Chapter 2 25
Front and Rear Panel Features
Front Panel Overview
used in some measurements.
5 CONTROL functions access menus that adjust the resolution bandwidth, adjust the
sweep time, and control the analyzer display. They also set other analyzer
parameters needed for making measurements.
6 MEASURE accesses a menu of keys that automate some common analyzer
measurements. Once a measurement is running,
Meas Setup accesses additional
menu keys for defining your measurement.
Meas Control and Restart access
additional measurement control functions.
7 SYSTEM functions affect the state of the entire analyzer.
Various setup and alignment routines are accessed with the
System key.
The green
Preset key resets the analyzer to a known state.
The
File key menu saves/loads setups, traces, states, limit-line tables, screens,
measurement results, and amplitude correction factors to or from analyzer
memory or the floppy disk drive. The
Save key immediately executes the Save
Now
function defined under File in your User’s guide.
The
Print Setup menu keys configure hardcopy outputs. The Print key
immediately sends hardcopy data to the printer. See your User’s guide for more
details.
8 MARKER functions control the markers, read out frequencies and amplitudes along
the analyzer trace, automatically locate the signals of highest amplitude, and access
functions like
Marker Noise and Band Power.
9 The Media Door on the right side of the front panel accesses the 3.5 inch disk drive
and the Earphone connector. The earphone connector provides a connection for an
earphone jack which bypasses the internal speaker.
10 The Data Control Keys, which include the step keys, knob, and numeric keypad,
change the numeric value of an active function such as center frequency, start
frequency, resolution bandwidth, and marker position.
The data controls will change the active function in a manner prescribed by that
function. For example, you can change center frequency in fine steps with the knob,
in discrete steps with the step keys, or to an exact (1 Hz resolution) value with the
numeric keypad.
The Knob provides fine incremental changes of functions such as center
frequency, reference level, and marker position. Clockwise rotation of the knob
increases values. The extent of alteration is determined by the size of the
measurement range. The speed at which the knob is turned affects the rate at
which the values are changed.
For slow sweeps, the analyzer uses a smooth panning feature which is designed
to move the trace display to the latest function value as the knob is turned. When
center, stop or, start frequency or reference level is adjusted, the signal will shift
right or left or up or down with the rotation of the knob before a new sweep is
actually taken. An asterisk is placed in the message block (the upper right-hand
corner of the analyzer display) to indicate that the data on the screen does not
reflect data at the current setting.
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