---
title: 📡 How to Design a DAS Network
description: This guide walks you through creating a Distributed Antenna System (DAS) design, adding components, connecting them, and visualizing signal distribution.
---

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# 📡 How to Design a DAS Network

## This guide walks you through creating a Distributed Antenna System (DAS) design, adding components, connecting them, and visualizing signal distribution.

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### 🏢 Step 1: Open DAS Design

- Start with your **indoor project** (walls, doors, and floor already in place).
- On the **left sidebar**, click **DAS** (or press **D**).
- If components exist, they’ll be listed — otherwise, click **Add Components**.

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### ⚙️ Step 2: Add a Signal Source

1. Select **Signal Source** as your component type.
2. Choose your **vendor**.
3. Define:
   
     - **Number of ports**
     - **Carriers** (add multiple carriers with different power levels)
4. The signal source now appears in your component list.

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### 📡 Step 3: Add Remote Units (ROUs)

- Place **remote units** (e.g., one here, here, and here).
- Click on a remote unit to view:
  
    - **Bands supported**
    - **Transmission power**

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### 🔗 Step 4: Connect with Fiber Optics

- Use **fiber optic connections** to link your signal source and remote units.
- Example: connect signal source → ROUs.
- Add **antennas** (e.g., place three) and connect them with fiber optics.

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### 📊 Step 5: View Bands

- At the top, you can see which **bands** are active.
- Example: If the signal source supports *N41*, you’ll see it listed in the DAS view.

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### 🔀 Step 6: Daisy-Chain Remote Units

- Connect ROUs in a **daisy-chain** using fiber optics.
- This extends coverage and signal distribution.

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### ➗ Step 7: Build a Passive Network

1. Add a **1x2 splitter**.
2. Connect ports with **QAX cables**:
   
     - Connect from splitter → remote units.
     - Ensure correct power flow.
3. As you move cables, the system calculates **attenuation** and displays the **updated signal power**.

---

✅ Your indoor DAS design is now complete with signal sources, ROUs, antennas, and passive components all connected.

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