Nautel VSHD Exciter, Инструкция по эксплуатации

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VSHD Exciter Technical Instruction Manual
Page 3-17
Section 3 Operation Issue 2.0
Figure 3-16: HD Optimizer Screens
Select ON to allow the optimizer to adjust the PA voltage
setting to maximize efficiency based on the transmitter
output spectrum. Depending on other settings in this
section, it may require other actions to maintain the
transmitter’s compliance. Select OFF to disable. When
disabled, other HD Optimizer settings will have no effect .
Select ON to enable a reduction in IBOC injection (digital
power) if the spectrum mask requires it. Select OFF to
disable this setting.
Set the desired clearance (between -10 dB and 0 dB)
from the spectral mask. The default setting is -1 dB,
which will maintain a 1 dB clearance from the mask for
maximum efficiency. This setting will not cause any
reduction in output power.
Select ON to enable a reduction in the power set-point if
the spectrum mask requires it. Select OFF to disable this
setting.
Sets the value (between -10 dB and 10 dB) that is
considered to be absolutely required. If this level is
exceeded, the digital power from the transmitter will be
reduced if the PA voltage is at maximum. If the spectral
mask still cannot be met and the setting for it is enabled,
the transmitter power set-point will be reduced. Default
setting is 0.0 dB.