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UHF + UHF Antenna Diplexer

Discussion in 'Electronic Design' started by Rodney Josey, Jan 17, 2005.

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  1. Rodney Josey

    Rodney Josey Guest

    If I've posted to the wrong NG for this then please advise...:)

    Does anyone know if there is such a thing as a 'diplexer' for combining two UHF antenna's each
    pointing in different directions into a single cable prior to being input into an antenna amplifier
    ?

    I have need of 2 x UHF antennas - main one facing north for 4 free-to-air channels & a secondary one
    facing to the south for a separate single free-to-air channel. Now I can get a 'diplexer' for
    combining a VHF antenna plus a UHF antenna into a single cable which on taking one apart shows that
    the VHF side stripline resistive load is different than that used on the UHF side - so NO GO for
    using such a 'diplexer' when I need to combine 2 x UHF cables together into the one cable feeding
    into the input of an external aerial amplifier.

    Any ideas on what I could do to get this ?

    Oz-Rod
     
  2. combining two UHF antenna's each
    input into an antenna amplifier
    free-to-air channels & a secondary one
    together into the one cable feeding


    Yep - off the shelf stuff - try Alvin or Hills (assuming you are in OZ)
    73 de VK3BFA Andrew
     
  3. Rodney Josey

    Rodney Josey Guest

    Thanks Andrew. Am considering using a UHF splitter in reverse - hopefully the 3db loss will be
    compensated for in the masthead amp mounted a few feet below the two antennas.

    TIA.

    Oz-Rod
     
  4. Try something called a JoinTenna from ChannelMaster. I bought one from Dow
    Electronics (google that). You have to specify the channel you are adding.
    For example, I use a VHF/UHF to pick up all but one station. That other
    station comes from the oppposite direction, so I have a UHF pointed that way
    and join it to the other with a channel 10 JoinTenna.

    Regards.


     
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