---
title: Aqua Cobalt with MicroMPX GPS SFN setup
description:    How to setup and enable GPS SFN (Single Frequency Network) on a cobalt transmitter.
---

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1. [Aqua Broadcast Knowledgebase](https://kb.aquabroadcast.net/?hsLang=en)
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# Aqua Cobalt with MicroMPX GPS SFN setup

 

**Please note a MicroMPX SFN GPS license is required.**

1. Connect GPS Module: Plug the USB cable from the GPS module into the USB port on the Cobalt unit.
2. Attach the SMA to BNC adapter to one end of the BNC cable.

![](https://kb.aquabroadcast.net/hs-fs/hubfs/image-png-Sep-15-2025-01-50-16-8502-PM.png?width=85&height=48&name=image-png-Sep-15-2025-01-50-16-8502-PM.png)![](https://kb.aquabroadcast.net/hs-fs/hubfs/image-png-Sep-15-2025-01-50-21-1553-PM.png?width=136&height=58&name=image-png-Sep-15-2025-01-50-21-1553-PM.png)

1. Use the BNC cable to connect the 1 PPS and 10 MHz signals from the GPS module to the Cobalt unit.

![](https://kb.aquabroadcast.net/hs-fs/hubfs/image-png-Sep-15-2025-01-49-49-3328-PM.png?width=688&height=524&name=image-png-Sep-15-2025-01-49-49-3328-PM.png)

 

**Plug in GPS Dongle:**   
Connect the USB GPS dongle to the MicroMPX encoder.

![](https://kb.aquabroadcast.net/hs-fs/hubfs/image-png-Sep-15-2025-01-50-57-5950-PM.png?width=688&height=179&name=image-png-Sep-15-2025-01-50-57-5950-PM.png)

 

**Enable MicroMPX**

1. Power on both the Cobalt unit and the MicroMPX encoder.
2. On the Cobalt front panel, navigate to Network.

![](https://kb.aquabroadcast.net/hs-fs/hubfs/image-png-Sep-15-2025-01-51-43-8176-PM.png?width=314&height=258&name=image-png-Sep-15-2025-01-51-43-8176-PM.png)

1. Open a web browser and enter the **IP address** shown on the Cobalt front panel.
2. Log into the Cobalt web interface.
3. Go to the MicroMPX section , enable the MicroMPX service and click Save.

**![](https://kb.aquabroadcast.net/hs-fs/hubfs/image-png-Sep-15-2025-01-52-39-2562-PM.png?width=688&height=463&name=image-png-Sep-15-2025-01-52-39-2562-PM.png)**

**Enable GPS SFN (Single Frequency Network)**

1. In the Cobalt web interface, go to the MicroMPX section
2. Turn ON the MicroMPX GPS SFN.
3. Click Save.

![](https://kb.aquabroadcast.net/hs-fs/hubfs/image-png-Sep-15-2025-01-52-53-4611-PM.png?width=688&height=463&name=image-png-Sep-15-2025-01-52-53-4611-PM.png)

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