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Digital Tv Equipment And System

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CATV Modulator Bank Digital TV Equipment and System 16-channels Main Frame SMA-1600MF Specification Output Frequency Range RF Output Level Operating Temperature Relative Humidity Power Supply Dimension Net Weight 47MHz~862MHz （PAL-B/G） 48MHz~862MHz (PAL D/K) 54MHz~804MHz （NTSC） 105 dBμV (per channel)，117dBμV in total 0￣45°C ≤90%(non-condensed) 180ACV to 260ACV,50Hz±2Hz, 80 Watt Max. (16 modules equipped) 483mm×195mm×176mm ~13Kg（16 modules equipped） Modulator Modules SMA-1600M（Fixed-channel） SMA-1600MUV（Agile frequency） Specification Specification Output Frequency Range Channel Bandwidth RF Output Level Output Level Adjust Range Video/Audio Carrier Power Ratio Spurious Rejection RF Output Return Loss Carrier Frequency Accuracy Video Modulation Depth Output Impedance Differential Gain Differential Phase C/L Delay △ τ Video Flatness Video S/N Ratio Audio Frequency Audio Pre-emphasis Audio Modulation Deviation Audio Flatness Audio Harmonic Distortion Audio S/N Ratio Operating Temperature Relative Humidity Power Supply Dimension Net Weight Parameters 47MHz~862MHz （PAL B/G） 48MHz~862MHz (PAL D/K) 54MHz~804MHz （NTSC） 7MHz & 8MHz （PAL B/G） 8MHz （PAL D/K） 6MHz（NTSC） 105 dBμV (per channel) 0 ~ -20dB (Continuously adjustable) 10~20dB (Continuously adjustable) SMA-1600M: ≥60dB SMA-1600MUV: ≥57dB ≥12dB (VHF); ≥10dB (UHF) VHF —△ f — ≤5 KHz UHF —△ f — ≤10 KHz 87.5% @Video input level 1Vp-p 75Ω 5% Max. @ 87.5% Modulation depth 5°Max. —△ τ — ≤45ns ≤2dB 50dB min. (single module) 5.5MHz±2KHz (PAL B/G) 6.5MHz±2KHz (PAL D/K) 4.5MHz±2KHz (NTSC) 50μs(PAL B/G、PAL D/K) 75μs(NTSC) ±50KHz @ Audio input level is 0dBm±6dB ±1.5dB ≤1% 58dB min. (single module) 0 ～ 45°C ≤90%(non-condensed) SMA-1600M: +5DCV±5%, ~ 2.5 Watt Max. SMA-1600MUV: +5DCV±5%, ~ 3 Watt Max. 159mm×134mm×25mm ~100g No.3 Feng Zhi East Road, Xi Bei Wang Town, Hai Dian District, Beijing, 100094, China Tel: +86-10-57802000 Fax: +86-10-57802016 E-mail: [email protected] 104