6 LNB's satellite distribution system for MDU over 1 fiber - DWDM- High Power

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Fiber Optic 6 LNB to SWM Switch Extender System for 6 Polarity Satellite TV -DWDM 

The F-LB61-DWDM system from Thor Broadcast is designed to deliver 6 independent coax feeds from satellite antennas over fiber optic cable. These systems are similar to the standard LB61 systems from Thor, but with upgraded laser optics compatible with EDFA optical amplifiers.  L-Band fiber optic transmitters are designed to overcome the distance limitations of coax cables in satellite TV systems.  In addition to delivering satellite TV, DWDM type systems can also be used to deliver Internet or Data services over the same fiber.  This allows delivery of triple play type systems over a single strand of fiber optic cable.

The most recent advances in some premium satellite TV content provider packages now use additional polarities from a third LNB.  These systems have 5 or 6 coax cables leading up to the satellite dish antenna. For satellite TV LTTH systems that require more than 4 antenna coax feeds, Thor F-LB61 systems now provide support for up to 6.  This system integrates 6 independent and customizable DWDM laser systems in one chassis.  Each laser converts the incoming satellite TV signal into a fiber optic signal in the DWDM range.  Since the optical signal output is DWDM, this platform is ideal for use with EDFA optical amplifiers.  Any standard configuration F-LB61-DWTX transmitter is an ideal starting point for entry level LTTH systems requiring service to more than 16 locations.  Since the output can be optically amplified with EDFAs, this transmitter can serve as a starting point in a scalable system.  As more locations require service, additional optical amplifiers can be purchased instead of requiring additional expensive transmitters.  In addition to delivering satellite TV without needing satellite dishes, LTTH and F-LB61 can integrate high speed optical internet service via GPON or AE.  These technologies allow the internet service to be delivered over the same fiber as the satellite TV service.  The fiber cable can be split in the field, and fan out to cover additional areas.

Thor LTTH (L-Band to the Home) systems allow community developers and MDU operators to offer residents satellite TV and high speed internet services without the need to install satellite antennas at each location. LTTH uses a single master satellite Antenna as the signal source and distributes the complete antenna signal including multiple polarities over a single strand of singlemode fiber optic cable (SM-FOC).  LTTH is similar to Thor FTTH and other fiber to the home systems but is designed specifically for satellite TV distribution requiring multiple coax runs to the antenna.  Traditional FTTH systems do not operate at L-Band frequencies and are usually based on a single optical RF channel at 1550nm.  LTTH is based on multiple RF laser transmitters with all optical multiplexers and passives built into the unit.  All RF inputs are combined into a single fiber optic output that can be amplified and distributed through multiple levels of EDFAs and PLCs.  LTTH allows delivery of higher bandwidth satellite TV services with the convenience of terrestrial cable FTTH type architectures.


  •  Integrates 6 RFoG laser systems for satellite TV in one enclosure

  •  All 6 Lasers are DWDM type based on ITU-100GHz with 1.4nm ch spacing

  •  Supports ultra wide frequency range (up to 45-3000 MHz) for all world systems

  •  Scalable platform for satellite TV over fiber LTTH systems up to 5000+ receivers

  •  Delivers entire satellite lineup to each receiver, equivalent to 6 coax cables

  •  Fully customizable for any optical channels in the ITU-100GHz system

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. 

Model Selection

F-LB61-TX/RX - 6 LNB over fiber up to 20Km

F-LB61-TX/RX-40 - 6 LNB over fiber up to 40Km

F-LB61-TX/RX-80 - 6 LNB over fiber up to 80Km

F-SNMP ( IP Ethernet SNMP monitoring option for the transmitter and receiver )


*All Specifiactions Subject to Change Without Notice

  • RF Inputs

4x Type-F 75 Ohm

  • Frequency Range

950-2400 MHz

250-2800 MHz

45-3000 MHz

  • RF Input Power Level

(-25) - (+14) dBmV

  • Optical Wavelengths Available (nm)
  • ITU-100GHz Channel Spacing

1577.03    1547.72    1562.23    1533.47    1569.59    1540.56    1554.94
1576.20    1546.92    1561.42    1532.68    1568.11    1539.77    1554.13
1575.37    1546.12    1560.61    1531.90    1567.95    1538.98    1553.33
1574.54    1545.32    1559.79    1531.12    1567.13    1538.19    1552.52
1573.71    1544.53    1558.98    1530.33    1566.31    1537.40    1551.72
1572.89    1543.73    1558.17    1529.55    1565.50    1536.61    1550.92
1572.06    1542.94    1557.36    1528.77    1564.68    1535.82    1550.12
1571.24    1542.14    1556.56    1527.99    1563.86    1535.04    1549.32
1570.42    1541.35    1555.75    1527.22    1563.05    1534.25    1548.52
1526.44    1525.66    1524.89    1524.11    1523.34    1522.56    1521.79

  • Optical Output Port Options

*Multiple Outputs by Request

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. 

  • Optical Output Power Level

+6.0 dBm  ±1.0 dB

  • Optional Features

Secondary Power Supply

Internal EDFA Preamplifier

Internal Amp & Coupler

  • Power Supply

110 / 220 VAC External 12V DC

  • Power Consumption


  • Dimensions
19 x15 x 1.75
  • Weight

1.75 kg

  • Operating Temperature

0 - 65 C°

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4GHz Mini Analog RF over fiber transport equipment. Transmitter has SMA 50ohm electrical interface and accepts Analog RF signal up to 4000Mhz, units come standard with optical FC/APC output. The receiver accepts an optical signal from it's FC/APC port and converts it back to the electrical RF. These units are ideal for transporting high frequency RF over fiber where copper can not complete the application due to its inherent distance limitations.

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