2-6 Chapter2
Getting Started
Front-Panel Features
The Step Keys (⇓ ⇑) increase or decrease the active
function value. The step size depends upon the current
analyzer measurement. Each press results in a single
step change. For those parameters with fixed values
(resolution bandwidth), the next value in a sequence is
selected each time a step key is pressed. Changes are
predictable (10% of span for center frequency) and can
be set for some functions (100 MHz for center
frequency). Out-of-range values or out-of-sequence
values will not occur using these keys.
11 VOLUME. The VOLUME knob adjusts the volume of the
internal speaker. The speaker is turned on and off with
the
Speaker On Off key in the Det/Demod menu.
12 EXT KEYBOARD. The EXT KEYBOARD connector is a
6-pin mini-DIN connector. The keyboard can be used to
enter screen titles and filenames.
NOTE To avoid damage to the analyzer, always turn off power before plugging
a keyboard into the instrument.
13 PROBE POWER provides power for high-impedance AC
probes or other accessories. (+15 V, −12.6 V, 150 mA
max)
14 LO OUTPUT provides the proper local oscillator signal
for use with external mixers (Option AYZ).
15 IF INPUT connects to the IF OUTPUT of the external
mixer (Option AYZ).
16 Return. The Return key accesses the previously selected
menu. Continuing to press
Return accesses earlier
menus.
17 AMPTD REF OUT provides an amplitude reference signal
of 50 MHz at –20 dBm. Agilent Technologies E4402B,
E4403B, E4404B, E4405B, E4407B, and E4408B only.
18 Tab Keys are used to move around in the Limit editor
and the Correction editor.
19 INPUT 50Ω (INPUT 75Ω for Option 1DP) is the signal
input for the analyzer.
CAUTION When operating in DC coupled mode on spectrum analyzers with
Option UKB, take care to protect the input mixer by limiting the input
level to 0 VDC, +30 dBm.
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