Labgear splitter/combiners

These devices are used for splitting and combining satellite quality co-ax cables such as WF100, CT100 or RG6. They are bi-directional for the video signals and so perform two functions. Firstly, they are used to split signals from the external antenna eg FM/DAB from the antenna or UHF from the aerial prior to decoding. Secondly, they can be used for combining decoded ouput from the modulated RF output of a VCR, a digibox or a modulator, prior to becoming the uplink to the distribution amplifier.

The relevance of the various types depends on the application for which you intend to use it. The bandwidth capability needs to be very high (up to 2400MHz) if you are working with satellite signals. In some cases you need to allow a DC electric current from equipment to power devices, eg the satellite LNB device or a remote IR receiver, whilst preventing this current being passed to other equipment, hence some versions have "DC blocking" or uni-directional "power-pass".

All connections require the use of 'F' type fittings on the co-ax cable.

Labgear FJU402 2 way splitter for UHF

The Labgear FJU402 splits 1 into 2 or combines 2 into 1. This unit allows DC and IR pass-through both ways on both ports. The unit has a 3.5dB loss between 5 and 40Mhz, rising to 4dB at 1000Mhz. This permits the use of remotely located IR control systems, such as the Labgear Handylink and Digilink or the Channel Plus 5 volt system built into the Channel Plus DA-8200HHR distribution amplifier and Channel Plus 5500 series modulators.

This unit should not be used when passing un-decoded satellite signals because the bandwidth is restricted to UHF frequencies, ie below 1000MHz.

For an example of the wiring layout in which you would use the FJU402, see here.

Labgear FBS402 2 way splitter, Ultra Wide Band

In situations where higher bandwidth is required, use the FBS402. This Labgear FBS402 2 way splitter handles frequencies from 5 to 2400MHz, making it suitable for situations involving undecoded Sky or Freesat signals, for example where you want to have two alternative Sky box locations of which only one will be used at a time. Like the FJU402 this also has DC pass through on both ports but in this case the DC pass is only in one direction - from the two split ports back to the single input port. The FBS402 unit has a 4dB loss between 5 and 40Mhz, rising to 6dB at 2300Mhz.

For an example of the wiring layout in which you would use the FBS402, see here.

Labgear WBS2F 2 way splitter, Ultra Wide Band with DC pass on one port, and block on the other

The Labgear WBS2F splitter handles the same frequency range as the FBS402, but restricts the power pass to just one of the output ports. This "power-pass" is bi-directional. The other port will receive the signal feed but the DC power is blocked. The WBS2F has a 5.0dB loss between 40 and 1000Mhz, rising to 6.0dB at 2300Mhz.

For an example of the wiring layout in which you would use the WBS2F, see here.

Labgear WBS3F 3 way splitter, Ultra Wide Band with DC pass on one port

The Labgear WBS3F is a 3 way version of the WBS2F restricting the power pass to just one of the output ports. This "power-pass" is bi-directional. The other ports will receive the signal feed but the DC power is blocked.

Labgear FJU704 4 way splitter for UHF

Same range as FJU402 which allows DC and IR pass-through both ways on all ports. The FJU704 has a 6.8dB loss between 5 and 40Mhz, rising to 8dB at 1000Mhz.

For an example of the wiring layout in which you would use the FJU704, see here.

Labgear FBS126 6 way splitter, Ultra Wide Band

Same range as FBS402. This handles frequencies from 5 to 2400MHz, making it suitable for situations involving undecoded Sky or Freesat signals. Like the FBS402 this has DC pass through on all ports but only in one direction - from the six split ports back to the single input port. The FBS126 unit has a 11.0dB loss between 40 and 1000Mhz, rising to 16.5dB at 2300Mhz.

Labgear FBS138 8 way splitter, Ultra Wide Band

Same range as FBS402. This handles frequencies from 5 to 2400MHz, making it suitable for situations involving undecoded Sky or Freesat signals. Like the FBS402 this has DC pass through on both ports but only in one direction - from the eight split ports back to the single input port. The FBS138 has a 12.0dB loss between 40 and 1000Mhz, rising to 18.0dB at 2300Mhz.