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• Professional Digital TV Processor Download Pdf
• Professional IRDs Download Pdf |
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| CATV Adjacent Agile Modulator Bank |
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SMA-701
SMA-701 Modulator Bank offers a compact CATV Headend with a 19” chassis and 8 slots for analog or digital plug-in modules. It supports the conversion of QPSK/QAM/COFDM signal to the traditional RF carrier such as PAL, NTSC or SECAM. The tuner-saved TS modules share descrambled streams from the master module, which supports Common Interface and could descramble several streams at the same time (Multi-decryption function should be supported by CAM ). Migration from analog CATV system to digital could be achieved with different modules in one chassis.
Main Features
* Supports Common Interface and multi-decryption CI CAMs
* Combined DVB receiver and Analog TV modulator on each slot
* Worldwide Analog TV standards, including A2 and NICAM
* Tuner-saved design by TS sharing among slots
* Easy configuration through External control unit
* 48MHz to 860MHz full band adjacent agile alignment
* RF output level: 110dBμV/ch
* Spurious less than -60dBc (110dBμV/ch@25 ℃ )
* Main Frame supports all future modules, rack mount or wall mount
* High price and performance ratio and easy maintainance
Module Cards
SMA-701MF Main Frame (Power supply, Combiner and Amplifier)
SMA-701CU Control unit
SMA-701PM-13S - QPSK to PAL B/G
SMA-701PM-13C - QAM to PAL B/G
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Specifications:
SMA-701MF: |
Interface |
Slot for modules |
8 |
RF Output port interface |
75Ω, F-female |
Test Port (-20dB) interface |
75Ω, F-female |
RF Output Return Loss |
≥12dB (VHF) ≥10dB (UHF) |
Output Level |
100dBμV/ch |
Output Level accuracy |
± 3dB (47 to 862MHz; 0 to 45 ℃ ) |
Harmonics and Spurious |
60dBc typ.; 56dBc min. |
Miscellaneous |
Power supply |
90~250ACV, 50/60Hz |
Power consumption |
200Watts Max. |
Main Frame Dimensions |
434mm*340.5mm*160.5mm |
Operation Temperature |
0~45 C |
Recommended Operation Humidity |
20~80% Non-condensed |
Storage Temperature |
-20~80 C |
SMA-701PM-S: |
Tuner |
RF input |
75Ω, F type |
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RF output |
75Ω, F type |
Input Frequency Range |
950~2150MHz |
Input Level |
-25~-65dBm |
Symbol Rate |
2~45Mb/s |
Rolling Off Factor |
0.20 or 0.35 |
Punctured Rated |
1/2, 2/3, 3/4, 5/6, 6/7, 7/8 |
Reeds Salomon Decoding |
204, 188 T=8 & I=12 |
LNB Power |
13V, 18V Switchable |
LNB Switch |
0, 22KHz and DiSEqC 1.0 |
CI |
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CI PCMCIA Module Slot One PCMCIA type |
Fully support Irdeto, Viaccess, NDS and other Common Interface system |
SMA-701PM-C: |
Tuner |
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RF input |
75Ω, F type |
RF output |
75Ω, IEC type |
input frequency |
40~860MHz |
input level |
40~85dBμV @ 64QAM |
QAM Mode |
16, 32, 64, 128, 256QAM |
symbol rate |
2.5~6.952MSym/s |
CI |
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CI PCMCIA Module Slot One PCMCIA type |
Fully support Irdeto, Viaccess, NDS and other Common Interface system |
SMA-701PM/RM series: |
RF |
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Video Carrier Frequency Range |
48.25~860.25MHz(Adjustable, step by 1MHz) |
Power Level Attenuation |
0~18dB (Adjustable, step by 1dB) |
Picture Carrier Accuracy |
≤±5KHz (VHF); ≤±10KHz (UHF) |
Audio Carrier Frequency (main) |
6.5MHz (D/K,L) |
6.0MHz |
5.5MHz |
4.5MHz |
Audio Carrier Frequency Accuracy |
±2KHz |
Video/Audio Carrier Ratio (main) |
12dB/16dB selectable |
Audio Carrier Frequency (second) |
6.742MHz (D/K) |
6.258MHz |
5.742MHz |
4.724MHz |
Video/Audio Carrier Ratio (second) |
20Db |
Video Modulation index |
77.5~97.5%, step by 1% (D/K,B/G,I,M/N) |
Audio Modulation deviation peak-peak |
40~160KHz, step by 10KHz (B/G,D/K,I) |
20~80KHz, step by 5KHz (M/N) |
Video |
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K2T |
≤4% |
Video S/N Ratio |
≥45dB (8ch combined) |
Frequency Response |
≤±1 dB |
Differential Gain |
≤4% |
Differential Phase |
≤4° |
C/L Delay |
≤45ns |
Audio |
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Pre-emphasis time constant |
50μS (B/G,D/K,I) |
75μS (M/N) |
Total Harmonic Distortion |
≤1% |
Frequency Response |
≤±1.5dB (40Hz~15KHz) |
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