调制器,有线电视器材

调制器,有线电视器材
型号：WS-2500M
品牌：纬视
原产地：中国
类别：电子、电力 / 通信和广播电视设备 / 广播电视设备
标签︰ -
单价： ¥200 / 件
最少订量：1 件
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产品描述


FEATURES


★IF processing with three SAW filters.


   ★PLL technique with high precision.


  ★ Clamp circuit with high anti-hum performance.


  ★ Adopt MMIC circuit and surface-mounted technique on key parts


 


 


SPECIFICATIONS


 RF


 Freqency confine:          45 to 860MHz


Output Level:             35 to 55dBmv﹐continuously adjustable from front panel


Output Impedance:        75 ohm


Audio/Video Stability:      adjustable –10 to –20 dB below video carrier


Frequeucy Stability:        ±10KHz (±5KHz in aeronautical band)


Spurious Output:          65dB below video carrier With A/V ratio＠－20dB


RF output Return loss:     ≥14dB


 Video


 Input Level:              0.5Vp-p min for 87.5% modulation


    Input Type:                  Composite video negative sync


    Visual C/N:                  65dB＠ 6 MHz BW


    Frequency Response:          ±1.5 dB (30KHz to 6 MHz)


Hum and Noise:             －60 dB＠ 87.5%


Differential Gain(DG):       ≤3%


Differential Phase(DP):       ≤3°


 Audio 


Baseband Input Impedance:   600 ohms unbalanced


Baseband Input Level:         0.5Vp-p for 25KHz deviation


Pre-emphasis:                75 microsecond


Flatness:                    1.5 dB (50Hz to 15KHz)


Video/Audio Separation:      6.5MHz


 General


 Power Input:               180 to 230 VAC﹐50Hz 20W


Operating Temperature:      －10℃ to 40℃


Dimensions:                19″L×10.5″D×1.75″H


Weight:                    2.8Kg

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会员信息

深圳市伟视科技有限公司
国家/地区︰广东省深圳市
经营性质︰生产商
联系电话︰+8618688706870
联系人︰李俊 (经理)
最后上线︰2014/10/15

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