Quick Start
R&S
®
ESR
37
User Manual 1175.7068.02 ─ 12
EXT TRIGGER / GATE IN
The female connector for external trigger/gate input is used to control the measure-
ment by means of an external signal. The voltage levels can range from 0.5 to 3.5
V.
The default value is 1.4
V. The typical input impedance is 10
kΩ.
REF IN
As a reference signal, you can either use the internal reference, or connect an external
one. The setup menu is used to switch between the internal and an external reference.
The REF IN female connector is used as an input for a 1-20
MHz reference signal. The
required input level is 0-10
dBm.
REF OUT
This connector can be used to provide an external reference signal (e.g. the OCXO) to
other devices that are connected to this instrument. The REF OUT female connector
can output a 10
MHz reference signal with an output level of 0
dBm.
GPIB Interface
The GPIB interface is in compliance with IEEE488 and SCPI. A computer for remote
control can be connected via this interface. To set up the connection, a shielded cable
is recommended.
For more information refer to the User Manual, chapter 7 "Remote Control Basics".
TRIGGER OUTPUT
The female BNC connector can be used to provide a signal to another device. The sig-
nal is TTL compatible (0
V / 5
V).
You can control the trigger output with the functionality provided in the "In-/Output"
menu ([INPUT/OUTPUT] key).
The trigger output also controls signals by the frequency mask trigger available in real-
time mode (R&S
ESR-K55).
IF/VIDEO
The female BNC connector can be used for various outputs:
●
Intermediate frequency (IF) output of 32 MHz
●
Video output (1
V)
You can select between IF and video output with the functionality provided in the "In-/
Output" menu ([INPUT/OUTPUT] key).
USB
The rear panel provides two female USB connectors to connect devices like an exter-
nal keyboard or mouse. You can also connect a memory stick to save and restore
instrument settings and measurement data.
Front and Rear Panel View
