Test Solutions - User Guide
Page 22
RCM Series Compact Modular Test Systems
4-Oct-17 (A3)
Attenuator Sequencing
Clicking the
button on any Attenuator Display opens the attenuator sequencing menu for
that attenuator:
Figure 19: Attenuator sequencing menu
The attenuator sequencing menu displays controls for attenuation sweeping and hopping as well
as other useful functions for automating various attenuation patterns for the selected attenuator.
Sweep Mode:
Selecting the “Sweep Mode” radio button allows you to set up attenuation
sweeps over any attenuation range within the specified range of the selected RUDAT.
The settings for Sweep Mode are as below, with all attenuation values having a precision
of 0.25 dB:
Start (dB): The starting attenuation value for the sweep.
Stop (dB): The ending attenuation value for the sweep.
Step (dB): Sets the step size for the sweep.
Dwell Time: Sets the time interval over which attenuation will remain at each step
in the sweep. You can set dwell times as short as 5 ms although this is limited by
the communication delays between computer and attenuator.
Bi-Directional: Checking this box will run the attenuation sweep from “Start” value
to “Stop” value and then in reverse back to “Start” value.
Hop Mode:
Selecting the “Hop Mode” radio button allows you to enter a list of discrete
attenuation levels in any order and run that attenuation pattern. Valid attenuation values
must be within the attenuation range of the selected RUDAT and be in denominations of
0.25 dB. Pressing the “Enter” key after each entry in the hop sequence creates a new
empty row for the next entry in the sequence. The settings for hop mode are:
Hop #: Denotes the order of an attenuation value in the hop sequence. For
example, the attenuation value in the row with Hop # of “3” will be third in the hop
sequence.
