Agilent Technologies 8719D User Manual page 531

MO Key Definitions
sets the upper limit value for the start of the segment. If a
lower limit is specified, an upper limit must also be dellned. If
no upper limit is required for a particular measurement, force
the upper limit value out of range (for example +500 dB).
segments in the table are displayed in terms of upper and lower
limits, even if they were defined as delta limits and middle
value.
If you attempt to set an upper limit that is lower than the lower
limit, or vice versa, both limits will be automatically set to the
same value.
(Option 010 only) remembers a specified window pulse width
(or step rise time) different from the standard window values
A window is activated only for viewing a time domain response,
and does not affect a displayed frequency domain response.
lets you control the analyzer with the computer over HP-IB as
with the talker/listener mode, and also allows the analyzer to
become a controller in order to plot, print, or directly access
an external disk. During this peripheral operation, the host
computer is free to perform other internal tasks that do not
require use of the bus (the bus is tied up by the network
analyzer during this time). The pass control mode requires that
the external controller is programmed to respond to a request
for control and to issue a take control command. When the
peripheral operation is complete, the analyzer passes control
back to the computer. Refer to the "HP-IB Programming
Reference" and "HP-IB Programming Examples" chapters in the
HP 8719D/%ID/22D Network Analyzer Progmmmer's Guide
more information. In general, use the talker/Iistener mode for
programming the analyzer unless direct peripheral access is
required.
selects the A or B power sensor calibration factor list for use in
power meter calibration measurements
is used to select the preset condition defined by the user.
is used to define kits other than those offered by
Hewlett-Packard.
selects a menu of user settings, including preset settings that
can be changed by the user.
Enters the velocity factor used by the analyzer to calculate
equivalent electrical length in distance-to-fault measurements
using the time domain option. Values entered should be less
than 1.
Velocity factor is the ratio of the velocity of wave propagation
in a coaxial cable to the velocity of wave propagation in
free space. Most cables have a relative velocity of about
0.66 the speed in free space. This velocity depends on
the relative permittivity of the cable dielectric (cJ as
velocity factor = I/&.
for