V10/V7.5/V5/V3.5 Installation and Operation Manual Page 3-7
Section 3 Operating Instructions Issue 3.5
Table 3-2: Front Panel - Control Section Controls and Indicators
PANEL
MARKING
DESCRIPTION
Power Increase
Push button switch that initiates the GUI’s preset screen when pressed
initially. Further pressing increases the RF output power level of the
active preset. RF power is increased from minimum to maximum (see
Table 1-1 for maximum power rating for each mode). In analog (FM)
mode each step increases the output voltage of the switching power
supply modules as needed to achieve a power increase of 100 W
(V10/V7.5) or 50 W (V5/V3.5). In hybrid (FM+HD) or all-digital (HD)
mode each step increases the RF drive from the M50 exciter to
achieve a power increase of 1% of the rated power. Pressing and
holding the switch increases the rate of power change. The power
level will roll over to minimum if you increase above maximum power.
A power change is activated by pressing the GUI’s Save soft-key.
Power Decrease
Push button switch that initiates the GUI’s preset screen when pressed
initially. Further pressing decreases the RF output power level of the
active preset. RF power is decreased from maximum to minimum (see
Table 1-1 for minimum power rating for each mode). In analog (FM)
mode each step decreases the output voltage of the switching power
supply modules as needed to achieve a power decrease of 100 W
(V10/V7.5) or 50 W (V5/V3.5). In hybrid (FM+HD) or all-digital (HD)
mode each step decreases the RF drive from the M50 exciter to
achieve a power decrease of 1% of the rated power. Pressing and
holding the switch increases the rate of power change. The power
level will roll over to maximum if you decrease below minimum power.
A power change is activated by pressing the GUI’s Save soft key.
Local
Push button switch that sets control of transmitter functions to switches
on the front panel. When its integral lamp is on (amber) (by pressing the
switch), Local control has been selected. When Local is selected, all of
the remote control circuits (except the external interlock) are disabled.
Remote
Push button switch that sets control of transmitter functions to remote
control circuits. When its integral lamp is on (amber) (by pressing the
switch), Remote control has been selected. When Remote is selected,
all pushbutton switches on the transmitter’s front panel, except the RF
Off switch, are disabled and have no influence. The RF Off switch is still
enabled to ensure the RF power stage can be turned off locally in the
event of an emergency.
RF On
Push button switch that turns on the RF power stage and cooling fans
when it is pressed. Its integral lamp is on (amber) when the RF power
stage is on and the external interlock circuit is intact. The transmitter will
operate at the level stored in the selected power preset.
RF Off
Push button switch that turns off the RF power stage when it is pressed.
Its integral lamp will be on (amber) when the RF power stage is off.
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