AR 350AH1A, Operating And Service Manual

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Model 350AH1A
10 Rev B
Figure 2-3. Touch Panel Display Menu Map
2.3.1 Amplifier Operating Mode
The 350AH1A amplifier always operated in a CW mode.
In the CW mode, the amplifier’s RF output level is controlled by the input drive level and the RF Gain
control. This mode provides no automatic control of the amplifier’s RF output level other than that provided
by the amplifier’s protective circuitry.
2.3.2 Adjusting Amplifier Controls
All adjustments to control the operation of the Model 350AH1A are made using the dedicated controls,
display menus and adjust knob functionality.
2.3.2.1 RF GAIN Control
The RF GAIN control, which has a minimum of 15dB of range, is used to adjust the gain of the variable gain
module. This control adjusts the output power level for a fixed input power level.
To adjust the RF Gain value, use the adjust knob. Please note that the display panel is limited in resolution
compared to the control signals, which are generated and sent to the variable gain module. A small rotation
that may not show any change on the display may, in fact, cause very small, precise changes in the amplifier’s
RF output.