Instrument Tour
R&S
®
FPS
33
Getting Started 1319.3362.02 ─ 07
Risk of instrument damage
Do not overload the input. For maximum allowed values, see the data
sheet. For AC-coupling, a DC input voltage of 50 V must never be excee-
ded. For DC-coupling, DC voltage must not be applied at the input. In both
cases, noncompliance will destroy the input mixers.
3.2.2
NOISE SOURCE CONTROL
The noise source control female connector is used to provide the supply voltage
for an external noise source, e.g., to measure the noise figure and gain of amplifi-
ers and frequency converting devices.
Conventional noise sources require a voltage of +28 V in order to be switched on
and 0 V to be switched off. The output supports a maximum load of 100 mA.
3.2.3
REF INPUT / REF OUTPUT
The REF INPUT connectors are used to provide an external reference signal to
the R&S
FPS.
The REF OUTPUT connectors can be used to provide an external reference sig-
nal (or the OCXO reference signal) from the R&S
FPS to other devices that are
connected to this instrument.
Connector
Reference signal
Usage
REF INPUT
1...20 MHz
0...10 dBm
To provide an external reference signal on the
R&S
FPS.
REF OUTPUT
10 MHz
10 dBm
To provide the internal reference signal from the
R&S
FPS to another device continuously.
Also used to provide OCXO reference signal to
another device.
3.2.4
GPIB (SCPI) Remote Control Connector
The IEC 625 GPIB interface is in compliance with IEEE488 and SCPI. A com-
puter for remote control of the R&S
FPS can be connected via this interface. For
Rear Panel View
Summary of Contents for R&S FPS
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