HP 8340b Operating Instructions

STOP/AF Frequency Display
DESCRIPTION
This display shows, in megahertz, either the Stop frequency or the AF frequency span of the HP
8340B/41B.
PANEL LAYOUT
STOP A F
■ HH FREQUENCY MHz Wmmam
ED
FUNCTIONS
One of two frequencies is shown in this display: Stop, or AF. Figure 3-7 explains the implementation
of these two functions.
This display can be blanked (turned off) by pressing [SHIFT] [CONT]. Although the display is blanked
the Stop or AF values can be changed by the same local and remote procedures that are used when
the display is active. Press [SHIFT] [CONT] again to turn the display on.
INDICATORS
STOP, AF: These two amber annunciators indicate which function value is shown in the display.
DIAGNOSTICS
Press and hold [INSTR PRESET] to light the two annunciators, then release [INSTR PRESET] and
press [SHIFT] [FREE RUN] which will light every LED segment ( " 8 888888888888 ”). Press [INSTR
PRESET] or cycle the POWER switch to end this diagnostic routine. (This diagnostic also tests the
three other displays.)
NOTE: [INSTR PRESET] will restore the instrument to its standard starting condition. Cycling the
POWER switch will restore the instrument to its previous state.
Figure 3-5. Stop/AF Frequency Display
3-16
Operating Information
HP 8340B/41B

HP 8340b Specifications

General

Brand	HP
Model	8340b
Category	Inverter
Language	English