tbd-station-14/Content.Server/Interfaces/IRadio.cs

using Robust.Shared.Interfaces.GameObjects;
using System;
using System.Collections.Generic;
using System.Text;

namespace Content.Server.Interfaces
{
    public interface IRadio
    {
        IReadOnlyList<int> Channels { get; }

        void Receive(string message, int channel, IEntity speaker);

        void Broadcast(string message, IEntity speaker);
    }
}