21-3 BASIC OPERATION
Control of the unit and selection of data to be
displayed are done through the use of three main
windows which simultaneously appear on the
screen: the Display Zone, the RF Zone, and the
Audio Zone. These three zones are shown in
Figure 21-3. The Display Zone displays data
related to the radio under test. The RF Zone is
used for selection of RF mode, selection of
frequency band, I/O port selection and for control
of RF signal level at the input/output port. The
Audio Zone is used to select the modulation
format, and the signal source and deviation level
when generate mode has been selected.
21-3.1 Display Screens
The three m
ain windows, or cursor zones, are
accessed through a cluster of three CURSOR
ZONE keys at the top center of the unit. The
location where the cursor rests within each zone
is called a cursor field. To control the unit and
enter data, all operator inputs are made at
highlighted cursor fields (brighter-face type).
Below the screen are softkeys. These softkeys,
with customized on-screen labels, interact with
the screen to provide a unique menu of entry
options for each cursor field. This greatly reduces
the number of keys and eliminates having to
search through unrelated controls to find the one
that is needed.
21-3.2 Manual Operation
To control the cursor location and input informa-
tion by (manual control):
Use the CURSOR ZONE keys to move the
cursor among the three zones.
Use the CURSOR POSITION keys to move the
cursor from field to field within a zone.
Once at the desired field, use either the TUNING
knob or the numeric keys to enter numeric
information. Use the softkeys for other menu
selections.
.
Figure 21-3. Screen Zone Arrangement
259
To Next Page
Loading...
Need help?
General
