OMB EM 1000 HE DIG PLUS COMPACT - Audio Operation Modes

FM TRANSMITTER
TR EM 1000 HE DIG PLUS COMPACT
Technical Manual 1v2 November 2019 21
2.1 Audio Operation Modes.
This section describes how to select the various available operating modes, and how to make
audio connections according to your requirements.
The transmitter is equipped with numerous characteristics specific to high-fidelity systems; as
such, it should be connected to modulating signals with the same care as a Hi-Fi system,
avoiding ground loops as much as possible. Under these conditions, you will obtain optimal
performance.
According to the operating mode and type of modulation source available, you can connect to
the modulation inputs in various ways:
• Monophonic transmission from an audio signal, via the main mono channel
• Monophonic transmission from a stereophonic audio signal, using the internal stereo
encoder
• Stereophonic transmission from a stereophonic audio signal, using the internal stereo
encoder
• Monophonic or stereophonic transmission from an external encoder or radio link receiver.
The device is also able to transmit an auxiliary signal (RDS or SCA), connected to the rear AUX
input as described below.
2.1.1 Mono transmission from a mono signal
1) Connect the RIGHT connector to the monophonic audio signal. Connection to the LEFT
input is not necessary.
2) Using the SETUP menu, set the modulation mode to Mono.
3) Confirm or change pre-emphasis according to the local standard.
2.1.2 Mono transmission from a stereo signal
1) Connect the RIGHT connector to the right audio channel.
2) Connect the LEFT connector to the left audio channel.
3) Using the SETUP menu set the modulation mode to Mono L+R.
4) Confirm or change pre-emphasis according to the local standard.
2.1.3 Monophonic or stereophonic transmission from a multiplex signal
If you wish to use a multiplex signal (MPX) originating, for example, from an external encoder
or a radio link receiver, follow the steps below: