AR 1000S1G6C, Operating And Service Manual

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Model 1000S1G6C
Rev A 17
2.6.3 Main Menu Screen
The Main Menu screen is only available when the Keylock switch is in the LOCAL position.
At the top of the screen is a blue bar graph and associated number that can represent either the RF Gain, ALC
Threshold, ALC Detector Gain, or ALC Response value. Use the ADJUST knob on the front panel to adjust
the value currently being displayed. Press the Select button to change the value displayed. For more
information, see the Select Screen section below.
The RF State indicator shows the current RF State as either RF: Off or RF: On . Use the RF On/Off button to
enable or disable the RF path through the amplifier.
Next to the RF State indicator is the Calculated VSWR display. This display shows the calculated output
VSWR based on the ratio of the forward and reverse power. To set the VSWR Limit, press the User button to
open the User screen, then the VSWR Lim button. For more information, see the VSWR Limit section below.
Under the RF State, the Automatic Leveling Control (ALC) Mode setting is displayed as either Mode: Manual
or Mode: ALC Int . To change the ALC mode, press the Mode button. For more information, see the Mode
Screen
section.
The green and red bar graphs and associated values display the forward and reverse power indicator values in
Watts. The scale of the bar graphs is based on a range of 0 to rated power (see specification sheet). The forward
power is indicated in green while the reverse power is indicated in red.
A bar at the bottom of the screen shows the current frequency being used to correct the power indicator values.
The frequency can be changed by pressing the Power Ind. button. For more information, see the Power
Indicator Frequency screen section.