4 mW CATV RF Over Fiber Tx 45-870 MHz
RF Over Fiber Optical Transmitter – 1310nm | 4mW | 45–1000 MHz
The RF Over Fiber Optical Transmitter (4mW, 1310nm) is a high-performance solution designed to transport any RF signal over single-mode fiber with exceptional signal integrity and reliability. Supporting a wide frequency range of 45–1000 MHz, this unit enables seamless distribution of both analog and digital RF signals over long distances.
This transmitter directly converts incoming RF signals into optical signals, allowing all channels and services to be transported over a single fiber link. It is fully compatible with industry-standard RF over Glass (RFoG) systems and can operate with Thor Fiber receivers as well as third-party RF optical receivers.
Universal RF Compatibility
This system supports virtually all RF modulation formats within the 45–1000 MHz range, including:
- Analog TV (NTSC / PAL / SECAM)
- Digital QAM (DVB-C, J.83 Annex B)
- ATSC (8VSB)
- QPSK (satellite IF downconverted to L-band within range)
- FM radio and other RF-based services
Real System Diagram Using Thor Products
Example signal flow: HDMI sources enter a Thor modulator, the RF output feeds an RF optical transmitter, the fiber is split using PLC splitters, and multiple optical RF receivers convert the signal back to coax for TVs or local RF amplifiers.
Media Players, PCs
Transmitter can be used with any or Thor Fiber optical RF receivers
Key Features
- Wide RF Frequency Range: 45–1000 MHz
- Optical Output: 1310nm DFB laser, 4mW power
- Transport Type: RF over Fiber (RFoG compatible)
- Full Spectrum Transport: Carries all RF channels simultaneously over one fiber
- High Linearity: Ensures low distortion for digital and analog signals
- Automatic Gain Control (AGC): Maintains consistent RF performance
- Point-to-Point & Point-to-Multipoint:
- Direct fiber link
- Passive Optical Network (PON) using PLC splitters (1x2, 1x4, 1x8, etc.)
- Front Panel LCD Display: Real-time monitoring, alarms, and status
- Redundant Power Supply (Optional): Increased system reliability
Typical Applications
1. CATV & Hospitality TV Distribution
Deliver dozens or hundreds of TV channels from a central headend to multiple buildings or rooms using fiber instead of coax.
2. Multi-Building RF Distribution
Transport RF signals between buildings, campuses, or facilities without signal degradation over long distances.
3. RF Over Fiber Backbone Replacement
Replace long coaxial cable runs with fiber to eliminate signal loss, noise, and grounding issues.
4. Stadiums & Large Venues
Distribute RF signals across large areas such as stadiums, racetracks, and event venues using fiber infrastructure.
5. IPTV + RF Hybrid Systems
Use QAM or ATSC modulators (such as Thor Broadcast modulators) to generate RF channels, then distribute them over fiber.
6. Fiber-to-the-Home (FTTH) / RFoG Systems
Deploy RF overlay services alongside data networks using passive optical splitters.
7. Broadcast & Headend Signal Transport
Transport RF feeds between headend equipment rooms, remote transmitter sites, or monitoring locations.
System Architecture Options
Point-to-Point
- Transmitter → Single Fiber → Optical RF Receiver
- Ideal for direct long-distance links
Point-to-Multipoint (PON Architecture)
- Transmitter → Fiber → PLC Splitter → Multiple Receivers
- Efficient distribution to many locations using passive components
Compatibility
The transmitter works seamlessly with:
- Thor Fiber RF Optical Receivers
- Industry-standard RFoG optical nodes and receivers
- Passive optical components (PLC splitters, couplers)
Why Use RF Over Fiber?
- Low Signal Loss over Distance (compared to coax)
- Immunity to EMI/RFI interference
- Supports large channel counts
- Scalable architecture using optical splitters
- Cleaner signal for digital modulation (QAM / ATSC)
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.
The following CATV RF fiber optic transmitters are available. You can view all models here: CATV RF over Fiber Transmitters
- F-RF-TX-MN-2mW – Mini CATV RF Fiber Optic Transmitter, 1310 nm, compact design, 2 mW laser
- F-RF-1310-TX-4mW – CATV RF Fiber Optic Transmitter, 1310 nm, 45–1000 MHz, 4 mW laser
- F-RF-1310-TX-8mW – CATV RF Fiber Optic Transmitter, 1310 nm, 45–1000 MHz, 8 mW laser
- F-RF-1310-TX-16mW – CATV RF Fiber Optic Transmitter, 1310 nm, 45–1000 MHz, 16 mW laser
- F-RF-1310-TX-32mW – CATV RF Fiber Optic Transmitter, 1310 nm, 45–1000 MHz, 32 mW laser
- F-RF-1550-TX-8mW – CATV RF Fiber Optic Transmitter, 1550 nm, 45–1000 MHz, 8 mW laser
Other available models: 8 mW, 16 mW, and 32 mW versions in both 1310 nm and 1550 nm wavelengths.
| *All Specifiactions Subject to Change Without Notice | |||
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1x Type-F connector - 75 Ohm |
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1310nm | ||
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< 1 MHz FWHM | ||
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>20 dB XP | ||
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< -160 dB/Hz | ||
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4 mW (+6dBm) | ||
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>55 dB | ||
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SC/APC - Angle Polished 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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11-29 dBmV AGC Managed | ||
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<± 0.75 45 - 862 MHz | ||
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>17 dBm | ||
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>50 dB @ 10km fiber length | ||
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< -63 dB | ||
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< -57 dB | ||
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19 x 10 x 1.75 inch | ||
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2.5 kg | ||
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0 - 45 | ||