//AM Mode選択時の処理
        private void radioButton15_CheckedChanged(object sender, EventArgs e)
        {
          if (radioButton15.Checked)
            {
            radioButton15.BackColor = Color.GreenYellow;
            radioButton26.Checked = true; //3kHz Filter ON
            checkBox7.Checked = false; //BFO Off
            textBox10.Text = ""; //
            }

          else
          {
              radioButton15.BackColor = Color.DarkGray;
          }
        }
//LSB Mode選択時の処理
        private void radioButton14_CheckedChanged(object sender, EventArgs e)
        {
            if (radioButton14.Checked)
            {
                radioButton14.BackColor = Color.GreenYellow;
                radioButton24.Checked = true; //2.4kHz Filter ON
                checkBox7.Checked = true; //BFO ON
                textBox10.Text = "-1500"; //-1500Hz
            }
            else
            {
                radioButton14.BackColor = Color.DarkGray;
            }
        }
//USB Mode選択時の処理
        private void radioButton31_CheckedChanged(object sender, EventArgs e)
        {
          if (radioButton31.Checked)
            {
            radioButton31.BackColor = Color.GreenYellow;
            radioButton24.Checked = true; //2.4kHz Filter ON
            checkBox7.Checked = true; //BFO ON
            textBox10.Text = "1500"; //+1500Hz
            }
          else
          {
              radioButton31.BackColor = Color.DarkGray;
          }
        }
//CWL Mode選択時の処理
        private void radioButton32_CheckedChanged(object sender, EventArgs e)
        {
          if (radioButton32.Checked)
            {
            radioButton32.BackColor = Color.GreenYellow;
            radioButton22.Checked = true; //0.5kHz Filter ON
            checkBox7.Checked = true; //BFO ON
            textBox10.Text = "-700"; //-700Hz
            }
          else
          {
              radioButton32.BackColor = Color.DarkGray;
          }
        }
//CWU Mode選択時の処理
        private void radioButton35_CheckedChanged(object sender, EventArgs e)
        {
          if (radioButton35.Checked)
            {
            radioButton35.BackColor = Color.GreenYellow;
            radioButton22.Checked = true; //0.5kHz Filter ON
            checkBox7.Checked = true; //BFO ON
            textBox10.Text = "700"; //700Hz
            }
          else
          {
              radioButton35.BackColor = Color.DarkGray;
          }
        }
//FM Mode選択時の処理
        private void radioButton16_CheckedChanged(object sender, EventArgs e)
        {
            if (radioButton16.Checked)
            {
            radioButton16.BackColor = Color.GreenYellow;
            radioButton28.Checked = true; //6kHz Filter ON
            checkBox7.Checked = false; //BFO Off
            textBox10.Text = ""; //700Hz
             }
          else
          {
              radioButton16.BackColor = Color.DarkGray;
          }
        }