R&S ESW-K58, Руководство пользователя

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Configuration
R&S
®
ESW-K58
25 User Manual 1179.0880.02 ─ 03
Remote command:
Global:
INPut<ip>:ATTenuation[:VALue]
on page 76
Attenuation mode:
INPut<ip>:ATTenuation:AUTO
on page 75
10 dB Minimum Attenuation
Turns the availability of attenuation levels of less than 10 dB on and off.
When you turn on this feature, the attenuation is always at least 10 dB. This minimum
attenuation protects the input mixer and avoids accidental setting of 0 dB, especially if
you measure EUTs with high RFI voltage.
When you turn it off, you can also select attenuation levels of less than 10 dB.
The setting applies to a manual selection of the attenuation as well as the automatic
selection of the attenuation.
Remote command:
INPut<ip>:ATTenuation:PROTection[:STATe]
on page 76
Preamplifier
Configures the preamplifier.
In addition to the standard preamplifier, a low noise amplifier is available as an optional
hardware component.
●
"Off"
Turns off the preamplifier.
●
"LN Amplifier"
Turns on the optional low noise amplifier.
Note that if you want to use the standard preamplifier, you have to route the signal
through the preselector.
More information .
Remote command:
Preamplifier:
State (global):
INPut<ip>:GAIN:STATe
on page 77
Low noise preamplifier:
State (global):
INPut<ip>:GAIN:LNA:STATe
on page 77
5.3.2 Increasing measurement sensitivity (or avoiding an input mixer
overload)
Measurements often confront you with unknown or unintentional signals with unknown
signal levels (and often with pulse characteristics). Such signals can either have very
weak signal levels, in which case you might miss them during the measurement. Or
they can have very strong signal levels, in which case they can damage the input
mixer.
Amplitude