Livewire; Stereo Generator - Omnia ONE FM Installation And Operation Manual

Stereo audio processor
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<-Exit
<-Exit
Click on this option to return to the Input/Output menu.

Livewire

There is but a single control in this submenu: Disable Livewire. If selected, you will be asked if you really
want to disable Livewire.
This is to be used only in non-Livewire systems if the Livewire packets "flood" your network when trying to
use an Ethernet remote control connection.

Stereo Generator

SCA Input Gain (Trimpot On Rear Panel)
The SCA Input Gain control is an analog trimpot and does not appear in the menu. This trimpot is located
just above the SCA Input BNC jack on the rear panel.
Signals input to the SCA jack are simply mixed into both composite outputs through the Gain trimpot.
The gain range is from 0.034 (-29dB) to 1.35 (+2.6dB). At the lowest gain setting, you can feed it a 10V
SCA signal and get 8.6% injection on a 3.6V composite output setting. At the highest gain setting, you can
feed it a 0.25V SCA signal and get 8.6% injection on a 3.6V composite output setting. (The composite +
9% pilot should be 3.6 Vp-p in these cases. The SCA adds to this, making the total higher and the SCA
8.6% of the total).
There are five controls in the Stereo Generator menu and each will be explained in the order in which they
appear in the menu.
Comp #1]
[
[Comp #2]
These composite MPX output level controls individually set the level at the two separately
buffered rear-panel composite outputs over a range of 0 to 10 volts in precise 0.05v increments.
Rotate the jog-wheel to select the desired output, click and rotate to adjust the modulation level for
each composite output. Once the desired peak modulation level is displayed, click the jog-wheel to
set the level and return to the Stereo Generator menu.
NOTE: Always use typical program material and a calibrated modulation monitor to properly set
modulation. To aid quick adjustment, it sometimes helps to advance the Clipper Drive control
before adjusting the composite outputs. Note that reference line-up tones applied at the Omnia's
input cannot be used since the RMS level of a steady state tone does not crest at 100%
modulation.
[Pilot Lvl] (19 kHz Stereo Pilot Level)
Sets the pilot injection level from 4.0% to 12.0%, in 0.1% steps, relative to 100% modulation. To
defeat the pilot, simply adjust the Pilot Injection control below 4% and the control indicates "Off".
[Pilot Phs] (Pilot Phase)
This parameter sets the phase relationship between the 19 kHz pilot and the 38 kHz suppressed
carrier. The system default is 0.0º. The performance of the DSP based digital stereo generator is
Click on this option to return to the Output submenu
33

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