Cat visison provides a wide range of digital headend products to serve cable and satellite television market in india. These products incorporate advanced mechanism and modern equipments to provide better performance. As part of these products, the company offers q101 qam modulator. This is a digital video broadcast-cable tv qam full frequency range agile modulator. It conforms to itu-t j.83 dvb-c standard. Q101 qam modulator supports pid remapping, supports 3 types of pid. It comes with following salient features: