Operation Overview
Model 3585A
3-12
KEYBOARD ENTRY FUNCTIONS*
Entry Keys
Each of the 3 5 8 5A's major operating parameters
has a dark brown ENTRY key which, when press
ed, prefaces that parameter. The prefaced
parameter is highlighted on the CRT screen to in
dicate that its value can be changed using the
STEP keys or the Number/Units keyboard.
STEP
Number/Units Keyboard
The value of any prefaced parameter (except
RA N G E ) c a n be set exactly u s i n g the
Number/Units keyboard. To numerically change
the value of a prefaced parameter, simply enter
the desired number using the " Number" keys and
then terminate the entry by pressing the ap
propriate suffix ( Units) key. The 3 5 8 5A's free
entry format allows you to make your entries in
the units that are the most convenient. Entries
that exceed the limits of a parameter or attempt to
select unavailable settings are not accepted.
ENTRY
ENTRY
El1 [8)
,---- ENTRY--------,
Step Keys
The STEP keys increment
or decre
ment
the value of the prefaced parameter.
Each press of a STEP key produces a single step;
multiple step changes can be made without
reprefacing. Step sizes for all parameters except
Center Frequency and Manual frequency are inter
nally defined to either produce an appropriate
amount of change or select the next available set
ting. Center and Manual frequency steps are equal
to the Center-Frequency Step Size which can be
set to any value within the range of 0 Hz to 40. 1
MHz with 0 . 1 Hz resolution. Steps that would ex
ceed the upper or lower limit of a parameter are
not accepted.
"Number"
Keys
\
[Z] [D] � m
m GJ m �
m QJ rn m",
·See Operating Manual (Chapter 5)
for
additional information.
