/// <summary>電力(抽象)</summary>
public abstract class AbsPower {
  /// <summary>ID</summary>
  public ushort Id {
    get {
      return this.id;
    }
  }



  /// <summary>値</summary>
  public double Value {
    protected set {
      this.value = value;
    }
    get {
      return this.value;
    }
  }



  private ushort id;
  private double value;



  /// <summary>コンストラクタ</summary>
  /// <param name="id">id</param>
  public AbsPower(ushort id) {
    this.id = id;
  }
}



/// <summary>出力電力</summary>
public sealed class TxPower : AbsPower {
  public static readonly ushort Min = 1;
  public static readonly ushort Max = 81;

  /// <summary>対応する出力電力の配列</summary>
  public static TxPower[] Values {
    get {
      return Enumerable.Range(Min, Max)
        .Select(id => new TxPower((ushort)id))
        .ToArray();
    }
  }


  /// <summary>コンストラクタ</summary>
  /// <param name="id">出力電力ID(1 - 81)</param>
  public TxPower(ushort id) : base(id) {
    if(Min < this.Id || this.Id > Max) {
      throw new Exception(string.Format(
            "{0} ~ {1} 間の値を指定してください.",
            Min,
            Max));
    }

    this.Value = 10.0f + (id - 1) * 0.25;
  }
}

/// <summary>受信感度</summary>
public sealed class RfSensitivity : AbsPower {
  public static readonly ushort Min = 1;
  public static readonly ushort Max = 42;

  /// <summary>対応する受信感度の配列</summary>
  public static RfSensitivity[] Values {
    get {
      return Enumerable.Range(Min, Max)
        .Select(id => new RfSensitivity((ushort)id))
        .ToArray();
    }
  }


  /// <summary>コンストラクタ</summary>
  /// <param name="id">受信感度ID(1 - 42)</param>
  public RfSensitivity(ushort id) : base(id) {
    if(Min < this.Id || this.Id > Max) {
      throw new Exception(string.Format(
            "{0} ~ {1} 間の値を指定してください.",
            Min,
            Max));
    }

    this.Value = (this.Id == Min)
      ? -80.0f
      : -70.0f + (this.Id - 2);
  }
}