// SPDX-FileCopyrightText: 2026 Helge Eichhorn <git@helgeeichhorn.de>
//
// SPDX-License-Identifier: MPL-2.0
//! Communication systems and link budget analysis.
//!
//! This crate provides types and calculations for modelling radio communication systems,
//! antenna gain patterns, and link budget analysis.
use Kelvin;
/// Boltzmann constant in J/K.
pub const BOLTZMANN_CONSTANT: f64 = 1.380_648_52e-23;
/// Reference room temperature in Kelvin (per ITU-R).
pub const ROOM_TEMPERATURE: Kelvin = 290.0;