HP 4284A - Page 91

Keylock Function
Perform the following steps to disable all front panel op erations on
the BIN COUNT DISPLAY page.
Move the cursor to the SYS MENU eld.
Press
NNNNNNNNNNNNNNNNNNNNNNNNNN
more 1/3 , and press
NNNNNNNNNNNNNNNNNNNNNNNNNN
more 2/3 .
Press
NNNNNNNNNNNNNNNNNNNNNNNNNN
KEY LOCK (a toggle type softkey). The key mark will b e
displayed on the left side of
NNNNNNNNNNNNNNNNNNNNNNNNNN
KEY LOCK , and the message Keys
locked will be displayed on the system message line.
Press
NNNNNNNNNNNNNNNNNNNNNNNNNN
KEY LOCK again, if you want to enable the front panel keys.
LIST SWEEP
DISPLAYPage
The HP 4284A's LIST SWEEP function p ermits entry of up to ten
frequencies, signal levels, or DC bias levels, and the measurement
limits on the LIST SWEEP SETUP page under the MEAS
SETUP page. These p oints are automatically swept and the
measurement results are compared to the limits set. When y
ou press
4
DISPLAYFORMAT
5 and
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
LIST SWEEP , the LIST SWEEP DISPLAY
page will be displayed. On the LIST SWEEP DISPLAY page, the
sweep p oints are swept and the measurement results are compared
to the limits. During a sweep, an asterisk mark (*) will app ears on
the left side of the current measuring list sweep p oint. The following
measurement controls can b e set from this page. (Eac
h eld in
parenthesis is used when that control is set.)
Sweep Mo de of the List sweep Measurement( MODE )
System Menu( SYS MENU )
So there are three elds on this page: < LIST SWEEP DISPLAY > ,
MODE , and SYS MENU elds.
The system menu is describ ed in the following paragraphs.
The list sweep point can not b e set from this page, but can only b e
set from the LIST SWEEP SETUP page.
The available elds and the softkeys which corresp onded to each eld
on this page are shown in Figure 3-15 and Figure 3-16.
3-32 DISPLAYFORMAT Menu