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Diplexer schematic for gsm

Discussion in 'Home Brew' started by bushwacker, May 13, 2010.

  1. bushwacker

    bushwacker Active Member

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    I looking into whats available for diplexer schematics for cellular freqs.
    I need to diplex uplink and downlink GSM cellular frequencies.




    If anyone has any ideas please post em.
    Any and all links or ideas are welcome
     

  2. RickC.

    RickC. Hopeless antenna junkie

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    You're building one? What bands? You say cellular so I'd think 850/1900 but what do you have in mind?


    Rick
     
  3. mackmobile43

    mackmobile43 Jock Supporter

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    Maybe he gonna try to track down osama bin laden, but I thought osama used satellite.:D
     
  4. RickC.

    RickC. Hopeless antenna junkie

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    LMAO!!!

    Hey, if I see him I'll sure let you know!
     
  5. bushwacker

    bushwacker Active Member

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    Its for a bi directional amplifier.....
    800meg trunking and possibly gsm ( 800meg with 40 meg offset between up and down).

    Either way it just a 800-900 meg diplexer schematic that I wanted to take a look at.

    In certain industries....intrinsically safe radios are only allowed to be used. This means 800 meg radios and trunking systems.

    For cellular or 800 meg trunking the diplexer should be the same. I just need to diplex 2 signals in the 800 meg range with a maximum 40 meg offset.


    Track down Osama with a diplexer........ lol
    I don't think he's hiding up here in northern Canada

    But if I do hear him ....I'll split the reward with you
     

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