Model 350S1G6A
10
Rev C
2.2.4
RF ON/OFF
The RF ON/OFF touch screen button toggles the amplifier from a Standby to an Operate mode. The status of
the function is indicated on the display as RF ON or RF OFF. In the RF ON state, RF output is enabled
according to control settings and amplifier RF input. Main cooling fans will operate. In the RF OFF state,
there will be no RF output.
2.2.5
RESET Function
The RESET function, selected by the touch screen button, will cause the amplifier to attempt to reset.
Selecting Reset may clear the fault, depending upon the type of fault that has occurred. If the amplifier is in
an over-driven condition, lowering the amplifier’s gain or RF input level should enable the function to reset
the amplifier.
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
whichever user adjustable parameter is selected. These parameters are RF Gain, ALC Threshold Level, ALC
Detector Gain, and ALC Response. (Not all adjustments are available on every amplifier.) The Select button
from the Main Menu is used to select these parameters.
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 amplifier mode indicator. Possible modes are Manual, Pulse, ALC
Internal, and ALC External. (Not all modes are available on every amplifier.) The amplifier mode can be
changed using the Mode button from the Main Menu.
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
.
