Products VIAVI - Vertex RF Channel Emulator Modular architecture Scalable from 2×2 up to 16×16 Freq Range: 380MHz to 3.85GHz Low end extension down to 30MHz High end extension up to 5.95GHz Channel BW: 40MHz Options 100, 200, 400, 600, 800, 1000 and 1200MHz Doppler Shift: ± 4kHz Options ± 12kHz and ± 1.95MHz Delay 4msec Option 2sec (40MHz) / 1sec (>40MHz)