124 Chapter 2
Front-Panel Key Reference
Meas Setup
This key sets the analyzer up for making CISPR BAND B
measurements. The analyzer settings for this setup are as follows:
Key Access:
Meas Setup
AC
Sets the input coupling to ac coupling. Measurements
below 100 kHz (10 MHz for E7405A) will have
significant amplitude errors in the ac coupled mode.
You should use the dc coupled mode to avoid this rolloff
effect.
Key Access:
Meas Setup, 150 kHz - 30 MHz
DC Sets the input coupling to dc coupling. This allows you
to make measurements at low frequencies with
increased accuracy.
CAUTION To prevent damage to the input circuitry of the analyzer, please ensure
that dc and transient signals are suppressed before selecting dc coupled
mode. Select ac mode if you are unsure of the nature of the input signal.
Once dc coupling has been selected, the analyzer
remains in the dc coupled mode until you do one of the
following:
1. Press
Preselect.
2. Press
Input/output, Coupling (AC).
3. Press
Meas Setup and then select one of the band
keys that automatically set the coupling mode to ac
or manually set the coupling to ac under one of the
band keys that allow ac and dc coupling.
Description Setup
Start Frequency 150 kHz
Stop Frequency 30 MHz
Resolution Bandwidth 9 kHz
Video Bandwidth 30 kHz
Sweep Time Autocoupled
Reference Level 75 dBµV
Attenuation 5 dB
Detector Peak
Scale Type Log
Scale/Division 10 dB/Div
Marker 1 Normal, active
To Next Page
Loading...
Need help?
General
