Thor Optical Mini CATV RF Transmitter 45-1000Mhz
CATV RF over fiber optical Transmitter 45-1000Mhz
The Thor Fiber Optical Mini CATV RF 45-1000Mhz Transmitter is mainly used for transmitting long-distance optical fiber transmission of CATV RF - Analog or digital QAM or ATSC Television Digital TV, telephone, and data transmission. It's an application for digital signal transmission of video and data in the cable television and communications industry. The transmission range can vary from 5km to 30km. It comes equipped with an advanced DFB laser that readily provides exceptionally high performance and RF power, as well as automatic processing technology developed by our company. Finally, it has a built-in micro-computer that automatically monitors the control system and guarantees the excellent performance of the equipment.
The F-RF-TX-MN-2 transmitter can be used with any or Thor Fiber optical RF receivers -
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Thor Fiber Optical Mini FTTH RF CATV CABLE TV Receiver with Dual Coax Output |
Optical Mini-node - CATV RF Receiver with Return Path - High RF Output Power 48dBmV |
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The PN F-RF-TX/RX-MN-2mW Transmitter Receiver kit is a TX F-RF-TX-MN-2 + F-RF-RX-MN-2
The transmission distance of optical signals depends on the Optical TX output power and the receiving power range of the optical receiver. For example, the transmitting power for this unit is about +2 dBm, and the receiving power of the incoming signal and RX sensitivity for the F-RF-RX-NM2 is about -5 dBm, which creates an optical budget of 7 dB. Therefore, the maximum allowable loss in the optical fiber or network is 7 dB. The loss in fiber on a 1310 nm optical signal is about 0.35 dB per kilometer. Additionally, there is always some loss with interconnections on the optical connectors or optical patch panels.
- 45 -1000MHz working bandwidth
- High-performance DFB coaxial laser that has a great linking performance and stable output
- Advanced CPU processing and an auto-monitoring system to supervise the operational status which leads to a longer life of the laser
- Low power loss design(less than 8W) which creates a very low operational temperature
IMPORTANT NOTE*** (it is very important to interface our unit with SC/APC - Angle Polished Connector to avoid any light reflections.
If your fiber is terminated with the SC, ST, FC /PC flat connector, you need to use an optical jumper from PC type to SC/APC for proper conversion.
F-RF-TX-MN-2mW - 1310nm 2mW laser up to10 Km over fiber
F-RF-TX-MN-2mW-1550 - 1550nm 2mW laser up to10 Km over fiber
F-RF-TX-MN-10mW - 1310nm 10mW laser up to 40Km over fiber
The device is usually sold as a Transmitter + Receiver kit allowing CATV RF transmission point to point over the fiber
F-RF-TX/RX-MN-2mW CATV Transmitter + receiver kit
| F-RF-TX-MN-2mW | F-RF-RX-MN-2mW |
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| Item | Unit | Technical specification |
| Wavelength | nm | 1310nm ± 20 |
| Laser type | DFB laser | |
| Optical modulation type | Direct optical strength modulation | |
| Optical connector type |
SC/APC IMPORTANT NOTE*** (it is very important to interface our unit with SC/APC - Angle Polished Connector to avoid any light reflections. If your fiber is terminated with the SC, ST, FC /PC flat connector, you need to use an optical jumper from PC type to SC/APC for proper conversion. |
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| Frequency range | MHz | 45-862/1000 |
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RF input level |
dBuV |
72~82 |
| Flatness in band | dB |
±0.75 |
| Rf input resistance | 75 | |
| Input reflection loss | dB |
≥16 |
| Link C/N | dB |
≥51 |
| Link C/CSO | dB |
≥60 |
| Link C/CTB | dB |
≥65 |
| AGC controlling range | dB | ±5 |
| MGC controlling | dB | 0~10 |
| Power Supply | V | 12V DC / 1.5A AC to DC power supply - Incuded ( F-Type Female coax connector) |
| Power Loss | W |
≤ 8 |
| Dimension | mm | 140 x 90 x 26 |
Quick Installation guide
The Mini Transmitter and Mini Receiver set are plug and play devices if the RF input power to the TX and optical power Input to the RX are in the specified range.
TX RF INPUT 15-25dBmV (75-85dBuV) RX Optical INPUT should be +2 - 6dBm
TRANSMITTER:
1) Connect Power Supply to the Transmitter
2) Connect CATV RF Input to the F port connector - Please note, the RF Power should be between 15-25dBmV (75-85dBuV)
3) Connect fiber optic cable to the Mini Transmitter Output - The Connector type MUST be SC/APC, never use SC/PC (Blue flat connector) NEVER LOOK DIRECTLY INTO THE UNITS OPTICAL OUTPUT (you could burn your eye)
4 ) For short distance, point to point transmission, please plug 5db fiber optic attenuator, included in the box. (if the transmitter is used with a fiber optic splitter, the attenuator is not needed due to splitters insertion loss). The fiber loss is about 0.35db/km in 1310nm wavelength there is also some slight loss in path panel junctions typically 0.1 -0.5db per junction
5) The TX should show "ON" on the LCD, meaning it is transmitting and outputting an optical signal.
RECEIVER:
1) Connect POWER Supply to the Receiver, "No Light Input" or "Level too Low" the LED will be RED
2) Connect CATV RF cable to the F port connector - RF Output, the output will be about 22dBmV (82 dBuV)
3) Connect fiber optic cable to the Mini Receiver INPUT – The Connector type MUST be SC/APC, never use SC/PC (Blue flat connector) NEVER LOOK DIRECTLY TO THE FIBER JUMPER. (You will burn your eye)
4) The Optical level by the receiver should be about +2 to -6dBm
5) The LED should turn from RED to GREEN
5a) The RED LED means no Link Light detector
5b) The red light might also mean saturation, LEVEL TOO HIGH, it is easy to determine when you plug in the optical jumper the unit will go from RED to GREEN to RED again, it means the optical level is higher than +2Dbm , the receiver will still work correctly if this level will be not higher than +5dbm, If higher then +5, please add 5db attenuator included with your purchase.