台湾纬能WAM-520 模组捷变調制器
分类: 台湾纬能(WINERSAT)有线设备  发布时间: 2011-05-28 13:57 

台湾纬能WAM-520 模组捷变調制器
WAM-520 模組式捷變調制器

    射頻(RF)指標 

輸出頻率範圍 PAL-B/G 48 to 860 MHz;
                           PAL-D/K, SECAM 48 to 860 MHz
                           NTSC 54 to 860 MHz
輸出電平           + 45 dBmV (minimum 15dB adjustment range.)
輸出阻抗           75 Ohms
圖像伴音功率比     -9 ~ -30dBc連續可調
頻率精準度     ± 5KHZ
聲音頻率精穩度     PAL-B/G         5.5MHz ± 5KHZ
PAL-D/K, SECAM  6.5MHz ±5KHZ
NTSC            4.5MHz ± 5KHZ
寄生輸出               -60 dBc typical Mini -55dBc , measured at 15dB
                 A/V ratio and with Modulator output level of
+ 45 dBmV.
載噪比               60 dB Typical

 視頻(VIDEO)指標 

輸入電平           1.0Vp-p(87.5%調制度)
輸入阻抗           75Ohms
頻率響應           ± 1 dB (Within 5MHz)
信噪比               60dB Typical

音頻(AUDIO)指標 

輸入電平(對應正負        140 mVrms. Manual gain adjust
25 KHz 偏移量)      with front panel control.
輸入阻抗                    Greater than 10 K Ω ,不平衡的
預強調                        PAL-B/G                           50 μSec
                                    PAL-D/K, SECAM 50 μSec
NTSC                           75 μSec

  通用指標 

直流電源輸入 +12V ± 5% at 160 mA typical, 180mA
                             maximum. +5 V ± 5% at 460 mA typical
,480 mA maximum.
操作溫度           0~50℃
尺寸                   1”W*3.5”h *7.5”d(2.5cm)W
*(8.9cm) H * (19.1 cm )*D
重量                   0.3Kg
 
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