ADB Safegate L-854, User Manual

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6.0 Operation
This section describes operation of the L-854 Radio Control Equipment.
Figure 7: Radio Control Equipment Controls and Indicators
6.1 Controls and Indicators
See Figure 7 , and refer to Table 10 . Startup procedures for the L-854 Radio Control Equipment are discussed below.
Table 10: Controls and Indicators
Part Purpose
Controls
POWER Controls primary AC power. The switch lights if AC power is present.
CARRIER TEST
Pressing this button simulates the detection of a carrier “click” on the operation frequency. Pressing the
button three times within 5 seconds will set the unit to the lowest brightness setting.
TIMER RESET Pressing this button will reset the timer to the start of the timer selected by the TIMEOUT switch.
PANEL TEST This button will light all indicators visible on the front panel while the switch is pressed down.
TIMEOUT
This switch will set the timer to hold lighting controlled by the RCE to the indicated time: 1, 15 (FAA
standard), 30, 45 or 60 minutes. The one minute setting is used for internal testing.
SENSITIVITY Min/Max
This will adjust the sensitivity of the receiver to prevent the reception of unwanted signals. This is
especially important for Unicom frequencies used by nearby airports. Setting the control closer to Min
will prevent transmissions further away from keying the L-854 RCE.
VOLUME Min/Max This will adjust the volume of transmissions monitored by the internal speaker and the headphones.
DECODER Enable/Disable
Setting the DECODER switch to Disable will prevent any signal from activating the L-854 Radio Control
Equipment. The same function can be accomplished through a remote signal through the Terminal
Block. Note that the STATUS light will go off when set to the Disable position.
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