# VARPA Project

```
  _   _____   ___  ___  ___ 
 | | / / _ | / _ \/ _ \/ _ |
 | |/ / __ |/ , _/ ___/ __ |
 |___/_/ |_/_/|_/_/  /_/ |_|
```

This repository contains the source code
for:

> `VARPA`: `A Variable Power Amplifier`

An open source programmable VHF power amplifier.

# RF Primer

If you are new to the topic, you can read:<br>
[https://journal.lunar.sh/2024/rf-primer.html](https://journal.lunar.sh/2024/rf-primer.html)

# License

```
This code may not be copied, reproduced, or distributed
without prior written permission. 

All rights reserved. Copyright (c) 2025.

Note:
The content in this repository is strictly intended for
educational purposes only.
```

See `LICENSE.txt` for more info.

# Info

```
|----- ( File Structure )
|----- /firmware         C firmware source.
|----- /pcb              PCB files for VARPA system modules.
|----- /scripts          Calibration script and TUI application.
|----- /resources        Datasheets and misc resources.
|----- VARPA.pdf         Compiled Latex project report.
|----- LICENSE.txt       VARPA license.
```

# Signature

```
+---------------------------------------+
|     .-.       .-.       .-.           |
|    /   \     /   \     /   \     +    |
|         \   /     \   /     \   /     |
|          "_"       "_"       "_"      |
|                                       |
|  _   _   _ _  _   _   ___   ___ _  _  |
| | | | | | | \| | /_\ | _ \ / __| || | |
| | |_| |_| | .` |/ _ \|   /_\__ \ __ | |
| |____\___/|_|\_/_/ \_\_|_(_)___/_||_| |
|                                       |
|                                       |
| Lunar RF Labs                         |
| https://lunar.sh                      |
|                                       |
| Research Laboratories                 |
| Copyright (C) 2022-2025               |
|                                       |
+---------------------------------------+
```