The VM-100R video modulator is a high-performance video modulator that provides high signal-to-noise ratios and minimum transmitted information distortion. Applications include multiloop terrestrial and satellite links where cumulative distortions render conventional modulator performance unacceptable. These modulators are designed to meet or exceed RS-250C short-haul and IESS-306 standards, and are compatible with NTSC, PAL and SECAM video formats. A wide selection of optional features make the modulators compatible with B-MAC, D2-MAC, SIS, IRDETO and encrypted NTSC, PAL/SECAM video formats. All operating parameters are fully programmable from the front panel or optional remote interface port without the need for additional test equipment or manual adjustments.