# License

FreeTRX is a fork of the **OpenGD77** firmware and inherits its license. The
original license terms of the OpenGD77 source are reproduced below and apply in
full to this project, including all modifications made in this fork.

> **Note on the license:** this is a modified **BSD 3-Clause** license with an
> additional **non-commercial** clause (clause 4). Because of that clause it is
> **not** an OSI-approved open-source license and is **not compatible with the
> GNU GPL** — the code cannot be relicensed under the GPL or any permissive
> license. Commercial use is prohibited.

---

    Copyright (C) 2019-2024 OpenGD77 firmware developers

    Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions
    are met:

    1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

    2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer
       in the documentation and/or other materials provided with the distribution.

    3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived
       from this software without specific prior written permission.

    4. Use of this source code or binary releases for commercial purposes is strictly forbidden. This includes, without limitation,
       incorporation in a commercial product or incorporation into a product or project which allows commercial use.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
    ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
    USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

---

Individual source files carry their own copyright headers (Kai Ludwig DG4KLU,
Roger Clark VK3KYY, Daniel Caujolle-Bert F1RMB and other OpenGD77 contributors);
those notices are retained. See also the original project README in
[`README.OpenGD77.md`](README.OpenGD77.md).