Nautel VS1, Operation And Maintenance Manual

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VS1 Operations and Maintenance Manual Operating the transmitter
Issue 3.1 2013-10-01 Page 2-89
Configuring an HD Powerboost Preset
In order to operate with HD PowerBoost, you must either load an existing HD PowerBoost preset or
create a character-specific preset name to allow the software to recognize the HD PowerBoost preset.
For general details on loading, editing and activating a preset, see
Editing or creating presets on
page 2-67 . For specific detail on creating HD PowerBoost presets, follow the naming convention
described below:
The preset name must begin with the characters 'PB' (not case sensitive), followed by a space or a "_"
character (underscore), and one or two numbers that indicate the IBOC power injection ratio level(s),
and finally the characters 'dBc' (e.g., PB -20 dBc). See
Figure 2.77 for examples of this naming
convention.
Figure 2.77: HD PowerBoost Preset Examples (shown using the Load button)
Injection ratios, which can be expressed in 0.1 dB increments, represent the nominal symmetric MP1
level. If only one number appears in the preset name, then symmetric mode is selected. If two
numbers appear in the preset name, the first number is applied to the lower sideband and the second
number to the upper sideband. The two numbers can be separated by a space or slash (/). The '-' sign
is optional.
For an HD PowerBoost preset, the
IBOC Injection
field should be set to -20 dB at all times.
-20 dB symmetric
HD PowerBoost preset
Asymmetric mode
HD PowerBoost preset