# 5G modem

Source: https://forum.modalai.com/topic/2557/5g-modem
Category: Development Drones (https://forum.modalai.com/category/44/development-drones)
Tags: sentinel
Posted: 2023-08-11 09:25:59 UTC by M. al-khatib
Replies: 13 · Views: 2454

## M. al-khatib · 2023-08-11 09:25:59 UTC

Do I need a 5G network to utilize the Voxal Sentinel 5G modem?

## Reply by Eric Katzfey (ModalAI staff) · 2023-08-11 14:25:30 UTC

@M-al-khatib The modem also supports legacy technologies such as 4G. So the modem will still work on an LTE network.

## Reply by M. al-khatib · 2023-08-11 17:47:23 UTC (in reply to Eric Katzfey)

@Eric-Katzfey 
Can you provide me the operating steps?

## Reply by tom (ModalAI staff) · 2023-08-11 17:58:44 UTC (in reply to M. al-khatib)

@M-al-khatib https://docs.modalai.com/voxl-modem/

## Reply by Eric Katzfey (ModalAI staff) · 2023-08-11 17:59:37 UTC (in reply to M. al-khatib)

@M-al-khatib The modem and network do all that automatically. You don't have to tell it to go into 4G mode explicitly.

## Reply by M. al-khatib · 2023-08-11 22:34:30 UTC

After using this commands and connect my PC to Tailscale what can i do ?
![Screenshot from 2023-08-12 01-25-47.png](https://forum.modalai.com/assets/uploads/files/1691793085556-screenshot-from-2023-08-12-01-25-47.png) 
 ![Screenshot from 2023-08-12 01-28-59.png](https://forum.modalai.com/assets/uploads/files/1691793256337-screenshot-from-2023-08-12-01-28-59.png) 
![Screenshot from 2023-08-12 01-29-02.png](https://forum.modalai.com/assets/uploads/files/1691793267677-screenshot-from-2023-08-12-01-29-02.png)

## Reply by tom (ModalAI staff) · 2023-08-11 23:06:07 UTC (in reply to M. al-khatib)

@M-al-khatib You can connect your VOXL2 to the VPN as well and then you should be able to ping your VOXL2 from your PC

## Reply by M. al-khatib · 2023-08-12 05:55:40 UTC (in reply to tom)

@tom 
Can you provide me the steps to connect it to VPN ?

## Reply by Paul Carff · 2023-08-13 13:15:35 UTC (in reply to M. al-khatib)

@M-al-khatib 
I followed the directions :https://docs.modalai.com/sentinel-user-guide-connect-gcs/#vpn-setup
There is a link in the middle 
 "In order to install the Tailscale client on VOXL 2, follow these instructions: Installing Tailscale on Ubuntu 18.04."
That worked settng up TailScale for me very easily.

## Reply by tom (ModalAI staff) · 2023-08-14 16:47:54 UTC (in reply to Paul Carff)

@Paul-Carff @M-al-khatib Thanks Paul! Yes, you can follow the steps here: https://tailscale.com/download/linux/ubuntu-1804

## Reply by M. al-khatib · 2023-08-26 05:11:56 UTC (in reply to tom)

@tom 
How can I determine the type of network (3G, 4G, 5G) that I'm currently connected to, and shouldn't the modem grant me an internet connection when I'm in the process of connecting to it?

## Reply by tom (ModalAI staff) · 2023-08-28 16:10:32 UTC (in reply to M. al-khatib)

@M-al-khatib Here is an example of sending an AT command to a Quectel modem from VOXL2, the following will tell you what type of network connection you have:

```
echo -ne "AT+QENG=\"servingcell\"\r" | busybox microcom -t 1000 /dev/ttyUSB2
```

## Reply by M. al-khatib · 2023-09-11 19:20:17 UTC (in reply to tom)

@tom 
My video link has a weak signal. How can I improve the signal to achieve a 4K video stream for Q Ground Control? Additionally, I have another question: I'm using a 5G SIM card, but when I connect it to the modem, my PC doesn't receive internet.

## Reply by tom (ModalAI staff) · 2023-09-11 19:37:41 UTC (in reply to M. al-khatib)

@M-al-khatib Video quality is going to be largely dependent on the cellular coverage in your area.

For your second question, can you give me more details on the setup you're trying? Are you connecting a standalone modem to your PC?