AR 10036390, Operating And Service Manual

Page: 26 / 56

Model 800A3B
Rev D 10
2.3 DIGITAL CONTROL PANEL (DCP) OPERATIONS
The operations described in this section assume that the user is performing these operations from the
amplifier’s front panel with the Keylock Switch in the LOCAL position. Remote control using a personal
computer is available when the Keylock Switch is set to REMOTE. Refer to Section 2.5.5 for information on
remote operation.
Amplifier functions are visually monitored on the front panel display. POWER is controlled by a dedicated
push-button switch to the left of the display. The safety Keylock Switch is located to the lower left of the
display.
In the center of the digital control panel is the graphic touch display. It is used to provide amplifier status
information and a set of menu functions for controlling the amplifier. The menu selections are typically
found as software generated buttons on the right side of the display screen. In some cases, these buttons can
also be found in other areas of the screen. From the MAIN MENU the user can access the RF ON/OFF
button. The RF ON/OFF button causes the power amplifier sections to produce RF output power from the
output connector, based on the various settings and the input level to the amplifier.
To the far right is an ADJUST knob. This knob is used to adjust many of the variables shown on the graphic
touch display.
The graphic touch display is active and illuminated whenever AC power is supplied to the unit and the main
circuit breaker is on.
At the top of the Main Menu screen is a bar graph and numeric value (blue) which is used to indicate RF
Gain. Below the adjustment value section is an indicator for the RF state and the amplifier mode. The RF
state can be changed using the RF On/Off button found in the lower right of the Main Menu.
Below the RF state indicator is the impedance indicator, in Ohms.
Toward the bottom of the display are two bar graphs and two numeric values used to indicate the forward and
reflected power (green and red respectively). These indications are developed using a dual-directional
coupler located within the amplifier near the RF output port, and should be used as un-calibrated indicators of
approximate power level.
General Display Navigation is shown in Figure 2-3, Touch Panel Display Menu Map .