Sirio Telflon RG303 Coax Cable (4 meter) — 2000 Watts Review PartyLamb Accessories July 31, 2018November 10, 2018Antennas, CB & Two-Way Radios, Electronics, Portable Audio & Video, Sirio Antenna 0 Comment Sirio Telflon Coax RG303, 4 meters, for max 2000 Watts, to use with Sirio Turbo-5000 and Performer-5000. Made In Italy Sirio Telflon Coax RG303, 4 meters, for max 2000 Watts, to use with Sirio Turbo-5000 and Performer-5000.