Diplexers & Multi Switches

What is a diplexer?

A diplexer is used as a signal combiner and/or signal separator. It basically combines and/or separates signals between the frequencies of 5-860MHz & 950-2150MHz. Usually RF frequencies operate between the frequencies of 5-860MHz and satellite output from a LNBF operates within the frequency range of 950-2150MHz. Therefore, you can combine both your cable TV or antenna signal along with your satellite signal and transfer them both using a single RG6 cable, eliminating having to drill additional holes and wiring additional cable.

Diplexers

Multi Switches

SATELLITE DIPLEXER

Satellite Diplexer EDIP-1

A satellite diplexer is used outside to combine two separate signals: one signal from the satellite dish and another signal from either an off-air TV antenna or cable TV feed into a single coaxial cable. A second diplexer is used inside behind the satellite receiver to separate the combined signals. Satellite diplexers eliminate the need for extra wiring thereby reducing the cost of labor and installation materials necessary to run two coaxial drops.

Combining Satellite Diplexers with Multi Switches

3x4 Multi-Switch

A satellite multi-switch can be used outside to combine the signals from the satellite dish with signals from either an off-air TV antenna or cable TV feed in conjunction with a satellite diplexer inside to separate those signals before they enter the satellite receiver.

WIRING DIAGRAM / 4-WAY Multiswitch

WIRING DIAGRAM / 8-WAY Multiswitch

High-Frequency Digital Splitter (3 Meg)

5-3000 MHz High Frequency Splitter. Recommended for broad-band services, high-speed cable and satellite Internet. Allows high bit rate transfer and communication. Alloy cast metal. Weatherproof housing. Both ports power-passing. Professional Quality. You cannot find better quality and construction - anywhere - at any price.

UHF/VHF 75 OHM SIGNAL SPLITTER

RF Signal Splitter

FREQUENCY RANGE: 5 - 1000 MHz. DC ~ SIGNAL ONLY. NON-POWER PASSIVE. RF signal splitters are used primarily to add additional outlets to your existing cable TV service or split the output of your satellite receiver to more than one television. Two, Three, Four, and eight way RF signal splitters are available at this site.

COAXIAL JUMPERS

You'll need coax jumpers to Insert multiswitches, diplexers and splitters. You can make your own or you can purchase them pre-made. Use these professionally molded coaxial jumpers with confidence.

· Use RG59 jumpers to connect RF output: Satellite Receiver to TV or VCR; VCR to TV; Satellite Meters to LNB's; Any Test Equipment with F-Connectors.

· Use Heavier Gauge RG6 Coaxial Jumpers to connect diplexers, in-line amps, switches, and other electronic components between the satellite dish antenna and the satellite receiver.

A multiswitch is a device used with a quattro LNB to distribute satellite TV signals to multiple (usually more than four) receivers from a single dish and LNB.

A typical K_u band universal LNB can be switched between four modes (two frequency ranges and two polarisations) selected by signals from the receiver (supply voltage for polarisation and presence or absence of a 22 kHz tone for frequency range). This means that each receiver needs a separate feed and twin-tuner receivers (such as sky+ and freest+) need two separate feeds. For small numbers of receivers a multi-output LNB is used and all the feeds are taken straight from the LNB but there is a limit to the number of outputs that can reasonably be placed on a LNB.

So for larger installations a quattro LNB is used in conjunction with a multiswitch. The quattro LNB provides the signals for all four of the

modes at the same time. The multi switch then selects which of these signals to send to each receiver . For very large installations the signals from the LNB can be split and fed to more than one multi switch. Typically a larger dish is used to make up for the extra losses in the longer cable runs and the multi switches.

Some multi switches can also mix in terrestrial TV and FM radio signals which can then be split out again by a special faceplate (known as a trip lexer). This allows satellite, TV and radio service to be supplied down a single cable saving on installation costs.

Multi switches are commonly installed on or in blocks of flats in the UK to allow all the residents to receive satellite TV without having to have a separate dish for every resident.