> For the complete documentation index, see [llms.txt](https://indoor.router.works/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://indoor.router.works/ezr24/manual/sim-card-and-power/signal-quality.md).

# Signal Quality

### Mobile Networks Mode

There are various mobile networks, 2G, 3G, 4G, and even the newest 5G NR networks. Please take note of the signal bars and the symbol in the status bar of the mobile phone and compare them with the chart below.

<table><thead><tr><th width="146.97590361445782">Symbol</th><th width="314">Mobile Networks</th><th>Common Speed</th></tr></thead><tbody><tr><td>4G (LTE)</td><td>Fourth generation or Long term evolution<br>also known as LTE or WiMax</td><td>100Mbits/s+</td></tr><tr><td>3G</td><td>Third Generation<br>also known as UMTS / WCDMA / CDMA2000</td><td>2Mbits/s</td></tr><tr><td>2G</td><td>GPRS <br>(General Packet Radio Service)</td><td>50Kbits/s</td></tr><tr><td>E</td><td>EDGE <br>(Enhanced Data GSM Evolution)</td><td>100Kbits/s</td></tr><tr><td>H/H+</td><td>HSPA<br>(High-Speed Packet Access)</td><td>10-100Mbits/s</td></tr><tr><td>No Symbol</td><td>If signal bars get more than 1 bar<br>you can use voice call</td><td>No</td></tr></tbody></table>

###

### Signal Strength

We should input a "Fair" signal level for the 4G router (refer to the chart below), which equals approximately 2-bar 4G LTE signals on a mobile phone.

You can run a basic test on a mobile phone. Insert the SIM card that is going to be used on the router on a mobile phone. Disable Wi-Fi on the mobile phone and go around to check its network type and signal bars. Then, choose a location with a strong and stable 4G-LTE signal reception.&#x20;

Please refer to the [signal test tutorial](https://www.outdoorrouter.com/field-test-4g-mobile-signal-strength/).

<figure><img src="https://758914960-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LvFmeL2Pv0EF2-7nON9%2F-LxQ1c6Ik5UlOWOQ9j5L%2F-LxZnOQQTX7lHA8gIWgm%2Fimage.png?alt=media&#x26;token=fe591b85-17e4-4a27-8877-fb0010915884" alt=""><figcaption><p>4G Signal Quality Chart</p></figcaption></figure>

{% hint style="info" %}
The numerical value of 2G and 3G networks is RSSI standard.&#x20;

The LTE network is RSRP standard. RSRP means Reference Signal Receive Power.

The signal values are negative numbers. A number that is closer to zero means a stronger signal. For example, -90 dB is more robust than -100 dB.
{% endhint %}


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://indoor.router.works/ezr24/manual/sim-card-and-power/signal-quality.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.