46~550MHz Combined Agile Modulator Introduction It is one combined agile modulators unit that is developed according to space-saving, durable, and high performance design principle. It is composed of 10 modulators, 2 amplifiers and one highly efficient switching power supply that are all vertically installed in one 3U sized standard rack. For each modulator, concentrated power supply, and internal mixing mode are applied to allow system debugging simple and reliable. The 3U sized standard rack can either be installed on 19-inch cabinet, or is flexible to apply wall-hanging mode. Each modulator's channel is displayed by LED on front panel. You will easily change channel numbers to set up discretionary headend system within 47~550MHz. Features Double frequency conversion, modularized amplification. Video modulation depth, audio deviation, A/V ratio, output level are all controlled by CPU. The switching power supply adopted is applicable to voltage 100~200V. Equipped with built-in mixer, no need to install additional mixer. Specifications Item Unit Specifications RF Output Frequency MHz 47~550 System PAL B/G, D/K, M/N Max Output Level dB礦 ≥95 RF Output Range dB 20 V/A Ratio dB -13~20 Broadband Noise dB -60 Frequency Stability KHz ? Output Impedance Ω 75 Output Rejection Loss dB 16 Video Mod Depth % 87.5 Video Input level for 87.5% Vp-p 1 Differential Gain % ≤5 Differential Phase ?≤5 C/L Delay nsec ≤45 Frequency Response dB ?.75 Modulation Range % 72.5~90 Video IF Output Frequency MHz 906 Video S/N dB 60 Audio Input Level Vp-p 0.4 Input Impedance Ω 10K Audio Carrier Response MHz 4.5, 5.5, 6.0, 6.5 Deviation dB ?.5 Pre-emphasis Msec 50 General Power Supply V 90~250 Fuse A 20-0.5 Temperature Range ℃ 0~40 Connectors Video Audio input, IF loop and RF output are all type F.