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GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER
PAGE 3.2.108 VERSION 0.2 2014-07-23
Spectrum/Efficiency Optimizer
The Spectrum/Eff. Optimizer page (see Figure 3.2.91 ) allows users to optimize the transmitter’s
spectrum and/or efficiency by adjusting the following parameters:

Optimization Enabled
- Select Yes or No. Selecting Yes allows 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.
 Reduce Digital Power If Required: Select Yes or No. Selecting Yes enables a reduction in injection
level (digital power) if the spectrum mask requires it.
 Reduce Power Set-Point If Required: Select Yes or No. Selecting Yes enables a reduction in the
transmitter power set-point if the sepctrum mask requires it.

Desired Mask Delta
- 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 settings will not cause any reduction in output power.

Required Mask Delta
- 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.
Figure 3.2.91: System Settings - Spectrum/Efficiency Optimizer
NOTE
: You can also perform HD optimization using the controller UI (see Optimizing HD Parameters, on
page 3.2.118 ).