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台湾纬能广电模组式捷变调制器WAM520

台湾纬能广电模组式捷变调制器WAM520

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WAM-520 模组式捷变调制器        射频(RF)指标    输出频率范围  :PAL-B/G 48 to 860 MHz;                            PAL-D/K, SECAM 48 to 860 MHz                            NTSC 54 to 860 MHz输出电平           :+ 45 dBmV (minimum 15dB adjustment range.)输出阻抗           :75 Ohms图像伴音功率比     :-9 ~ -30dBc连续可调频率度     :± 5KHZ声音频率精稳度     :PAL-B/G          5.5MHz ± 5KHZPAL-D/K, SECAM  6.5MHz ±5KHZNTSC            4.5MHz ± 5KHZ寄生输出               :-60 dBc typical Mini -55dBc , measured at 15dB                 A/V ratio and with Modulator output level of+ 45 dBmV.载噪比               :60 dB Typical             视频(VIDEO)指标  输入电平           :1.0Vp-p(对87.5%调制度)输入阻抗           :75Ohms频率响应           :± 1 dB (Within 5MHz)信噪比               :60dB Typical      音频(AUDIO)指标  输入电平(对应正负        :140 mVrms. Manual gain adjust 25 KHz 偏移)       with front panel control.输入阻抗                    :Greater than 10 K Ω ,不平衡的预强调                        :PAL-B/G                           50 μSec                                     PAL-D/K, SECAM 50 μSecNTSC                           75 μSec        通用指标  直流电源输入  :+12V ± 5% at 160 mA typical, 180mA                               maximum. +5 V ± 5% at 460 mA typical,480 mA maximum.操作温度           :0~50℃尺寸                   :1”W*3.5”h *7.5”d(2.5cm)W*(8.9cm) H * (19.1 cm )*D

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