Install iridium-toolkit

Here are the steps to install iridium-toolkit from source code on Ubuntu:

Open the terminal on your Ubuntu system.
Install the required dependencies by running the following command:
```
sudo apt-get install build-essential libssl-dev libpcap-dev
```
Download the iridium-toolkit source code by running the following command:
```
git clone https://github.com/muccc/iridium-toolkit.git
```
Change to the iridium-toolkit directory by running the following command:
```
cd iridium-toolkit
```
Run the following command to compile and install iridium-toolkit:
```
make && sudo make install
```

Note: You may need to configure your Iridium satellite modem before running iridium-toolkit. You can do this by connecting your modem to your computer and configuring it using the modem's configuration software. Once your modem is configured, you can use iridium-toolkit to decode and analyze data transmitted by the modem.