Sca input (bnc) (active on fm and sg styles only) – Omnia Audio Omnia.ONE User Manual
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output impedance to either 5 ohms (the factory setting) or 75 ohms. The default setting is appropriate for the
vast majority of exciter connections. However, in the event that a higher source impedance is required, a jumper
can be moved (one for each composite output) on the motherboard to change the source impedance to 75 ohms.
For reference, JP10 is for Composite #1, and JP9 is for Composite #2.
Jumpers JP7 & JP8 are also available if you need to limit the maximum peak-to-peak output voltage from the
composite outputs to 4v p-p instead of the normal 10v p-p. They default to the Normal (10v p-p) setting.
19 kHz Sync Output (BNC) (Active on FM and SG Styles Only)
This TTL-level 19 kHz square wave output can be used as the reference signal for most RDS or SCA generators
that operate at 57 kHz or other multiple of the 19 kHz pilot frequency. This Sync output is phase and frequency
locked to the stereo pilot. When this signal is used to synchronize an external SCA or RDS generator, this
locking assures that no difference frequencies exist which may cause intermodulation components between the
pilot and the SCA signal.
SCA Input (BNC) (Active on FM and SG Styles Only)
Any SCA or RDS signal above 53 kHz can be added to the composite outputs of the Omnia.ONE by connecting
the signal to the SCA INPUT connector. The SCA signal is mixed in the analog domain directly into both
composite outputs. A high-pass filter on the SCA input provides SCA to main-channel crosstalk protection. The
SCA injection level can be adjusted using the rear panel Gain trimpot.
AES/EBU Digital Input, AES/EBU External Sync Input, and AES/EBU Output
(GREEN Male XLR)
(GREEN Female XLR)
(RED Female XLR)
The digital AES/EBU (AES-3) inputs (IN and EXT. SYNC) use industry-familiar RJ-45 connectors and utilize the
StudioHUB+ wiring standard
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. They accept any sampling rate between 32kHz and 96kHz. No user adjustment of the
sample rate is necessary on the AES-3 input as a high-quality digital sample rate converter is built in.
There is one AES-3 output on a standard RJ-45 connector that provides either an internally generated output sample
rate of 48 kHz or the sample rate can be locked to an external AES/EBU signal applied to pins 3 & 6 of the the AES
IN / SYNC IN connector or to the AES/EBU input signal. These options are selectable using the “Samp. Rate”
setting in the Output submenu of the Input/Output menu.
Note: The analog and digital outputs are active simultaneously.
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More information about the StudioHUB+
wiring scheme can be found at:
For your convenience, two XLR adaptor cables are supplied with the unit. The male XLR lead with the GREEN
shrink tubing is used for AES OUT. The male XLR lead with the RED shrink tubing is not used.
The female XLR lead with the GREEN shrink tubing is used for AES IN and the female XLR lead with the RED
shrink tubing is used for AES EXTERNAL SYNC IN.