The Toner TAMM is a professional frequency agile modulator designed to fit most of the industries popular 2RU chassis that hold up to 12 modules such as modulators, demodulators, and agile modulators. Some of the chassis that are compatible are: Blonder Tongue MIRC, Drake RMM12, and Pico MPC-12, all available from Toner. The TAMM is a high quality vestigial sideband frequency agile audio/video modulator for PAL television systems. The unit allows front panel channel selection of standard off air broadcast and cable television channels up to 862 MHz by use of push button synthesized tuning. The heterodyne conversion system, in conjunction with a SAW filter,ensures optimum vestigial selectivity for adjacent channel operation. The frequency agile modulator is designed to accept any standard negative sync video at 1.0 Vp-p level.