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  Diplexer
  Diplexer
 
MSRP $17.99
Price $16.49
On Sale $14.99
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Availability: Usually Ships in 24 Hours
Product Code: 014-002
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Description Technical Specs
 
Diplexers allow direct broadcast satellite TV signals from the disht o the receivert o piggyback on one regular coaxial cable, along with lower-frequency signals from an outdoor terrestrial TVantenna for local channels. This is useful in homes which are already pre-wired, because it eliminates the need to install extra cables. However, the pre-wired cables must be the higher-quality RG-6. The less-expensive RG-59will not pass the higher frequency band (usually 950 to 1450 MHz) output by the satellite TV LNB.

In this case, one diplexer joins the two signals together. Another diplexer then separates the signals to the receiver of the TV set and the IRD of the DBS set-top box. More complex systems have a distribution amplifier, which allows each IRD to access multiple LNBs with different antenna polarizations. These usually have an antenna input and a diplexer, so that the antenna signal is also distributed along with the satellite.

Diplexers are also commonly used to combine UHF TV and VHF TV and FM signals onto one down lead, which can then be split back into its component parts as required.
 



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