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

# Tunnels and Degrade Zones

> Configure tunnels, underpasses, and other areas where radio signal will be degraded!

![](https://docs-assets.sonoransoftware.com/sha256/3f/3f1fcb020ad2f8110f4e50e79e8c99a7e7a5ada879abb8225bf773b652eaf16d.png)

*Sonoran Radio - Tunnel Detection System*

[Video tutorial](https://www.youtube-nocookie.com/embed/IHNPs6aATQU)

## What are Degrade Zones?

Degradation zones are areas like tunnels, underground areas, or mountain valleys that would experience signal loss in a realistic scenario. [Custom voice effects](/radio/tutorials/usage/dispatch-panel/custom-voice-effects) will distort the audio more as signal loss increases.

## Creating and Modifying Zones

### Via Radio Panel

> **Degrade Zones via Panel**
>
> 1. Open **Customization** > **Game Integration** > **FiveM**.
> 2. Under **FiveM Zones**, choose your **Server** and select **Degrade Zones**.
> 3. Use the polygon, rectangle, or circle tool to draw a zone.
> 4. Select the zone to set its name, Z coordinates (floor and ceiling height), and degrade strength.
>
> ![FiveM Degrade Zones in Game Integration](https://docs-assets.sonoransoftware.com/sha256/95/9529460e0c097c0ecb11d14c2e41eec77e9a04a7c83f8cf2cfa7b3a0c6afa862.jpg)

### Via In-Game Menu

> **1. Accessing the Menu**
>
> Open the menu with the in-game `/radiomenu` command and select `Degradation Zones`
>
> ![](https://docs-assets.sonoransoftware.com/sha256/54/543db9a1f7b07e6261d8b93fdf735a0ab8c9253591bc25e24a20ec0a6e8013f4.png)
>
> *Sonoran Radio -*

> **2. Zone Configuration Options**
>
> In the `Degradation Zones` menu, you can specify the strength and add points to create a 3D zone.
>
> When creating a zone you can visualize via the drawn polygon and manipulate and move your last placed point using the on-screen controls
>
> ![](https://docs-assets.sonoransoftware.com/sha256/e4/e4338e1596ad482faf16002a488df1891b135401f54c0243f77367e6cbaaeed7.png)
>
> *Sonoran Radio - Degradation Zone Options*
>
> ![](https://docs-assets.sonoransoftware.com/sha256/ea/ea635ab5a854e1742677ddac208c042f6cc87c03cba87e561552c8313c02bfde.png)
>
> *Sonoran Radio - Degradation Zone Poly*
>
> `Strength`\
> \- The percent the signal strength will be cut by when inside the zone (0-1).\
> \- Example: 0.5 = 50% [voice effect](/radio/tutorials/usage/dispatch-panel/custom-voice-effects) degradation
>
> `Add Point to Zone`\
> \- Adds another point to the 3D zone
>
> `Undo Last Point`\
> \- Removes the last place point in the 3D zone
>
> `Min Z`\
> \- The minimum Z value (floor height) of the 3D zone
>
> `Max Z`\
> \- The maximum Z value (ceiling height) of the 3D zone
>
> `Finish Zone Creation`\
> \- Finishes the 3D zone and saves to the `tunnels.json` file
>
> `Cancel Zone Creation`\
> \- Cancels the 3D zone editor and closes the menu

> **3. View and Remove Configured Zones**
>
> Select `Edit Degradation Zone` in the menu and toggle on `Show Zones`. All configured zones on the map will be displayed in green. If the config.lua's `debug` mode is set to `true`, all zones will also be made visible.
>
> Use the `Select Zone` menu option to swap back and forth between zones. Your selected zone will be displayed in red.
>
> Use the `Delete Zone` menu option to delete the selected (red) zone.
>
> ![](https://docs-assets.sonoransoftware.com/sha256/e0/e0af62ec8d84b7ebc43f3c42698245558520e20bdf9dda9fe06bb197244a26b6.png)
>
> *Degradation Zone: Visible*
>
> ![](https://docs-assets.sonoransoftware.com/sha256/cb/cbf15920c67d4b054769d0a7397e4219be332c442439d7101312698a342924eb.png)
>
> *Degradation Zone: Selected*


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