there was a lot of cool lighting, smoke machines, there were a couple of dancers, as well. the point where the fabric is formed is called the fell. the course will provide students with the knowledge and hands-on experience to reduce their chances of being involved in a crash. the unit was factory set with one crystal which could be changed to a different frequency in the field by replacing the crystal and re-tuning the unit. he observed it for the next few days and came to decision that it is a new one. 