---
title: "Setting Up the Omnia.9 to Broadcast in Mono"
slug: "setting-up-the-omnia9-to-broadcast-in-mono"
updated: 2024-12-17T14:18:18Z
published: 2024-12-17T14:18:18Z
canonical: "docs.telosalliance.com/setting-up-the-omnia9-to-broadcast-in-mono"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.telosalliance.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Setting Up the Omnia.9 to Broadcast in Mono

## Scope

This document explains how to set up the Omnia.9 to broadcast in Mono.

## Description/Question

Q: I need to set my Omnia.9 to broadcast in FM mono. What do I need to set to do this?

## Answer

A: Each input's channel mode can be set in System / I/O Options / Source Adjustment using the "Channels:" dropdown:

![](https://cdn.document360.io/57e3cd80-d493-453c-9672-ad1b043dadc3/Images/Documentation/309a4ef2-f7e5-4e92-b657-8ea019146522-o-9-input-channels.png?sv=2026-02-06&spr=https&st=2026-11-12T11%3A57%3A05Z&se=2026-11-12T12%3A57%3A05Z&sr=c&sp=r&sig=5WMfvaDyiicSCvbHgeCTsnYMiVe5YeT%2FzCxWiJQ1HpU%3D)

"L/R" is the normal stereo mode, "R/L" is reversed stereo mode and the mono modes are "L+R" (sums both channels to mono), mono "L" (takes the left input channel and feeds it to both channels) & mono "R" (takes the right input channel and feeds it to both channels).

To run in full mono, turn off the 19kHz stereo pilot and stereo generator: In System / I/O Options / FM Options / MPX, set the Pilot Level to 0.0% and turn "Auto Pilot" on (which ensures full mono with no stereo sideband activity even if the input audio is stereo).

Here it's set for normal stereo:

![](https://cdn.document360.io/57e3cd80-d493-453c-9672-ad1b043dadc3/Images/Documentation/ed296b6e-5877-448a-a615-16c24eabf329-o-9-mpx-stereo.png?sv=2026-02-06&spr=https&st=2026-11-12T11%3A57%3A05Z&se=2026-11-12T12%3A57%3A05Z&sr=c&sp=r&sig=5WMfvaDyiicSCvbHgeCTsnYMiVe5YeT%2FzCxWiJQ1HpU%3D)

And here it's set for mono:

![](https://cdn.document360.io/57e3cd80-d493-453c-9672-ad1b043dadc3/Images/Documentation/6359d6a2-8e4e-433d-a07e-0dd8f8e0b214-o-9-mpx-mono.png?sv=2026-02-06&spr=https&st=2026-11-12T11%3A57%3A05Z&se=2026-11-12T12%3A57%3A05Z&sr=c&sp=r&sig=5WMfvaDyiicSCvbHgeCTsnYMiVe5YeT%2FzCxWiJQ1HpU%3D)

## Let us know how we can help

If you have further questions on this topic or have ideas about improving this document please [contact us](https://www.telosalliance.com/support-request).