Aeroflex 3500A - Page 42

2-2 Subject to Export Control, see Cover Page for details.
2-1. OPERATOR’S CONTROLS, INDICATORS AND CONNECTORS (cont)
ITEM DESCRIPTION
 LEFT Key Used to move the on-screen cursor from one frame to
another. Also used to move the on-screen cursor to the
next digit to the left in an edit field.
NOTE: The on-screen cursor moves in a fixed order.
This is to ensure that all frames and fields are
accessed in a predictable fashion.
 RIGHT Key Used to move the on-screen cursor from one frame to
another. Also used to move the on-screen cursor to the
next digit to the right in an edit field.
NOTE: The on-screen cursor moves in a fixed order.
This is to ensure that all frames and fields are
accessed in a predictable fashion.
 UP Key Used to move the on-screen cursor from one field to
another within a frame. Also used to increment an edit
field.
NOTE: The on-screen cursor moves in a fixed order.
This is to ensure that all frames and fields are
accessed in a predictable fashion.
 DOWN Key Used to move the on-screen cursor from one field to
another within a frame. Also used to decrement an edit
field.
NOTE: The on-screen cursor moves in a fixed order.
This is to ensure that all frames and fields are
accessed in a predictable fashion.
AUDIO Connector Used for connection to the Microphone.
AUDIO IN Connector (3500A only) Used to receive external modulation input, and as input
for the SINAD and Distortion Meters and AF Counter.
AUDIO OUT Connector (3500A only) Used as output for Demod and Function Generators and
for Audio In signal output.
ANT Connector Used for over-the-air tests.
BACKLIGHT / ± Key Used for selecting the Backlight Adjust Mode. The
 UP or  DOWN Keys may be used to adjust the
Backlight level to one of 25 different settings.
Used to change between positive (+) and negative (-)
values during data entry.
CHARGE Indicator Illuminates when external DC power is applied:
GREEN Battery at Full Charge
YELLOW Battery is Charging
RED Battery Charge Failure
CONTRAST / • Key Used for selecting the Contrast Adjust Mode. The
 UP or  DOWN Keys may be used to adjust the
Contrast level to one of 25 different settings.
Used to add a decimal point (•) to values during data
entry.