RF輸出 | |
輸出頻率範圍 | 45 ~ 300 MHz |
輸出電平 | 55 ± 3 dBmV |
可調輸出電平 | ≧ 14 dB |
雜散諧波 | ≧60dB以下的視頻載體 |
輸出阻抗 | 75Ω |
頻率精度/穩定性 | ± 5 kHz |
V/A載波功率比 | 11〜18dB± 2 dB可調 |
射頻輸出反射損耗 | 22dB |
測試點 | -20dB |
VIDEO | |
Input Level | 0.5Vp-p for 87.5% Mod. |
Input Type | Composite Video Negative Sync. |
視頻頻率響應 | ± 1.5dB |
調製範圍 | 0〜95%可調 |
輸入阻抗 | 75Ω |
微分增益 | 3% |
微分相位 | 0.7 |
視頻S / N比 | 60dB |
AUDIO | |
Input Level | 400mVp-p for ± 25KHz Dev. |
Audio Frequency | NTSC : 4.5MHz ± 0.5KHz above Video |
Audio Hamonic Distortion | 0.8 % |
Input Impedance | 500 Ω Unbalanced |
Pre-emphasis | NTSC : 75μs |
Audio Frequency Response | ± 0.8 dB |
音頻S / N比 | 57 dB |
一般 | |
電源要求 | NTSC制式:117V AC/60Hz/7W或220V AC/50Hz |
輔助交流插座 | NTSC制式:117V交流或220V AC/600W |
溫度範圍 | 0〜50℃ |
連接器 | RF輸出,視頻和音頻 |
Real size of the unit | 482 (W) x 76(D) x 44.5 (H) mm |
Dimensions | 520 (W) x 120 (D) x 66 (H) mm |
Packing | 1 set/Inner box, Gross Weight: 1.82Kgs |
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Front Panel Control, Easy To Operate High Output Level, Low Spurious
Adjacent Channel Capability
PLL Synthesized Channel Control
With SAW Filter for Accurate Side Band Response and High Adjacent Rejection
Spurious Harmonics 60dB down
Low Out-Of Band Noise for Multiple Modulator Installation
Video Modulation And Audio Deviation Level Adjustable
Overmodulation Indicator
Sound Carrier Level Adjustable
Field Defeatable Audio Pre-emphasis for BTSC Stereo / Mono Baseband Inputs
High VSB Attenuation
Meets F.C.C Offset and Accuracy Requirement
Built-in Power Supply for Easy Installation
19” EIA Rack Mountable
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Front Panel Control, Easy To Operate High Output Level, Low Spurious
Adjacent Channel Capability
PLL Synthesized Channel Control
With SAW Filter for Accurate Side Band Response and High Adjacent Rejection
Spurious Harmonics 60dB down
Low Out-Of Band Noise for Multiple Modulator Installation
Video Modulation And Audio Deviation Level Adjustable
Overmodulation Indicator
Sound Carrier Level Adjustable
Field Defeatable Audio Pre-emphasis for BTSC Stereo / Mono Baseband Inputs
High VSB Attenuation
Meets F.C.C Offset and Accuracy Requirement
Built-in Power Supply for Easy Installation
19” EIA Rack Mountable
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SK-16M 16 in 1 modulator Chassis
Features:
1. Easy setup, Internal fans for cooling modulators
2. Only one RF output. No need combiner
3. Precise frequency control with PLL circuitry
4. Each modulator has its control panel
5. Also available in NTSC, all PAL configuration
Specifications:
Frequency 47~860MHz
Output Level ≥105dBμV
Output Level Adj. Range 0~-20dB (Adjustable)
A/V Ration -10dB~-30dB (Adjustable)
Output Impedance 75Ω
Spurious Output ≥60dB
Frequency Accuracy ≤±5KHz
Output Return Loss ≥12dB(VHF); ≥10dB(UHF)
Video Input Level 1.0Vp-p(87.5% Modulation)
Input Impedance 75Ω
Differential Gain ≤5%(87.5% Modulation)
Differential Phase ≤5°(87.5% Modulation)
Group Delay ≤45 ns
Visual Flatness ±1dB
Depth Adjust 0~90%
Video S/N ≥55dB
Audio Input Level 1Vp-p(±50KHz)
Audio Input Impedance 600Ω
Audio S/N ≥57dB
Audio Pre-emphasis 50μs
Dimension 19Inch 4U standard Size
MODULATOR COMBINER HEADEND
Features:
1. SAW Filtered
2. PLL Controlled Oscillator
3. Low Out-of-Band Noise
4. LED Channel Display(860MINI)
5. Microprocessor Controlled
Specifications:
備註: 以上規格如有錯誤,則以原廠公佈為準
規格:
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RF特性 | |
輸出頻率範圍 | 48-860MHz |
輸出電平 | > 90dB |
輸出電平可調節範圍 | 0-20dB |
影像/伴音功率比(V/A) | 12dB±2dB |
射頻輸出阻抗 | 75歐姆 |
寄生輸出抑制比 | ≧56 dB |
射頻輸出反射損耗 | ≧10 dB |
基本規格 | |
工作電源 | 90~250ACV 50/60Hz |
體機 | 479mm*245mm*164.5mm |
工作溫度 | 0~45℃ |
工作濕度 | 20~80% , 非密封 |
儲存溫度 | -20~80℃ |
Tuner-T(數位電視) | |
RF輸入 | 75歐姆, F型 |
RF輸出 | 75歐姆, F型 |
輸入頻率 | 174-230MHz, 470-860MHz |
輸入電平 | -25~-65dBm |
符碼率 | 3.6~6.952Mb/s |
帶寬 | 7MHz(174~230MHz),8MHz(470~860MHz) |
Viterb改錯碼 | 1/2 , 2/3 , 3/4 , 5/6 7/8 |
載波模式 | 2K , 8K |
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| Real Size of the unit | 25 (W) x 190 (D) x 89 (H) mm | |||||||||||||||||||||||||||||||||||||||||||||||
Measurement | 276 (W) x 133(D) x 60(H) mm | ||||||||||||||||||||||||||||||||||||||||||||||||
Packing | 1 Set / Inner Box, Gross weight: 0.35Kgs | ||||||||||||||||||||||||||||||||||||||||||||||||
| 24 Sets / Carton / 9.4Kgs/ 400 (W) x295 (D) x590 (H) mm | ||||||||||||||||||||||||||||||||||||||||||||||||
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