private void sendRawChannels(int ch1, int ch2, int ch3, int ch4)
{
	byte[] buffer = new byte[11];

	//Header
	buffer[0] = 85;
	buffer[1] = 0;
	buffer[2] = 11;
	buffer[3] = 0;

	//Channels
	buffer[4] = (byte)(ch1 & 255);
	buffer[5] = (byte)(ch2 & 255);
	buffer[6] = (byte)(ch3 & 255);
	buffer[7] = (byte)(ch4 & 255);

	buffer[8] = 0;
	buffer[9] = 0;

	int sum = 0;
	for(int i = 0; i < 9;i++)
		sum += (int)buffer[i];
  
	buffer[10] = (byte)(sum % 256);
 
	sock.Client.Send(buffer);
	
}