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Agile Demodulator (T990C)
 Agile Demodulator (T990C) |
Product Description
1. Summary:
T990c is one practical and economical modulator manufactured by our company. Equipped with double frequency conversion LNB, CPU control technology, and easy to change RF output frequency by 0. 25MHz stepping frequency, it is the first choice emergency standby equipment for medium and small sized TV system...
2. Features:
Double digital PLL, CPU control.
Output RF modulation frequency is adjustable in the range of 48~550MHz.
Preset standard channels enable to select any channel at discretion.
Audio carrier 4. 5/5. 5/6. 0/6. 5MHz is selectable on panel.
Every channel carrier can be trimmed by 0. 25MHz.
Automatic storage, memory after power off.
3. Parameters:
Item Unit Parameter
RF Parameter
Output Frequency MHz 48. 25~860
Max Output Level dB¦ÌV VHF 116 UHF 114
V/A Carrier Power Ratio dB 10~30
Spurious Rejection dB ¡Ý62
Freq Accuracy KHz ¡Ü3. 8
Video Parameter
Video Mod Depth % 87. 5
Freq Response Within dB ¡Ü1. 7
Differential Gain % ¡Ü3
Differential Phase ° ¡Ü3
C/L Delay ns ¡Ü25
Video S/N dB ¡Ý50
Audio Parameter
Audio Dev dB ± 50
Audio Freq Response dB ¡Ü1. 2
Audio S/N dB 60
General Performance
Power Supply V/A 180~240/ 0. 5
Temperature º C 0~40
| Model NO.: | T990C |
|---|---|
| Company: | Hangzhou Topu Optic Co., Ltd. |
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