-VGA adapters as well as DVI-composite adapters are not
supported. You might encounter difficulties when connecting the
R&S®HMS-X to an HDTV set through an HDMI adapter, as most
HDTV sets expect an HDMI signal of 720p and higher.
Summary of Contents for HMS-X
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