Operating Manual EMI TEST RECEIVER ESIB7 - Rohde & Schwarz

ESIB- Receiver
ESIB
0 DB MIN
ON OFF
The 0 DB MIN softkey determines whether the 0 dB setting of
the attenuator may be used in the manual or automatic setting
of the attenuator.
0 DB MIN OFF is the default value, ie an RF attenuation of at
least 10 dB is always set on ESIB to protect the input mixer.
An attenuation of 0 dB cannot be set manually either. This
avoids 0 dB being switched on inadvertently particularly when
DUTs with high RFI voltage are measured.
Caution:
If 0 dB RF attenuation is used with
autoranging, care must be taken that the
permissible signal level at the RF input is not
exceeded. Exceeding this level would
damage the input mixer. The 0 dB
attenuation should under no circumstances
be used when RFI voltage measurements
are performed with artificial networks as in
this case very high pulses occur during
phase switching.
C/IEEE-bus command
:INPut:ATTenuation:PROTection ON | OFF
AUTO RANGE
ON OFF
The AUTO RANGE ON/OFF softkey switches the autorange
function on and off.
With the autorange function active, ESIB automatically sets the
attenuation so that a good S/N ratio is obtained without the
receiver stages being overdriven.
IEC/IEEE-bus command
:INPut:ATTenuation:AUTO ON | OFF
AUTOPREAMP
ON OFF
The AUTOPREAMP ON/OFF softkey switches the autopreamp
function and or off.
With the autopreamp function active, the preamplifier is
considered in the autorange procedure. The preamplifier is cut
in when the RF attenuation is reduced to the minimum settable
value.
IEC/IEEE-bus command :INPut:GAIN:AUTO ON | OFF
1088.7531.12 4.78 E-15